• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    COMPOSITION OF ABRASIVE CLEANING, METHOD FOR CLEANING A SURFACE, USE OF A CALCIUM CARBONATE REACTED ON THE SURFACE AS ABRASIVE MATERIAL, AND USE OF AN ABRASIVE CLEANING COMPOSITION. The present invention relates to an abrasive cleaning composition comprising at least 6% by weight, based on the total weight of the composition, of a surface-reacted calcium carbonate as an abrasive material, wherein the surface-reacted calcium carbonate is a product of the reaction of natural or synthetic calcium carbonate with carbon dioxide and at least one acid.
    公开号:BR112016012768B1
    申请号:R112016012768-4
    申请日:2014-12-12
    公开日:2020-11-03
    发明作者:Tanja Budde；Michael Skovby；Daniel E. Gerard
    申请人:Omya International Ag；
    IPC主号:
    专利说明:

    [001] The present invention relates to an abrasive cleaning composition, its use and a method for cleaning surfaces.
    [002] Abrasive cleaners are well known in the art and are widely used for cleaning all types of surfaces, especially surfaces that become dirty with difficulty removing stains and dirt. For example, abrasive cleaners can be used for cleaning household surfaces such as tables, sinks or plates, as well as in personal care products such as toothpaste, facial or body scrubs, or soaps.
    [003] Conventional abrasive cleaners contain inorganic abrasives such as carbonate, clay, silica, silicate, shale ash, perlite or quartz sand salts, or organic polymer beads such as polypropylene, PVC, melamine, urea, polyacrylate or derivatives of themselves. A liquid cleaning composition comprising calcium carbonate as an abrasive material is, for example, described in WO 2013/078949. A dry blasting process for cleaning solid surfaces involving the use of natural alkaline earth carbonate particles is described in WO 2009/133173.
    [004] Particulate calcium carbonate is a highly effective resistant dirt remover, but it also has a high potential for surface damage. For this reason, it is problematic to use it on delicate surfaces. For example, if used in toothpaste, calcium carbonate abrasives can damage tooth enamel and dentin. In addition, in order to create a feeling of pleasure in the mouth, conventional toothpastes require a high amount of calcium carbonate, which in turn can lead to an unfavorable chalk-like property.
    [005] In order to overcome some disadvantages of calcium carbonate based abrasives, the use of surface-coated calcium carbonate has been proposed. WO 2013/041711 describes a dental powder jet treatment, in which the calcium carbonate particles are coated with alkali metal fluoride. WO 02/085319 refers to a fluoride-compatible calcium carbonate, in which the calcium carbonate particles have been treated with fatty acids and / or polysaccharides. A pyrophosphate coating process for calcium carbonate dental abrasives is described in EP 0 219 483. WO 03/075874 refers to toothpaste compositions including acid-resistant calcium carbonate, which has been treated on the surface with silicate. However, all of these processes lead to calcium carbonate particles, in which the originally porous surface of the calcium carbonate particle is sealed by the applied surface coating, and thus, the surface structure is altered.
    [006] In view of the foregoing, there is a continuing need for new abrasives that can be used in cleaning compositions.
    [007] It is therefore an object of the present invention to provide an abrasive cleaning composition, which avoids at least one of the foregoing disadvantages. In particular, it is desirable to provide an abrasive cleaning composition that has very smooth abrasive properties, and for that reason, they can also be used for cleaning delicate surfaces. It is also desirable that the abrasive material provides a pleasant mouth feel when used in toothpaste.
    [008] Furthermore, it is an object of the present invention to provide an abrasive cleaning composition that is based on materials that can be obtained from natural sources. It is also desirable to provide a cleaning composition including abrasives that are easily biodegradable.
    [009] The preceding objects and others are resolved by the object material as defined here in the independent claims.
    [0010] According to an embodiment of the present invention, an abrasive cleaning composition is provided comprising at least 6% by weight, based on the total weight of the composition, of a calcium carbonate reacted on the surface as an abrasive material, wherein surface-reacted calcium carbonate is a product of the reaction of natural or synthetic calcium carbonate with carbon dioxide and at least one acid.
    [0011] According to another embodiment of the present invention, a method of cleaning a surface is provided, wherein the surface is brought into contact with an abrasive cleaning composition according to the present invention.
    [0012] According to yet another embodiment of the present invention, the use of a surface-reacted calcium carbonate as an abrasive material is provided, wherein the surface-reacted calcium carbonate is a product of the natural or synthetic calcium carbonate reaction with carbon dioxide and at least one acid.
    [0013] According to yet another embodiment of the present invention, the use of an abrasive cleaning composition according to the present invention for cleaning a surface is provided.
    [0014] Advantageous modalities of the present invention are defined in the corresponding subclaims.
    [0015] According to one embodiment the composition additionally comprises at least one additional abrasive material, preferably selected from the group consisting of silica, precipitated silica, alumina, aluminosilicate, metaphosphate, tricalcium phosphate, calcium pyrophosphate, ground natural calcium carbonate, precipitated calcium carbonate, sodium bicarbonate, bentonite, kaolin, aluminum hydroxide, calcium hydrogen phosphate, hydroxyapatite, and mixtures thereof. According to another embodiment, at least one acid is selected from the group consisting of hydrochloric acid, sulfuric acid, sulfuric acid, phosphoric acid, citric acid, oxalic acid, acetic acid, formic acid, and mixtures thereof, wherein preferably at least an acid is phosphoric acid.
    [0016] According to one embodiment, the calcium carbonate reacted on the surface is in the form of particles having a weight average particle size J50 of 0.1 to 100 pm, preferably from 0.5 to 50 pm, more preferably from 1 to 20 pm, even more preferably from 2 to 10 pm, and most preferably from 5 to 10 pm. According to another embodiment the composition comprises from 10 to 80% by weight, preferably from 15 to 70% by weight, more preferably from 20 to 60% by weight, even more preferably from 25 to 50% by weight, and more preferably about 30% by weight of the surface-reacted calcium carbonate, based on the total weight of the composition.
    [0017] According to one embodiment the composition is an oral care composition, preferably a toothpaste, a dental powder, a powder for treatment with a dental powder jet or a chewable gum, and in which preferably the reacted calcium carbonate on the surface it is a product of the reaction of natural or synthetic calcium carbonate with carbon dioxide and phosphoric acid. According to another embodiment, the calcium carbonate reacted on the surface has a dentin radioactive abrasion value (RDA) between 10 and 100, preferably between 30 and 70.
    [0018] According to one embodiment, the composition does not contain additional materials based on calcium carbonate. According to another embodiment, the surface-reacted calcium carbonate comprises insoluble calcium salt, at least partially crystalline from an anion of at least one acid, which is formed on the surface of natural or synthetic calcium carbonate. According to yet another embodiment the composition further comprises a surfactant, preferably in an amount of 0.1 to 10% by weight, preferably from 0.5 to 8% by weight, and more preferably from 1 to 5% by weight, with based on the total amount of the composition.
    [0019] According to a modality the surface, which is placed in contact with the inventive composition, is an animated surface, preferably selected from the group consisting of human skin, animal skin, human hair, animal hair, and fabrics from the oral cavity such as teeth, gums, tongue or oral surfaces. According to another embodiment, calcium carbonate reacted on the surface is used as a dental abrasive material.
    [0020] It should be understood that for the purpose of the present invention, the following terms have the following meaning.
    [0021] The term "abrasive material" in the sense of the present invention refers to a particulate substance that is capable of polishing or cleaning surfaces by rubbing or grinding. To determine the “abrasiveness” of the abrasive material, the methods described in the example section can be used.
    [0022] For the purpose of the present invention, an "acid" is defined as a Brpnsted-Lowry acid, which is to say, it is an HsO + ion provider. An "acid salt" is defined as an HsO + ion provider that is partially neutralized by an electropositive element. A "salt" is defined as an electrically neutral ionic compound formed from anions and cations. A “partially crystalline salt” is defined as a salt that, in XRD analysis, presents an essentially discrete diffraction pattern.
    [0023] A "carrier material" in the sense of the present invention is a base material that can be combined with the abrasive cleaning composition of the present invention and facilitates the application of the abrasive cleaning composition. Examples of carrier materials are formulations of toothpaste, chewable gums, curative adhesives, creams, oils or soaps.
    [0024] In the sense of the present invention, "radioactive dentin abrasion (RDA)" is a measure of the erosive effect of abrasives on the toothpaste on the tooth's dentin. It involves the use of standardized abrasives compared to the test sample. The determination of this value is done by determining the activity while cleaning the worn dentin that is radiolabelled by mild neutron irradiation. The values obtained depend on the size, quantity and surface structure of the abrasive used in the toothpaste. The RDA value is specified by DIN EN ISO 11609 standards. The RDA values given in the examples section of the present invention are relative to the RDA values, which have been measured and correlated to the RDA values mentioned above by the method described in the examples section.
