COMPOSITION FOR SKIN TREATMENT

专利摘要:
skin care composition the compositions and methods of the present invention refer to skin care compositions that contain: (a) linear, hydrophobic and hydrophilic cellulose particles having an average length of about 1 to about 1000 (mi) m, a particle aspect ratio of about 1000 to about 2 and a thickness of about 1 to about 500 (mi) m; (b) amphiphilic linear cellulose particles derived from sources selected from the following group: citrus pulp, sugar beet pulp, banana pulp, mango pulp, apple pulp, passion fruit pulp and tomato pulp and the like, said particles having an average size of about 1 to about 1000 (mi) m, a particle aspect ratio of about 1000 to about 2 and a thickness of about 1 to about 500 (mi) m; the ratio of ingredient (b) to ingredient (a) is from about 1:10 to about 10: 1; and a cosmetically acceptable vehicle.
公开号:BR112015010553B1
申请号:R112015010553-0
申请日:2013-11-06
公开日:2020-09-15
发明作者:Patricia Bonner；Claudia Kaminski；Danielle Lima Lorenzetti；Prithwiraj Maitra；Jeffrey M. Wu；Juliana Salles Moscardi
申请人:Johnson & Johnson Consumer Companies, Inc；
IPC主号:

专利说明:

[0001] The present request is a request for continuation-in part of the US application 13 / 799,467 filed on March 13, 2012, which claims the benefit of the provisional application US 61 / 724,646 filed on November 9, 2012, whose full descriptions are hereby incorporated by reference for all purposes. Field of invention
[0002] The compositions of the present invention refer to skin care compositions that reduce the presence of oil related substances in the skin and that contain hydrophobic and / or hydrophilic linear cellulose particles and amphiphilic linear cellulose particles. Background of the invention
[0003] Oily skin is shiny, thick and faint in color. Chronically oily skin often has coarse pores and pimples and other embarrassing spots. In addition, chronically oily skin may be prone to the development of blackheads. In this type of skin, the oil-producing sebaceous glands are hyperactive and produce more oil than is necessary. The oil flows out of the follicles and gives the skin an unwanted fatty glow. The pores are enlarged and the skin has a coarse appearance. Although oily skin is common in teenagers, it can occur at any age.
[0004] Generally, individuals who have oily skin try to treat oily areas, in order to avoid acne outbreaks and to decrease shine. The conventional treatments available include soaps or cleansing creams based on surfactant, astringent with alcohol and clay or clay masks. Oil-absorbing materials like clay or salt have also been used to try to treat this condition.
[0005] Individuals who have oily or shiny skin conditions prefer a treatment that can remove shine without drying out the skin. However, there is a lack of effective skin care products on the market today that address this consumer need. Oil-absorbent particles like silica, aluminum starch, and talc have been used in cleaning products to help dry oil from the skin's surface, but they also tend to dry the skin and oily, shiny skin tends to return quickly, usually in two to three hours.
[0006] Thus, it would be desirable to have compositions and treatment methods that address the condition of oily skin, keeping the skin hydrated. Summary of the invention
[0007] The compositions and methods of the present invention refer to skin care compositions comprising (a) linear cellulose particles selected from the group consisting of hydrophobic and hydrophilic linear cellulose particles, hydrophobic and hydrophilic linear cellulose particles having an average length of about 1 to about 1000 pm, a particle aspect ratio of about 1000 to about 2 and a thickness of about 1 to about 500 pm (ingredient (a)); (b) amphiphilic linear cellulose particles derived from sources selected from the group consisting of citrus pulp, sugar beet pulp, banana pulp, mango pulp, apple pulp, passion fruit pulp and tomato pulp, the cellulose particles amphiphilic lines having an average size of about 1 to about 1000 pm, a particle aspect ratio of about 1000 to about 2 and a thickness of about 1 to about 500 pm (ingredient b); and a cosmetically acceptable vehicle, the ratio of ingredient (b) to ingredient (a) is from about 1:10 to about 10: 1. More preferably, the ratio of ingredient (b) to ingredient (a) is from about 1: 1 to about 4: 1. Most preferably, the ratio is from about 1: 1 to about 2: 1.
[0008] The compositions of the present invention can be formulated and used as compositions to be left on the application surface as moisturizers, bases or the like, or they can be formulated and can also be used as rinse-off compositions, like cleaning products, exfoliants , masks or similar. Surprisingly, the compositions of this invention containing both ingredient (a) and ingredient (b) have an unexpectedly faster and higher level of water absorption and retention properties compared to compositions containing any of the ingredient (a ) or ingredient (b) alone. Description of the drawings
[0009] FIGURE 1 is a graph of the infrared spectrum of the various cotton powders and cellulose particles;
[0010] FIGURE 2 is a graph of the infrared spectrum of various solvent extracts from the hydrophobic cotton powder and dimethicone;
[0011] FIGURE 3 is a graph illustrating the oil absorption rates of the hydrophilic and hydrophobic cotton powder;
[0012] FIGURE 4 is a graph of the water absorption rate measured from the various hydrophobic and hydrophilic cotton powders and amphiphilic citrus derivative powders;
[0013] FIGURE 5 is a graph illustrating the average oil absorption capacity of various hydrophobic and hydrophilic cotton powders;
[0014] FIGURE 6 is a graph that illustrates the average water absorption capacity of various hydrophobic and hydrophilic cotton powders;
[0015] FIGURE 7 is a graph that illustrates the reduction of sebum in various formulations of cleaning products containing cotton powder;
[0016] FIGURE 8 is a graph illustrating the average tallow measurements of various cleaning product formulations over time;
[0017] FIGURE 9 is a graph that illustrates the average water absorption capacity of various cellulose powders;
[0018] FIGURE 10 is a graph illustrating the absorption of squalene by compositions containing hydrophobic cotton and citrus-derived powders;
[0019] FIGURE 11 is a graph illustrating the absorption of squalene by compositions containing hydrophobic cotton and citrus-derived powders;
[0020] FIGURE 12 is a graph that illustrates the absorption of squalene by compositions containing powders derived from citrus and hydrophilic cotton;
[0021] FIGURE 13 is a graph illustrating the comparative oil absorption of combinations of cotton powders and citrus derivatives in different amounts;
[0022] FIGURE 14 is a graph illustrating the absorption of water by compositions containing powders derived from citrus and hydrophobic cotton;
[0023] FIGURE 15 is a graph illustrating the absorption of water by compositions containing hydrophobic cotton and citrus-derived powders;
[0024] FIGURE 16 is a graph that illustrates the absorption of water by compositions containing citrus-derived and hydrophilic powders; and
[0025] FIGURE 17 is a graph illustrating the comparative water absorption of combinations of cotton powders and citrus derivatives in different amounts. Detailed Description
[0026] For use in the present invention, the term "hydrophobic" means materials having an angle of surface contact with squalene less than 40 degrees and / or an angle of surface contact with water greater than 90 degrees. The term "amphiphilic" means a compound or material that has both hydrophilic (i.e., affinity for water) and lipophilic or hydrophobic (i.e., affinity for fat) properties. Such materials generally comprise molecules having a water-soluble polar group attached to a water-insoluble hydrocarbon chain and have a contact angle of the surface with water greater than 90 degrees.
[0027] For use in the present invention, the term hydrophilic "means materials having a surface contact angle with water less than 90 degrees. The term" surface contact angle "means the internal angle between a surface and a liquid droplet resting on the surface. Surface tension (liquid) or surface free energy (solid) is considered to be a resulting balance between molecular interactions in liquid-liquid and air-liquid or solid-solid and air-solid phases. in the interfacial layer. The term "contact angle" is a convenient and useful parameter for determining the free surface energy and wettability of any given solid surface, due to the non-deformability of the solid. The contact angle is determined by measuring the angle formed between the substrate surface where a liquid droplet is placed and the tangent to the droplet surface from the point of contact. High contact angles correspond to a poor humidity liquid cement surface and low contact angles mean good wetting. If a liquid spreads on the surface, the contact angle is considered to be zero and complete wetting is said to occur.
[0028] Contact angle measurements can be used to determine the wettability of human skin by a variety of liquids, including hydrophobic liquids, such as squalene and hydrophilic liquids, including water. A smaller contact angle with a non-polar liquid (such as squalene) corresponds to a more hydrophobic material, while a smaller contact angle with water corresponds to a more hydrophilic material.
[0029] According to the methods and compositions of the present invention, the angle of contact with water of the linear, hydrophobic cellulose particles is preferably greater than 90 degrees, preferably greater than 100 degrees and, with more preferably greater than 120 degrees.
[0030] According to the methods and compositions of the present invention, the angle of contact with water of the hydrophilic cellulose particles, linear, is preferably less than 90 degrees, preferably less than 60 degrees.
[0031] Certain materials, called amphiphilic, exhibit both hydrophobic and hydrophilic behaviors, due to the presence of a hydrophobic main chain structure with molecular hydrophilic functional groups fixed on the hydrophobic main chain side. These materials can have a wide angle of contact with water droplets, for example, greater than 90 degrees, while smaller particles are attached to, or elevate, water droplets. This may also consist of a hydrophilic backbone structure with hydrophobic materials partially coated in particles or bulky hydrophilic materials.
[0032] For use in the present invention, the term "oil absorption and retention capacity" refers to the weight percentage of oil absorbed by the hydrophobic and hydrophilic linear cellulose particles useful in the compositions and methods of the present invention. The high oil absorption and retention capacity corresponds to an increase in the hydrophobic property. The oil absorption and retention capacity of the hydrophobic and hydrophilic linear cellulose particles of the compositions of the present invention is preferably from about 150 to about 500, and more preferably, from about 300 to about 500% by weight of oil / weight of particles.
[0033] For use in the present invention, the term "particle" means a small localized object to which physical properties such as volume or mass can be attributed. For use in the present invention, the terms "powder (s)" and "fibers" are used interchangeably with "particles", as defined here.
[0034] For use in the present invention, the term "linear particle" means a particle having a dimension ("length") that is greater than another dimension ("width"). Linear particles can be measured and defined by size by subjecting these particles to analysis with respect to a series of mesh screens having different frame sizes. In general, a sample of linear particles can have a particle size distribution throughout the sample. Thus, the sizes of linear particles as expressed here are expressed as an average particle size and reflect the average length of the particles contained within the sample.
[0035] Preferably, the size of linear particles useful in the compositions and methods of the present invention is less than about 1000 pm in length, more preferably, ranges from about 1 to about 1000 pm, and most preferably , from about 10 to about 500 pm. The preferred width of the linear particles useful in the compositions and methods of the present invention is about 5 to about 25 µm. More preferably, they are about 5 to about 20 pm wide.
[0036] For use in the present invention, the term "particle aspect ratio" means the ratio of a particle's length to its width. Preferably, the particle aspect ratio of the particles useful in the compositions and methods of the present invention is about 2 to about 1000. More preferably, the particle aspect ratio is about 2 to about 500 and, most preferably, from about 5 to about 200.
[0037] For use in the present invention, the term "cellulose" refers to a polysaccharide material composed of long unbranched chains of linked glucose units, having the chemical structure shown in Formula I below:

