Non-sticky stable composition with texture transformation property

JP2024074054A5Pending Publication Date: 2025-11-27LOREAL SA
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Patent Information

Application Number
JP2022185108
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2022-11-18
Publication Date
2025-11-27

AI Technical Summary

Technical Problem

Existing cosmetic compositions struggle to provide both stability and a non-sticky or less sticky feel after texture transformation, such as changing from gel to liquid, while maintaining comfort during application.

Method used

A composition comprising cellulose particles with specific size and wetting properties, an associative polymer with acrylic and/or methacrylic units, and water, which stabilizes the texture transformation and reduces stickiness.

Benefits of technology

The composition achieves stable texture transformation with a non-sticky feel during and after application, maintaining comfort and stability under varying temperatures for extended periods.

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Abstract

To provide a stable composition that can provide no or hardly sticky feeling after application, in addition to texture transformation during the application.SOLUTION: The present invention relates to a composition comprising: (a) at least one cellulose particle; (b) at least one associative polymer comprising one or more acrylic and / or methacrylic units; and (c) water. The composition according to the present invention is stable and can provide no or little sticky feeling after application, in addition to texture transformation during application.SELECTED DRAWING: None
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Description

[Technical field]

[0001] The present invention relates to a composition, preferably a cosmetic composition, more preferably a skin cosmetic composition, which is stable and capable of providing texture transformation and non-stickiness. [Background technology]

[0002] Providing a pleasant texture to the skin is one of the important features of cosmetics, particularly skin care cosmetics.

[0003] In particular, texture transformation (e.g., change in texture from gel or cream to liquid, corresponding to a change in the physical properties of the composition, such as the breakdown of the composition's structure that may allow liquid to flow out of the composition) that can provide a refresh feel at the initial stage of application and a non-sticky or less sticky feel after application remains needed for customer satisfaction during use.

[0004] It should be noted that compositions that are unstable and whose structure easily collapses often provide a comfortable feeling during use, which means that it is difficult to provide both comfort during use and good stability at the same time.

[0005] So far, some techniques have been reported for gel-like compositions or emulsions that provide improved texture and stability. For example, WO2022 / 124385 discloses a stable composition that can provide texture transformation. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] WO2022 / 124385 [Patent Document 2] US 3 915 921 [Patent Document 3] US 4 509 949

Patent document 4

Patent document 5

Patent document 6

Patent document 7

Patent document 8

Non-licensed literature

[0007]

Non-licensed literature 1

Non-licensed Document 2

Non-licensed Document 4

[0008] However, stable compositions that can provide a non- or less sticky feel in addition to texture transformation have not yet been thoroughly investigated.

[0009] It is an object of the present invention to provide a stable composition that can provide a texture transformation during application as well as a non- or less sticky feel after application. [Means for solving the problem]

[0010] The above object of the present invention is to (a) at least one cellulose particle; (b) at least one associative polymer comprising one or more acrylic and / or methacrylic units, and (c) water This can be achieved by a composition, preferably a cosmetic composition, more preferably a skin cosmetic composition, comprising:

[0011] The (a) cellulose particles may have a particle size of 50 μm or less, preferably 30 μm or less, and more preferably 10 μm or less.

[0012] (a) Cellulose particles are an oil wet point of at least 40 ml / 100 g, preferably at least 50 ml / 100 g, more preferably at least 60 ml / 100 g; and a water wet point of at least 100 ml / 100 g, preferably at least 200 ml / 100 g, more preferably at least 300 ml / 100 g may have:

[0013] (a) The cellulose particles may have a water wetting point / oil wetting point ratio of 5 or less, preferably 4 or less, and more preferably 2 or less.

[0014] (a) The cellulose particles may be spherical.

[0015] The amount of (a) cellulose particles in the composition according to the present invention may be from 0.1% to 20% by mass, preferably from 0.5% to 15% by mass, and more preferably from 1% to 10% by mass, based on the total mass of the composition.

[0016] (b) The associative polymer is a polymer having one or more (meth)acrylic acids (C1-C 12 ) alkyl ester units.

[0017] (b) The associative polymer may include one or more units derived from a polyoxyalkylenated fatty alcohol.

[0018] The amount of the (b) associative polymer in the composition according to the present invention may be from 0.01% to 10% by mass, preferably from 0.05% to 5% by mass, and more preferably from 0.1% to 1% by mass, relative to the total mass of the composition.

[0019] The composition according to the present invention may be in the form of a gel, preferably having a viscosity of 10,000 mPa.s or more at 25°C, more preferably from 10,000 mPa.s to 200,000 mPa.s at 25°C.

[0020] The composition according to the present invention may further comprise (d) at least one oil.

[0021] (d) The oil may be selected from polar oils, preferably ester oils, artificial triglycerides, and mixtures thereof.

[0022] The amount of (d) oil in the composition according to the present invention may be from 1 mass % to 50 mass %, preferably from 5 mass % to 45 mass %, and more preferably from 10 mass % to 40 mass %, relative to the total mass of the composition.

[0023] The composition according to the present invention may be in the form of an O / W emulsion having a viscosity of preferably 10,000 mPa.s or more at 25°C, more preferably 10,000 mPa.s to 200,000 mPa.s at 25°C.

[0024] The present invention also relates to a cosmetic method for treating keratinous materials, comprising the step of applying to the keratinous materials a composition according to the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] After extensive investigation, the present inventors have discovered a novel approach to provide a stable composition that can provide a non-sticky or less sticky feel after application, in addition to texture transformation during application.

[0026] Thus, one aspect of the present invention is (a) at least one cellulose particle; (b) at least one associative polymer comprising one or more acrylic and / or methacrylic units, and (c) water A composition comprising:

[0027] The compositions according to the present invention are stable and can provide a texture transformation during application as well as a non-sticky or less sticky feel after application.

[0028] The composition according to the present invention is stable immediately after preparation of the composition and for a long time after preparation of the composition even under temperature changes from cold to hot. Therefore, the composition according to the present invention is stable over time and can be stored for a long period of time even under temperature changes that occur from winter to summer.

[0029] The compositions according to the present invention can provide a non-sticky or less sticky feel after application.

[0030] The term "sticky" is used herein to mean the property of imparting a sticky feeling to the skin.

[0031] The composition according to the invention can provide a texture transformation during application, preferably at the initial stage of application.Texture transformation means herein a change in texture from gel or cream to liquid, which corresponds to a change in the physical properties of the composition, such as, for example, the breakdown of the composition's structure, which can allow liquid to flow out of the composition.Texture transformation can provide a refreshing sensation.

[0032] Thus, the composition according to the invention is able to provide an excellent sensory sensation, especially on the skin, during and after application of the composition.

[0033] The composition according to the present invention will be described in more detail below.

[0034] [Cellulose particles] The composition according to the invention comprises (a) at least one type of cellulose particles having specific properties. When two or more types of cellulose particles are used, they may be the same or different.

[0035] (a) The particle size of the cellulose particles corresponds to the primary particle size. In addition, particle size herein means the average or mean particle size, which may be the volume-average particle size, which can be determined, for example, by a laser diffraction particle size analyzer.

[0036] The particle size of the (a) cellulose particles used in the present invention is not limited, but the particle size of the (a) cellulose particles is preferably 50 μm or less, more preferably 30 μm or less, more preferably 15 μm or less, even more preferably 10 μm or less, and particularly preferably 2 to 5 μm.