    [0025] For the purposes of the present invention, the term "brightness" refers to the ability of a substrate, for example, a glass or plastic plate, to reflect some portion of the incident light at the angle of the mirror. The brightness can be based on a measurement of the amount of light specularly reflected from the surface of a substrate at a specific angle of incidence, for example, at 20 °, as in the case of brightness at 20 ° and is specified in percentage. The brightness can be determined according to EN ISO 8254-1: 2003.
    [0026] "Ground calcium carbonate" (GCC) in the sense of the present invention is a calcium carbonate obtained from natural sources, such as limestone, marble, dolomite, or chalk, and processed through a wet treatment and / or dry, such as grinding, screening and / or fractioning, for example, by a cyclone or classifier.
    [0027] "Precipitated calcium carbonate" (PCC) in the sense of the present invention is a synthesized material, obtained by precipitation following the reaction of carbon dioxide and lime in an aqueous environment or by the precipitation of a source of calcium and carbonate ion in Water. PCC can be in the form of vateritic, calcitic or aragonitic crystal.
    [0028] From the beginning to the end of this document, the "particle size" of a calcium carbonate material or abrasive material is described by its particle size distribution. The dx value represents the relative diameter at which x% by weight of the particles have smaller diameters than dx. This means that the J20 value is the particle size in which 20% by weight of all particles are smaller, and the dηs value is the particle size in which 75% by weight of all particles are smaller. The value of dso is thus the weight average particle size, i.e. 50% by weight of all grains are larger or smaller than this particle size. For the purpose of the present invention the particle size is specified as a weighted average particle size unless otherwise indicated. To determine the weighted average particle size value of a Malvern Mastersizer 2000, it can be used.
    [0029] A "specific surface area (SSA)" of a calcium carbonate in the sense of the present invention is defined as the surface area of the mineral pigment divided by the mass of the calcium carbonate. As used here, the specific surface area is measured by adsorption of nitrogen gas using the BET isotherm (ISO 9277: 2010) and is specified in m2 / g.
    [0030] In the sense of the present invention, the term "surfactant" refers to a compound that reduces surface tension or interfacial tension between two liquids or between a liquid and a solid, and can act as a detergent, wetting agent, emulsifier, foaming agent, or dispersant.
    [0031] For the purpose of the present invention, the term "viscosity" or "Brookfield viscosity" refers to Brookfield viscosity. The Brookfield viscosity is for this purpose measured by a Brookfield viscometer (Type RVT) at 20 ° C ± 2 ° C at 100 rpm using an appropriate spindle and is specified in mPa-s.
    [0032] A "suspension" or "slurry" in the sense of the present invention comprises insoluble solids and water, and optionally additional additives and usually contains large amounts of solids and is therefore more viscous and may be of higher density than the liquid from which it is formed.
    [0033] Where the term "comprising" is used in the present description and claims, it does not exclude other elements. For the purposes of the present invention, the term "consisting of" is considered to be a preferred embodiment of the term "comprised of". If in the following parts a group is defined as comprising at least a certain number of modalities, this is to be understood as describing a group, which preferably consists only of these modalities.
    [0034] When an indefinite or definite article is used when referring to a singular pronoun, for example, "um" "uma" or "o, a", this includes a plural of that pronoun unless something else is specifically reported .
    [0035] Terms such as "obtainable" or "definable" and "obtained" or "defined" are used interchangeably. This, for example, means that, unless the context clearly dictates otherwise, the term "obtained" is not meant to indicate that, for example, a modality must be obtained, for example, by the sequence of steps following the term " obtained "although such limited understanding is always included by the terms" obtained "or" defined "as a preferred modality.
    [0036] The inventive abrasive cleaning composition comprises at least 6% by weight, based on the total weight of the composition, of a calcium carbonate reacted on the surface as an abrasive material. Surface-reacted calcium carbonate is a product of the reaction of natural or synthetic calcium carbonate with carbon dioxide and at least one acid.
    [0037] Below, the details and preferred modalities of the inventive composition will be reported in greater detail. It should be understood that these technical details and modalities also apply to the inventive use of the composition, the inventive use of surface-reacted calcium carbonate as well as to the inventive method. Q surface reacted calcium carbonate
    [0038] According to the present invention, the surface-reacted calcium carbonate is a product of the reaction of natural or synthetic calcium carbonate with carbon dioxide and at least one acid.
    [0039] Natural (or ground) calcium carbonate (GCC) is understood to be a naturally occurring form of calcium carbonate, extracted from sedimentary rocks such as limestone or chalk, or from metamorphic marble rocks. Calcium carbonate is known to exist as three types of crystal polymorphs: calcite, aragonite and vaterite. Calcite, the most common crystal polymorph, is considered to be the most stable crystal form of calcium carbonate. Less common is aragonite, which has a grouped or discreet needle-like orthorhombic crystal structure. Vaterita is the rarest crystal polymorph of calcium carbonate and is generally unstable. Natural calcium carbonate is almost exclusively from the calcitic polymorph, which is referred to as triangular-rhombohedral and represents the most stable of the calcium carbonate polymorphs. The term "source" of calcium carbonate in the sense of the present invention refers to the naturally occurring mineral material from which calcium carbonate is obtained. The source of the calcium carbonate may comprise naturally occurring additional components such as magnesium carbonate, aluminum silicate etc.
    [0040] According to one embodiment of the present invention, natural calcium carbonate is selected from the group consisting of marble, chalk, dolomite, limestone and mixtures thereof.
    [0041] According to an embodiment of the present invention, GCC is obtained by dry grinding. According to another embodiment of the present invention, GCC is obtained by wet grinding and optionally subsequent drying.
    [0042] In general, the grinding step can be carried out with any conventional grinding device, for example, under conditions such that the grinding results predominantly from impacts with a secondary body, that is, in one or more of: a mill ball mill, rod mill, vibration mill, roller mill, centrifugal impact mill, vertical bead mill, friction mill, pin mill, hammer mill, sprayer, shredder, lump-oar paddle, knife cutter, or other equipment known to those skilled in the art. If the mineral material containing calcium carbonate comprises a mineral material containing wet-ground calcium carbonate, the grinding step can be carried out under conditions such that autogenous grinding takes place and / or by grinding with a horizontal sphere, and / or other such processes known to those skilled in the art. The mineral material containing wet ground calcium carbonate thus obtained can be washed and water removed by well-known processes, for example, by flocculation, filtration or forced evaporation before drying. The subsequent drying step can be carried out in a single step such as spray drying, or in at least two steps. It is also common for such mineral material to undergo a beneficiation step (such as a float, bleach or magnetic separation step) to remove impurities.
    [0043] "Precipitated calcium carbonate" (PCC) in the sense of the present invention is a synthesized material, generally obtained by precipitation following the reaction of carbon dioxide and lime in an aqueous environment or by precipitation from a source of calcium and carbonate ion in water or by precipitation of calcium and carbonate ions, for example CaCh and Na2COs, out of solution. Additional possible means of producing PCC are the soda lime process, or the Solvay process in which PCC is a by-product of ammonia production. Precipitated calcium carbonate exists in three primary crystalline forms: calcite, aragonite and vaterite, and there are many different polymorphs (crystal habits) for each of these crystalline forms. Calcite has a triangular structure with typical crystal habits such as scalenohedral (S-PCC), rhombohedral (R-PCC), hexagonal, pinacoidal, colloidal (C-PCC), cubic, and prismatic (P-PCC). Aragonite is an orthorhombic structure with crystal habits typical of twin hexagonal prismatic crystals, as well as a diverse arrangement in elongated prismatic shape, curved laminate, steep pyramid, chisel shaped crystals, tree with branches, and coral or spiral. Vaterita belongs to the hexagonal crystal system. The PCC slurry can have the water removed mechanically and dried.
    [0044] In accordance with an embodiment of the present invention, synthetic calcium carbonate is precipitated calcium carbonate, preferably comprising aragonitic, vateritic or calcitic mineralogical forms or mixtures thereof.
    [0045] In accordance with an embodiment of the present invention, natural or synthetic calcium carbonate is ground before treatment with carbon dioxide and at least one acid. The grinding step can be carried out with any conventional grinding device such as a grinding mill known to those skilled in the art.