[0038] Cellulose, the most abundant biomass on the earth's surface, has provided humanity with a renewable and low-cost, functional raw material.
[0039] Cellulose particles useful in the compositions and methods of the present invention can be derived from cotton, corn, wood pulp and bamboo pulp, silk, cork and the like. Preferably, the cellulose particles useful in the compositions of the present invention are derived from cotton. More preferably, cellulosic particles are particles recovered from post-industrial scrap. This scrap is derived from residues or other pre-consumer cotton products from, for example, the garment, carpet, furniture and household goods industries. Regenerated or synthetic cotton or cellulose materials can also be used as sources for cellulose particles useful in the compositions and methods of the present invention, including rayon, viscose, cellophane, and other cellulosic materials with a uniform and reproducible molecular size and distribution.
[0040] Cellulose particles useful in the compositions and methods of the present invention can be derived directly from the original plant (here called "raw" particles) or can be generated from cloth or non-woven materials previously formed from plant particles or cellulose (here called "regenerated" particles). For example, cotton fabrics can be processed to break the cloth into small particles and / or particles of uniform length, reducing the length of the cotton particles from inches to microns. This random cut particle is available in varying degrees, white, dark and unbleached, with average particle lengths from about 1 micron to about 1000 microns and, preferably, from about 2 microns to about 500 microns.
[0041] Typical mechanical milling processes such as those that are useful in reducing the size of cellulose particles useful in the compositions and methods of the present invention, for example, are described in US Patent no. 7,594,619 and US Patent No. 6,656,487, which are hereby incorporated by reference.
[0042] In general, cellulose particles useful in the compositions of the present invention can be processed according to the following methods.
[0043] Such a method comprises mixing a cellulosic material derived from post-industrial scrap, as defined above, with at least one of the crushing aids selected from the group including water, fatty acids, synthetic polymers and organic solvents, and, after the mixture, mechanically grind the mixture.
[0044] Another method of obtaining cellulose particles is to freeze a cellulosic material derived from post-industrial scrap, at a low temperature, and then mechanically crush said frozen material.
[0045] Cellulose particles useful in the compositions and methods of the present invention can be further treated with hydrophobic agents for the production of hydrophobic cellulose particles. For example, a hydrophobic coating agent can be used to treat cellulose particles. The hydrophobic coating agent can be any agent known to one skilled in the art. Preferred hydrophobic coating agents react chemically with the cellulose particle to provide a durable covalent bond with it and have hydrophobic chemical substituents or backbones that can provide a hydrophobic outer layer around each individual cellulosic particle. The coating agent can react, for example, with hydroxyl groups, available from the oxygen atoms present on the surface of the cellulose particle being coated.
[0046] Hydrophobic agents may include, but are not limited to, organic compounds with low water solubility, such as metallic soap, for example, a metallic myristate, metallic stearate, metallic palmitate, a metallic laurate or other fatty acid derivatives known to a element versed in the technique. Other hydrophobic agents may include an organic wax, such as a synthetic wax, such as polyethylene or a natural wax, such as carnauba wax. Hydrophobic agents useful in coating cellulose particles useful in the compositions and methods of the present invention can also be fatty acids or long-chain esters, such as stearic acid, oleic acid, castor oil, isododecane, silicone, and their derivatives, non-polymers water-soluble, for example, high molecular weight methylcellulose and ethylcellulose, and high molecular weight water-insoluble fluoropolymers etc., siloxanes or polysiloxanes polymerized with the chemical formula [R2SÍO] n, where R is an organic group, such as methyl, ethyl, or phenyl, such as dimethicone, dimethicone copolyol, dimethicone ester; methicone and its derivatives. Examples of hydrophobic linear cotton particles useful in the present invention include, but are not limited to, Cotton Fiber Flake CD60, available from Goonvean Fiber and White Cotton Flake W200, available from the International Fiber Corporation.
[0047] A combination of linear hydrophobic and hydrophilic cellulose particles with linear amphiphilic cellulose particles can also be used according to the compositions and methods of the present invention. Preferably, such compositions should contain from about 10 to about 20 weight percent linear amphiphilic cellulose particles and from about 80 to about 90 weight percent linear hydrophobic cellulose particles and / or hydrophilic.
[0048] In one embodiment, the amphiphilic linear cellulose particles used in the composition of the invention are cellulose particles derived from highly refined citrus fruits. Such highly refined citrus-derived cellulose particles can be produced according to the description given in US Patent Nos. 7,094,317, which is incorporated by reference. A highly refined citrus-derived cellulosic product can be prepared by generally mild treatment and still provide properties that are equivalent to, or improved upon, properties of better highly refined cellulose products produced from environmentally damaging and more intense processes. Vegetable or fruit cells with an exclusively parenchymal cell wall structure can be treated with a generally mild process to form highly absorbent microfibers. Sugar beet cells and citrus fruits are particularly available in large volumes to allow volume processing to generate highly refined cellulose particles with both unique and improved properties. These exclusively parenchymal microfibers (later in this document called EPM's) have improved moisture retention and thickening properties that allow particles to provide unique benefits when combined in edible products (eg baked goods, liquefied foods, beaten foods, meats , loads of meat, dairy products, yogurt, frozen food dishes, ice cream, etc.) and in mixtures that can be used to generate edible food products (for example, bakery ingredients, low hydration or dehydrated products).
[0049] A process for the production of HRC cellulose from the parenchyma cell wall, for example, by-products of citrus fruits and sugar beet, is carried out in the absence of a hydroxide immersion step. This is a significant advance over the prior art, as described by the patents by Chen and Lundberg. Dinand, et al. (US patent No. 5,964,983) also recommends the use of a chemical treatment step in addition to bleaching. In the present invention, greater functionality (measured as viscosity) is achieved in comparison with Dinand et al. although less chemical treatment is used, which is probably due to a greater amount of chemical and shear energy placed in the materials. The product is capable of exhibiting the same or better water retention properties and physical properties of the more vigorously refined agricultural products of the prior art and, in some cases, can provide even higher values of water retention, thickening and other properties that can produce unique benefits in particular fields of use.
[0050] The highly refined citrus-derived cellulose particles comprise microfibers derived from organic vegetable mass comprising at least 50% by weight of the entire fiber mass as the mass of the parenchymal particle, the highly refined cellulose product having a retention capacity of alkaline water of at least about 25 g H2O / g of dry highly refined cellulose particles. Highly refined cellulose particles can have a water holding capacity of at least 50 g H2O / g of dry, highly refined cellulose product.
[0051] For use in the present invention, the term "dry" or "dry product" refers to a mass that contains less than 15% by weight of particles such as water. The mass of organic particles comprises at least 50% by weight of the mass of particles from organic products selected from the group consisting of sugar beet, citrus fruit, grapes, tomatoes, chicory, potatoes, pineapple, apple, carrots and blackberries. A food product or food additive can have at least 0.05 weight percent solids present in the food product or food additive of the highly refined cellulose particles described above. The food product can also have at least about one percent or at least about two percent by weight of the highly refined cellulosic particles of the invention.
[0052] The term "leave-on" as used here indicates that the compositions of the present invention are intended to be applied and allowed to remain on the skin. These leave-on compositions must be distinguished from compositions that are applied to the skin and subsequently removed either by washing, rinsing, scrubbing or the like. The term "rinse" as used here indicates that the compositions of the present invention are used in a context such that the composition is finally rinsed or washed off the treated surface, (for example, skin or hard surfaces), either after or during product application. These rinse compositions must be distinguished from the compositions that are applied to the skin and can remain on the skin after application
[0053] The rinse compositions of this invention can be formulated into a wide variety of personal care rinse compositions, including, but not limited to, liquid cleaning creams, gel cleaning creams, creamy cleaning creams, soaps and makeup removers.
[0054] Compositions to be left on the application surface (leave-on) of the present invention can be formulated in a wide variety of compositions to be left on the application surface for personal care, including, but not limited to, lotions, creams, ointments, gels, tonics, sprays, aerosols, conditioners, body and hand lotions, facial moisturizers, solid gel sticks, sunscreens, anti-acne preparations, topical pain relievers, masks, makeup, antiperspirants and deodorants.
[0055] The topical cosmetic compositions of the present invention may contain a carrier, which must be a pharmaceutically and / or cosmetically acceptable carrier. The vehicle must be suitable for topical application to the skin, must have good aesthetic properties and must be compatible with other components in the composition.
[0056] These types of products can comprise several types of topically cosmetically acceptable vehicles, including, but not limited to, solutions, emulsions (eg, microemulsions and nanoemulsions) gels, solids and liposomes. The following are non-limiting examples of such vehicles. Other vehicles can be formulated by the elements skilled in the art.
[0057] Topical compositions useful according to the present invention can be formulated as solutions. The solutions typically include an aqueous solvent (for example, from about 50% to about 99, 99% by weight or from about 90% to about 99% by weight of a cosmetically suitable aqueous solvent).
[0058] Topical compositions useful in the present invention can be formulated as a solution comprising an emollient. Such compositions preferably contain from about 2% to about 50% by weight of an emollient (s). As used here, the term "emollients" refers to materials used to prevent or relieve dryness, as well as to protect the skin. A wide variety of suitable emollients are known and can be used in the present invention. Sagarin, Cosmetics, Science and Technology, 2nd Edition, Volume 1, pages 32 to 43 (1972) and the International Cosmetic Ingredient Dictionary and Handbook, Wenninger and McEwen, pp. 1656-61, 1626, and 1654-55 (The Cosmetic, Toiletry, and Fragrance Assoc., Washington, D.C., 7th Edition, 1997) (later in this document "ICI Handbook") contain numerous examples of suitable materials.
[0059] A lotion can be made from a solution. Lotions typically comprise from about 1% to about 20% by weight (e.g., from about 5% to about 10%) of an emollient (s) and from about 50% to about 90% by weight (for example, from about 60% to about 80%) of water.
[0060] Another type of product that can be formulated from a solution is a cream. A cream typically comprises from about 5% to about 50% by weight (e.g., from about 10% to about 20%) of an emollient (s) and from about 45% to about 85% by weight (for example, from about 50% to about 75%) of water.
[0061] Another type of product that can be formulated from a solution is an ointment. An ointment can comprise a simple base of oils of animal or vegetable origin or semi-solid hydrocarbons. An ointment can comprise from about 2% to about 10% by weight of an emollient (s) and from about 0.1% to about 2% by weight of a thickening agent (s). A more complete description of thickening agents or viscosity-increasing agents useful in the present invention can be found in Sagarin, Cosmetics, Science and Technology, 2a. Edition, Volume 1, pages 72-73 (1972), and in the ICI Handbook, pages 1693-1697.
[0062] Topical compositions useful in the present invention are formulated as emulsions. If the vehicle is an emulsion, from about 1% to about 10% by weight (e.g., from about 2% to about 5%) of the vehicle comprises one or more emulsifiers. Emulsifiers can be non-ionic, anionic or cationic. Suitable emulsifiers are disclosed, for example, in U.S. Patent No. 3,755,560, U.S. Patent No. 4,421,769, McCutcheon's Detergents and Emulsifiers, United States Edition, pp. 317-324 (1986), and in the ICI Handbook, pp.1673-1686.
[0063] Lotions and creams can be formulated as emulsions. Typically, such lotions comprise from 0.5% to about 5% by weight of an emulsifier (s). These creams can typically comprise from about 1% to about 20% by weight (e.g., from about 5% to about 10%) of an emollient (s); from about 20% to about 80% by weight (for example, from 30% to about 70%) of water; and from about 1% to about 10% by weight (e.g., about 2% to about 5%) of an emulsifier (s).
[0064] Preparations of simple emulsions for the treatment of the skin, such as lotions and creams, of the oil in water and water in oil type are well known in the cosmetic art and are useful in the present invention. Multiphase emulsion compositions, such as the type of water in oil in water, as disclosed in U.S. Patent Nos. 4,254,105 and 4,960,764, are also useful in the present invention. In general, such single or multiphase emulsions contain water, emollients and emulsifiers as essential ingredients.
[0065] The topical compositions of that invention can also be formulated as a gel (for example, an aqueous gel using a suitable gelling agent (s)). Gelling agents suitable for aqueous gels include, but are not limited to, natural gums, acrylic acid and acrylate polymers and copolymers, and cellulose derivatives (e.g., hydroxy methyl cellulose and hydroxypropyl cellulose). Gelling agents suitable for oils (such as mineral oil) include, but are not limited to, hydrogenated butylene / ethylene / styrene copolymer and hydrogenated ethylene / propylene / styrene copolymer. Such gels typically comprise between about 0.1% and 5%, by weight, of these gelling agents.
[0066] Topical compositions to be left on the application surface (leave-on compositions) of the present invention can also be formulated as a suspension. In such a case, the compositions of the present invention preferably contain a suspending agent. For use in the present invention, the term "suspending agent" means any material known or otherwise effective in providing properties of suspension, gelling, viscosification, solidification and / or thickening for the composition or which otherwise provides a framework for forming the final product. These suspending agents include gelling agents, and polymeric or non-polymeric or inorganic viscosifying or thickening agents. These materials will typically be solid under ambient conditions and include organic solids, crystalline silicone solids, or other gelling agents, inorganic particles, such as clays or silicas, or combinations thereof.
[0067] The concentration and type of suspending agent selected for topical use in the topical leave-on compositions of the present invention will vary, depending on the hardness characteristics of the desired product, rheology, and / or other characteristics of related products. For most suspending agents suitable for use in the present invention, total concentrations range from about 0.1% to about 40%, more typically, from about 0.1% to about 35%, by weight of the composition. Concentrations of the suspending agent will tend to be lower for liquids (for example, pressurized sprays or other liquids, for rolling, etc.) and higher for semi-solids (for example, soft solids or creams) or cleaning creams or solid sticks. Preferably, suspending agents are present in the compositions of the present invention in an amount of about 0.1% to about 40% by weight, more preferably, suspending agents are present in an amount of about 0, 1% to about 30% by weight.
[0068] Non-limiting examples of suitable suspending agents include hydrogenated castor oil (e.g. MP80 castor wax, castor wax, etc.), fatty alcohols (e.g., stearyl alcohol), solid paraffins, triglycerides and other esters similar solid suspension or other microcrystalline waxes, silicone and modified silicone waxes. Non-limiting examples of optional suspending agents suitable for use in the present invention are described in US Patent No. 5,976,514 (Guskey et al.), US Patent No. 5,891,424 (Bretzler et al.), The descriptions of which are incorporated herein by reference.
[0069] Other suitable suspending agents include silicone elastomers in concentrations ranging from about 0.1% to about 10% by weight of the composition. Non-limiting examples of such silicone elastomer materials suitable for use as a suspending agent herein are described in US Patent No. 5,654,362 (Schulz, Jr. et al.); US patent No. 6,060,546 (Powell et al.) and US patent No. 5,919,437 (Lee et al.), the descriptions of which are incorporated herein by reference. These silicone elastomer materials can also be added for their skin feel benefit or other cosmetic benefits alone, or for any benefits in combination with the benefits of the suspending agent.
[0070] The topical compositions of the present invention can also be formulated in a solid formulation (for example, wax-based stick, soap bar composition, powder, or a handkerchief containing powder).
[0071] Topical compositions useful in the present invention may contain, in addition to the components mentioned above, a wide variety of additional oil-soluble and / or water-soluble materials conventionally used in compositions intended for use on the skin, hair and nails, in their levels established in the technique. Additional cosmetically active agents
[0072] In one embodiment, topical compositions comprise yet another cosmetically active agent in addition to cellulose particles. A "cosmetically active agent" is a compound that has a cosmetic or therapeutic effect on the skin, hair, or nails, for example, bleaching agents, darkening agents such as self-tanning agents, anti-acne agents, anti-aging agents brightness control, antimicrobial agents, anti-inflammatory agents, antimycotics, antiparasitic agents, external analgesics, sunscreens, photoprotectors, antioxidants, keratolytic agents, detergents / surfactants, moisturizers, nutrients, vitamins, energy intensifiers, antiperspirants, astringents deodorants, hair removers, firming agents, anti-caking agents, and agents for conditioning hair, nails, and / or skin.
[0073] In one embodiment, the agent is selected from, but not limited to, hydroxy acids, benzoyl peroxide, sulfur resorcinol, ascorbic acid, D-panthenol, hydroquinone, octyl methoxycinimate, titanium dioxide, octyl salicylate, homosalate, avobenzone, polyphenols, carotenoids, free radical scavengers, spin traps, retinoids such as retinol and retinyl palmitate, ceramides, polyunsaturated fatty acids, essential fatty acids, enzymes, enzyme inhibitors, minerals, hormones such as estrogens, steroids such as hydrocortisone , 2-dimethyl amino ethanol, copper salts such as copper chloride, copper-containing peptides such as Cu: Gly-His-Lys, coenzyme Q10, peptides such as those disclosed in US Patent No. 6,620,419, lipoic acid, amino acids such as proline and tyrosine, vitamins, lactobionic acid, acetyl-coenzyme A, niacin, riboflavin, thiamine, ribose, electron transporters like NADH and FADH2, and other botanical extracts like aloe vera, and deri and mixtures thereof. The cosmetically active agent will typically be present in the composition of the invention in an amount of about 0.001% to about 20% by weight of the composition, for example, about 0.01% to about 10% like about 0.1% about 5%.
