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    • 专利摘要:
    DETERGENT COMPOSITION FOR WASHING AND USE THEREOF. The present invention is directed to laundry compositions containing (a) surfactant, (b) a cationic polysaccharide polymer, and (c) a fabric softener silicone, wherein the weight ratio of silicone to cationic polysaccharide polymer is from 4.5:1 to 1.5:1.
    公开号:BR112015008917B1
    申请号:R112015008917-8
    申请日:2013-10-02
    公开日:2022-02-01
    发明作者:Martin Charles Crossman；Andrew Anthony Howard Barnes；Neil Stephen Burnham；Belinda Fay Dawson；Paula Rose Bernadette Gilfoyle；Atsuko Kawabata；Jane Catherine Jones
    申请人:Unilever Ip Holdings B.V.；
    IPC主号:
    专利说明:

    Field of Invention
    [0001] The present invention relates to a laundry composition. More particularly the present invention is directed to a fabric softener present in the laundry composition. Background of the Invention
    [0002] Textile materials, including clothing, have traditionally been cleaned with laundry detergents. After cleaning, fabrics can often feel rough. To avoid this, especially the roughness experienced after multiple wash cycles, technology has been developed to increase the softness of fabrics, including conditioning compositions added in the rinse and softening systems added to the detergent composition.
    [0003] Cationic fabric softening polymers and fabric softening silicones have been used to provide softness to fabrics from a laundry detergent composition.
    [0004] WO 2005/087907 describes liquid detergent compositions comprising surfactants, polydimethylsiloxane (a silicone softener) and polyquaternium 7 (a polymeric quaternary salt consisting of acrylamide and diallyl ammonium chloride monomers).
    [0005] However, there is a need to improve the softness benefit that is provided. There is a further need to provide detergent softening compositions that provide improved cleaning. Summary of the Invention
    [0006] In a first aspect, the present invention is directed to a laundry detergent composition comprising: (a) from 1 to 80% by weight of surfactant; (b) from 0.1 to 10% by weight of silicone softener of fabric; and (c) from 0.05 to 2.5% by weight of cationic polysaccharide polymer, with the weight ratio of silicone to cationic polysaccharide polymer ranging from 4.5:1 to 1.5:1.
    [0007] Preferably, the detergent composition is a liquid detergent composition.
    [0008] Preferably, the liquid detergent composition has a pH ranging from 6 to 10, more preferably a pH ranging from 6.5 to 9, for example from 6.5 to 8.5.
    [0009] A preferred level of the cationic polymer is from 0.1 to 2% by weight, more preferably from 0.1 to 1% by weight.
    [0010] Preferred cationic polysaccharide polymers are guar cationic polymer and cellulose cationic polymer. Particularly preferred is hydroxy ether cellulose which is modified by the incorporation of cationic groups (i.e. quaternized hydroxy ethyl cellulose).
    [0011] Preferably, the silicone is in the form of an emulsion.
    [0012] Preferably, the silicone is a polydimethylsiloxane.
    [0013] Preferably, the silicone is an amino-silicone.
    [0014] Preferably, the silicone is an anionic silicone.
    [0015] Preferably, the weight ratio of silicone to cationic polymer is from 4:1 to 2:1.
    [0016] Optionally, but preferably, the composition additionally comprises an ingredient selected from tint dye, enzyme, an anti-redeposition polymer, a dye transfer inhibitor polymer, anti-limescale agent, sequestering agent, sunscreen, and/or deionizing polymer. dirt release.
    [0017] In a second aspect, the present invention provides the use of a composition according to the first aspect of the invention to soften fabrics. Detailed Description of the Invention
    [0018] As used herein, the term "comprising" means including, made of, composed of, consisting and/or essentially consisting of.
    [0019] All percentages given are % by weight based on the total amount of laundry composition, unless otherwise stated.
    [0020] The present invention is directed to laundry compositions containing surfactant, a cationic polymer and a fabric softener silicone, with the weight ratio of silicone to cationic polymer ranging from 4.5:1 to 1.5: 1. The composition exhibits improved fabric softening. Form of the Invention
    [0021] The present invention can take any of a number of forms that are laundry compositions. Examples include powders, granules, bars, gels and liquids. Preferably, the composition is in the form of a liquid laundry product. Preferably, they are programmed washing products. It may take the form of a laundry composition for timed washing which may be diluted or undiluted. The laundry composition may, for example, be an isotropic liquid, or a surfactant structured liquid. Particularly preferred forms of the present invention include combination detergent/softener products to provide "softening in the wash".