    [0046] Preferably the surface-reacted calcium carbonate to be used in the present invention is prepared as an aqueous suspension having a pH, measured at 20 ° C, and greater than 6.0, preferably greater than 6.5, more preferably greater than 7.0, even more preferably not greater than 7.5.
    [0047] In a preferred process for preparing the aqueous suspension of surface-reacted calcium carbonate, the natural or synthetic calcium carbonate, or finely divided, such as by grinding, or not, is suspended in water. Preferably, the slurry has a natural or synthetic calcium carbonate content within the range of 1% by weight to 80% by weight, more preferably 3% by weight to 60% by weight, and even more preferably 5% by weight at 40% by weight, based on the weight of the slurry.
    [0048] In a next step, at least one acid is added to the aqueous suspension containing natural or synthetic calcium carbonate. According to an embodiment of the present invention, at least one acid is selected from the group consisting of hydrochloric acid, sulfuric acid, sulphoric acid, phosphoric acid, citric acid, oxalic acid, acetic acid, formic acid, and mixtures thereof. Preferably at least one acid is phosphoric acid. Without being limited by any theory, the inventors believe that the use of phosphoric acid can be beneficial if the surface-reacted calcium carbonate is used in oral applications.
    [0049] According to one embodiment, at least one acid has a pKa at 25 ° C of 2.5 or less. If the pKa at 25 ° C is 0 or less, the acid is preferably selected from sulfuric acid, hydrochloric acid, or mixtures thereof. If the pKa at 25 ° C is 0 to 2.5, the acid is preferably selected from H2SO3, HSO4, H3PO4, oxalic acid or mixtures thereof. At least one acid can be added to the suspension as a concentrated solution or a more diluted solution. Preferably, the molar ratio of at least one acid to natural or synthetic calcium carbonate is 0.05 to 4, more preferably 0.1 to 2.
    [0050] As an alternative, it is also possible to add at least one acid to water before natural or synthetic calcium carbonate is put into suspension.
    [0051] In a next step, natural or synthetic calcium carbonate is treated with carbon dioxide. Carbon dioxide can be formed in situ by treatment with acid and / or can be supplied from an external source. If a strong acid such as sulfuric acid or hydrochloric acid is used for treatment with natural or synthetic calcium carbonate acid, carbon dioxide is automatically formed. Alternatively or additionally, carbon dioxide can be supplied from an external source.
    [0052] Acid treatment and carbon dioxide treatment can be carried out simultaneously which is the case when a strong acid is used. It is also possible to carry out acid treatment first, for example, with a medium, strong acid having a pKa in the range of 0 to 2.5, followed by treatment with carbon dioxide supplied from an external source.
    [0053] Preferably, the concentration of carbon dioxide gas in the suspension is, in terms of volume, so the ratio (volume of suspension) :( volume of CO2 gas) is from 1: 0.05 to 1:20, even more preferably from 1: 0.05 to 1: 5.
    [0054] In a preferred embodiment, the acid treatment step and / or the carbon dioxide treatment step are repeated at least once, more preferably several times.
    [0055] Subsequent to acid treatment and carbon dioxide treatment, the pH of the aqueous suspension, measured at 20 ° C, naturally reaches a value of greater than 6.0, preferably greater than 6.5, more preferably greater than 7.0, even more preferably greater than 7.5, thus preparing the surface-reacted natural or synthetic calcium carbonate as an aqueous suspension having a pH of greater than 6.0, preferably greater than 6.5 , more preferably greater than 7.0, even more preferably greater than 7.5. If the aqueous suspension is allowed to reach equilibrium, the pH is greater than 7. A pH of greater than 6.0 can be adjusted without adding a base when stirring the aqueous suspension is continued for a sufficient period of time. , preferably 1 hour to 10 hours, more preferably 1 to 5 hours.
    [0056] Alternatively, before reaching equilibrium, which occurs at a pH greater than 7, the pH of the aqueous suspension can be increased to a value greater than 6 by the addition of a base following the treatment with carbon dioxide. Any conventional base such as sodium hydroxide or potassium hydroxide can be used.
    [0057] Additional details about the preparation of surface-reacted natural calcium carbonate are described in WO 00/39222 and US 2004/0020410, where surface-reacted natural calcium carbonate is described as a filler for papermaking . The use of surface-reacted calcium carbonate as a vehicle for the controlled release of active agents is described in WO 2010/037753.
    [0058] Similarly, precipitated calcium carbonate reacted on the surface is obtained. As can be seen in detail in EP 2 070 991, precipitated calcium carbonate reacted on the surface is obtained by contacting precipitated calcium carbonate with HsO + ions and with anions being solubilized in an aqueous medium and being able to form insoluble calcium salts in water in an aqueous medium to form a slurry of surface-reacted precipitated calcium carbonate, wherein said surface-reacted precipitated calcium carbonate comprises an insoluble, at least partially crystalline calcium salt of said anion formed on the surface of at least part of the precipitated calcium carbonate.
    [0059] Said solubilized calcium ions correspond to an excess of solubilized calcium ions relative to the solubilized calcium ions naturally generated in the dissolution of the calcium carbonate precipitated by the HsO + ions, in which said HsO + ions are provided only in the form of a counterion for the anion, that is, by adding the anion in the form of an acid or non-calcium acid salt, and in the absence of any additional calcium ions or sources of calcium ion generation.
    [0060] Said excess of solubilized calcium ions is preferably provided by the addition of a neutral or acidic soluble calcium salt, or by the addition of an acid or a neutral or acidic non-calcium salt which generates a neutral or acidic soluble calcium salt in situ. .
    [0061] Said H, O + ions may be provided by the addition of an acid or an acid salt of said anion, or the addition of an acid or an acid salt which serves simultaneously to supply all or part of said excess of calcium ions solubilized.
    [0062] The calcium carbonate reacted on the surface can be kept in suspension, optionally further stabilized by a dispersant. Conventional dispersants known to those skilled in the art can be used. A preferred dispersant is polyacrylic acid.
    [0063] Alternatively, the aqueous suspension described above can be dried, thereby obtaining the solid synthetic or natural (surface-reacted) (i.e., dry or containing so little water that it is not in fluid form) granules or a powder.
    [0064] According to an embodiment of the present invention, the surface-reacted calcium carbonate has a specific surface area of 5 m2 / g to 200 m2 / g, more preferably 20 m2 / g to 80 m2 / g and even more preferably 30 m2 / g to 60 m2 / g, measured using nitrogen and the BET method according to ISO 9277.
    [0065] According to an embodiment of the present invention, the surface-reacted calcium carbonate is in the form of particles having a weighted average particle size of 0.1 to 100 pm, preferably 0.5 to 50 pm, more preferably from 1 to 20 pm, even more preferably from 2 to 10 µm, and most preferably from 5 to 10 pm.
    [0066] In accordance with an embodiment of the present invention, the surface-reacted calcium carbonate comprises insoluble calcium salt, at least partially crystalline from an anion of at least one acid, which is formed on the surface of natural calcium carbonate or synthetic. Depending on the at least one acid used, the anion can be sulfate, sulfite, phosphate, citrate, oxalate, acetate, formate and / or chloride.
    [0067] According to a further aspect of the present invention, the use of a surface-reacted calcium carbonate as an abrasive material is provided, wherein the surface-reacted calcium carbonate is a product of the natural or synthetic calcium carbonate reaction with carbon dioxide and at least one acid. The abrasive material can be used in cleaning compositions, for example, household cleaners such as scrub cleaning creams or ceramic cooking plate cleaners, polishing pastes or creams, or cosmetic compositions such as body scrubs or facial peels.
    [0068] According to the preferred embodiment, the calcium carbonate reacted on the surface is used as a dental abrasive material. The dental abrasive material can be used, for example, as an abrasive material in toothpaste, dental powders or chewing gums or as an abrasive material under treatment with a dental powder jet. The abrasive cleaning composition
    [0069] The abrasive cleaning composition of the present invention comprises at least 6% by weight, based on the total weight of the composition, of a calcium carbonate reacted on the surface as an abrasive material. For example, the abrasive cleaning composition can comprise at least 7% by weight, at least 8% by weight, or at least 9% by weight, based on the total weight of the composition, of a calcium carbonate reacted on the surface as a abrasive material. According to an embodiment of the present invention, the composition comprises from 10 to 80% by weight, preferably from 15 to 70% by weight, more preferably from 20 to 60% by weight, even more preferably from 25 to 50% by weight, and more preferably about 30% by weight of the surface-reacted calcium carbonate, based on the total weight of the composition.