[0074] Examples of vitamins include, but are not limited to, vitamin A, vitamin B, such as vitamin B3, vitamin B5, and vitamin B12, vitamin C, vitamin K, and vitamin E and derivatives of these substances.
[0075] Examples of hydroxy acids include, but are not limited to, glycolic acid, lactic acid, malic acid, salicylic acid, citric acid and tartaric acid and the like.
[0076] Examples of antioxidants include, but are not limited to, water-soluble antioxidants such as sulfhydryl compounds and their derivatives (eg, sodium metabisulfite and N-acetyl-cysteine), lipoic acid and dihydrolipoic acid, resveratrol, lactoferrin, and acid ascorbic acid and ascorbic acid derivatives (for example, ascorbyl palmitate and ascorbyl polypeptide). Oil-soluble antioxidants suitable for use in the compositions of this invention include, but are not limited to, butylated hydroxytoluene, retinoids (e.g., retinol and retinyl palmitate), tocopherols (e.g., tocopherol acetate), tocotrienols and ubiquinone. Natural extracts containing antioxidants suitable for use in the compositions of this invention include, but are not limited to, extracts containing flavonoids and isoflavonoids and their derivatives (e.g., genistein and diadzein), extracts containing resveratrol and the like. Examples of natural extracts include grape seed, green tea, pine cork and propolis. Other examples of antioxidants can be found on pages 1612-13 of the ICI Handbook. Other materials
[0077] Various other materials can also be present in compositions useful in the present invention. These include humectants, proteins and polypeptides, preservatives and an alkaline agent. Examples of these agents are presented in ICI Handbook, pages 1650-1667.
[0078] The compositions of the present invention may also comprise chelating agents (for example, EDTA) and preservatives (for example, parabens). Examples of suitable preservatives and chelating agents are mentioned on pages 1626 and 1654-55 of the ICI Handbook. In addition, topical compositions useful in the present invention may contain conventional cosmetic adjuvants, such as dyes, opacifiers (e.g. titanium dioxide), pigments and fragrances.
[0079] Linear cellulose particles useful in the compositions of the present invention have been found to have excellent water and oil absorption properties. It is believed that compositions of the present invention containing hydrophobic cellulose particles can absorb sebum from the skin, thus reducing the shine of the skin. The compositions of the present invention are also believed to protect the skin barrier by forming a hydrophobic layer on the skin surface and preventing the penetration of surfactants, emulsifiers or other potentially irritating ingredients. In addition, such a hydrophobic layer formed on the skin surface should reduce the loss of trans-epithelial water and increase skin hydration. However, in some cases, it may be desirable for the cellulose particles to have increased or decreased hydrophobic or hydrophilic properties.
In this way, the linear cellulose particles useful in the compositions of the present invention can be treated with additional hydrophobic agents or hydrophilic agents, thereby enhancing the hydrophobic and / or hydrophilic properties, respectively, as desired. Hydrophobic agents may include, but are not limited to, organic compounds with low water solubility, such as fatty acids or long-chain esters, such as stearic acid, oleic acid, castor oil, isododecane, silicone, and their derivatives, non-polymers soluble in water, for example, methylcellulose and ethylcellulose of high molecular weight, and fluoropolymers insoluble in water of high molecular weight etc., siloxanes or polysiloxanes polymerized with the chemical formula [R2SÍO] n, where R is an organic group, such as methyl, ethyl, or phenyl, such as dimethicone, dimethicone copolyol, dimethicone ester; methicone and its derivatives. Hydrophilic agents, such as water-soluble polymers, for example, low molecular weight methyl cellulose or hydroxypropyl methyl cellulose (PMC); sugars, for example, monosaccharides, such as fructose and glucose, disaccharides such as lactose, sucrose, or polysaccharides such as cellulose, amylose, dextran, etc., and low molecular polyvinyl alcohol, and hydrated silica, can also be used to enhance hydrophilic properties cellulose particles in the compositions of the present invention.
[0081] In one embodiment, linear cellulose particles can be formulated with amphiphilic cellulose particles to enhance both water absorption and oil absorption. Examples of such amphiphilic cellulose particles include, but are not limited to, citrus and corn particles. Amphiphilic cellulose particles according to the present invention are believed to be composed of both hydrophobic and hydrophilic fractions, exhibiting both water-absorbing and oil-absorbing properties. In particular, many amphiphilic cellulose particles contain hydrophilic cellulosic compounds by volume, but they also contain proteins and lipids that are coated on the surface of the citrus cellulose particles to produce a hydrophobic surface property.
[0082] It was also found that the textures of the compositions formulated with the linear cellulose particles of the present invention are "soft", silky and smooth and aesthetically pleasing to the touch during and after application. The term "soft" as used herein refers to the apparent density of linear cellulose particles useful in the compositions of the present invention. The apparent density of the linear cellulose particles useful in the compositions of the present invention is preferably from about 0.1 to about 2 (g / cm3), more preferably, from about 0.15 to about 1, 8 g / cm3, and, most preferably, from about 0.15 to about 1.6 g / cm3. Preferably, the linear cellulose particles useful in the compositions of the present invention are present in the compositions in an amount of about 1 to about 20% by weight of the compositions, more preferably, from about 1 to about 10% by weight of the compositions and, most preferably, in an amount of about 1 to about 6% by weight of the compositions.
[0083] The compositions of the present invention can also be formulated and used as compositions for treating rinse skin such as cleaning and scrap compositions, and the like. Thus, in addition to linear cellulose particles and linear amphiphilic cellulose particles, the rinse compositions of the present invention preferably contain at least one cleaning agent selected from the group consisting of fatty acid soaps and synthetic surfactants and / or a mixture of such materials. Optionally, the compositions of the present invention contain one or more skin conditioning agents. The compositions of the present invention can also contain one or more therapeutic skin agents. Preferably, the pH of the compositions of the invention is in the range of about 2 to about 11. More preferably, the pH ranges from about 3 to about 10.
[0084] The compositions of the present invention may contain fatty acid soaps containing from about 6 to about 22 carbon atoms, preferably from about 8 to about 18 carbon atoms, and more preferably from about 12 about 18 carbon atoms. Fatty acid soaps having from about 8 to about 18 carbon atoms are preferably present in the compositions of the invention in an amount of about 1 to about 60%.
[0085] Preferably, the fatty acid soaps useful in the compositions of the present invention are organic soaps obtained using organic neutralizers, including, but not limited to, ammonium soap, trialcanolamine soap, aminomethyl propanol soap, aminomethyl propanedial soap and tromethamine soap, more preferably, triethanolamine soap and aminomethyl propanol soap and the like.
[0086] [0086] Synthetic surfactants that are useful in the compositions of the present invention are preferably selected from synthetic anionic, non-ionic, amphoteric and zwitterionic surfactants. Preferably, they are present in the compositions of the present invention in amounts from about 1 to about 40% by weight, more preferably, from about 1 to about 30% and, most preferably, from about 5 to about 30% by weight of the composition. Amphoteric and synthetic surfactants
[0087] Synthetic ampholytic detergents can be widely described as derived from aliphatic amines that contain a long chain of about 8 to 18 carbon atoms and a solubilizing group in anionic water. Examples of compounds that fall within this definition are sodium 3-dodecyl amino propionate, sodium 3-dodecyl amino propane sulfonate and ammonium dodecyl dimethyl hexanoate. Other examples of ampholytic and amphoteric surfactants are found in US Patent No. 3,318,817, issued to Cunningham 15 on May 9, 1967 and hereby incorporated by way of reference.
[0088] [0088] The preferred specific examples of amphoteric surfactants are those that have the formula:
Sodium lauroanfoacetate Synthetic zwitterionic surfactants
[0089] Zwitterionic surface active agents are widely described as internally neutralized derivatives of aliphatic quaternary ammonium, tertiary sulfonium and phosphonium compounds, where the aliphatic radical can be in a straight or branched chain and where one of the aliphatic substituents contains 8 at 18 carbon atoms and one of the aliphatic substituents contains a solubilizing group in anionic water, for example, carboxy, sulfo, sulfate, phosphate, or phosphono. Some of these zwitterionic surfactants are described in the following US Patent Nos: 2,129,264; 2,178,353; 2,774,786; 2,813,898; and 2,828,332.
[0090] The specific preferred examples of Zwitterionic surfactants are those that have the formula:
Cocamido propil sultaina
[0091] Water-soluble betaine-based surfactants are another example of a zwitterionic surfactant useful in the present invention. These materials have the general formula:
Cocamidopropyl betaine
[0092] Examples of suitable betaine compounds of this type include ammonium dodecyl dimethyl acetate, ammonium tetradecyl dimethyl acetate, ammonium alkyl dimethyl acetate, where the alkyl group has an average of about 12 to 18 carbon atoms in length, dodecyl ammonium dimethyl butanoate, ammonium tetradecyl dimethyl butanoate, ammonium hexadecyl dimethyl butanoate, ammonium dodecyl dimethyl hexanoate, ammonium hexadecyl dimethyl hexanoate, ammonium tetradecyl dimethyl pentanoate and ammonium tetradecyl pentanoate. Specifically, preferred betaine-based surfactants include ammonium dodecyl dimethyl acetate, ammonium dodecyl dimethyl hexanoate, ammonium hexadecyl dimethyl acetate and ammonium hexadecyl dimethyl hexanoate. Polymeric material
[0093] For use in the present invention, the term "low molecular weight" polymer refers to a polymer that has an average numerical molecular weight (Mn) of about 100,000 or less as measured by gel permeation chromatography (GPC ) calibrated with a standard poly (methyl methacrylate (PMMA). In certain preferred embodiments, low molecular weight polymers are those having molecular weight ranges from about 5,000 to about 80,000 Mn, more preferably from about 10,000 to about 50,000 Mn, and more preferably between about 15,000 and 40,000 Mn.
[0094] The polymeric material useful in the composition of this invention is preferably a polymeric material suitable for anionic association and / or anionic amphoteric surfactant thereto and is preferably a non-crosslinked linear acrylic copolymer that mitigates the impaired dermal barrier injury , typically associated with surfactant systems without increasing viscosity construction. Non-crosslinked linear polymers are preferably of low molecular weight having an average numerical molecular weight of 100,000 or less, as measured by gel permeation chromatography (GPC) calibrated with a poly (methyl methacrylate) (PMMA) standard (as used in the present invention, unless otherwise specified, all average molecular weight (Mn) numbers refer to the molecular weight measured in such a way). In this way, the polymeric material functions as a copolymeric mitigant. The copolymeric mitigant is polymerized from at least two monomeric components. The first monomeric component is selected from one or more α, β-ethylenically unsaturated monomers containing at least one carboxylic acid group. This acid group can be derived from monoacids or diacids, anhydrides from dicarboxylic acids, monoesters from diacids, and salts thereof. The second monomeric component is hydrophobically modified (relative to the first monomeric component) and is selected from one or more non-acidic monomers ethylenically unsaturated α, β- containing a C1 to Cg alkyl group, including C1 to Cg alkyl esters of the acid ( met) linear and branched acrylic, linear and branched C1 to Cio carboxylic acid vinyl esters, and mixtures thereof. In one aspect of the invention, the second monomeric component is represented by the formula:
where R is hydrogen or methyl; X is -C (O) OR or -OC (O) R; R is linear or branched C 1 to C 6 alkyl; and R and hydrogen or linear or branched C1 to C9 alkyl. In another aspect of the invention, R1 and R2 is straight or branched C1 to C8 alkyl, and in a further aspect, R1 and R2 are straight or branched C2 to C5 alkyl.
[0095] The first exemplary monomeric components include (meth) acrylic acid, itaconic acid, citraconic acid, maleic acid, fumaric acid, crotonic acid, aconitic acid, and mixtures thereof. Exemplary second monomeric components include (meth) ethyl acrylate, (meth) butyl acrylate, (meth) 2-ethyl hexyl acrylate, vinyl format, vinyl acetate, 1-methyl vinyl acetate, vinyl propionate, butyrate vinyl, vinyl 2-ethyl hexanoate, vinyl pivalate, vinyl neodecanoate, and mixtures thereof. For use herein, the terms "(meth) acrylic acid" and "(met) acrylate" are intended to include the corresponding methyl derivatives of acrylic acid and the corresponding alkyl acrylate. For example, "(meth) acrylic acid" refers to acrylic acid and / or methacrylic acid and "(met) acrylate" refers to alkyl acrylate and / or alkyl methacrylate.
[0096] More preferably, said first monomeric component is selected from the group consisting of (meth) acrylic acid and said second monomeric component is selected from the group consisting of at least one C1 to C9 alkyl (meth) acrylate.
[0097] The mitigants of the non-crosslinked linear acrylic copolymer of the invention can be synthesized by free radical polymerization techniques known in the art. In one aspect of the invention, the amount of the first monomer component relative to the second monomer component used ranges from about 20:80 to about 50:50 by weight, based on the total weight of all monomers in the polymerization medium. In another aspect the weight ratio of the first monomeric component to the second monomeric component is about 35:65, and in an additional aspect the weight ratio of the first monomeric component to the second monomeric component is about 25:75 all based on the total weight of all monomers in the polymerization medium.
[0098] In another aspect, emulsion polymerization techniques can be used to synthesize linear, non-crosslinked acrylic copolymer mitigants that can be useful in the invention. In a typical emulsion polymerization, a mixture of the presented monomers is added with stirring by mixing to a solution of the emulsifying surfactant, such as an anionic surfactant (for example, fatty alcohol sulfates or alkyl sulfonates), in an appropriate amount of water, in a suitable reactor, to prepare a monomeric emulsion. The emulsion is deoxygenated by any convenient method, such as by spraying with nitrogen, and then a polymerization reaction is initiated by the addition of a polymerization catalyst (initiator) such as sodium persulfate, or any other suitable addition polymerization catalyst, as is well known in the emulsion polymerization technique. The polymerization medium is stirred until the polymerization is complete, typically for a period of time in the range of about 4 to about 16 hours. The monomeric emulsion can be heated to a temperature in the range of about 70 to about 95 ° C before adding the initiator, if desired. An unreacted monomer can be eliminated by adding more catalyst, as is well known in the emulsion polymerization technique. The resulting polymeric emulsion product can then be unloaded from the reactor and packaged for storage or use. Optionally, the pH or other physical and chemical characteristics of the emulsion can be adjusted prior to discharge from the reactor. Typically, an emulsion of the product has a total solids content in the range of about 10 to about 50% by weight. Typically, the total polymer content (polymer solids) of the product emulsion is in the range of about 15 to about 45% by weight, in general, not more than about 35% by weight.
[0099] In one aspect, the average numerical molecular weight (Mn) of linear copolymeric mitigants that can be useful in the present invention as measured by gel permeation chromatography (GPC) calibrated with a poly (methyl methacrylate) (PMMA) standard ) is 100,000 or less. In another aspect of the invention, the molecular weight varies between about 5,000 and about 80,000 Mn, in an additional aspect between about 10,000 and 50,000 Mn, and in yet another aspect between about 15,000 and 40,000 Mn.
[0100] In one aspect of the invention, linear copolymeric mitigants have a viscosity of 500 mPa.s or less (Brookfield RVT, 20 rpm, spindle no. 1) at a concentration of polymeric solids of 5% by weight in deionized water and neutralized to pH 7 with 18% by weight NaOH solution. The viscosity can be in the range of about 1 to about 500 mPa.s, in another aspect, from about 10 to about 250 mPa.s, in another aspect, and from about 15 to about 150 mPa.s in yet another aspect.
[0101] Preferably, the low molecular weight non-crosslinked linear acrylic copolymer is a copolymer of potassium acrylates.
[0102] Any of the variety of non-ethoxylated anionic surfactants can be combined with a polymeric material of the present invention to form a cleaning composition, according to the preferred embodiments of the present invention. Non-ethoxylated anionic surfactants are surfactants that have a negative charge and do not contain any ethoxylated segments, in other words, there are no segments - (CCO) v in the surfactants. According to certain modalities, suitable non-ethoxylated anionic surfactants include those selected from the following classes of surfactants: alkyl sulfates, alkyl sulfonates, alkyl monoglyceride sulfonates, alkylaryl sulfonates, alkyl sulfosuccinates, alkyl sulfosuccinates, carboxylates alkyl, alkyl grease sulfoacetates, alkyl phosphates, acylglutamates, sarcosinates, taurates and mixtures of two or more of them. Examples of certain preferred anionic surfactants include: alkyl sulfates of the formula
alkyl monoglyceride sulfates of the formula
alkyl monoglyceride sulfonates of the formula
alkylaryl sulfonates of the formula
alkylaryl sulfonates of the formula
alkyl sulfosuccinates of the formula:
alkyl phosphates where R 'is an alkyl group having from about 7 to about 22, and preferably from about 7 to about 16 carbon atoms, R' 1 is an alkyl group from about 1 to about of 18, and preferably from about 8 to about 14 carbon atoms, R * 2 is a substituent of an I-amino acid, natural or synthetic X 'is selected from the group consisting of alkali metal ions, ions of alkaline earth metal, ammonium ions, and ammonium ions substituted with about 1 to about 3 substituents, each of the substituents can be the same or different and are selected from the group consisting of alkyl groups having from 1 to 4 carbon atoms and hydroxyalkyl groups having about 2 to about 4 carbon atoms and w is an integer from 0 to 20; and mixtures thereof.
[0103] According to certain modalities presented in US patent applications no. 12 / 822.329 and 12 / 976.573, the anionic surfactant of this invention is preferably a non-ethoxylated SOX anionic surfactant as per the structure below