[0037] It is preferred that 90% by volume or more of the (a) cellulose particles used in the present invention have an average primary particle size in the range of 0.1 to 10 μm, preferably 0.5 to 8 μm, more preferably 1 to 7 μm. When 90% by volume or more of the (a) cellulose particles have an average primary particle size in the range of 1 to 7 μm, optical effects attributable to the particles can also be achieved.

[0038] The (a) cellulose particles used in the present invention may be in any particulate form.

[0039] The ratio of the longest diameter to the shortest diameter of the cellulose particles (a) used in the present invention is preferably in the range of 1.0-10, more preferably 1.0-5, and even more preferably 1.0-3.

[0040] It is more preferable that the (a) cellulose particles are spheres having a ratio of longest diameter to shortest diameter of 1.0 to 1.1.

[0041] The cellulose particles (a) used in the present invention are an oil wet point of at least 40 ml / 100 g, preferably at least 50 ml / 100 g, more preferably at least 60 ml / 100 g, more preferably at least 100 ml / 100 g, even more preferably at least 250 ml / 100 g, and preferably not more than 1500 ml / 100 g; and It may have a water wet point of at least 100 ml / 100 g, preferably at least 200 ml / 100 g, more preferably at least 300 ml / 100 g, even more preferably at least 350 ml / 100 g, and preferably no more than 1500 ml / 100 g.

[0042] As used herein, the term "wetting point of oil" refers to the quantity or amount of oil required to completely wet a target powder, particularly as can be appreciated by the formation of a paste with the target powder.

[0043] The wetting point of an oil can be determined by the following protocol. (1) 2 g of the target powder is kneaded on a glass plate using a spatula while adding oil, particularly a linear ester oil, such as isononyl isononanoate (WICKENOL 151 / ALZO). (2) Once the target powder is completely wetted and begins to form a paste, the mass of oil added is determined as the mass at the wetting point. (3) Calculate the oil wet point using the following formula: Oil wet point (ml / 100 g) = {(mass at wet point) / 2 g} x 100 / oil density.

[0044] Similarly, the term "wetting point of water" as used herein means the quantity or amount of water required to completely wet a target powder, particularly as can be appreciated by the formation of a paste with the target powder.

[0045] The water wetting point can be determined by the following protocol. (1) 2 g of the target powder is kneaded on a glass plate using a spatula while adding water having a density of 0.998 g / ml. (2) Once the target powder is completely wetted and begins to form a paste, the mass of water added is determined as the mass at the wetting point. (3) Calculate the wetting point of water from the following formula: Wetting point of water (ml / 100 g) = {(mass at wetting point) / 2 g} x 100 / density of water.

[0046] The water wetting point / oil wetting point ratio of the (a) cellulose particles used in the present invention is preferably 5 or less, preferably 4 or less, more preferably 3 or less, even more preferably 2 or less, and preferably 0.1 or more.

[0047] The (a) cellulose particles may be porous or non-porous, preferably porous.

[0048] (a) The porosity of cellulose particles is 0.05 m by the BET method. 2 / g~1,500m 2 / g, more preferably 0.1m 2 / g~1,000m 2 / g, and even more preferably 0.2m 2 / g~500m 2 The specific surface area may be characterized in terms of specific surface area in g / g.

[0049] In the present invention, the cellulose that can be used for the (a) cellulose particles is not limited by the type of cellulose, such as cellulose I, cellulose II, etc. As the cellulose that can be used as the material for the (a) cellulose particles for the present invention, type II cellulose is preferred.

[0050] (a) Cellulose particles, preferably spherical cellulose particles, can be prepared, for example, as follows. (1) A slurry of calcium carbonate as a coagulation inhibitor is added to an alkaline aqueous solution of a water-soluble anionic polymer and stirred. (2) Viscose is mixed with the aqueous solution obtained in (1) above to form a dispersion of viscose microparticles. (3) The dispersion of viscose microparticles obtained in (2) above is heated to aggregate the viscose in the dispersion, and neutralized with an acid to form cellulose microparticles. (4) The cellulose microparticles are separated from the mother liquor obtained in (3) above, and are washed and dried as necessary.

[0051] Viscose is a raw material for cellulose. It is preferable to use viscose having a gamma value of 30 to 100% by mass and an alkali concentration of 4 to 10% by mass. Examples of the water-soluble anionic polymer include sodium polyacrylate and sodium polystyrene sulfonate. The calcium carbonate is used to prevent aggregation of viscose fine particles in the dispersion and to reduce the particle size of the cellulose particles. Examples of calcium carbonate slurry include Tama Pearl TP-221GS, which is commercially available from Okutama Kogyo Co., Ltd. of Japan.

[0052] According to one embodiment, the (a) cellulose particles may or may not contain a cellulose derivative, which may be selected from cellulose esters and ethers.

[0053] The term "cellulose ester" is used herein above and below to mean a polymer consisting of an α(1-4) sequence of anhydroglucose rings which are partially or totally esterified, the esterification being obtained by reacting all or only a part of the free hydroxyl functions of said anhydroglucose rings with linear or branched carboxylic acids or carboxylic acid derivatives (acid chlorides or acid anhydrides) containing 1 to 4 carbon atoms.

[0054] Preferably, the cellulose esters are obtained by reaction of some of the free hydroxyl functions of said ring with a carboxylic acid containing from 1 to 4 carbon atoms.

[0055] Advantageously, the cellulose ester is chosen from cellulose acetate, cellulose propionate, cellulose butyrate, cellulose isobutyrate, cellulose acetobutyrate and cellulose acetopropionate, and mixtures thereof.

[0056] These cellulose esters may have a mass average molecular weight in the range of 3,000 to 1,000,000, preferably 10,000 to 500,000, and more preferably 15,000 to 300,000.

[0057] In the above and following text of this specification, the term "cellulose ether" means a polymer consisting of an α(1-4) sequence of partially etherified anhydroglucose rings, in which some of the free hydroxyl functions of said rings are replaced by -OR groups, R being preferably a linear or branched alkyl group containing 1 to 4 carbon atoms.

[0058] Thus, the cellulose ether is preferably selected from cellulose alkyl ethers having an alkyl group containing from 1 to 4 carbon atoms, such as cellulose methyl, propyl, isopropyl, butyl and isobutyl ethers.

[0059] These cellulose ethers may have a mass average molecular weight in the range of 3,000 to 1,000,000, preferably 10,000 to 500,000, and more preferably 15,000 to 300,000.

[0060] The (a) cellulose particles used in the present invention may include, for example, the following spherical cellulose particles commercially available from Daito Kasei Kogyo Co., Ltd., Japan: Cellulobeads USF with an average particle size of 4 μm (oil wet point is 296.0 ml / 100 g, water wet point is 400.8 ml / 100 g, and the ratio of water wet point / oil wet point is 1.4); Cellulobeads USF-X with an average particle size of 3-5 μm (oil wetting point is up to 80 ml / 100 g, water wetting point is 250 ml / 100 g, and the ratio of water wetting point / oil wetting point is 3.1 or less); Cellulobeads D-5 with an average particle size of 8-10 μm (oil wet point is up to 70 ml / 100 g, water wet point is 150 ml / 100 g, and the ratio of water wet point / oil wet point is less than 2.1); and Cellulobeads D-10 with an average particle size of 12-15 μm (oil wetting point is up to 60 ml / 100 g, water wetting point is 140 ml / 100 g, and the ratio of water wetting point / oil wetting point is less than 2.3).

[0061] The (a) cellulose particles used in the present invention may or may not be pre-coated.