    [0070] The surface-reacted calcium carbonate may consist of only one type of surface-reacted calcium carbonate or it may be a mixture of two or more types of surface-reacted calcium carbonate. The abrasive cleaning composition of the present invention can contain the surface-reacted calcium carbonate as the only abrasive material. Alternatively, the abrasive cleaning composition of the present invention may contain the surface-reacted calcium carbonate in combination with at least one additional abrasive material. The additional abrasive material can be made of plastic, hard waxes, inorganic or organic abrasives, or natural materials.
    [0071] According to one embodiment, the abrasive cleaning composition of the present invention further comprises at least one additional abrasive material. Preferably the additional abrasive material is selected from the group consisting of silica, precipitated silica, alumina, aluminosilicate, metaphosphate, tricalcium phosphate, calcium pyrophosphate, ground natural calcium carbonate, precipitated calcium carbonate, sodium bicarbonate, bentonite, kaolin, hydroxide aluminum, calcium hydrogen phosphate, hydroxyapatite, and mixtures thereof. According to a preferred embodiment, the additional abrasive material is selected from ground calcium carbonate and / or precipitated silica. According to another preferred embodiment, at least one additional abrasive material is selected from the group consisting of natural calcium carbonate, precipitated calcium carbonate, aluminum hydroxide, calcium hydrogen phosphate, silica, hydroxyapatite, and mixtures thereof.
    [0072] According to one embodiment, the additional abrasive material has a weight average particle size of 0.1 to 100 pm, preferably from 0.5 to 50 pm, more preferably from 1 to 20 pm, and most preferably from 2 to 10 pm.
    [0073] The at least one additional abrasive material may be present in the abrasive cleaning composition in an amount of 1 to 80% by weight, based on the total weight of the composition, preferably from 5 to 70% by weight, more preferably from 10 to 60% by weight, and more preferably from 20 to 50% by weight.
    [0074] According to the preferred embodiment, the abrasive cleaning composition comprises at least 6% by weight of a calcium carbonate reacted on the surface as an abrasive material and from 1 to 80% by weight of an additional abrasive material, based on total weight of the composition.
    [0075] According to an embodiment of the present invention, the abrasive cleaning composition does not contain additional calcium carbonate based materials. Examples of calcium carbonate based materials are calcium carbonate, minerals containing calcium carbonate, or mixed carbonate fillers such as calcium associated with magnesium and analogues or derivatives, various materials such as clay or talc or analogues and derivatives, and mixtures of these fillers, such as, for example, mixtures of calcium talc-carbonate or calcium carbonate-kaolin, or mixtures of natural calcium carbonate with aluminum hydroxide, mica or with synthetic or natural fibers or mineral structures such as structures of calcium talc-carbonate or titanium talc-dioxide or calcium carbonate-titanium dioxide.
    [0076] The abrasive cleaning composition of the present invention can be in the form of a solid or in the form of a liquid. According to one embodiment, the abrasive cleaning composition is in the form of a solid, preferably a powder, a granulate, a tablet, a stick, a chunk, a block, a sponge or a lozenge. According to another embodiment, the abrasive cleaning composition is in the form of a liquid, preferably a solution, a suspension, a paste, an emulsion, a cream, an oil, or a gel.
    [0077] According to an embodiment of the present invention, the abrasive cleaning composition is a liquid aqueous composition. According to one embodiment the aqueous composition comprises from 1 to 90% by weight of water, based on the total weight of the composition, preferably from 5 to 80% by weight, more preferably from 10 to 70, and more preferably from 20 to 60 % by weight.
    [0078] According to another embodiment of the present invention, the abrasive cleaning composition is a non-aqueous liquid composition. According to one embodiment, the aqueous composition comprises from 1 to 90% by weight of a solvent, based on the total weight of the composition, preferably from 5 to 80% by weight, more preferably from 10 to 70, and more preferably from 20 to 70%. 60% by weight. Suitable solvents are known to those skilled in the art and are, for example, aliphatic alcohols, ethers and diethers having from 4 to 14 carbon atoms, glycols, alkoxylated glycols, glycol ethers, alkoxylated aromatic alcohols, aromatic alcohols, terpenes, natural oils, or mixtures thereof.
    [0079] According to one embodiment the abrasive cleaning composition is a neutral composition having a pH of 6 to 8, measured at 20 ° C, preferably from 6.5 to 7.5, and more preferably about 7. According with an alternative modality, the abrasive cleaning composition has a pH above 4, measured at 20 ° C. According to another alternative embodiment, the composition has a pH below 8, measured at 20 ° C. For example, the abrasive cleaning composition can have a pH of 8 to 11 or 8 to 10. Means for adjusting the pH are known to those skilled in the art.
    [0080] In case the abrasive cleaning composition is in liquid form, it can be a thickened composition having a Brookfield viscosity of 4,000 to 50,000 mPa-s at 20 ° C.
    [0081] The abrasive cleaning composition may additionally comprise a surfactant. According to an embodiment of the present invention, the abrasive cleaning composition comprises from 0.1 to 10% by weight of a surfactant, preferably from 0.5 to 8% by weight, and more preferably from 1 to 5% by weight, based on the total amount of the composition.
    [0082] Appropriate surfactants are known to those skilled in the art and can be selected from nonionic, anionic, zwitterionic, amphoteric, cationic surfactants, and mixtures thereof.
    [0083] Examples of suitable non-ionic surfactants are compounds produced by the condensation of simple alkylene oxides, which are hydrophilic in nature, with a hydrophobic aromatic alkyl or aliphatic compound having a reactive hydrogen atom. Suitable anionic surfactants are, for example, water-soluble salts of organic sulfuric acid monoesters and sulfonic acids that have a straight or branched alkyl group in the molecular structure containing 6 to 22 carbon atoms in the alkyl part. Examples of suitable zwitterionic surfactants are compounds of ammonium, sulfonium and aliphatic quaternary phosphonium, having an aliphatic group of 8 to 18 carbon atoms and an aliphatic group substituted by a water solubilizing group, anionic, for example, betaine and betaine derivatives such such as alkyl betaine, in particular C12-C16 alkyl betaine, betaine 3- (N, N-dimethyl-N-hexadecylammonium) -propane-1-sulfonate, betaine 3- (dodecylmethyl-sulfonium) -propane-l-sulfonate, 3- (betaine cetylmethyl-phosphonium) -propane-1-sulfonate and N, N-dimethyl-N-dodecyl-glycine. Suitable amphoteric surfactants are, for example, derived from secondary and tertiary aliphatic amines containing an alkyl group of 8 to 20 carbon atoms and an aliphatic group replaced by an anionic water solubilizing group, for example, sodium 3-dodecylamino-propionate, sodium 3- dodecylaminopropane-sulfonate and sodium N-2-hydroxy-dodecyl-N-methyltaurate. Examples of suitable cationic surfactants are quaternary ammonium salts having one or two alkyl or aralkyl groups of 8 to 20 carbon atoms and two or three small aliphatic groups (for example, methyl), for example, cetyltrimethyl ammonium chloride. Additional examples are given in well-known textbooks such as "Household Cleaning, Care and Maintenance Products", Edts. Herrmann G. Hauthal, G. Wagner, 1- Edition, Verlag fiir Chem. Industrie H. Ziolkowsky 2004, or “Kosmetische Emulsionen und Cremes”, Gerd Kutz, Verlag fiir Chem. Industrie H. Ziolkowsky 2001.
    [0084] The abrasive composition of the present invention may additionally comprise ingredients that aid its cleaning performance. For example, the composition may contain detergent boosters and mixtures of such boosters in an amount of up to 25% by weight, based on the total amount of the composition. Suitable inorganic or organic detergent reinforcers are known to those skilled in the art and can be selected, for example, from sodium tripolyphosphate or aluminum sodium silicate.
    [0085] According to a modality, in addition to the components already mentioned, the abrasive cleaning composition additionally comprises dispersing agents, thickeners, preservatives, humectants, foaming agents, fluoride sources, flavoring agents, fragrances, colorants, active agents, and / or buffer systems. Examples of active agents are pharmaceutically, biologically or cosmetically active agents, biocides or disinfectants. The abrasive cleaning composition of the present invention may also comprise additional optional ingredients that are not mentioned here, but are known to those skilled in the art.
    [0086] The abrasive cleaning composition of the present invention can further comprise a carrier material such as a toothpaste formulation, a chewable gum, an adhesive dressing, a soap, a cream, or an oil.
    [0087] The inventors of the present invention have surprisingly found that the abrasive cleaning composition comprising calcium carbonate reacted on the surface as an abrasive material provides very smooth and low abrasiveness. For this reason, the abrasive cleaning composition of the present invention is suitable for cleaning delicate surfaces, which are more likely to be damaged by conventional calcium carbonate abrasives, such as automotive paint, ceramic plate cleaners for cooking, automotive instrument panels, bathroom accessories, sensitive teeth or child's teeth.