    [0022] Preferably, the detergent composition has a pH ranging from 6 to 10, more preferably pH ranging from 6.5 to 9, for example pH 6.5 to 8.5. surfactants
    [0023] The detergent composition comprises surfactant.
    [0024] Preferably, the surfactant comprises non-ionic surfactant and anionic surfactant.
    [0025] The nonionic surfactant, if present, preferably comprises alcohol ethoxylate.
    [0026] Alcohol ethoxylates are formed from the reaction of primary or secondary alcohols with ethylene oxide. Typically, a linear or branched primary or secondary C8 to C18 aliphatic alcohol is reacted with ethylene oxide in the molar amount required to produce the alcohol ethoxylate. Preferred alcohol ethoxylates have from 2 to 40, preferably from 3 to 30, more preferably from 5 to 20 ethylene oxide units attached to the aliphatic chain.
    [0027] Surfactants can be chosen from surfactants described in "Surface Active Agents" Vol. 1, by Schwartz & Perry, Interscience 1949, Vol. 2 by Schwartz, Perry 15 & Berch, Interscience 1958, in current edition of "McCutcheon's Emulsifiers and Detergents" published by Manufacturing Confectioners Company or in "Tenside-Taschenbuch", H. Stache, 2nd Edition, Carl Hauser Verlag, 1981. Preferably, the surfactants used are saturated.
    [0028] Suitable nonionic detergent compounds that may be used include, in particular, the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids, amides or alkyl phenols with oxides of alkylene, especially ethylene oxide alone or with propylene oxide. Specific non-ionic detergent compounds are C6 to C22 alkyl phenol-ethylene oxide condensates, generally from 5 to 25 EO, i.e. from 5 to 25 ethylene oxide units per molecule, and the condensation products of aliphatic alcohols C8 to C18 primary or secondary, linear or branched with ethylene oxide, generally from 5 to 40 EO.
    [0029] Suitable anionic detergent compounds that may be used may be the water-soluble alkali metal salts of organic sulfates and sulfonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term alkyl being used to include the alkyl portion of higher acyl radicals. Examples of suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulfates, especially those obtained by sulfation of higher C8 to C18 alcohols, produced, for example, from tallow or coconut oil, C9 to C20 alkyl benzene sulfonates sodium and potassium, particularly C10 to C15 linear secondary alkyl sodium and potassium benzene sulfonates; and sodium alkyl glyceryl ether sulfates, especially those ethers of higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum. Anionic surfactants may also include C6-C22 fatty acid soaps. Preferred anionic detergent compounds are sodium C11 to C15 alkyl benzene sulfonates and sodium C12 to C18 alkyl sulfates. Sulfonate salts included as hydrotropes may additionally be considered as anionic surfactants as defined herein. Also applicable are surfactants such as those described in EP-A 328177 (Unilever), which show resistance to precipitation, the alkyl polyglycoside surfactants described in EP-A 070074, and monoglycosides.
    [0030] The total amount of surfactant present in the composition ranges from 1 to 80% by weight. The level of surfactant is preferably at least 6% by weight, more preferably at least 10% by weight. More preferably, the total amount of surfactant is from 15 to 65% by weight, preferably from 10 to 50% by weight.
    [0031] The non-ionic detergent is preferably present in amounts ranging from 2 to 40% by weight, preferably from 5 to 35% by weight, more preferably from 6 to 20% by weight.
    [0032] The anionic surfactant is preferably present in amounts ranging from 4 to 40% by weight, preferably from 5 to 35% by weight, more preferably from 6 to 20% by weight.
    [0033] Other surfactants such as amphoteric, zwitterionic and cationic surfactants may also be present, in addition to the aforementioned non-ionic and anionic surfactants. Fabric Softener Silicone
    [0034] The composition comprises silicone fabric softener at a level of from 0.1 to 10% by weight, preferably from 0.2 to 5% by weight, more preferably from 0.5 to 3% by weight.