[0062] In a particular embodiment, (a) cellulose particles are originally coated.The material of the original coating of particles is not limited, but organic materials such as mono- or di-carboxylic acid or its salt, amino acid, N-acyl amino acid, amide, silicone and modified silicone may be preferred.The organic materials may include potassium succinate, lauroyl lysine and acrylic modified silicone.

[0063] In other words, the cellulose particles (a) used in the present invention may be surface-treated. Examples of the surface treatment include the following: (1) Treatment with fluorine-based compounds, such as perfluoroalkyl phosphates, perfluoroalkyl silanes, perfluoropolyethers, fluorosilicones, and fluorinated silicone resins. (2) Silicone treatment, for example, treatment with methylhydrogenpolysiloxane, dimethylpolysiloxane, and tetramethyltetrahydrogencyclotetrasiloxane in the gas phase. (3) Pendant treatment, for example, a treatment in which alkyl chains are added after a vapor phase silicone treatment (4) Silane coupling agent treatment (5) Titanium coupling agent treatment (6) Aluminum coupling agent treatment (7) Oil treatment (8) N-acylated lysine treatment (9) Polyacrylic acid treatment (10) Metal soap treatment, e.g., with stearates or myristates (11) Acrylic resin treatment (12) Metal oxide treatment.

[0064] In combination with the above treatments, multiple surface treatments can be carried out.

[0065] The amount of (a) cellulose particles in the composition according to the present invention may be 0.1% by weight or more, preferably 0.5% by weight or more, more preferably 1% by weight or more, based on the total weight of the composition.

[0066] The amount of (a) cellulose particles in the composition according to the present invention may be up to 20% by weight, preferably up to 15% by weight, more preferably up to 10% by weight, relative to the total weight of the composition.

[0067] The amount of (a) cellulose particles in the composition according to the present invention may be from 0.1% to 20% by mass, preferably from 0.5% to 15% by mass, and more preferably from 1% to 10% by mass, based on the total mass of the composition.

[0068] [Associative polymers] The composition according to the invention comprises (b) at least one associative polymer comprising one or more acrylic and / or methacrylic units. When two or more such associative polymers are used, they may be the same or different.

[0069] (b) The associative polymer can function as a thickening agent.

[0070] For purposes of the present invention, the term "associative polymer" refers to homopolymers or copolymers that are capable of reversibly combining with each other or with other molecules in aqueous media.

[0071] The (b) associative polymer used in the present invention is preferably an associative copolymer of one or more acrylic and / or methacrylic units with other units.

[0072] (b) The associative polymer more particularly comprises at least one hydrophilic moiety and at least one hydrophobic moiety. For the purposes of the present invention, the term "hydrophobic group" means a group or polymer having a saturated or unsaturated, linear or branched, hydrocarbon-based chain containing at least 10 carbon atoms, preferably between 10 and 30 carbon atoms, in particular between 12 and 30 carbon atoms and more preferentially between 16 and 30 carbon atoms.

[0073] For the purposes of the present invention, (b) an associative copolymer comprising one or more acrylic and / or methacrylic units means that the polymer comprises at least one acrylic acid unit or at least one methacrylic acid unit or a mixture thereof. (b) The associative polymer may also comprise further units such as units formed by alkyl esters of acrylic or methacrylic acid, preferably acrylic acid, containing less than 6 carbon atoms, for example C1-C4 alkyl acrylates selected for example from methyl acrylate, ethyl acrylate and butyl acrylate (hereinafter referred to as "simple esters").

[0074] In a preferred embodiment of the present invention, the associative polymer (b) used in the present invention is one or more (meth)acrylic acids (C1-C 12 ) alkyl ester units, more preferably one or more (meth)acrylic acid (C1 to C6) alkyl ester units.

[0075] According to a particular embodiment, the (b) associative polymer used in the present invention comprises one or more acrylic acid units. According to a further embodiment, the (b) associative polymer used in the present invention comprises one or more methacrylic acid units. According to another embodiment, the (b) associative polymer used in the present invention comprises one or more acrylic acid units and one or more methacrylic acid units.

[0076] In certain embodiments, (b) the associative polymer may comprise other units derived from other monomers different from (meth)acrylic acid. For example, such monomers may be esters of ethylenically unsaturated hydrophobic monomers such as (meth)acrylic acid or itaconic acid, and esters of polyoxyalkylenated fatty alcohols. Preferably, the fatty alcohol portion of the ester monomer is a linear or branched, preferably linear, saturated or unsaturated, preferably saturated (C 12 ~C 30 ) fatty alcohols, in particular (C 16 ~C 26 ) fatty alcohols. The polyoxyalkylene chain of the ester monomer consists preferentially of ethylene oxide and / or propylene oxide units, and more particularly of ethylene oxide units. The number of oxyalkylene units generally ranges from 3 to 100, preferably from 7 to 50, more preferably from 12 to 30.

[0077] (b) Examples of associative polymers include, for example, the following: A product sold by LUBRIZOL under the trade name NOVETHIX L-10 POLYMER (registered trademark) (INCI name: Acrylates / Beheneth-25 Methacrylate Copolymer), A product sold by DOW CHEMICAL under the trade name Aculyn® 28 (INCI name: Acrylates / Beheneth-25 Methacrylate Copolymer); A product sold by DOW CHEMICAL under the trade name: Aculyn® 22 (INCI name: Acrylates / Steareth-20 Methacrylate Copolymer), A product sold by DOW CHEMICAL under the trade name: Aculyn® 88 (INCI name: Acrylates / Steareth-20 Methacrylate Crosspolymer), A product sold by AKZO NOBEL under the trade name: STRUCTURE® 2001 (INCI name: Acrylates / Steareth-20 Itaconate Copolymer), and Product name: STRUCTURE(R) 3001 (INCI name: Acrylates / Ceteth-20 Itaconate Copolymer) sold by AKZO NOBEL.

[0078] The (b) associative polymers that may be used in the present invention may also be chosen from anionic associative (co)polymers containing acrylic and / or methacrylic units.

[0079] The (meth)acrylic anionic associative (co)polymers that can be used in the present invention contain at least one hydrophilic unit of the unsaturated olefinic carboxylic acid type and (C 10 ~C 30 ) alkyl esters, etc.

[0080] More particularly, these (meth)acrylic associative (copolymers) preferably have hydrophilic units of the unsaturated olefinic carboxylic acid type of formula (I):

[0081] [ka]

[0082] [In the formula, R 1 represents H or CH3, i.e., an acrylic acid unit or a methacrylic acid unit. It corresponds to the monomer of unsaturated carboxylic acid type (C 10 ~C 30 ) The hydrophobic unit of the alkyl ester has the following formula (II):

[0083] [ka]

[0084] [In the formula, R 1 represents H or CH3 (i.e., an acrylate or methacrylate unit), R 2 is C 10 ~C30 , preferably C 12 ~C 22 indicates an alkyl group] The monomer is selected from those corresponding to the following formula:

[0085] of unsaturated carboxylic acid according to formula (II) 10 ~C 30 ) As alkyl esters, mention may more particularly be made of lauryl acrylate, stearyl acrylate, decyl acrylate, isodecyl acrylate and dodecyl acrylate, and the corresponding methacrylates, lauryl methacrylate, stearyl methacrylate, decyl methacrylate, isodecyl methacrylate and dodecyl methacrylate.

[0086] (Meth)acrylic associative (co)polymers of this type are described, for example, in patents US 3 915 921 and US 4 509 949 and are prepared according to them.