    [0088] According to a preferred embodiment the abrasive cleaning composition of the present invention is an oral care composition. Preferably the abrasive cleaning composition is a toothpaste, a dental powder, a dental powder jet treatment, or a chewable gum, and more preferably a toothpaste.
    [0089] In case the abrasive cleaning composition is an oral care composition, the calcium carbonate reacted on the surface can be a product of the reaction of natural or synthetic calcium carbonate with carbon dioxide and phosphoric acid. The surface-reacted calcium carbonate may consist of a type of surface-reacted calcium carbonate or it may be a mixture of two or more types of surface-reacted calcium carbonate.
    [0090] According to a preferred embodiment of the present invention, the abrasive cleaning composition is a toothpaste and the surface-reacted calcium carbonate is a product of the reaction of natural or synthetic calcium carbonate with carbon dioxide and phosphoric acid . The toothpaste can have a pH between 8 and 10.
    [0091] According to one embodiment, the toothpaste comprises from 10 to 80% by weight, preferably from 15 to 70% by weight, more preferably from 20 to 60% by weight, even more preferably from 25 to 50% by weight. weight, and more preferably about 30% by weight of the surface-reacted calcium carbonate, based on the total weight of the toothpaste.
    [0092] The toothpaste of the present invention may contain the surface-reacted calcium carbonate as the only abrasive material. According to another embodiment, the toothpaste of the present invention additionally comprises at least one additional abrasive material. At least one additional abrasive material can be selected from the additional abrasive materials defined above. Preferably, at least one additional abrasive material is selected from the group consisting of natural calcium carbonate, precipitated calcium carbonate, aluminum hydroxide, calcium hydrogen phosphate, silica, hydroxyapatite, and mixtures thereof.
    [0093] According to an embodiment of the present invention, the abrasive cleaning composition is a toothpaste comprising at least 6% by weight based on the total weight of the toothpaste, of a calcium carbonate reacted on the surface with carbon dioxide. carbon and at least one acid, preferably phosphoric acid. According to another embodiment of the present invention, the abrasive cleaning composition is a toothpaste comprising at least 6% by weight, based on the total weight of the toothpaste, of a calcium carbonate reacted on the surface with carbon dioxide and at least one acid, preferably phosphoric acid, and from 1 to 80% by weight of an additional abrasive material, preferably selected from the group consisting of natural calcium carbonate, precipitated calcium carbonate, aluminum hydroxide, calcium hydrogen phosphate, silica, hydroxyapatite, and mixtures thereof.
    [0094] According to an embodiment of the present invention, the abrasive cleaning composition is an oral care composition and the abrasive materials included in the oral care composition have a dentin radioactive abrasion (RDA) value between 10 and 100, preferably between 30 and 70. According to an embodiment of the present invention, the abrasive cleaning composition is an oral care composition and the surface-reacted calcium carbonate included in the oral care composition has a dentin radioactive abrasion (RDA) value between 10 and 100, preferably between 30 and 70. According to another embodiment of the present invention, the abrasive cleaning composition is a toothpaste and the surface-reacted calcium carbonate included in the toothpaste has radioactive abrasion on the dentin ( RDA) between 10 and 100, preferably between 30 and 70. According to an embodiment of the present invention, toothpaste is a toothpaste for sensitive teeth and / or for children's teeth s, and preferably the surface-reacted calcium carbonate has an RDA between 30 and 70, and more preferably between 30 and 50.
    [0095] In addition to the abrasive material, the oral care composition may additionally comprise fluoride compounds, surfactants, binders, humectants, remineralizers, flavoring agents, sweetening agents and / or water.
    [0096] Examples of fluoride compounds are sodium fluoride, stannous fluoride, sodium monofluorophosphate, potassium fluoride, stannous potassium fluoride, sodium fluorostanate, stannous chlorofluoride and amine fluoride. Fluoride compounds can be added in an amount of 0.1 to 2% by weight, based on the total weight of the oral care composition. Good results can be achieved by employing an amount of fluoride compound to provide fluoride ions available in the range of 300 to 2000 ppm in the toothpaste, preferably about 1 450 ppm.
    [0097] Suitable surfactants are generally anionic organic synthetic surfactants across a wide pH range. Representatives of such surfactants used in the range of about 0.5 to 5% by weight, based on the total weight of the oral care composition, are soluble salts of alkyl Cw-Cis sulfates, such as sodium lauryl sulfate, of monoglycerides fatty acid sulfonates, such as sodium monoglyceride sulfonates, taurine fatty acid amides, such as sodium N-methyl-N-palmitoyltauride, and isethionic acid fatty acid esters, and aliphatic acylamides, such as N- sodium lauroyl sarcosinate. However, surfactants obtained from natural sources such as cocamidopropyl betaine can also be used.
    [0098] Binders or thickening agents suitable for providing the desired consistency are, for example, hydroxyethyl cellulose, sodium carboxymethyl cellulose, natural gums such as karaya gum, arabic gum, tragacanth gum, xanthan gum or cellulose gum, colloidal silicates, or finely divided silica. Generally, 0.5 to 5% by weight, based on the total weight of the toothpaste composition, can be used.
    [0099] Various humectants known to those skilled in the art can be used, such as glycerin, sorbitol and other polyhydric alcohols, for example, in an amount of 20 to 40% by weight, based on the total weight of the oral care composition . Examples of flavoring agents include oil of wintergreen, peppermint oil, peppermint oil, clove oil, sassafras oil and the like. Saccharin, aspartame, dextrose, or levulose can be used as sweetening agents, for example, in an amount of 0.01 to 1% by weight, based on the total weight of the oral care composition. Preservatives such as sodium benzoate can be present in an amount of 0.01 to 1% by weight, based on the total weight of the oral care composition. Colorants such as titanium dioxide can also be added to the oral care composition, for example, in an amount of 0.01 to 1% by weight, based on the total weight of the oral care composition.
    [00100] According to one embodiment of the present invention, toothpaste is produced by a method comprising the following steps: i) providing a mixture of water and humectants, and optionally at least one of a thickener, a preservative, a fluoride , and a sweetener, ii) add a surface-reacted calcium carbonate, and optionally a colorant, to the mixture in step i), where the surface-reacted calcium carbonate is a product of the reaction of natural or synthetic calcium carbonate with carbon dioxide and at least one acid, iii) add a surfactant to the mixture from step ii), and iv) optionally add a flavoring agent to the mixture from step iii), where optionally an additional abrasive material is added after step ii ) and before step iii).
    [00101] However, the toothpaste of the present invention can also be produced by any other method known to those skilled in the art.
    [00102] In accordance with a further aspect of the present invention, the abrasive cleaning composition of the present invention is used for cleaning a surface.
    [00103] According to a further aspect of the present invention, a method for cleaning a surface is provided, wherein the surface is brought into contact with an abrasive cleaning composition according to the present invention. The surface can be brought into contact with the inventive composition by applying a composition to the surface, for example, by spraying, pouring or squeezing. The abrasive cleaning composition can be applied to the surface using a suitable medium such as a mop, paper towel, brush, or cloth, soaked in the composition, which can be in pure or diluted form.
    [00104] According to one embodiment of the present invention, the surface is an inanimate surface, preferably selected from the group consisting of domestic hard surfaces, dish surfaces, leather surfaces, and automotive vehicle surfaces. Examples of domestic hard surfaces are refrigerators, freezers, washing machines, automatic dryers, ovens, microwave ovens, ceramic cooking plates, bathroom accessories or dish washers. Examples of dish surfaces are plates, cutlery, cutting boards, or pans.
    [00105] According to another embodiment of the present invention, the surface is an animated surface, preferably selected from the group consisting of human skin, animal skin, human hair, animal hair, and tissues of the oral cavity such as teeth, gums , tongue or buccal surfaces.
    [00106] According to an embodiment of the present invention, the method of the present invention further comprises the step of rinsing the composition.