[0104] Where SOs "is the anionic hydrophilic group, M + is a monovalent cation (such as NH4 +, Na +, K +, (HOCH2CH2) sN +, etc.), and R comprises any of a wide range of hydrophobic groups and optionally, a ) functional groups to link the hydrophilic and hydrophobic moieties and / or b) additional hydrophilic groups. Examples include: • Alkyl sulphonates, where R is equal to C6 - C20 alkyl, (linear or branched, saturated or unsaturated), preferably C11 - Ci8_, and most preferably Ci2 - Ci7. Specific examples include C17C17 Alkyl Sulfonate, C17C17 sodium sulfonate- (R = C13 - C17 alkyl, M + = Na +) and Ci4 alkyl sec-sulfonate sodium - (R = S-C13 alkyl - C17, M + = Na +) • Sulfonates of alpha olefins, where R is equal to a mixture of
where Ri = C4 - C16 alkyl or mixtures thereof, preferably C6-C12, more preferably C8Ci2, and most preferably Cio C12 • Specific examples include C12-14 sodium olefin sulfonate (Ri = C8 alkyl - Cio, M + = Na +) and C 14 -C16 sodium olefin sulfonate (R 1 = C 12 - C 12 alkyl, M + = Na +). ● Alkyl sulfate esters, where R1 = C6 - C20,
(linear or branched, saturated or unsaturated), preferably Ci2-Ci8, more preferably, Ci2-Ci6, and, most preferably, C12-C14. Specific examples include ammonium lauryl sulfate (Ri = lauryl, C12H25, M + = NH4 +), sodium lauryl sulfate (Ri = lauryl, C12H25, M + = Na +), and sodium cocosulfate (Ri = cocoalkyl, M + = Na +).
[0105] For use in the present invention, the term "amphoteric" means: 1) molecules that contain both acidic and basic sites, for example, an amino acid containing both amino (basic) and acidic (for example, carboxylic acid, acid) of functional groups; or 2) zwitterionic molecules that have both positive and negative charges within the same molecule. The charges of the latter can be dependent on or independent of the pH of the composition. Examples of zwitterionic materials include, but are not limited to, alkyl betaines and amidoalkyl betaines as shown above and below. Amphoteric surfactants are present in the present invention without a contrion. The skilled person will readily recognize that under the pH conditions of the compositions of the present invention, amphoteric surfactants are electrically neutral in virtue of having balanced positive and negative charges, or they have contractions such as alkali, alkaline earth metals, or against ions of ammonium.
[0106] Examples of amphoteric surfactants suitable for use in the present invention include, but are not limited to, amphocarboxylates such as (mono or di) alkylaminoacetates; alkyl betaines; amidoalkyl betaines; alkyl sultains; amidoalkyl sultainas; amphophosphates; phosphorylated imidazolines, such as phosphobetaines and pyrophosphobetaines; carboxy alkyl alkyl polyamines; alkylimino dipropionates; alkylamphoglycinates (mono or di); alkylamphoproprionates (mono or di),); N-alkyl β-aminoproprionic acids; polyaminoalkyl carboxylates; and mixtures thereof.
[0107] Examples of suitable amphocarboxylated compounds include those of the formula:
A being an alkyl or alkenyl group having from about 7 to about 21, for example, from about 10 to about 16 carbon atoms; x is an integer from about 2 to about 6; R5 It is hydrogen or a carboxyalkyl group containing from about 2 to about 3 carbon atoms; R6 is a hydroxyalkyl group containing from about 2 to about 3 carbon atoms or is a group of the formula:
wherein R8 is an alkylene group having from about 2 to about 3 carbon atoms and n is 1 or 2; and R7 is a carboxyalkyl group containing from about 2 to about 3 carbon atoms;
[0108] Examples of suitable aquila betaines include those compounds of the formula:
B being an alkyl or alkenyl group having from about 8 to about 22, for example from about 8 to about 16 carbon atoms; Rg and Rio are each, independently, an alkyl or hydroxy alkyl group having from about 1 to about 4 carbon atoms; ep is 1 or 2.
[0109] A preferred betaine for use in the present invention is lauryl betaine, commercially available from Albright & Wilson, Ltd. of West Midlands, United Kingdom as "Empigen BB / J."
[0110] Examples of suitable amidoalkyl betaines include those compounds of the formula:
D being an alkyl or alkenyl group having from about 7 to about 21, for example from about 7 to about 15 carbon atoms; Rn and R12 are each, independently an alkyl or
[0111] The hydroxy alkyl group having from about 1 to about 4 carbon atoms; q is an integer from about 2 to about 6; and m is 1 or 2.
[0112] An amidoalkyl is cocamidopropyl betaine, commercially available from the Goldschmidt Chemical Corporation of Hopewell, Virginia, USA, under the trade name, "Tegobetaine L7."
[0113] Examples of suitable amidoalkyl sultaines include those compounds of the formula
where E is an alkyl or alkenyl group having from about 7 to about 21, for example from about 7 to about 15 carbon atoms; R14 and Ris are each, independently, an alkyl, or a hydroxy alkyl group that has from about 1 to about 4 carbon atoms; r is an integer from about 2 to about 6; and R13 is an alkylene or hydroxyalkylene group having from about 2 to about 3 carbon atoms;
[0114] In one embodiment, amidoalkyl sultaine is cocamidopropyl hydroxy sultaine, commercially available from Rhone-Poulenc Inc. of Cranbury, New Jersey, USA, under the trade name, "Mirataine CBS.
[0115] Examples of amphosphosphate compounds include those of the formula:
where G is an alkyl or alkenyl group having about 7 to about 21, for example, about 7 to about 15 carbon atoms; s is an integer from about 2 to about 6; R16 is hydrogen or a carboxyalkyl group containing from about 2 to about 3 carbon atoms; R17 is a hydroxalkyl group containing from about 2 to about 3 carbon atoms or a group of the formula:
wherein R19 is an alkylene or alkylene hydroxy having from about 2 to about 3 carbon atoms and t is 1 or 2; and Ris is an alkylene or alkylene hydroxy group having from about 2 to about 3 carbon atoms.
[0116] In one embodiment, the amphophosphate compounds are lauroanfo PG-sodium acetate phosphate, commercially available from Mona Industries of Paterson, New Jersey, USA, under the trade name, "Monateric 1023," and those disclosed in US Patent 4,380 .637, which is incorporated herein by reference.
[0117] Examples of suitable phosphobetaines include those compounds of the formula:
where E, r, Ri, R2 and R3 are as defined above. In one embodiment, the phosphobetaine compounds are those presented in US patents No. 4,215,064, 4,617,414, and 4,233,192, all of which are incorporated herein by reference.
[0118] Examples of pyrophosphobetains include the compounds of the formula:
where E, r, Ri, R2 and R3 are as defined above. In one embodiment, the pyrophosphobetaine compounds are those disclosed in US Patent Nos. 4,382,036, 4,372,869, and 4,617,414, all of which are incorporated herein by reference.
[0119] Examples of suitable carboxyalkyl alkylpolyamines include those of the formula:
where I is an alkyl or alkenyl group containing from about 8 to about 22, for example from about 8 to about 16 carbon atoms; R22 is an alkyl carboxy group having from about 2 to about 3 carbon atoms; R2I is an alkylene group having from about 2 to about 3 carbon atoms and I is an integer from about 1 to about 4.
[0120] The cleaning compositions produced, as well as any of the compositions containing polymeric material and a surfactant component that has at least one anionic, non-ethoxylated surfactant and at least one amphoteric surfactant that are combined in the combination step, according to the methods of this invention may, furthermore, contain any of a variety of other components not exclusively including additives that enhance the appearance, tactile sensation and fragrance of the compositions, such as dyes, fragrances, preservatives, pH adjusting agents and the like.
[0121] Any of the varieties of non-ionic surfactants are suitable for use in the compositions of this invention, keeping in mind that the total surfactant load should not exceed about 14%, by weight, of the compositions presented here. Examples of suitable non-ionic surfactants include, but are not limited to, fatty alcohol acid or amide ethoxylates, monoglyceride ethoxylates, sorbitan ester ethoxylates, alkyl polyglycosides, polyglyceryl esters, mixtures thereof, and the like. Certain preferred non-ionic surfactants include alkyl polyglycosides, for example, but not limited to cocoglycoside and decylglycoside and polyglyceryl esters, for example, but not limited to polyglyceryl-10 laurate and polyglyceryl-10 oleate.
[0122] Any of a variety of secondary conditioners available, such as volatile silicones that give additional attributes, such as shine to hair, are suitable for use in this invention. In one embodiment, the volatile silicone conditioning agent has a boiling point with an atmospheric pressure of less than 220 ° C. The volatile silicone conditioner can be present in an amount of about 0 percent to about 3 percent, for example, from about 0.25 percent to about 2.5 percent, or about 0, 5 to about 1 percent, based on the weight of the composition as a whole. Examples of suitable volatile silicones include, but are not limited to, polydimethyl siloxane, polydimethyl cyclosiloxane, hexamethyl disiloxane, cyclomethicone fluids such as the polydimethylcyclo siloxane commercially available from Dow Corning Corporation of Midland, Michigan, USA, under the trade name "DC -345 "and mixtures thereof, and preferably include cyclomethicone fluids.
[0123] Any of the commercially available varieties of humectants, which are capable of providing moisturizing and conditioning properties for the personal hygiene composition, are suitable for use in the present invention. The humectant can be present in an amount from about 0 percent to about 10 percent, for example, from about 0.5 percent to about 5 percent, or from about 0.5 percent to about 3 percent, based on the total weight of the composition. Examples of suitable humectants include: 1) water-soluble liquid polyols selected from the group consisting of glycerin, propylene glycol, hexylene glycol, butylene glycols, dipropylene glycol, and mixtures thereof; 2) poly (alkylene glycol) of the formula: HO- (R "O) bH, where R" is an alkylene group having from about 2 to about 3 carbon atoms and b is an integer equal to about 2 at about 10; 3) polyethylene glycol methyl glucose ether of the Formula CH3-CeHioOs- (OCH2CH2) C-OH, where c is an integer from about 5 to about 25; 4) urea; and 5) mixtures thereof, with glycerin being the preferred humectant.
[0124] Examples of suitable chelating agents include those that are capable of protecting and preserving the compositions of this invention. Preferably, the chelating agent is ethylenediamine tetracetic acid ("EDTA”), and most preferably it is tetrasodium EDTA, available commercially from the Dow Chemical Company of Midland, Michigan, USA, under the trade name "Versene 100XL" and it is present in an amount, based on the total weight of the composition, from about 0 to about 0.5 percent or from about 0.05 percent to about 0.25 percent.
[0125] Suitable preservatives which include organic acid preservatives may include benzoic acid and ammonium and alkali metal salts thereof (eg sodium benzoate), sorbic acid and alkali metal and ammonium salts thereof (eg potassium sorbate) ), p-Anisic acid and alkali metal and ammonium salts thereof, and salicylic acid and alkali metal and ammonium salts thereof. The pH of the composition can be adjusted to the appropriate acid value using any cosmetically acceptable organic or inorganic acid, such as citric acid, acetic acid, glycolic acid, lactic acid, malic acid, tartaric acid or hydrochloric acid.
[0126] In one embodiment of the composition, sodium benzoate is present in the composition in an amount, based on the total weight of the composition, from about 0 to about 0.5 percent. In another embodiment, potassium sorbate is present in the composition in an amount, based on the total weight of the composition, from about 0 to about 0.6 percent, more preferably from about 0.3 to about 0, 5 percent.
[0127] The methods of the present invention may further comprise any of a variety of steps for mixing or introducing one or more of the optional components described earlier in this document with or in a composition comprising a polymeric material before, after, or simultaneously with the combination step described above. Although in certain modalities the order of mixing is not of critical importance, in other modalities it is preferable to pre-mix certain components, such as fragrance and non-ionic surfactant, before adding them to a composition comprising a polymeric material and / or a surfactant anionic.
[0128] The cleaning methods of the present invention may also include any of a variety of additional and optional steps conventionally associated with cleaning the skin and hair including, for example, the foaming and rinsing steps, and the like.
[0129] The aforementioned information regarding hydrophobically modified low molecular weight polymers, as well as the compositions that may be useful in the methods of the present invention are presented in US 7,803,403, US2006 / 0257348, and US20070111910, all of which being incorporated herein by way of reference.
[0130] The methods and compositions of this invention, presented here by way of illustration, can be practiced in the absence of any component, ingredient, or step that is not explicitly presented here. Several examples are demonstrated below to further illustrate the nature of the invention and the way to carry it out. However, the invention should not be considered to be limited to the details shown.
[0131] Topical compositions useful in the compositions of this invention can preferably be formulated as solutions. The solutions typically include an aqueous solvent (for example, from about 50% to about 99.99% or from about 90% to about 99% of a cosmetically suitable aqueous solvent).
[0132] Topical compositions useful in the present invention can be formulated as a solution comprising an emollient. Such compositions preferably contain from about 2% to about 50% by weight of an emollient (s). As used here, the term "emollients" refers to materials used to prevent or relieve dryness, as well as to protect the skin. A wide variety of suitable emollients are known and can be used in the present invention. Sagarin, Cosmetics, Science and Technology, 2nd Edition, Volume 1, pages 32 to 43 (1972) and the International Cosmetic Ingredient Dictionary and Handbook, Wenninger and McEwen, pp. 1656-61, 1626, and 1654-55 (The Cosmetic, Toiletry, and Fragrance Assoc., Washington, D.C., 7th Edition, 1997) (later in this document "ICI Handbook") contain numerous examples of suitable materials.
[0133] Preferably, the rinse compositions of the present invention contain from about 1% to about 20% by weight (e.g., from about 5% to about 10%) of an emollient (s) and about from 50% to about 90% (for example, from about 60% to about 80%) of water. Topical compositions useful in the present invention can be formulated as a solution containing an emulsifier. Such compositions preferably contain from about 0.1% to about 1% by weight of an emulsifier. Emulsifiers can be non-ionic, anionic or cationic. Suitable emulsifiers are disclosed, for example, in U.S. Patent No. 3,755,560, U.S. Patent No. 4,421,769, McCutcheon's Detergents and Emulsifiers, United States Edition, pp. 317- 324 (1986), and in the ICI Handbook, pp.1673-1686.
[0134] Another type of product that can be formulated from a solution is a creamy cleansing cream. A creamy cleansing cream preferably contains about 5% to about 50% by weight (for example, about 10% to about 20%) of an emollient (s) and about 45% to about 85% by weight (for example, from about 50% to about 75%) of water. Topical compositions useful in the present invention are formulated as emulsions. If the vehicle is an emulsion, from about 1% to about 10% by weight (e.g., from about 2% to about 5%) of the vehicle comprises one or more emulsifiers. Emulsifiers can be non-ionic, anionic or cationic. Suitable emulsifiers are disclosed, for example, in U.S. Patent No. 3,755,560, U.S. Patent No. 4,421,769, McCutcheon's Detergents and Emulsifiers, United States Edition, pp. 317-324 (1986), and in the ICI Handbook, pp.1673-1686.
[0135] [00134] The compositions of this invention preferably contain linear cellulose particles and linear amphiphilic cellulose particles in a ratio of about 1:10 to about 10: 1. More preferably, they should be present in an amount of about 1: 9 to about 9: 1. Most preferably, the amount of amphiphilic linear cellulose particles should be present in an amount of about 10% by weight of the total sum of amphiphilic linear cellulose particles and linear cellulose particles. Methods for cleaning and conditioning skin or hair
[0136] The methods of the present invention also concern methods of cleaning and conditioning the skin or hair with a personal cleanser of the present invention. These methods include the steps of moistening a substantially dry, disposable, single-use personal cleanser with water, comprising a water-insoluble substrate, a foaming surfactant, and a conditioning component, and placing it in contact with the skin. or the hair is said wet product. In additional embodiments, the methods and compositions of the present invention are also useful for delivering various active ingredients to the skin or hair.
[0137] The compositions of the present invention can be substantially dry, and can be moistened with water before use. The product can be moistened by immersion in a container filled with water or by placing it under a stream of water. The foam can be generated from the product by mechanical agitation and / or deformation of the product, before or during the contact of the product with the skin or hair. The resulting foam is useful for cleaning and conditioning skin or hair. During the process of cleaning and subsequent washing with water, conditioning agents and active ingredients are deposited on the skin or hair. The deposition of conditioning agents and active ingredients is intensified by the physical contact of the substrate with the skin or hair.
[0138] The invention will be further described with reference to the following examples in order to further illustrate the present invention and its advantages. These examples are not intended to be limiting, but illustrative.
[0139] The compounds are indicated, depending on the case, as their name CTFA or their chemical name, and the percentages are given on a weight basis, unless otherwise stated. Example 1: Characterization of hydrophobic and hydrophilic linear cellulose particles
[0140] The hydrophobic cotton particles and hydrophilic cotton particles listed in Table 1 below have been characterized as follows: Materials: Table 1
Example IA; Particle size measurement
[0141] The particle size of the cellulose materials was determined by the Mie / Fraunhofer Laser Dispersion Method using a Malvern 2000S Hydro Particle Size Analyzer using the following procedure: 1. The cell and lens windows are ensured clean and free of scratches. 2. Discarded in the toilet (using deionized water) and the accessory was drained at least 2 times, in order to eliminate any contamination from the previous samples. 3. The pump / agitator was turned off and the ultrasound was turned on for 30 seconds to allow air bubbles to dissipate. 4. The dispersion unit was filled with DI water. The pump / agitator speed was set to 2100 rpm, and then the pump was turned off for about 3 seconds to allow air to dissipate. Then the pump was slowly turned back on at 2100 rpm. Water was placed in the dispersion unit to replace the displaced air volume. 5. 4 drops of 5% IGEPAL CA 630 (non-ionic detergent) were added to the tank and dispersion was allowed before measuring the experiment. If this concentration causes the formation of bubbles, the unit is cleaned and the procedure is repeated using 2 drops of surfactant. To ensure that the experiment, give a clean value. Follow rule 2-150 and 20-20 (First two detectors must have light intensity less than 150 units and detector number 20 must have light intensity less than 20 units). 6. When the system is clean, add the diluted sample to be measured in the dispersion unit in an amount of about 2 mg in 10 grams of water. 7. When the obscuration caused by the particles in the sample is 2 to 5%, start the measurement. Note that D50 and D90 are in microns. (D50 refers to 50% of the particles that are less than the value; D90 refers to 50% of the particles that are less than the value) 8. The experiment was repeated three times and the average of the three results was recorded as the final value.
[0142] The average particle size of several cellulose particles described in Table 1 was determined and shown in Table 2. Table 2
ExampleIB: Contact angle
[0143] The contact angles of the various cellulose particles described in Table 1 were determined as follows:
[0144] 40 grams of cotton and citrus particles shown in Table 1 were placed on a rack for particle samples; the surface was compressed with constant force to create a smooth and compact surface of the particles. A 500 pl micro-syringe was filled with the test liquid (water), a 0.52 mm needle was used to distribute and deposit 5 ul droplets on the surface. The droplet contact angles in each of the cotton and citrus particle samples were measured and calculated with the OCA 20 Video-based DataPhysics optical contact angle measurement system with SCA20 software from three replicate tests on each sample, the results are shown in Table 3. Table 3
• represents the standard deviation
[0145] As shown in Table 3, citrus particles and hydrophobic cotton particles exhibited a greater water contact angle compared to Hydrophilic Cotton Particles. The citrus particles also exhibited a particle interaction overcoming water droplets. Example 1C; Infrared spectra:
[0146] Infrared spectrum analysis was performed on three cotton particles as follows:
[0147] The solvent extraction of the cotton materials, using methylene chloride was carried out and followed by the IR analysis of the evaporated residues and presented in Figures 1 and 2 here.
[0148] The spectra (shown in Figures 1 and 2) showed the residue extract from two hydrophobic linear cotton particles (# 2 and # 1) along with a dimethicone reference spectrum.
[0149] The solvent extractions of the two hydrophobic cotton materials (IFC and Goonvean) showed a significant amount of the waxy semi-solid residue and relatively little from the hydrophilic cotton materials. This waxy semi-solid waste coating is believed to be responsible for the hydrophobic nature of these two hydrophobic cotton particles.
[0150] The infrared analysis of the hydrophobic cotton residues # 2 and # 1 showed them both containing silicone (dimethicone or related polymer) together with other components. Residue # 2 includes a long-chain hydrocarbon wax-like material (as indicated by split peaks around 1375 and 725 cm-1) while residue # 1 includes an ester component (as indicated by IV peaks in around 1735 and 1250 cm-1).
[0151] The Hydrophilic Cotton Particles (Virgin Cotton Flock) showed negligible extractable residue. The morphology of this material was significantly different from the other two materials, indicating a higher degree of processing, greatly reducing the cotton particle to a fine powder material. The hydrophilic nature of this material is probably due to the inherent absorbent properties of cotton, and the lack of a repellent finish treatment.
[0152] In addition, the infrared analysis showed that all three cotton materials are typical "cellulosic materials". The characterization of the three different cotton materials showed the hydrophobic residue (# 2 and # 1) being composed of a hydrophobic treatment based on silicone. In contrast, hydrophilic cotton has no silicone-based hydrophobic repellent treatment. Example 2: Specific surface area
[0153] Reverse Gas Chromatography (IGC) has been reported in several articles as a good method for determining isotherms at finite concentration and ambient temperatures, using organic probe molecules. (Thielmann, F., Burnett, DJ and Heng, JYY (2007) Determination of the surface energy distributions of different processed lactose. Drug Dev. Ind. Pharm, 33, 1240 - 1253. And see also Yla— Maihaniemi, PP et al (2008) Inverse gas chromatographic method for measuring the dispersive surface energy distribution for particulates. Langmuir, 24, p. 9551-9557.
[0154] The specific surface area was determined with CIG using octane measuring the octane adsorption isotherms at 30 ° C and 0% relative humidity. The results of these determinations are shown in Table 4. "BET" is a measurement of the specific surface area known to those skilled in the art. Table 4 Particular surface areas of the particles (BET / IGC)
Example 3: Absorption and retention capacity
[0155] The absorption capacity of olive oil by the dried cotton particles in Table 1 was measured under normal conditions (ie, pressure and room temperature). Saturated particles were also subjected to centrifugal force to measure the holding power.
[0156] When a porous medium containing liquid is subjected to force, the liquid is evacuated gradually from the large pores, then from the smaller pores as the pressure increases. Medium containing a high pore volume distribution of smaller pores (or effective pores) can retain more liquid under greater restriction and this holding power can be a useful resource when the medium's desired role is to retain a liquid (sponge effect) ).
[0157] In order to evaluate the particle retention power, the particle / super-saturated oil combinations were subjected to a centrifugal force (8000 rpm, 300 seconds) and the remaining oil was measured. The results of this measurement are shown in Table 5.
[0158] After acceleration, the remaining oil can be expressed as a proportion of the amount of saturation oil (= mass of oil remaining / mass of oil initially in the mixture) or else the amount of oil remaining can be expressed as a fraction mass of the particle / oil mixture (= mass of oil remaining / mass of the powder / oil complex). Both calculations can provide different perspectives and are expressed in the following table. Table 5 Absorption and retention capacity of glyceryl trioleate (olive oil) in cotton particles.