[0087] The (meth)acrylic associative (co)polymers that may be used in the present invention may more particularly denote polymers formed from a mixture of monomers that include: (i) acrylic acid and one or more compounds of formula (III):

[0088] [ka]

[0089] [In the formula, R 3 represents H or CH3, R 4 represents an alkyl group having 12 to 22 carbon atoms. esters of acrylic acid (hydrophilic units), 4% to 40% by weight of C 10 ~C 30 Consists of alkyl acrylate (hydrophobic unit) and 0 to 6% by mass of a cross-linkable polymerizable monomer, or 98% to 96% by mass of acrylic acid (hydrophilic unit), 1% to 4% by mass of C10 ~C 30 consisting of an alkyl acrylate (hydrophobic unit) and 0.1% to 0.6% by weight of a cross-linking polymerizable monomer, or (ii) A product formed essentially of acrylic acid and lauryl methacrylate, for example, 66% by weight of acrylic acid and 34% by weight of lauryl methacrylate.

[0090] In these embodiments of the invention, the term "crosslinker" refers to the group

[0091] [ka]

[0092] and at least one other polymerizable group, the unsaturated bonds of the monomers are not conjugated with each other. Crosslinkers that can be used in the present invention include polyallyl ethers such as polyallylsucrose and polyallylpentaerythritol, among others.

[0093] Of the (meth)acrylic associative (co)polymers mentioned above, the products sold under the trade names Pemulen TR1, Pemulen TR2, Carbopol 1382 by the company Goodrich, and even more preferably Pemulen TR1, and the product sold under the name Coatex SX by the company SEPC, are particularly preferred for the present invention.

[0094] Mention may also be made, as (meth)acrylic associative (co)polymer, of the methacrylic acid / methyl acrylate / ethoxylated alcohol of dimethyl-meth-isopropenylbenzyl isocyanate sold under the name Viscophobe DB 1000 by the company Amerchol.

[0095] Other (meth)acrylic associative (co)polymers that can be used in the present invention can also be sulfonic acid polymers that contain at least one (meth)acrylic acid monomer having a sulfonic acid group in free form or in partially or completely neutralized form and that contain at least one hydrophobic moiety.

[0096] The hydrophobic moieties present in the sulfonic acid polymers that may be used in the present invention preferably contain from 8 to 22 carbon atoms, more preferably from 8 to 18 carbon atoms, and more particularly from 12 to 18 carbon atoms.

[0097] Preferentially, these sulfonic acid polymers that may be used in the present invention are partially or completely neutralized by inorganic bases (sodium hydroxide, potassium hydroxide or aqueous ammonia) or by organic bases such as mono-, di- or triethanolamine, aminomethylpropanediol, N-methylglucamine, basic amino acids such as arginine and lysine, as well as by mixtures of these compounds.

[0098] These sulfonic acid polymers generally have a number average molecular weight in the range of 1,000 to 20,000,000 g / mol, preferably in the range of 20,000 to 5,000,000 g / mol, and even more preferably in the range of 100,000 to 1,500,000 g / mol.

[0099] The sulfonic acid polymers that can be used in the present invention can be crosslinked or non-crosslinked, with crosslinked polymers being preferred.

[0100] If crosslinked, the crosslinking agent may be selected from the polyolefinically unsaturated compounds commonly used to crosslink polymers obtained by free radical polymerization, such as divinylbenzene, diallyl ether, dipropylene glycol diallyl ether, polyglycol diallyl ether, triethylene glycol divinyl ether, hydroquinone diallyl ether, ethylene glycol diacrylate di(meth)acrylate or tetraethylene glycol diacrylate di(meth)acrylate, trimethylolpropane triacrylate, methylenebisacrylamide, methylenebismethacrylamide, triallylamine, triallyl cyanurate, diallyl maleate, tetraallylethylenediamine, tetraallyloxyethane, trimethylolpropane diallyl ether, allyl (meth)acrylate, allyl ethers of alcohols of the sugar series or other allyl or vinyl ethers of polyfunctional alcohols, and also allyl esters of phosphoric and / or vinylphosphonic acid derivatives, or mixtures of these compounds.

[0101] Methylene bisacrylamide, allyl methacrylate or trimethylolpropane triacrylate (TMPTA) are more particularly used.

[0102] The degree of crosslinking is generally in the range of 0.01 mol % to 10 mol %, more particularly 0.2 mol % to 2 mol %, relative to the polymer.

[0103] The (meth)acrylic monomers having sulfonic acid groups of the sulfonic acid polymers which can be used in the present invention are in particular (meth)acrylamides (C1-C 22 ) alkylsulfonic acid and N-(C1-C 22 ) Alkyl (meth)acrylamide (C1-C 22 ) alkylsulfonic acids, such as undecylacrylamido methanesulfonic acid, and its partially or fully neutralized forms.

[0104] (Meth)acrylamide (C1-C 22) Alkyl sulfonic acids, such as acrylamido methanesulfonic acid, acrylamido ethanesulfonic acid, acrylamido propanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, methacrylamide-2-methylpropanesulfonic acid, 2-acrylamido-n-butanesulfonic acid, 2-acrylamido-2,4,4-trimethylpentanesulfonic acid, 2-methacrylamido dodecylsulfonic acid or 2-acrylamido-2,6-dimethyl-3-heptanesulfonic acid, and their partially or completely neutralized forms, are more preferentially used. 2-Acrylamido-2-methylpropanesulfonic acid (AMPS), and also its partially or completely neutralized forms, are even more particularly used.

[0105] The (meth)acrylic acid associative thickener that can be used in the present invention is a C6-C 22 n-Monoalkylamine or C6-C 22 They may especially be chosen from random amphiphilic AMPS polymers modified by reaction with di-n-alkylamines, such as those described in patent application WO 00 / 31154, which forms an integral part of the disclosure.

[0106] These polymers may also contain other ethylenically unsaturated hydrophilic monomers, chosen for example from (meth)acrylic acid, their β-substituted alkyl derivatives or their esters obtained with monoalcohols or with mono- or polyalkylene glycols, (meth)acrylamide, vinylpyrrolidone, maleic anhydride, itaconic acid or maleic acid, or mixtures of these compounds.

[0107] (Meth)acrylic associative thickeners bearing sulfonic acid groups which may be particularly preferably used in the present invention are preferably chosen from amphiphilic copolymers of AMPS and at least one ethylenically unsaturated hydrophobic monomer comprising at least one hydrophobic moiety containing from 8 to 50 carbon atoms, more preferably from 8 to 22 carbon atoms, even more preferably from 8 to 18 carbon atoms and more particularly from 12 to 18 carbon atoms.

[0108] These same copolymers may also contain one or more ethylenically unsaturated monomers that do not contain a fatty chain, such as (meth)acrylic acid, their β-substituted alkyl derivatives or their esters obtained with monoalcohols or with mono- or polyalkylene glycols, (meth)acrylamide, vinylpyrrolidone, maleic anhydride, itaconic acid or maleic acid, or mixtures of these compounds.

[0109] These copolymers are described, inter alia, in patent application EP-A-750 899, patent US 5 089 578 and in the following publications by Yotaro Morishima: - Self-assembling amphiphilic polyelectrolytes and their nanostructures, Chinese Journal of Polymer Science, Vol. 18, No. 40 (2000), pp. 323-336; - Micelle formation of random copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and a nonionic surfactant macromonomer in water as studied by fluorescence and dynamic light scattering, Macromolecules, Vol. 33, No. 10 (2000), pp. 3694-3704; - Solution properties of micelle networks formed by nonionic moieties covalently bound to a polyelectrolyte: salt effects on rheological behavior - Langmuir, 2000, Vol. 16, No. 12, pp. 5324-5332; - Stimuli responsive amphiphilic copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and associative macromonomers, Polym. Preprint, Div. Polym. Chem. 1999, 40(2), paragraphs 220-221.