    [00107] The scope and interest of the present invention will be better understood based on the following figures and examples which are intended to illustrate certain embodiments of the present invention and are not limiting. Description of the figure:
    [00108] Figure 1 shows a photograph of toothpaste samples according to the present invention, which were applied to a paper towel on the day of production. Examples 1. Measurement methods
    [00109] In the following, measurement methods implemented in the examples are described. Particle size distribution
    [00110] The particle size distribution of the abrasive material particles was measured using a Sedigraph 5100 from Micromeritics, USA. The method and instrument are known to those skilled in the art and are commonly used to determine the grain size of fillers and pigments. The measurement was performed in an aqueous solution comprising 0.1% by weight of Na4 2θ7. The samples were dispersed using a high speed agitator and supersonic. For the measurement of the dispersed samples, no additional dispersing agent was added. PH value
    [00111] The pH of the suspension was measured at 25 ° C using a Mettler Toledo Seven Easy pH meter and a Mettler Toledo InLab® Expert Pro pH electrode. A three point calibration (according to the segment method) of the instrument it was first made using commercially available buffer solutions having pH values of 4, 7 and 10 at 20 ° C (from Sigma-Aldrich Corp., USA). The reported pH values are the values of the end point detected by the instrument (the end point was when the measured signal differed by less than 0.1 mV from the mean over the last 6 seconds). Relative dentin radioactive abrasion (RDA)
    [00112] The relative RDA of an abrasive material was determined using a modified scrub resistance and washability tester (Model 494, Erichsen GmbH & Co. KG, Germany) equipped with a toothbrush head and a Plexiglass surface mounted on a stainless steel plate. The toothbrush head rubbed the Plexiglas surface 5000 times, which was covered with the slurry containing abrasive cleaning particles, such as calcium carbonate or silica. Abrasion on Plexiglass plates was assessed by measuring surface imperfections and the depth of scratches caused by abrasive particles. For measurement, an electron microscopy was used. 10 measurements were performed per plate. The measurement points were selected at random.
    [00113] For the application of the slurry on the Plexiglas surface, a peristaltic pump was used to pump 200 g of slurry (mixture of 15% abrasive material and a replacement of saliva without enzymes) in a circuit. The pump setting was 30, which corresponded to a pumped volume of approximately 200 ml of water per minute. A silicone tube with an internal diameter of 6 mm was used. The machine was arranged at an angle so that the direction for the exit in relation to the sample mounting plate was at an inclination of 2%, in order to have an appropriate flow of slurry.
    [00114] Five Plexiglass plates were placed in the middle of the stainless steel plate and fixed on the sides using tape (Plexiglas GS, 3 mm thick, color: orange 2C04, pre-cut to a size of 80 mm x 80 mm). Five plates were necessary to always ensure the same height for the brushes by brushing the surface. Only the middle plate (number 3) was used for the final abrasion assessment. The other plates were used only to adjust the height, so they could be used several times.
    [00115] A toothbrush head (Paro, Switzerland) was placed above the middle of the stainless steel plate. All toothbrush bristles were the same length, rounded and made of nylon. The artifact itself was made of stainless steel and had, including the toothbrush head, a total weight of approximately 157 g.
    [00116] To quantify and qualify the abrasion of the calcium carbonate particles tested it was necessary to establish a calibration curve. To generate such a curve, the abrasion of a placebo was measured first, which was just the mixture of saliva with no cleaning particles. This test also took into account the influence of the toothbrush on abrasion. In addition, abrasion using the system mentioned above was measured for two silicas (Sorbosil AC 39 and Sorbosil AC 33), which are both well documented and established as abrasives in the toothpaste industry. Their officially measured abrasion values (RDA) are published and known. The abrasion values obtained by the measurement described here were then related to the published data, which made it possible to compare the measurement data described here with the values obtained by the official ISO 11609 standard method.
    [00117] The calibration curves started with the placebo at an abrasion = 0 and were stepped up to an abrasion value of 180, where Sorbosil AC had a value of 105 and Sorbosil AC 33 a value of 180. Brookfield Viscosity
    [00118] Brookfield viscosity of the abrasive material suspension or abrasive cleaning composition was measured after one hour of production and one minute and stirring at 20 ° C ± 2 ° C at 100 rpm using a Brookfield type RVT viscometer equipped with an appropriate disc spindle, for example spindle 2 to 5. Brightness measurement
    [00119] Gloss measurements were performed using the “Haze-Gloss” turbidity meter (BYK Gardener GmbH, Germany). 2. Materials
    [00120] MCC1: A mixture gave 00 parts of surface-reacted calcium carbonate, based on GCC1 and phosphoric acid, and 20 parts of GCC2. Properties: dso = 8.6 pm, d <& = 20.2 pm, relative to RDA = 37, low level of abrasion.
    [00121] MCC2: surface-reacted calcium carbonate based on GCC2 and phosphoric acid. Properties: dso = 6.3 pm, dg% = 15.8 pm, relative to RDA = 11, very low level of abrasion.
    [00122] MCC4: surface-reacted calcium carbonate based on GCC1 and phosphoric acid. Properties: dso = 3.8 pm, dgs = 11.0 pm, relative to RDA = 23, low level of abrasion.
    [00123] GCC1: ground natural calcium carbonate obtained from Orgon limestone. Properties: dso = 3 pm, dg% = 12, relative to RDA = 81, average level of abrasion.
    [00124] GCC2: ground natural calcium carbonate obtained from Avenza marble. Properties: dso = 1,7pm, dw = 8,0, relative to RDA = 100, high level of abrasion.
    [00125] GCC3: ground natural calcium carbonate obtained from Avenza marble. Properties: dso = 8.86 pm, dw = 50.0 pm. 3. Examples Example 1 - Toothpaste compositions
    [00126] The toothpaste samples 1 to 6 were produced according to the following procedure using the ingredients and amounts compiled in Table 1 below.
    [00127] Step A: Water and sorbitol were mixed in a beaker. Xanthan gum, sodium benzoate, fluorophosphate (phoskadent Na 211, BK Guilini, Germany) and sodium saccharin were mixed and the mixture obtained was added in a beaker.
    [00128] Step B: Surface-reacted calcium carbonate and titanium dioxide were moistened with water and subsequently added to the mixture in step A. The mixture was homogenized until a uniform mixture was obtained.
    [00129] Step C: The silica Sorbosil TC 15 (PQ Corporation, USA) was added to the mixture from step B under homogenization conditions, whereby the mixture was strongly heated. The mixture was stirred until it was cooled to room temperature.
    [00130] Step D: The surfactant sodium lauryl sulfate was added as a 25% solution to the mixture of step C under slow stirring.
    [00131] Step E: 0.8% by weight (2.4 g) of mint flavoring was added to the mixture from step D.
    [00132] Phase stability was assessed by visual inspection, and pH value measurements were performed as described above. The sensation in the mouth was assessed by brushing the teeth with samples of toothpaste. The samples were tested on the day of production. The results are compiled in Table 2 below, which shows that all samples were stable and had a good texture and a uniform surface. In addition, all samples had an acceptable pH.
    Table 1: Ingredients and quantities of toothpaste samples 1 to 6. The percentages refer to weight percentages based on the total weight of the composition.
    Table 2: Results obtained for samples 1 to 6. Example 2 - Toothpaste compositions
    [00133] The toothpaste samples 7 to 9 were produced according to the following procedure using the ingredients and quantities compiled in Table 3 below.
    [00134] Step A: Water, sorbitol, fluorophosphate (phoskadent Na 211, BK Guilini, Germany), cellulose gum (Akucell AF 2985, AkzoNobel NV, The Netherlands), and sweetener (Sunett®, Celanese Corp., USA) mixed in a beaker.
    [00135] Step B: Surface-reacted calcium carbonate and titanium dioxide were moistened with water and subsequently added to the mixture in step A. The mixture was homogenized until a uniform mixture was obtained.
    [00136] Step C: The silica Sorbosil TC 15 (PQ Corporation, USA) was added to the mixture from step B under homogenization conditions, whereby the mixture was strongly heated. The mixture was stirred until it was cooled to room temperature.
    [00137] Step D: The surfactant Tego Betaine ZF (Evonik Industries AG, Germany) was added as a 25% solution to the mixture of step C under slow stirring.
    [00138] Step E: 0.8% by weight (2.4 g) of peppermint flavoring was added to the mixture from step D.
    [00139] Phase stability was assessed by visual inspection, and pH value measurements were performed as described above. The sensation in the mouth was assessed by brushing the teeth with samples of toothpaste. The samples were tested on the day of production, after 6 weeks, 12 weeks, 6 months and 12 months. The results are compiled in Tables 4 to 6 below, which show that all samples were stable and had good texture and a uniform surface. In addition, all samples had an acceptable pH, even after a long period of storage. Figure 1 shows a photograph of samples 7 to 9 applied to a paper towel on the day of production, which shows that the texture of the samples is very uniform and cream-like.
    Table 3: Ingredients and quantities of toothpaste samples 7 to 9. The percentages refer to weight percentages based on the total weight of the composition.
    Table 4: Results obtained for sample 7.
    Table 5: Results obtained for sample 8.