[0159] Two Hydrophobic Linear Cotton Particles (# 1 and # 2) demonstrated very high oil absorption, in the slightly compressed, dry state. In addition, Hydrophobic Linear Cotton Particles (# 1) retained in a high amount of triglycerides even under applied acceleration (and retaining more than Hydrophilic Cotton Particles and Amphiphilic Citrine Particles had been initially absorbed).
[0160] Although Amphiphilic Citrine Particles retained more than they had absorbed (due to the high specific surface area, higher density created a large number of small interstitial spaces), they were prevented by less initial absorption, which it is probably a consequence of the smaller volume available in the particle's free space. Example 4: Oil absorption speed
[0161] The speed of oil absorption by a material can be determined by procedures as follows:
[0162] A model of a 6x4 cm rectangle was cut from 0.25 mm thick paper. With a 4x2 cm rectangular window cut in half with 1 cm of paper around the edge of the window. A glass microscope slide was weighed and its mass was recorded. The mold was placed on the slide and test material dispensed in the mold window. The material was spread over the entire window with a metal spatula to create a uniform rectangular layer with a mass of ~ 0.24 g (± 0.01 g). The mold was carefully removed, the edges of the slide removed with a spatula or gloved fingertip as needed, and the mass of the slide + material was recorded. The slide (with a layer of oil-absorbing particles) was placed flat in an incubator at 32 ° C. 0.0858 g of the tallow component of interest was dispensed via the 0-100 pL pipette (liquids) to the slide on one side and in contact with the particle layer. (For squalene, 100 pL was used; for triolein, 94.3 pL was used based on the densities declared by the suppliers). The slide was left to stand in the incubator for 15 seconds for the follow-up test), with a timer started as soon as the drop was dispensed. After 15 seconds, the slide was removed from the incubator and any unabsorbed tallow component was carefully wiped off the slide using a Kimwipe. The slide was weighed to determine the amount of sebum component absorbed by the powder during the absorbance period. The above steps were repeated for each slide, with each tallow / powder component combination tested at least in triplicate. The ratios were calculated to show the mass of the tallow component absorbed by mass of oil-absorbing powder within 15 seconds. The results of this determination are shown in Figure 3 here.
[0163] Figure 3 demonstrates that cotton powder (hydrophobic cotton powder # 1) absorbs both squalene and triglycerides much faster than virgin cotton powder. Example 5: Water absorption speed
[0164] The water absorption rate of the materials was determined by the procedure described as follows:
[0165] A gravimetric absorption test (GAT) method was used to determine the water absorption kinetics of hydrophobic cotton powder versus hydrophilic cotton powder. The cotton powder sample was loaded into a small cylindrical container, and the water was introduced in contact with the cotton powder through a water reservoir on a scale, the weight change of water resulting from the water transfer by absorption by the cotton powder was recorded electronically by a computer over the duration of the study. The absorption rate was calculated and plotted for different cotton powder samples.
[0166] As shown in Figure 4, the hydrophobic cotton powder had a slower water absorption rate than the hydrophilic cotton powder. Example 6: Water absorption capacity and oil absorption capacity
[0167] The water-absorbing and oil-absorbing capacity of materials can be determined by the following procedures set out below in Examples 6A and 6B.
[0168] Each experiment was repeated in triplicate for Hydrophobic Cotton Particles # 1, hydrophilic cotton powder (# 1) and Hydrophobic Cotton Particles # 2. Example 6A: Measurement of hydrophobicity and oil absorption.
[0169] The scale was tared with the dust samples. Squalene was then added dropwise via a disposable pipette until the sample appeared almost saturated. A metal spatula was used to thoroughly mix the oil with the powders until saturation (After mixing, the spatula was wiped clean against the side of the weight boat to ensure that there was no material loss). "Saturation", as used here, is defined as the mixture that is capable of containing all the squalene available in such a way that the bottom of the boat appears dry. This determination was based on the appearance of the mixture and the condition of the weight boat. The total number of grams of squalene was recorded and the relative Oil Absorption ratio was calculated by dividing the total weight of oil by the total weight of cotton materials. The results of performing this procedure are shown in Figure 5 of this document. Example 6B: Measurement of water absorption
[0170] Following a method similar to that described in Example 6A, but replacing water with oil material, water absorption was measured. The results of this test are shown in Figure 6. Example 7: Oil retention
[0171] Oil retention was determined using the following procedure:
[0172] A test site was marked with a 2 cm diameter circle on a white oil-proof card. About 6.2 mg of artificial tallow were applied uniformly within the marked circle to create an oily plaster with a reading by tallow meter equipment recorded as a pretreatment tallow reading P. Weighed about 25 mg of the tallow. test sample and applied it evenly over the test site. Tallow was measured within each test with tallow-measuring equipment at the site and the readings of tallow-measuring equipment were recorded 10 minutes after product application. The procedure was repeated for two replicates for each test product and the average S was calculated to obtain the level of sebum with the application of the product.
[0173] In-vitro tallow absorption is calculated using the following equation:% Sebum Level Change = (SP) / P Where S = Pre-Treatment tallow meter equipment reading Table 6