[0110] The ethylenically unsaturated hydrophobic monomer of these particular copolymers has the following formula (IV):

[0111] [ka]

[0112] [In the formula, R 5 and R 7 may be the same or different and represent a hydrogen atom or a linear or branched C1-C6 alkyl group (preferably methyl), Y represents O or NH, R 6 represents a hydrophobic hydrocarbon-based group containing at least 8 to 50 carbon atoms, more preferentially 8 to 22 carbon atoms, even more preferentially 6 to 18 carbon atoms, more particularly 12 to 18 carbon atoms, and x represents the number of moles of alkylene oxide, which ranges from 0 to 100. Preferably, the copolymer is selected from the group consisting of acrylates and acrylamides of the formula:

[0113] R 6 The group is a linear C6-C 18 Alkyl groups (e.g., n-hexyl, n-octyl, n-decyl, n-hexadecyl, n-dodecyl) or branched or cyclic C6-C 18 Alkyl groups (e.g., cyclododecane (C 12 ) or adamantane (C 10 ));C6~C 18 perfluoroalkyl groups (e.g., groups of the formula -(CH2)2-(CF2)9-CF3); cholesteryl groups (C 27) or cholesterol ester residues, for example cholesteryloxyhexanoate groups; aromatic polycyclic groups such as naphthalene or pyrene. Of these groups, more particularly preferred are straight-chain alkyl groups, more particularly the n-dodecyl group.

[0114] According to a particularly preferred embodiment of the invention, the monomer of formula (IV) comprises at least one alkylene oxide unit (x≧1), preferably a polyoxyalkylene chain. The polyoxyalkylene chain is preferentially composed of ethylene oxide and / or propylene oxide units, and more particularly of ethylene oxide units. The number of oxyalkylene units generally ranges from 3 to 100, more preferably from 3 to 50, even more preferably from 7 to 25.

[0115] Among these polymers, mention may be made of: - 15% to 60% by weight of AMPS units and 40% to 85% by weight of (C8 to C 16 ) alkyl (meth)acrylamide unit or (C8-C 16 ) copolymers, which may or may not be crosslinked and which may or may not be neutralized, containing alkyl (meth)acrylate units, such as those described in patent application EP-A-750 899; - 10 mol% to 90 mol% acrylamide units, 0.1 mol% to 10 mol% AMPS units, and 5 mol% to 80 mol% n-(C6 to C 18 ) Terpolymers containing alkylacrylamide units, such as those described in patent US Pat. No. 5,089,578.

[0116] Mention may also be made of fully neutralized copolymers of AMPS and dodecyl methacrylate, as well as crosslinked and non-crosslinked copolymers of AMPS and n-dodecyl methacrylamide, such as those described in the Morishima paper mentioned above.

[0117] The following formula (V):

[0118] [ka]

[0119] [where, X + is a proton, an alkali metal cation, an alkaline earth metal cation, or an ammonium ion. and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) units, Formula (VI):

[0120] [ka]

[0121] [In the formula, x represents an integer ranging from 3 to 100, preferably from 5 to 80, and more preferably from 7 to 25; R 5 has the same meaning as given in formula (IV) above, R 8 is a linear or branched C6-C 22 , and more preferentially C 10 ~C 22 indicates alkyl] and a copolymer composed of the units:

[0122] A preferred polymer is where x=25 and R 5 indicates methyl, R 8 represents n-dodecyl, and these are described in the Morishima paper mentioned above.

[0123] Further, in formula (IV), x=20 to 25, and R 5 indicates methyl, R 8 C 12 ~C 24 Particularly preferred is the use of monomers which represent an alkyl group, preferably, for example, a lauryl, myristyl, palmityl, stearyl or behenyl group, in particular where x=20 to 25 and R 5 indicates methyl, R 8 is a stearyl group or a behenyl group, etc. 16 ~C24 The use of monomers of formula (IV) which represent alkyl chains is particularly preferred.

[0124] X + More particularly preferred are polymers in which represents sodium or ammonium.

[0125] The amount of (b) associative polymer in the composition according to the invention may be 0.01% by weight or more, preferably 0.05% by weight or more, more preferably 0.1% by weight or more, relative to the total weight of the composition.

[0126] The amount of (b) associative polymer in the composition according to the invention may be up to 10% by weight, preferably up to 5% by weight, more preferably up to 1% by weight, relative to the total weight of the composition.

[0127] The amount of the (b) associative polymer in the composition according to the present invention may be from 0.01% to 10% by mass, preferably from 0.05% to 5% by mass, and more preferably from 0.1% to 1% by mass, relative to the total mass of the composition.

[0128] [water] The composition according to the present invention comprises (c) water.

[0129] The amount of (c) water in the composition according to the present invention may be 35% by weight or more, preferably 40% by weight or more, more preferably 45% by weight or more, based on the total weight of the composition.

[0130] On the other hand, the amount of (c) water in the composition according to the present invention may be 95% by mass or less, preferably 90% by mass or less, more preferably 85% by mass or less, based on the total mass of the composition.

[0131] The amount of (c) water in the composition according to the present invention may be in the range of 35% by mass to 95% by mass, preferably 40% by mass to 90% by mass, and more preferably 45% by mass to 85% by mass, based on the total mass of the composition.

[0132] [oil] The composition according to the invention may comprise (d) at least one oil. When two or more oils are used, these may be the same or different.

[0133] In this specification, "oil" means a fatty compound or substance that is in the form of a liquid or paste (non-solid) at atmospheric pressure (760 mmHg) and room temperature (25°C). As oils, those commonly used in cosmetics can be used, alone or in combination. These oils can be volatile or non-volatile.

[0134] (d) The oil may be a non-polar oil, such as a hydrocarbon oil, a silicone oil, or the like; a polar oil, such as a vegetable oil or an animal oil, and an ester oil or an ether oil; or a mixture thereof.

[0135] (d) The oil may be selected from the group consisting of oils of vegetable or animal origin, synthetic oils, silicone oils, hydrocarbon oils, and fatty alcohols.

[0136] Examples of vegetable oils include, for example, linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, camellia oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

[0137] Examples of animal oils include, for example, squalene and squalane.

[0138] Examples of synthetic oils include alkane oils such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

[0139] The ester oil is preferably a saturated or unsaturated, linear or branched C1-C 26 Aliphatic mono- or poly-acids and saturated or unsaturated, linear or branched C1-C 26They are liquid esters with aliphatic monohydric or polyhydric alcohols, the total number of carbon atoms in the ester being 10 or more.

[0140] Preferably, in esters of monohydric alcohols, at least one of the alcohol and the acid from which the ester is derived is branched.

[0141] Among the monoesters of monovalent acids and monohydric alcohols, mention may be made of ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate and isostearyl neopentanoate.

[0142] C4~C 22 Dicarboxylic or tricarboxylic acids and C1-C 22 Esters with alcohols, and mono-, di- or tricarboxylic acids and non-sugar C4-C 26 Esters with dihydroxy, trihydroxy, tetrahydroxy or pentahydroxy alcohols may also be used.