    [0035] Fabric softener silicone can be, but is not limited to: (1) non-functionalized silicones, such as polydimethylsiloxane (PDMS) or alkyl(or alkoxy) functional silicones, (2) functionalized silicones or copolymers with one or more different kinds of functional groups such as amino, phenyl, polyether, acrylate, silicone hydride, carboxylic acid, quaternized nitrogen, etc. When the silicone is in the form of an emulsion, then preferably the particle size is in the range from about 1 nm to 100 microns and preferably from about 10 nm to about 10 microns, including microemulsions (< 150 nm), standard emulsions (about 200 nm to about 500 nm) and macroemulsions (about 1 micron to about 20 microns).
    [0036] Preferred silicones are selected from polydialkylsiloxanes, especially polydimethylsiloxane; amino functionalized silicones; and anionic silicones, especially carboxyl functionalized silicone.
    [0037] Preferably, the fabric softener silicone is a polydimethylsiloxane. Cationic polymer
    [0038] The composition comprises a cationic polysaccharide polymer at a level ranging from 0.05 to 2.5% by weight, preferably from 0.1 to 2% by weight, more preferably from 0.2 to 1% by weight .
    [0039] This term refers to polymers having an overall positive charge.
    [0040] More preferably, the cationic polymer of polysaccharide is a cationic polymer of guar or cationic polymer of cellulose. More preferably, the cationic polymer is a cationic polymer of cellulose, for example quaternized hydroxy ethyl cellulose. Polysaccharide Cationic Polymer
    [0041] The term "polysaccharide cationic polymer" refers to polymers having a polysaccharide backbone and an overall positive charge. Polysaccharides are polymers formed from monosaccharide monomers joined by glycosidic bonds.
    [0042] The cationic polysaccharide-based polymers present in the compositions of the invention have a modified polysaccharide backbone, which is modified by additional chemical groups that have reacted with some free hydroxyl groups of the polysaccharide backbone to give an overall positive charge. to the modified cellulosic monomer unit.
    [0043] A preferred class of cationic polysaccharide polymers suitable for the present invention are those having a polysaccharide backbone modified to incorporate a quaternary ammonium salt. Preferably, the quaternary ammonium salt is linked to the polysaccharide backbone via a hydroxyethyl or hydroxypropyl group. Preferably, the nitrogen charged quaternary ammonium salt has one or more alkyl substituent groups.
    [0044] Preferred polysaccharide-based cationic polymers have a guar-based or cellulose-based backbone. Guar is a galactomannan having a β-1,4 mannose backbone linked with α-1,6 branch points attached to galactose units.
    [0045] Suitable guar gum cationic derivatives such as hydroxypropyltriammonium guar chloride, specific examples of which include the Jaguar series commercially available from Rhone-Poulenc Incorporated and the N-Hance series commercially available from the Aqualon Division of Hercules, Inc.
    [0046] An example of a preferred guar-based cationic polymer is 2-hydroxy-3-(trimethylammonium)propyl guar ether salt.
    [0047] Cellulose is a polysaccharide with glucose as its monomer, specifically, it is a straight-chain polymer of D-glucopyranose units linked via β-1,4 glycosidic bonds and is an unbranched linear polymer.
    [0048] Examples of cationic cellulose polymers are the trimethyl ammonium substituted epoxide-reacted hydroxyethyl cellulose salts, referred to in the field under the International Nomenclature for Cosmetic Ingredients as Polyquaternium 10 and is commercially available from Amerchol Corporation, a subsidiary of The Dow Chemical Company, marketed as the Polymer LR, JR, and KG polymer series. Other suitable types of cationic celluloses include the polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted with substituted lauryl dimethyl ammonium epoxide, referred to in the field under the International Nomenclature for Cosmetic Ingredients as Polyquaternium 24. These materials are available from Amerchol Corporation marketed as Polymer LM-200.
    [0049] Examples of preferred cationic cellulose polymer types include cocodimethylammonium hydroxypropyl oxyethyl cellulose, lauryldimethylammonium hydroxypropyl oxyethyl cellulose, stearyldimethylammonium hydroxypropyl oxyethyl cellulose, and stearyldimethylammonium hydroxyethyl cellulose; cellulose propyl ether salt 2-hydroxyethyl 2-hydroxy 3-(trimethyl ammonium), polyquaternium-4, polyquaternium-10, polyquaternium-24 and polyquaternium-67 or mixtures thereof.