[0174] Oil absorption in in-vitro studies was conducted in storage at initial (RT) room temperature (RT) and three months (22 ° C) for the non-rinse conditioners listed in the table below. The in-vitro tallow absorption test showed that the addition of hydrophobic cotton powder (# 1) at a level of 2% in Conditioner Formulation B without rinsing increased the in-vitro tallow absorption by 2x times versus Formulation A of Placebo rinse-free conditioner. Conditioner Formula B without 2% hydrophobic cotton powder rinse (# 1) has slightly higher sebum absorption, but not significantly different from in-vitro sebum absorption than Conditioner without rinsing with powder dust 2% hydrophilic cotton.
[0175] The compositions shown in Table 6 were prepared according to the following method: 1. Deionized water and hydroxyethyl cellulose were added in a mixing vessel and heated to 75 o-80 ° C. 2. In a separate container, the ingredients shown in Table 6, as part # 1 were added and heated to 75 ° -80 ° C until all ingredients are melted. 3. After all the ingredients in Part # 1 have been melted, the hydroxyethylcellulose solution was phased with Part # 1 and mixed until homogeneous. Cooling to below 40 ° C was then started. 3. At 60 ° -65 ° C the ingredients of Part # 2 were added one at a time to allow for a good mix and mixed until the batch was homogeneous. 4. At or below 40 ° C the ingredients in Part # 3 have been added. 5. In a separate container, sodium hydroxide and Dl water were pre-mixed and the batch pH adjusted to pH 4.0-4.5. 6. The ingredients were adjusted to 100% by weight by weight of the batch and the batch was homogenized for 1-5 minutes. 7. Cotton powder was added and the batch mixed until homogeneous.
[0176] The degree of sebum absorption resulting from the procedure mentioned above for each composition (Formulations A to C) is reflected in the graph shown in Figure 7 of this document. As shown therein, the hydrophobic cotton powder retained a significantly greater amount of oil (i.e., tallow) for hair conditioning compositions without rinsing than compositions containing hydrophilic cotton powder. Example 8: Compositions for Cleaning Table 7