[0143] Mention may especially be made of diethyl sebacate, isopropyl lauroyl sarcosine, diisopropyl sebacate, bis(2-ethylhexyl) sebacate, diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, bis(2-ethylhexyl) adipate, diisostearyl adipate, bis(2-ethylhexyl) maleate, triisopropyl citrate, triisocetyl citrate, triisostearyl citrate, glyceryl trilactate, glyceryl trioctanoate, trioctyldodecyl citrate, trioleyl citrate, neopentyl glycol diheptanoate, diethylene glycol diisononanoate.

[0144] As ester oil, C6-C 30 , preferably C 12 ~C22 Sugar esters and diesters of fatty acids can be used. It is recalled that the term "sugar" means an oxygen-bearing hydrocarbon-based compound containing at least four carbon atoms and containing several alcohol functional groups, with or without aldehyde or ketone functional groups. These sugars may be monosaccharides, oligosaccharides, or polysaccharides.

[0145] Examples of suitable sugars that may be mentioned include sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose, as well as derivatives thereof, in particular alkyl derivatives, such as methyl derivatives, for example methylglucose.

[0146] Sugar esters of fatty acids are in particular those which are composed of the aforementioned sugars and linear or branched, saturated or unsaturated C6-C 30 , preferably C 12 ~C 22 The esters or mixtures of esters with fatty acids may be selected from the group consisting of: When these compounds are unsaturated, they may have 1 to 3 conjugated or non-conjugated carbon-carbon double bonds.

[0147] The esters according to this variant can also be chosen from monoesters, diesters, triesters, tetraesters and polyesters, and mixtures thereof.

[0148] These esters may be, for example, oleate, laurate, palmitate, myristic acid, behenic acid, coconut acid, stearate, linoleate, linolenic acid, capric acid and arachidic acid esters, or mixtures thereof, such as, in particular, the mixed esters of oleopalmitic acid, oleostearic acid and palmitostearic acid, and pentaerythrityl tetraethylhexanoate.

[0149] More particularly, mono- and diesters are used, especially the mono- or dioleate, stearates, behenates, oleopalmitates, linoleates, linolenates, and oleostearates of sucrose, glucose, or methylglucose.

[0150] An example that may be mentioned is the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.

[0151] Examples of preferred ester oils include diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl caprylate / caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylate carbonate, and the like. Examples of suitable oleic acid salts include glyceryl tri(2-ethylhexanoate), isopropyl lauroyl sarcosine, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrityl tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

[0152] Examples of artificial triglycerides include capryl caprylyl glyceride, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, capric / caprylic triglyceride, and capric / caprylic / linolenic triglyceride.

[0153] Examples of silicone oils include linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and the like; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and the like; and mixtures thereof.

[0154] Preferably, the silicone oil is chosen from polydialkylsiloxane liquids, especially polydimethylsiloxane (PDMS) liquids, and polyorganosiloxane liquids containing at least one aryl group.

[0155] These silicone oils may also be organically modified. The organically modified silicones that may be used in the present invention are silicone oils as defined above and which contain in their structure one or more organic functional groups that are linked via a hydrocarbon-based group.

[0156] Organopolysiloxanes are more fully defined in Walter Noll, Chemistry and Technology of Silicones, Academic Press, 1968. They may be volatile or nonvolatile.

[0157] If volatile, the silicones are more particularly chosen from those having a boiling point between 60° C. and 260° C., and even more particularly chosen from: (i) cyclic polydialkylsiloxanes containing 3 to 7, preferably 4 to 5, silicon atoms. These are, for example, octamethylcyclotetrasiloxane, sold in particular under the name Volatile Silicone® 7207 by Union Carbide or Silbione® 70045 V2 by Rhodia, Volatile Silicone® 7158 by Union Carbide, decamethylcyclopentasiloxane, sold under the name Silbione® 70045 V5 by Rhodia, and dodecamethylcyclopentasiloxane, sold under the name Silsoft 1217 by Momentive Performance Materials, and mixtures thereof. Cyclocopolymers of the dimethylsiloxane / methylalkylsiloxane type, for example of the formula:

[0158] [ka]

[0159] Mention may also be made of Silicone Volatile® FZ 3109 sold by the company Union Carbide.

[0160] Also included are mixtures of cyclic polydialkylsiloxanes and organosilicon compounds, such as a 50 / 50 mixture of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol, and a mixture of octamethylcyclotetrasiloxane and oxy-1,1'-bis(2,2,2',2',3,3'-hexatrimethylsilyloxy)neopentane. (ii) Contains 2 to 9 silicon atoms and has a density of 5 × 10 at 25 °C -6 m 2Linear volatile polydialkylsiloxanes with a viscosity of less than 100 / s. An example is decamethyltetrasiloxane, sold in particular under the name SH 200 by Toray Silicone. Silicones belonging to this class are also described in the article published in Cosmetics and Toiletries, Vol. 91, January 1976, pages 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of the silicones is measured at 25°C according to ASTM Standard 445 Appendix C.

[0161] Non-volatile polydialkylsiloxanes may also be used. These non-volatile silicones are more particularly chosen from the polydialkylsiloxanes, among which mention may be made mainly of the polydimethylsiloxanes containing trimethylsilyl end groups.

[0162] Among these polydialkylsiloxanes, mention may be made, in a non-limiting manner, of the following commercial products: the Silbione® oils of the 47 and 70 047 series or Mirasil® oils sold by the company Rhodia, such as for example the 70 047 V 500 000 oil; the Mirasil® series of oils sold by the company Rhodia; - Dow Corning 200 series oils, e.g. 60,000mm viscosity 2 / s DC 200, and - Viscasil® oils manufactured by General Electric and certain oils of the SF series manufactured by General Electric (SF 96, SF 18).

[0163] Mention may also be made of polydimethylsiloxanes containing dimethylsilanol end groups, known under the name dimethiconol (CTFA), such as the 48 series oils from Rhodia.

[0164] Among the silicones containing aryl groups, mention may be made of the polydiarylsiloxanes, especially polydiphenylsiloxanes, and polyalkylarylsiloxanes, such as phenylsilicone oils.

[0165] Phenyl silicone oils have the formula:

[0166] [ka]

[0167] [In the formula, R1~R 10 are each independently a saturated or unsaturated, linear, cyclic or branched C1-C 30 Hydrocarbon group, preferably C1-C 12 a hydrocarbon group, more preferably a C1-C6 hydrocarbon group, in particular a methyl, ethyl, propyl or butyl group; m, n, p, and q each independently represent an integer of 0 to 900, inclusive, preferably 0 to 500, inclusive, and more preferably 0 to 100, inclusive; However, the sum of n+m+q is not 0. The phenyl silicones may be selected from the group consisting of phenyl silicones.

[0168] Examples that may be mentioned are products sold under the following names: - Rhodia Silbione® oils, series 70 641; Rhodorsil® 70 633 and 763 series oils from Rhodia, - Dow Corning oil Dow Corning 556 Cosmetic Grade Fluid, - PK series silicones from Bayer, e.g. product PK20, - Certain oils of the SF series manufactured by General Electric, such as SF 1023, SF 1154, SF 1250 and SF 1265.

[0169] As the phenyl silicone oil, phenyl trimethicone (wherein R1 to R 10 is methyl, p, q and n=0, and m=1).

[0170] The hydrocarbon oil may be selected from: - Linear or branched, optionally cyclic, C5-C 19 Alkanes. Examples that may be mentioned include hexane, undecane, dodecane, tridecane and isoparaffins, such as isohexadecane, isododecane and isodecane. - Linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petroleum jelly, polydecenes and hydrogenated polyisobutenes, such as Parleam®, and squalane.