    [0050] But preferably, the cellulosic cationic polymer is a quaternized hydroxy ether cellulose cationic polymer. They are commonly known as polyquaternium-10. Commercial cellulosic cationic polymer products which are suitable for use in accordance with the present invention are marketed by Amerchol Corporation under the trade name UCARE.
    [0051] The counterion of the cationic polymer is freely chosen from the halides: chloride, bromide and iodide; or from hydroxide, phosphate, sulfate, hydrosulfate, ethyl sulfate, methyl sulfate, formate and acetate.
    [0052] Many of the aforementioned cationic polymers can be synthesized in, or are commercially available in, numerous different molecular weights. Preferably, the molecular weight of the cationic polymer is from 10,000 to 2,000,000 Daltons, more preferably from 10,000 to 1,000,000 Daltons, even more preferably from 100,000 to 1,000,000 Daltons. Optional Ingredients
    [0053] The detergent composition may optionally comprise one or more of the following optional ingredients: tint dye, enzyme, anti-redeposition polymer, dye transfer inhibitor polymer, anti-limescale agent, sequestering agent, sunscreen and/or dirt release. Anti-limescale and Sequestering Agents
    [0054] The detergent compositions may also optionally contain relatively low levels of organic detergent descaling agent or sequestering material. Examples include alkali metal, citrates, succinates, malonates, carboxymethyl succinates, carboxylates, polycarboxylates and polyacetyl carboxylates. Specific examples include the sodium, potassium and lithium salts of oxydisuccinic acid, mellitic acid, benzene polycarboxylic acids, ethylene diamine tetraacetic acid, diethylenetriaminopentaacetic acid, alkylor alkenylsuccinic acid, nitrilotriacetic acid, and citric acid. Other examples are DEQUEST™, organic phosphonate-type sequestering agents sold by Thermophos and alkanohydroxy phosphonates.
    [0055] Other suitable organic descaling agents include the high molecular weight polymers and copolymers known to have descaling agent properties. For example, such materials include polyacrylic acid, polymaleic acid, and appropriate polyacrylic/polymaleic acid copolymers and salts thereof, such as those sold by BASF under the name SOKALANTM. Another suitable descaling agent is sodium carbonate.
    [0056] If used, the descaling agent materials may comprise from about 0.5% to 20% by weight, preferably from 1% by weight to 10% by weight of the composition. The preferred level of descaling agent is less than 10% by weight and preferably less than 5% by weight of the composition.
    [0057] Preferably, the laundry detergent formulation is a laundry detergent formulation with a non-phosphate descaling agent, i.e., it contains less than 1% by weight of phosphate. Shade Dye
    [0058] Tone dyes are deposited on the fabric during the washing or rinsing step of the washing process, providing the fabric with a visible hue. The shade of white clothes can be made with any color depending on the consumer's preference. Blue and violet are particularly preferred hues and consequently preferred dyes or dye mixtures are those that impart a blue or violet hue to white garments. The tint dyes used are preferably blue or violet.
    [0059] The tint dye chromophore is preferably selected from the group consisting of: mono-azo, bis-azo, triphenylmethane, triphenedioxazine, phthalocyanine, naphtholactam, azine and anthraquinone. Most preferably mono-azo, bis-azo, anine and anthraquinone.
    [0060] More preferably, the dye carries at least one sulfonate group.
    [0061] Preferred tint dyes are selected from direct dyes, acid dyes, hydrophobic dyes, cationic dyes and reactive dyes.
    [0062] If included, the tint dye is present in the composition in the range of 0.0001 to 0.01% by weight. Fluorescent Agent
    [0063] The composition preferably comprises a fluorescent agent (optical brightener). Fluorescent agents are well known and many such fluorescent agents are commercially available. Usually these fluorescing agents are supplied and used in the form of their alkali metal salts, for example sodium salts. The total amount of the fluorescing agent or agents used in the composition is generally from 0.005 to 2% by weight, more preferably from 0.01 to 0.1% by weight. Preferred classes of fluorescent are: Di-styryl biphenyl compounds, eg Tinopal (Trademark) CBS-X, Di-amino stilbene disulfonic acid compounds, eg Tinopal OMS pure Xtra and Blankophor (Trademark) HRH, and Pyrazoline compounds, e.g. Blankophor SN. Preferred fluorescents are: 2-(4-styryl-3-sulfophenyl)-2H-naphthol[1,2-d]trazole sodium, 4,4'-bis{[(4-anilino-6-(N-methyl-N -2 hydroxyethyl)amino 1,3,5-triazin-2-yl)]amino}stilbene-2-2' disodium disulfonate, 4,4'-bis{[(4-anilino-6-morpholino-1,3, 5-triazin-2-yl)]amino}stilbene-2-2' disodium disulfonate, and disodium 4,4'-bis(2-sulfoslyl)biphenyl. perfume
    [0064] Preferably, the composition comprises a perfume. The perfume preferably ranges from 0.001 to 3% by weight, with 0.1 to 1% by weight most preferred. Many suitable examples of perfumes are provided in the CTFA (Cosmetic, Toiletry and Fragrance Association) International Buyers Guide 1992, published by CFTA Publications and OPD 1993 Chemicals Buyers Directory 80th Annual Edition, published by Schnell Publishing Co.