    Table 6: Results obtained for sample 9. Example 3 - Scrub cleaning cream
    [00140] The 10-12 scrub cleaning cream samples were produced according to the following procedure using the ingredients and amounts compiled in Table 7 below.
    [00141] Step 1: Water and a thickener (Rheosolve 633, Coatex SAS, France) were added to a beaker equipped with a stirrer (speed: 380 rpm). The pH was adjusted between 10 and 11 using sodium hydroxide (50% solution).
    [00142] Step 2: Surface-reacted calcium carbonate or ground calcium carbonate (as a comparative example) was added in stages to the mixture from step 1 under high agitation (speed 2, 250-300 rpm). The mixture was stirred until it was homogeneous.
    [00143] Step 3: A coconut glycoside surfactant (Plantacare 818 UP, BASF, Germany) was added in the form of a 20% solution to the homogeneous mixture from step 2. Subsequently, lemon essential oil and Polysorbate 60 were added with stirring slow (speed 1.70 rpm).
    Table 7: Ingredients and amounts of swab cleaning samples 10 to 12. The percentages refer to weight percentages based on the total weight of the composition.
    [00144] The abrasion of the scrubbing cream samples samples obtained was tested within 24 h at a temperature of 23 ° C according to the following procedure:
    [00145] Abrasion was determined using a scrub resistance and washability tester (Model 494, Erichsen GmbH & Co. KG, Germany) equipped with a fixture with a plastic plate to attach a cloth (Erichsen GmbH & Co. KG, Germany). Three weights (400 g) were attached to the fixture so that the fixture including the weights and the plate weighed about 580 g. A square of cloth (size: 9 x 9.1 cm) was fixed to the plastic plate with adhesive tape (Scotch3M) and was placed in the notches of the mooring.
    [00146] In the test apparatus, a glass plate was fixed in a horizontal position in the space provided for this purpose. A Plexiglass plate (size: 4 cm x 30 cm, Steba Kunststoffe AG, Swiss) was glued with Scotch tape over the glass plate. The distance between the top of the tray and the plate was about 3.9 cm and between the bottom of the tray and the plate about 4.5 cm.
    [00147] 2 g of water were added to the cloth attached to the fixation. 25 g of polishing agent was added on the Plexiglass plate. The fixation was positioned on the Plexiglass plate with a tension cable. The test machine was set for 200 cycles and started. At the end of the test, the Plexiglass plate was removed and rinsed. The frame of the machine and the glass plate were cleaned with hot water, followed by deionized water. Each sample was tested three times.
    [00148] The abrasion of the scrubbing cream samples was determined by measuring the gloss of the Plexiglas plate at 20 ° using the “Haze-Gloss” turbidity meter (BYK Gardener GmbH, Germany). The measurement was performed at 8 different points in the center of the plate by gently moving the plate from left to right and from top to bottom. The average brightness value for each sample is given in Table 8 below. The abrasiveness of a sample was calculated by subtracting the average brightness value measured for the Plexiglass plate that was treated with the respective sample from the average brightness value measured for the untreated Plexiglas plate. The value and level of abrasion for each sample are given in Table 8 below.
    Table 8: Results obtained for swab cleaning cream samples 10 to 12.
    [00149] It can be concluded from Table 8 that the abrasive cleaning compositions including the surface-reacted calcium carbonate abrasive according to the present invention have a lower abrasion value and caused less damage to the cleaned surface (indicated by the upper value brightness) compared to the cleaning composition of the comparative example containing the ground calcium carbonate.
    权利要求:
    Claims (12)
    [0001]
    1. Abrasive cleaning composition, characterized by the fact that it comprises from 10 to 80% by weight, based on the total weight of the composition, of a calcium carbonate reacted on the surface as an abrasive material, in which the calcium carbonate reacted on the surface it is a product of the reaction of natural or synthetic calcium carbonate with carbon dioxide and at least one acid, and in addition a surfactant; wherein the at least one acid is selected from the group consisting of hydrochloric acid, sulfuric acid, sulfuric acid, phosphoric acid, citric acid, oxalic acid, acetic acid, formic acid and mixtures thereof; carbon dioxide is formed in situ by treatment with acid and / or can be supplied from an external source; and the surface-reacted calcium carbonate comprises an insoluble, at least partially crystalline calcium salt of an anion of at least one acid, which is formed on the surface of natural or synthetic calcium carbonate.
    [0002]
    2. Composition according to claim 1, characterized in that the composition additionally comprises at least one abrasive material, preferably selected from the group consisting of silica, precipitated silica, alumina, aluminum silicate, metaphosphate, tricalcium phosphate, calcium pyrophosphate, ground natural calcium carbonate, precipitated calcium carbonate, sodium bicarbonate, bentonite, kaolin, aluminum hydroxide, calcium hydrogen phosphate, hydroxyapatite and mixtures thereof.
    [0003]
    Composition according to claim 1 or 2, characterized by the fact that the at least one acid is phosphoric acid.
    [0004]
    Composition according to any one of claims 1 to 3, characterized by the fact that the surface-reacted calcium carbonate is in the form of particles having a weight average particle size of 0.1 to 100 pm, preferably 0, 5 to 50 pm, more preferably from 1 to 20 pm, even more preferably from 2 to 10 pm and most preferably from 5 to 10 pm.
    [0005]
    Composition according to any one of claims 1 to 4, characterized by the fact that the composition comprises from 15 to 70% by weight, more preferably from 20 to 60% by weight, even more preferably from 25 to 50% by weight, and more preferably 30% by weight of the surface-reacted calcium carbonate, based on the total weight of the composition.
    [0006]
    6. Composition according to any one of claims 1 to 5, characterized by the fact that the composition is an oral care composition, preferably a toothpaste, a dental powder, a powder for dental powder jet treatment or a chewable gum , and wherein the surface-reacted calcium carbonate is preferably a product of the reaction of natural or synthetic calcium carbonate with carbon dioxide and phosphoric acid.
    [0007]
    Composition according to claim 6, characterized in that the calcium carbonate reacted on the surface has a dentin radioactive abrasion (RDA) value between 10 and 100, preferably between 30 and 70.
    [0008]
    Composition according to any one of claims 1 to 7, characterized by the fact that the composition is free of additional materials based on calcium carbonate.
    [0009]
    Composition according to any one of claims 1 to 8, characterized in that the composition comprises the surfactant in an amount of 0.1 to 10% by weight, preferably from 0.5 to 8% by weight, and more preferably from 1 to 5% by weight, based on the total amount of the composition.
    [0010]
    Composition according to any one of claims 1 to 9, characterized in that it is for use in cleaning tissues of the oral cavity.
    [0011]
    11. Non-therapeutic use of surface-reacted calcium carbonate, characterized by the fact that it is an abrasive material, in which surface-reacted calcium carbonate is a product of the reaction of natural or synthetic calcium carbonate with carbon dioxide and at least one acid, wherein the at least one acid is selected from the group consisting of hydrochloric acid, sulfuric acid, sulfuric acid, phosphoric acid, citric acid, oxalic acid, acetic acid, formic acid and mixtures thereof; carbon dioxide is formed in situ by treatment with acid and / or can be supplied from an external source; and the surface-reacted calcium carbonate comprises an insoluble, at least partially crystalline calcium salt of an anion of at least one acid, which is formed on the surface of natural or synthetic calcium carbonate.