[0171] Preferred examples of hydrocarbon oils include, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oils (e.g., liquid paraffin), paraffin, petrolatum or petrolatum, and naphthalene; hydrogenated polyisobutene, isoeicosane, and decene / butene copolymers; and mixtures thereof.

[0172] The term "fatty" in fatty alcohol refers to the inclusion of a relatively large number of carbon atoms. Thus, alcohols having 4 or more, preferably 6 or more, more preferably 12 or more carbon atoms are included within the scope of fatty alcohol. Fatty alcohols may be saturated or unsaturated. Fatty alcohols may be linear or branched.

[0173] The fatty alcohol may have the structure R-OH, where R is selected from saturated and unsaturated, linear and branched groups containing from 4 to 40 carbon atoms, preferably from 6 to 30 carbon atoms, and more preferably from 12 to 20 carbon atoms. In at least one embodiment, R is selected from C 12 ~C 20 Alkyl group and C 12 ~C 20alkenyl groups, R may be unsubstituted or substituted with at least one hydroxyl group.

[0174] Examples of fatty alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, oleyl alcohol, linoleyl alcohol, palmitoleyl alcohol, arachidonyl alcohol, erucyl alcohol, and mixtures thereof.

[0175] Preferably, the fatty alcohol is a saturated fatty alcohol.

[0176] Thus, fatty alcohols are linear or branched, saturated or unsaturated C6-C 30 Alcohols, preferably linear or branched, saturated C6-C 30 Alcohols, more preferably linear or branched, saturated C 12 ~C 20 Alcohol can be selected.

[0177] The term "saturated fatty alcohol" as used herein means an alcohol having a long aliphatic saturated carbon chain. A saturated fatty alcohol is any linear or branched, saturated, C6-C 30 It is preferably selected from linear or branched saturated C6-C fatty alcohols. 30 Among fatty alcohols, linear or branched saturated C 12 ~C 20 Fatty alcohols may be preferably used. Any linear or branched saturated C 16 ~C 20 Fatty alcohols are more preferably used. 16 ~C 20 Fatty alcohols may even more preferably be used.

[0178] Examples of saturated fatty alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof. In one embodiment, cetyl alcohol, stearyl alcohol, octyldodecanol, hexyldecanol, or mixtures thereof (e.g., cetearyl alcohol), and behenyl alcohol can be used as the saturated fatty alcohol.

[0179] According to at least one embodiment, the fatty alcohols used in the compositions according to the invention are preferably chosen from cetyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof.

[0180] It is also preferred that the (d) oil is selected from oils having a molecular weight of less than 600 g / mol.

[0181] Preferably, the (d) oil has a low molecular weight, such as less than 600 g / mol, and is a short chain hydrocarbon (C1 to C 12 ), ester oils (e.g., isopropyl lauroyl sarcosine, isopropyl myristate, isopropyl palmitate, isononyl isononanoate, and ethylhexyl palmitate), silicone oils (e.g., volatile silicones such as cyclohexasiloxane), hydrocarbon oils (e.g., isododecane, isohexadecane, and squalane), branched and / or unsaturated fatty alcohols (C 12 ~C 30 ) type oils, such as octyldodecanol and oleyl alcohol, and ether oils such as dicaprylyl ether.

[0182] (d) The oil may be selected from polar oils, preferably from ester oils, more preferably from ethylhexyl palmitate, preferably from artificial triglycerides, more preferably from caprylic / capric triglyceride.

[0183] The amount of (d) oil in the composition according to the present invention may be 1% by mass or more, preferably 5% by mass or more, more preferably 10% by mass or more, based on the total mass of the composition.

[0184] On the other hand, the amount of (d) oil in the composition according to the present invention may be 50% by mass or less, preferably 45% by mass or less, and more preferably 40% by mass or less, based on the total mass of the composition.

[0185] The amount of (d) oil in the composition according to the present invention may be in the range of 1 mass % to 50 mass %, preferably 5 mass % to 45 mass %, and more preferably 10 mass % to 40 mass %, relative to the total mass of the composition.

[0186] [Additional Optional Ingredients] The compositions according to the invention may also contain effective amounts of additional optional ingredients otherwise previously known in cosmetic compositions, such as anionic, cationic or amphoteric surfactants; organic powders different from component (a); thickeners different from component (b); sequestering agents such as EDTA and trisodium ethylenediamine disuccinate; preservatives; vitamins or provitamins, for example panthenol; fragrances; plant extracts, etc.

[0187] The compositions according to the invention may comprise one or more cosmetically acceptable organic solvents, which may be alcohols, in particular monohydric alcohols such as ethyl alcohol, isopropyl alcohol, benzyl alcohol, phenoxyethanol and phenylethyl alcohol; diols, such as ethylene glycol, caprylyl glycol, propylene glycol, dipropylene glycol and butylene glycol; other polyols, such as glycerol, sugars and sugar alcohols; and ethers, such as ethylene glycol monomethyl, monoethyl and monobutyl ether, propylene glycol monomethyl, monoethyl and monobutyl ether, and butylene glycol monomethyl, monoethyl and monobutyl ether.

[0188] The organic water soluble solvent may be present in an amount ranging from 0.01% by weight or more, preferably from 0.1% by weight or more, more preferably from 1% by weight or more, based on the total weight of the composition.

[0189] The organic water soluble solvent may be present in an amount in the range of up to 20% by weight, preferably up to 15% by weight, more preferably up to 10% by weight, based on the total weight of the composition.

[0190] The organic water-soluble solvent may be present in an amount ranging from 0.01% to 20% by weight, preferably from 0.1% to 15% by weight, and more preferably from 1% to 10% by weight, based on the total weight of the composition.

[0191] [Preparation and characteristics] The composition according to the present invention can be prepared by mixing the essential components described above and, if necessary, the optional components described above.

[0192] The method and means of mixing the above essential components and optional components are not limited. Any conventional method and means can be used to mix the above essential components and optional components to prepare the composition according to the present invention. Conventional methods and means can include homogenizers, such as turbine mixers.

[0193] [form] The compositions according to the invention may be in a variety of forms.

[0194] Because the composition according to the present invention comprises (c) water, the composition according to the present invention may be a fluid, such as, for example, an aqueous solution. The appearance of the composition according to the present invention may be a gel, because the (b) associative polymer can function as a thickener.

[0195] When the composition according to the present invention contains (d) oil, it may be in the form of an O / W emulsion. The appearance of the composition according to the present invention in the form of an O / W emulsion may be a paste or cream.

[0196] The composition according to the invention in the form of an O / W emulsion comprises a dispersed fatty phase, for example an oily phase, dispersed in a continuous aqueous phase. The dispersed fatty phase may be in the form of oil droplets in the aqueous phase. The composition according to the invention is preferably in the form of an O / W gel emulsion or an O / W gel dispersion.

[0197] An O / W type constitution or structure consisting of a fatty phase dispersed in an aqueous phase has an aqueous phase on the outside, therefore, a composition according to the present invention having an O / W type constitution or structure can provide a comfortable sensation during use due to the immediate sensation of freshness that the aqueous phase can provide.

[0198] The composition according to the present invention preferably has a viscosity of 10,000 mPa·s or more, more preferably 15,000 mPa·s or more, and even more preferably 20,000 mPa·s or more. The viscosity can be measured at 25° C. using a Brookfield viscometer (e.g., rotor: No. 4, rotation speed: 6 rpm, measurement time: 1 minute).