    [0065] It is common for a plurality of perfume components to be present in a formulation. In the compositions of the present invention it is envisaged that there will be four or more, preferably five or more, more preferably six or more, or even seven or more different perfume components.
    [0066] In perfume blends, preferably, 15 to 25% by weight are top notes. The starting notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6(2):80 [1955]). Preferred top notes are selected from citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol.
    [0067] It is preferred that the laundry treatment composition does not contain any peroxide bleach, for example sodium percarbonate, sodium perborate and peracid. oligomers
    [0068] The composition may comprise one or more polymers. Polymers can aid in the cleaning process by helping to retain dirt in solution or suspension and/or preventing dye transfer. Polymers can also help with the dirt removal process. Dye transfer, anti-redeposition and dirt release polymers are described in more detail below.
    [0069] The composition may comprise one or more polymers. Examples are: carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, poly(ethylene glycol), poly(vinyl alcohol), ethoxylated polyamines, polycarboxylates such as polyacrylates, maleic acid/acrylic copolymers and lauryl methacrylate/acrylic acid copolymers. Dye Transfer
    [0070] Modern detergent compositions typically employ polymers as so-called “dye transfer inhibitors”. They prevent dye migration, especially during long immersion periods. In general, such dye transfer inhibiting agents include polyvinyl pyrrolidone polymers, polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, manganese phthalocyanine, peroxidases and mixtures thereof, and are usually present at a high level. which is from 0.01 to 10% by weight based on the total amount of the laundry composition. Anti-redeposition polymers
    [0071] Anti-redeposition polymers are designed to suspend or disperse dirt. Typically, the anti-redeposition polymers are ethoxylated and/or propoxylated polyethylene imines or polycarboxylate materials, e.g. acrylic acid based homo or copolymers, available under the tradename ACUSOL from Dow Chemical, Alcosperse from Akzonobel or Sokolan from BASF. Dirt Release Polymers
    [0072] Examples of suitable soil release polymers include poly(vinyl ester) graft copolymers, for example C1C6 vinyl esters, preferably poly(vinyl acetate) grafted onto polyalkylene oxide backbones. Commercially available soil release agents of this species include the SOKALAN material type, eg SOKALAN HP-22, available from BASF (Germany). Additional suitable dirt release polymers of a different type include the commercially available material ZELCON 5126 (from DuPont) and MILEASE T (from ICI). If present, soil release polymer may be included at a level from 0.01 to 10% by weight, based on the total amount in the laundry composition. Additional examples of dirt releasing polymers are terephthalic acid/glycol copolymers sold under the brand names Texcare, Repel-o-tex, Gerol, Merloquest, Cirrasol. hydrotrope
    [0073] If in the form of a liquid, then the liquid detergent composition may optionally include a hydrotrope, which may prevent liquid crystal formation. The addition of the hydrotrope thus aids in the clarity/transparency of the composition. Suitable hydrotropes include, but are not limited to, propylene glycol, ethanol, glycerol, urea, salts of benzene sulfonate, toluene sulfonate, xylene sulfonate or cumene sulfonate. Suitable salts include, but are not limited to, sodium, potassium, ammonium, monoethanolamine, triethanolamine. Sulfonate salts can also be considered as anionic surfactants as defined herein. Preferably, the hydrotrope is selected from the group consisting of propylene glycol, xylene sulfonate, ethanol and urea to provide optimal performance. The amount of the hydrotrope is generally in the range of 0 to 30%, preferably 0.5 to 30%, more preferably 0.5 to 30%, most preferred being 1 to 15%. enzymes
    [0074] Enzymes may also be present in the formulation. Preferred enzymes include protease, lipase, pectate lyase, amylase, cutinase, cellulase, mannanase. If present, the enzymes can be stabilized with a known enzyme stabilizer, for example boric acid. EXAMPLES