[0177] The cleaning compositions of the present invention can be produced according to the following procedure: 1. Add water to a vessel and begin mixing. 2. Add copolymer of acrylates or cross polymer of acrylates / C10-30 alkyl acrylate or carbomer or xanthan gum to the container and mix until completely dispersed. 3. Neutralize the carbomer with sodium hydroxide. 4. Add Sodium Lauret Sulfate and / or Decila Glycoside and / or Laurila Glycoside and / or Ammonium Lauret Sulfate to the container. 5. Add Cocoamidopropyl betaine (pre-dispersed salicylic acid, if necessary, in cocoamidopropyl betaine) and / or Cocamide MEA and / or Gliceret-7 and / or PPG-2 Hydroxyethyl Cocamide and / or PEG-16 Soy Sterol and / or PEG-120 Methyl Glucose Dioleate to the container. 6. Add the PEG-80 Sorbitan Laurate and / or Cocamido Diammonium Chloride Phosphate propyl PG and / or C14-16 sodium Olefin sulfonate and / or disodium Lauroamanfodiacetate and / or Sodium Cocoyl-sarcosinate and / or PEG-120 Methyl Glucose Dioleate into the container and mix. 7. Add Glycol Stearate and / or Glycol Distearate and / or Lauret-4 and / or C12-15 Alkyl Lactate and mix the ingredients. θ- Add EDTA and Preservative to the container and mix. 9- Add polyethylene and fragrance and mix. 10- Adjust the pH of the formulation to the desired pH with the use of sodium hydroxide and / or citric acid. 11- Add hydrophobic cotton powder and / or hydrophilic cotton powder to the mixture. Example 9: Tallow absorption study using cleaning composition
[0178] A baseline reading of the amount of sebum was taken from selected skin test sites on the skin surface of nine individuals (three points- opposite ends and in the middle of the forehead) before wetting the skin with running tap water. The amount of tallow was measured using tallow measuring equipment. 0.5 cc of gel cleansing cream (placebo) was applied to the skin, then the skin was massaged for ten seconds. Water was added to the skin and the skin was soaped for another twenty seconds. The cleansing cream was rinsed from the skin and any excess residue was removed with water for thirty seconds and then the stain was dried with a Kimwipe.
[0179] These steps were repeated with hydrophobic and hydrophilic cotton powders, as shown in Table 8 and the excess moisture was allowed to air dry for about five minutes.
[0180] After washing, taking two points spaced out for the placebo and the cotton prototype, tallow count was measured with a cartridge of tallow measuring equipment consecutively 4 hours and 6 hours after washing, respectively.
[0181] For greater precision, each sebum count should be performed on an area of fresh skin (that is, the same area cannot be measured more than once). Since tallow is measured by the tallow meter equipment cartridge, the particular location will have been disrupted, so as to affect the accuracy of the tallow measurement as the tallow is produced over the day on the skin.
[0182] The results of sebum absorption measurements for Example 9A and 9B are shown in Figure 8 of this document (Example 9C was not tested in this example). As can be seen from the graph in Figure 8, the production of sebum from clean skin with the composition containing hydrophobic and hydrophilic cotton powders was delayed compared to that which was cleaned with a gel cleansing cream. Table 8