    [0012]
    12. Use of an abrasive cleaning composition as defined in any of claims 1 to 10, characterized in that it is for cleaning an inanimate surface.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112016012768B1|2020-11-03|abrasive cleaning composition, non-therapeutic use of a surface-reacted calcium carbonate, and use of an abrasive cleaning composition
    JP5463035B2|2014-04-09|silica
    RU2336919C2|2008-10-27|Precipitated calcium carbonate
    RU2323712C2|2008-05-10|Abrasive compositions for transparent tooth paste
    PT825847E|2001-04-30|DENTIFICAL COMPOSITIONS
    PT824340E|2001-04-30|DENTIFICAL COMPOSITIONS
    MXPA97008433A|1998-02-01|Dentifri compositions
    US20180258288A1|2018-09-13|Surface-treated calcium carbonate with improved stability in environments with a ph of 4.5 to 7
    BR112015006809B1|2020-04-14|oral care composition, remineralization method and / or teeth whitening and manufacturing process of an oral care composition
    JP6863985B2|2021-04-21|Oral care composition for tooth remineralization and whitening
    WO2014082951A2|2014-06-05|Oral care compositions
    BR112020005762A2|2020-10-13|toothpaste composition
    BR112015011842B1|2019-07-23|COMPOSITION OF ORAL TREATMENT AND CLEANING METHOD OF ORAL CAVITY SURFACES
    同族专利:
    公开号 | 公开日
    CN105873642A|2016-08-17|
    CL2017002136A1|2018-04-13|
    PT2883573T|2018-01-04|
    EP3079778A1|2016-10-19|
    KR101851087B1|2018-04-20|
    NO2883573T3|2018-03-24|
    ES2654577T5|2021-06-17|
    EP2883573B2|2020-10-28|
    KR20160078489A|2016-07-04|
    PL2883573T5|2021-04-19|
    US10780031B2|2020-09-22|
    ZA201604565B|2017-09-27|
    CA2928799A1|2015-06-18|
    WO2015086815A1|2015-06-18|
    AU2014363407B2|2017-01-19|
    RU2671507C2|2018-11-01|
    PL2883573T3|2018-03-30|
    NZ720219A|2017-06-30|
    CN105873642B|2021-10-22|
    CA2928799C|2018-09-25|
    RU2016127915A|2018-01-18|
    ES2654577T3|2018-02-14|
    UY35872A|2015-07-31|
    TW201534704A|2015-09-16|
    EP2883573B1|2017-10-25|
    AR098692A1|2016-06-08|
    US20160271025A1|2016-09-22|
    MX2016007702A|2016-09-09|
    TWI527888B|2016-04-01|
    EP2883573A1|2015-06-17|
    CL2016001383A1|2016-12-16|
    MX354568B|2018-03-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB231987A†|1924-02-26|1925-04-16|Mabel Mary Wilson|A cleansing agent, specially for aluminium ware|
    DE2757290A1|1977-12-22|1979-07-05|Blendax Werke Schneider Co|TOOTHPASTE|
    US4678662A|1985-10-09|1987-07-07|Monsanto Company|Pyrophosphate coating process for calcium carbonate dental abrasives|
    US4940513A|1988-12-05|1990-07-10|The Procter & Gamble Company|Process for preparing soft tissue paper treated with noncationic surfactant|
    JP2684112B2†|1989-06-29|1997-12-03|丸尾カルシウム株式会社|Method for producing needle-like aragonite crystalline calcium carbonate|
    JP3004852B2†|1993-10-18|2000-01-31|奥多摩工業株式会社|Method for producing light calcium carbonate-hydroxyapatite composite and light calcium carbonate-apatite composite|
    AU5288399A|1998-08-24|2000-03-14|Ashcroft, Alexander Thomas|Toothpaste comprising fine and coarse calcium carbonate|
    FR2787802B1|1998-12-24|2001-02-02|Pluss Stauffer Ag|NOVEL FILLER OR PIGMENT OR MINERAL TREATED FOR PAPER, ESPECIALLY PIGMENT CONTAINING NATURAL CACO3, METHOD FOR MANUFACTURING SAME, COMPOSITIONS CONTAINING THEM, AND APPLICATIONS THEREOF|
    JP3484425B2|2001-03-14|2004-01-06|花王株式会社|Toothpaste|
    CA2443747A1|2001-04-24|2002-10-31|Specialty Minerals Inc.|Fluoride compatible calcium carbonate|
    US20040120902A1|2001-04-24|2004-06-24|Wernett Patrick Clinton|Fluoride compatible calcium carbonate|
    WO2003075874A1|2002-03-08|2003-09-18|Quimica Industrial Barra Do Pirai Ltda.|Toothpaste composition including acid resistant calcium carbonate and a method of making the same|
    PL2029480T3†|2006-05-30|2017-10-31|Coswell Spa|Biologicallly active nanoparticles of a carbonate-substituted hydroxyapatite, process for their preparation and compositions incorporating the same|
    SI1975310T1|2007-03-21|2012-06-29|Omya Development Ag|Process for the control of pitch|
    WO2009040597A1†|2007-09-28|2009-04-02|Laboratorio Chimico Farmaceutico Sammarinese S.A.|Liquid cleaning composition and method of cleaning a surface|
    PT2093261E|2007-11-02|2013-11-26|Omya Int Ag|Use of a surface-reacted calcium carbonate in tissue paper, process to prepare a tissue paper product of improved softness, and resulting improved softness tissue paper products|
    PT2070991E|2007-12-12|2010-10-25|Omya Development Ag|Process to make surface-reacted precipitated calcium carbonate|
    MX364537B|2008-02-08|2019-04-30|Colgate Palmolive Co|Oral care product and methods of use and manufacture thereof.|
    US7867358B2|2008-04-30|2011-01-11|Xyleco, Inc.|Paper products and methods and systems for manufacturing such products|
    EP2113339A1|2008-04-30|2009-11-04|Omya Development AG|Alkaline earth carbonate containing mineral for surface cleaning|
    EP2168572A1|2008-09-30|2010-03-31|Omya Development Ag|New controlled release active agent carrier|
    WO2010068428A1|2008-11-25|2010-06-17|The Procter & Gamble Company|Oral care compositions with improved aesthetics and fused silica|
    PL2264108T3|2009-06-15|2012-07-31|Omya Int Ag|Process to prepare a surface-reacted calcium carbonate implementing a weak acid|
    US10278904B2|2011-09-23|2019-05-07|Christopher Louis Tsu|Powder for dental powder blasting|
    BR112014006689B1†|2011-09-23|2018-11-21|Unilever N.V|oral care composition|
    EP2785822A4|2011-12-01|2015-12-16|Unilever Nv|Liquid composition for cleaning of head surfaces|
    ES2584628T3|2012-07-13|2016-09-28|Omya International Ag|Minerals containing modified surface calcium carbonate and its use|
    SI2719373T1|2012-10-12|2017-07-31|Omya International Ag|Fast disintegrating solid dosage form formulation comprising functionalized calcium carbonate and method of their manufacture|
    PL2883573T5|2013-12-13|2021-04-19|Omya International Ag|Abrasive cleaning composition|PL2883573T5|2013-12-13|2021-04-19|Omya International Ag|Abrasive cleaning composition|
    PL2997833T3|2014-09-22|2018-07-31|Omya International Ag|Surface-reacted calcium carbonate for use as anti-caking agent|
    EP3045503A1|2015-01-15|2016-07-20|Omya International AG|Surface-treated calcium carbonate with improved stability in environments with a pH of 4.5 to 7|
    EP3175835A1|2015-12-04|2017-06-07|Omya International AG|Oral care composition for remineralisation and whitening of teeth|
    US10434520B2|2016-08-12|2019-10-08|Arr-Maz Products, L.P.|Collector for beneficiating carbonaceous phosphate ores|
    EP3496819B1|2016-08-12|2020-07-29|Unilever N.V.|Hair treatment composition|
    KR101885880B1|2017-05-12|2018-08-10|군산대학교 산학협력단|Composition for toothpaste containing β-tricalcium phosphate and preparing method for thereof|
    EP3517176A1|2018-01-26|2019-07-31|Omya International AG|Surface-reacted calcium carbonate for the use as skin appearance modifier|
    EP3517178A1|2018-01-26|2019-07-31|Omya International AG|Surface-reacted calcium carbonate for modifying the biomechanical properties of the skin|
    CN108441365A|2018-04-23|2018-08-24|孙淼|A kind of new-energy automobile curing agent and preparation method thereof|
    WO2020058837A1|2018-09-18|2020-03-26|Ko Shwe Ventures|An orally chewable gum composition having cosmetic and therapeutic effects for improving overall oral health of betel nut consumer|
    EP3628705A1|2018-09-28|2020-04-01|Omya International AG|Process for preparing a coarse surface treated filler material product|
    WO2020212361A1|2019-04-17|2020-10-22|Unilever Plc|Oral care compositions|
    CA3139755A1|2019-07-08|2021-01-14|Omya Development Ag|Dry cosmetic and/or skin care composition|
    WO2021175658A1|2020-03-03|2021-09-10|Omya International Ag|Anticaking agent|
    WO2021239546A1|2020-05-29|2021-12-02|Omya International Ag|Use of a mineral blend as cosmetic agent for wet cosmetic compositions|
    RU2750548C1|2020-11-11|2021-06-29|Общество С Ограниченной Ответственностью "Научно - Исследовательский Институт Технологий Органической, Неорганической Химии И Биотехнологий"|Biodegradable abrasive cleaning powder|
    法律状态:
    2019-08-13| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-06-30| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-11-03| 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 12/12/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP13197113.7|2013-12-13|
    EP13197113.7A|EP2883573B2|2013-12-13|2013-12-13|Abrasive cleaning composition|
    PCT/EP2014/077550|WO2015086815A1|2013-12-13|2014-12-12|Abrasive cleaning composition|
    [返回顶部]