    [0075] Two control formulations “A” and “B”, which did not include the cationic polymer or a silicone were tested against formulations “C”, “D”, “E” and formulations 1 and 2, all with and silicone free (eg 1 and 1(Sil)). The formulations are listed in tables 1 and 2. Formulation Production Method
    [0076] Water and hydrotropes are mixed together at room temperature (approximately 22°C) for 2-3 minutes at a shear rate of 150 rpm, using a Janke & Kunkel IKA RW20 overhead mixer. The salts and alkalis are added and mixed for 5 minutes before the addition of surfactants and fatty acid. The mixture will show a slight exotherm at this point. After allowing to cool to < 30°C, the LR400 solution and any remaining components such as perfume, preservatives and dyes are added. Softening Experiment
    [0077] Twelve pieces of 20 cm x 20 cm terry cloth material along with 1.8 kg of poly cotton ballast fabric were added to a front loading automatic washing machine. 75 ml of formulation was dosed into a dosing container, followed by the required amount of silicone emulsion. The mixture was stirred for 2 minutes. The dosing container containing the formulation and the silicone was then added to the washing machine drum. The fabrics were then washed using the short cotton cycle at 40°C of a Miele automatic washing machine. After the cycle, the fabrics were dried in sequence. This process was repeated 5 times.
    1 Silicone was a carboxylic functional silicone supplied by Wacker Chemie, added as an emusion. 2 LR400 is a cationic polymer of hydroxyether cellulose (known as polyquaternium 10) available from Dow Chemical.
    1 Silicone was a carboxylic functional silicone supplied by Wacker Chemie, added as an emusion. 2 LR400 is a cationic polymer of hydroxyether cellulose (known as polyquaternium 10) available from Dow Chemical.
    [0078] The formulations were tested for softening, and the results are shown in table 3.
    [0079] Softening was measured using a Stable Micro Systems Texture Analyzer (TA) XT plus (Stable Micro Systems Texture Analyzer (TA) XT plus) with an optional friction module attached to the analyzer. The TA is an instrument incorporating a steering mechanism and a 5 kg load cell. The treated tissue was spread out on the instrument's horizontal test platform and a neoprene rubber cylindrical probe, which is attached to the load cell, was placed on the tissue surface. The texture analyzer is programmed to move the probe a distance of 40 mm back and forth over the tissue at a speed of 10 mm/s. As the probe moves, the software records the frictional force experienced by the probe. The average coefficient of friction over the course of the test is used as a measure of break-in.
    [0080] For formulations C, D, E, 1 and 2, the formulation without silicone (but with cationic polymer), i.e. "C" was measured in pairs with respect to the formulation including silicone, i.e. C(Sil) . The results for each pair were evaluated to see if there was a statistically significant improvement (at the 95% confidence level) for the silicone and cationic polymer formulation.


    [0081] As can be seen from the results in Table 3, only when the ratio of silicone to cationic polymer ranges from 4.5:1 to 1.5:1 does the inclusion of a fabric softening silicone provide a statistically significant benefit. significant compared to just the inclusion of the cationic polymer alone. Example 2
    [0082] Additional softening experiments were performed to verify that the effect of the silicone to cationic polymer ratio is consistent for other functional silicones. In this case, a PDMS and an amino silicone were used and the results are shown in Tables 4 and 5.

    1 Silicone 1 was PDMS 60,000 cSt supplied by Dow Corning as an emulsion.2 Silicone 2 was the amino silicone Arristan 64 supplied by CHT Beitlich as an emulsion3 LR400 is a cationic polymer of hydroxyether cellulose (known as polyquaternium 10) available from Dow Chemical.


    [0083] The results in Table 5 show that a statistically significant softening benefit (compared to controls) can be achieved only when the ratio of silicone to cationic polymer is from 4.5:1 to 1.5:1. Example 3
    [0084] The cleaning experiments that were performed showed that when the ratio of silicone to cationic polymer is from 4.5:1 to 1.5:1, cleaning is improved when compared to a ratio of silicone to cationic polymer less than 1.5:1 (ie 1:1 and 1:2). Example 4
    [0085] Comparative example of a cationic polysaccharide polymer versus polyquaternium 7 of WO 2005/087907.