Example 10: Citrus-cotton combination compositions
[0183] Using the materials presented below, compositions containing cotton particles and citrus particles were produced according to the following procedure.
[0184] The citrus and cotton particles were mixed in ratios as specified in the following table and as specified below:

[0185] The citrus particles were placed in a tared weighing boat with the exact registered weight, followed by the cotton particles (IFC, Goonvean, and RON) according to each of the reasons above. The citrus particles and cotton particles were then thoroughly mixed with a metal spatula. Since the cotton particles were uniform with the Citrus Particulate, the scale was tared with the sample of mixed particles. Squalene was then added dropwise via a disposable pipette until the sample appeared almost saturated. A metallic spatula was used to completely mix the oil with the particles until saturation. After mixing, the spatula was cleaned against the side of the weight boat to ensure that there was no material loss. "Saturation", as used here, is defined as the mixture that is capable of containing all the squalene available in such a way that the bottom of the boat appears dry. This determination was based on the appearance of the mixture and the condition of the weight boat.
[0186] The total number of grams of squalene was recorded and the relative Oil Absorption ratio was calculated by dividing the total weight of oil by the total weight of the mixture of citrus particles / cotton particles. The results of these measurements are shown in Figures 9 to 13 of this document.
[0187] Following a method similar to that described above, the water absorption for the mixing particles was also measured. The results of these measurements are shown in Figures 14 to 17 of this document.
[0188] As shown in Figures 14 to 17, pure citrus particles exhibit superior water absorption, while pure cotton particles exhibit excellent oil absorption properties. Surprisingly and unexpectedly, the combination of citrus and cotton particles both show excellent water-absorbing and oil-absorbing properties.

权利要求:
Claims (17)
[0001]
1. Composition for skin treatment, characterized by the fact that it comprises: (a) regenerated hydrophobic linear cellulose particles having an average length of 1000 pm, a particle aspect ratio of 1000 to 2 and a thickness of 1 to 500 pm; (b) amphiphilic linear cellulose particles derived from sources selected from the group consisting of citrus pulp, sugar beet pulp, banana pulp, mango pulp, apple pulp, passion fruit pulp and tomato pulp, said cellulose particles amphiphilic linear having an average size of 1 to 1000 pm, a particle aspect ratio of 1000 to 2 and a thickness of 1 to 500 pm; and (c) a cosmetically acceptable vehicle; the ratio of said amphiphilic linear cellulose particles to said regenerated hydrophobic linear cellulose particles is from 1:10 to 10: 1.
[0002]
2. Skin treatment composition according to claim 1, characterized in that said composition also comprises at least one cleaning agent selected from the group consisting of a saponified fat and a surfactant.
[0003]
Composition for skin treatment according to claim 1, characterized in that said regenerated hydrophobic linear cellulose particles have an oil absorption and retention capacity of 150 to 500% by weight of oil / weight of particles.
[0004]
4. Skin treatment composition according to claim 3, characterized in that the said oil absorption and retention capacity of said regenerated hydrophobic linear cellulose particles is from 300 to 500% by weight of oil / weight of particles .
[0005]
5. Skin treatment composition, according to claim 1, characterized by the fact that the angle of contact with water of said regenerated hydrophobic linear cellulose particles is greater than 90 degrees.
[0006]
6. Composition for skin treatment, according to claim 5, characterized by the fact that said angle of contact with water of said regenerated hydrophobic linear cellulose particles is greater than 100 degrees.
[0007]
7. Composition for skin treatment, according to claim 6, characterized by the fact that said angle of contact with water of said regenerated hydrophobic linear cellulose particles is greater than 120 degrees.
[0008]
8. Skin treatment composition according to claim 1, characterized in that said regenerated hydrophobic linear cellulose particles are coated with a hydrophobic agent selected from the group consisting of metallic soap, organic wax, synthetic wax, fatty acids long-chain, esters of long-chain fatty acids, non-water-soluble polymers, water-insoluble fluoropolymers of high molecular weight, and polymerized siloxanes.
[0009]
9. Skin treatment composition according to claim 1, characterized in that said ratio of said regenerated hydrophobic linear cellulose particles to said amphiphilic linear cellulose particles is from 1: 1 to 4: 1,
[0010]
10. Skin treatment composition according to claim 1, characterized in that said ratio of said regenerated hydrophobic linear cellulose particles to said amphiphilic linear cellulose particles is from 1: 1 to 2: 1,
[0011]
11. Skin treatment composition according to claim 1, characterized in that the size of said regenerated hydrophobic linear cellulose particles is from 2 to 300 pm.
[0012]
12. Skin treatment composition according to claim 1, characterized in that said amphiphilic linear cellulose particles are derived from citrus pulp.
[0013]
13. Skin treatment composition according to claim 1, characterized in that said composition also comprises at least one emollient.
[0014]
Composition for skin treatment according to claim 1, characterized in that said composition comprises 1 to 20 weight percent of said regenerated hydrophobic linear cellulose particles.
[0015]
Composition for skin treatment according to claim 1, characterized in that said composition comprises 1 to 10 weight percent of said regenerated hydrophobic linear cellulose particles.
[0016]
16. Skin treatment composition according to claim 1, characterized in that said composition comprises 1 to 6 weight percent of said regenerated hydrophobic linear cellulose particles.
[0017]
17. Skin treatment composition according to claim 1, characterized in that said composition is a rinse cleaning product.

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法律状态:
2018-03-06| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2018-03-13| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2018-03-20| B06I| Publication of requirement cancelled [chapter 6.9 patent gazette]|Free format text: ANULADA A PUBLICACAO CODIGO 6.6.1 NA RPI NO 2462 DE 13/03/2018 POR TER SIDO INDEVIDA. |

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2019-06-11| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|

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2019-11-05| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|

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2020-04-07| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2020-09-15| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 06/11/2013, OBSERVADAS AS CONDICOES LEGAIS. |

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2021-08-31| B21F| Lapse acc. art. 78, item iv - on non-payment of the annual fees in time|Free format text: REFERENTE A 8A ANUIDADE. |

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2021-12-21| B24J| Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)|Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2643 DE 31-08-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |

优先权:

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申请号 | 申请日 | 专利标题

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US201261724646P| true| 2012-11-09|2012-11-09|

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US61/724,646|2012-11-09|

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US201313799467A| true| 2013-03-13|2013-03-13|

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US13/799,467|2013-03-13|

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US14/060,901|2013-10-23|

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US14/060,901|US9370478B2|2012-11-09|2013-10-23|Skin care compositions containing cotton and citrus-derived materials|

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PCT/US2013/068697|WO2014074583A1|2012-11-09|2013-11-06|Skin care compositions containing cotton and citrus-derived materials|

---