    [0086] The silicone deposition of both cationic polymers was tested using identical formulations, varying only the cationic polymer used. The formulations were dosed to provide silicone at 0.5 g/wash and cationic polymer at 0.2 g/wash.
    [0087] The variables tested were: Control - formulation including 0.5 g/wash silicone Polysaccharide - formulation including 0.5 g/wash silicone + 0.2 g/wash cationic polysaccharide polymer (LR400)Polyquat 7 - formulation including 0.5g/silicone wash + 0.2g/cationic polymer wash (polyquaternium 7)
    [0088] The washes were performed on 2 different substrates, toweling material and repeated in white cotton mesh. The articles were washed 6 times, dried and then the friction after each wash was measured. The friction measurement results in an average friction coefficient. The friction test shows how soft the washed articles were, by the amount of silicone deposited that accumulates on the article and decreases friction. Friction Test Details
    [0089] The coefficient of friction was measured using a Stable Micro Systems Texture Analyzer, which is commercially available. The tissue article is placed on a platform and a rubber probe is placed on the tissue and moved at 10 mm/sec. The probe is moved forward 40 mm, then moved back 40 mm. The instrument records the friction force which is then converted into an average coefficient of friction over the motion in both directions. The data reported in the following tables show that the polysaccharide provides statistically significant improvement in reduced friction (hence increased silicone deposition) at 95% confidence levels.
    [0090]Table 6 - Silicone accumulated on toweling material
    Table 7 - Silicone accumulated on white cotton mesh


    [0091] Thus, it can be seen from the results of tables 6 and 7 that the cationic polysaccharide polymer provides superior silicone deposition compared to the prior art polyquaternium-7 described in WO 2005/087907.
    权利要求:
    Claims (10)
    [0001]
    1. Laundry detergent composition, comprising from 1 to 80% by weight of surfactant, wherein the surfactant comprises non-ionic and anionic surfactant, characterized in that the composition comprises: (a) from 0.1 to 10% by weight of silicone softener of fabric; (b) from 0.05 to 2.5% by weight of cationic polysaccharide polymer, wherein the weight ratio of silicone to cationic polysaccharide polymer ranges from 4.5:1 to 1.5:1.
    [0002]
    Composition according to claim 1, characterized in that it is a liquid detergent composition.
    [0003]
    Composition according to claim 2, characterized in that the liquid composition has a pH of 6 to 10, preferably pH of 6.5 to 9, and the most preferred pH of all being 6.5 to 8.
    [0004]
    Composition according to any one of the preceding claims, characterized in that the cationic polysaccharide polymer is present at a level ranging from 0.1 to 2% by weight, preferably from 0.1 to 1% by weight.
    [0005]
    Composition according to any one of the preceding claims, characterized in that the cationic polysaccharide polymer comprises guar cationic and/or cellulose cationic polymers.
    [0006]
    Composition according to claim 5, characterized in that the cationic polymer of polysaccharide is a cationic polymer of cellulose, preferably of quaternized hydroxy ethyl cellulose.
    [0007]
    Composition according to any one of the preceding claims, characterized in that the silicone is in the form of an emulsion.
    [0008]
    Composition according to any one of the preceding claims, characterized in that the silicone is polydimethylsiloxane.
    [0009]
    Composition according to any one of the preceding claims, characterized in that the silicone is an amino silicone.
    [0010]
    Composition according to any one of the preceding claims, characterized in that the silicone is an anionic functionalized silicone, preferably a carboxyl functionalized silicone.
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    CN104781381B|2018-02-23|
    ZA201502942B|2016-09-28|
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    法律状态:
    2018-01-23| B11A| Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing|
    2018-03-20| B11N| Dismissal: publication cancelled [chapter 11.14 patent gazette]|
    2018-03-27| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-01| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-02-09| B25A| Requested transfer of rights approved|Owner name: UNILEVER IP HOLDINGS B.V. (PB) |
    2021-05-04| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2021-08-24| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2021-12-07| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2022-02-01| 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 02/10/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP12193352.7|2012-11-20|
    EP12193352|2012-11-20|
    PCT/EP2013/070526|WO2014079621A1|2012-11-20|2013-10-02|Laundry compositions|
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