[0199] Compositions according to the invention also preferably have a viscosity at 25° C. of 200,000 mPa·s or less, more preferably 150,000 mPa·s or less, even more preferably 100,000 mPa·s or less.

[0200] It may be preferred that the composition according to the present invention has a viscosity at 25° C. of from 10,000 mPa·s to 200,000 mPa·s, more preferably from 15,000 mPa·s to 150,000 mPa·s, even more preferably from 20,000 mPa·s to 100,000 mPa·s.

[0201] [Method and Use] The composition according to the invention is preferably a cosmetic composition, more preferably a cosmetic composition for keratinous materials such as the skin.

[0202] The compositions according to the invention can be used for non-therapeutic methods, such as cosmetic methods for treating keratinous materials, such as the skin, hair, mucous membranes, nails, eyelashes, eyebrows and / or scalp, by application to the keratinous materials.

[0203] The present invention therefore also relates to a cosmetic method for treating keratinous materials, preferably the skin, comprising the step of applying to the keratinous materials a composition according to the invention.

[0204] The present invention may also relate to the use of a composition according to the invention as or in a cosmetic preparation, such as a care product for the skin of the body and / or the face, and / or the mucous membranes, and / or the scalp, and / or the hair, and / or the nails, and / or the eyelashes, and / or the eyebrows.

[0205] In other words, the composition according to the present invention can be used as a cosmetic as it is. Alternatively, the composition according to the present invention can be used as one component of a cosmetic. For example, the composition according to the present invention can be added to or combined with any other component to form a cosmetic.

[0206] The care products may be lotions, creams and the like.

[0207] The present invention also relates to a method for producing ... cellulose particle comprising the steps of: (a) at least one type of cellulose particle; (b) at least one associative polymer comprising one or more acrylic and / or methacrylic units, and (c) water Use in a composition comprising It may also concern use for causing a texture transformation of the composition when applied to keratinous materials such as the skin, preferably at the initial stage of application, and / or for reducing the stickiness of the keratinous materials after application.

[0208] The present invention relates to a polymerizable composition comprising (b) at least one associative polymer comprising one or more acrylic and / or methacrylic units, (a) at least one cellulose particle; (c) water Use in a composition comprising It may also concern the use for causing a texture transformation of the composition and / or for stabilising the composition when applied to a keratinous material such as the skin, preferably at the initial stage of application.

[0209] The explanation regarding the components (a) to (c) in the composition according to the present invention can also be applied to the explanation of the above-mentioned use according to the present invention.

[0210] The present invention also relates to a method for producing ... cellulose particle comprising the steps of: (a) at least one type of cellulose particle; (b) at least one associative polymer comprising one or more acrylic and / or methacrylic units; (c) Water, and (d) at least one oil Use in a composition comprising It may also relate to use for inducing a texture transformation of the composition when applied to keratinous materials such as the skin, preferably at the initial stage of application, and / or for stabilizing the composition and / or for reducing the stickiness of the keratinous materials after application.

[0211] The present invention relates to a polymerizable composition comprising (b) at least one associative polymer comprising one or more acrylic and / or methacrylic units, (a) at least one cellulose particle; (c) water, and (d) at least one oil Use in a composition comprising It may also concern the use for causing a texture transformation of the composition and / or for stabilising the composition when applied to a keratinous material such as the skin, preferably at the initial stage of application.

[0212] The explanations regarding the components (a) to (d) in the composition according to the present invention can also be applied to the explanations regarding the above-mentioned uses according to the present invention. EXAMPLES

[0213] The present invention will now be described in more detail by examples, which should not be construed as limiting the scope of the present invention.

[0214] (Example 1 and Comparative Examples 1 to 6) The following compositions in the form of aqueous gels according to Example 1 and Comparative Examples 1 to 6 shown in Table 1 were prepared by mixing the components shown in Table 1 below. (1) mixing the ingredients in column A of Table 1 at 75-80°C to form a homogeneous mixture of phase A; (2) adding the ingredients of column B of Table 1 to the mixture of phase A, followed by homogenization thereof to obtain a homogenous mixture (phase A and phase B); (3) adding the ingredients in column C of Table 1 to the mixture of phases A and B, followed by homogenization to obtain a uniform mixture (phases A, B, and C), and cooling the mixture to room temperature (25° C.); and (4) Adding the ingredients from column D of Table 1 to the mixture of phases A, B, and C, followed by homogenization to obtain a uniform mixture (phases A, B, C, and D).

[0215] All of the component amounts shown in Table 1 are based on "mass %" of the raw materials.

[0216] [Table 1A]

[0217] [Table 1B]

[0218] The properties of component (a) (cellulose particles) in Table 1 are shown in Table 2.

[0219] [Table 2]

[0220] (Oil Wetting Point) The wetting point of the oil was determined by the following protocol. (1) 2 g of the powdered component was kneaded on a glass plate using a spatula while adding isononyl isononanoate having a viscosity of 9 cP and a density of 0.853 g / ml at 25° C. (2) Once the powdered ingredients were completely wetted and started to form a paste, the mass of oil added was determined as the mass at the wetting point. (3) The wetting point of the oil was calculated from the following formula: Wetting point of oil (ml / 100 g) = {(mass at the wetting point) / 2 g} × 100 / density of oil.

[0221] (Wetting point of water) The water wetting point was determined by the following protocol. (1) 2 g of powdered ingredients were kneaded on a glass plate using a spatula while adding water having a density of 0.998 g / ml. (2) Once the powdered ingredients were completely wetted and started to form a paste, the mass of water added was determined as the mass at the wetting point. (3) The wetting point of water was calculated from the following formula: Wetting point of water (ml / 100 g) = {(mass at wetting point) / 2 g} x 100 / density of water.

[0222] [evaluation] (viscosity) The viscosity of each of the compositions of Example 1 and Comparative Examples 1 to 6 was measured at room temperature (25° C.) using a Brookfield viscometer under the conditions of a rotor No. 4, a rotation speed of 6 rpm, and a measurement time of 1 minute.

[0223] The results are shown in Table 1.

[0224] (Texture conversion) Five expert judges evaluated the "texture transformation" during application of the compositions according to Example 1 and Comparative Examples 1-6. Each judge took each composition and applied it in a circular pattern on his or her face. The judges evaluated when the texture transformation (from gel to liquid) occurred, grading it from 1 (poor) to 5 (very good), and then classified it into the following four categories based on the average of the scores: Very good: 5.0~4.0 (texture transformation is clearly felt at the early stage of application) Good: 3.9-3.0 (texture transformation is noticeable at the early stages of application) Poor: 2.9~2.0 (texture transformation is difficult to feel at the initial stage of application) Very poor: 1.9-1.0 (no texture transformation felt at the beginning of application)

[0225] The results are shown in Table 1.

[0226] (Non-sticky feel) Five expert judges evaluated the "non-sticky feel" after application of the compositions according to Example 1 and Comparative Examples 1 to 6. Each judge took each composition, applied it to their face, evaluated the non-sticky feel after application, and ranked it from 1 (poor) to 5 (very good), and then classified it into the following four categories based on the average of the scores: Very good: 5.0-4.0 (no sticky feeling after application) Good: 3.9-3.0 (not sticky after application) Poor: 2.9-2.0 (sticky feeling after application) Very poor: 1.9-1.0 (stickiness is clearly felt after application)

[0227] The results are shown in Table 1.

[0228] (stability) Each composition according to Example 1 and Comparative Examples 1 to 6 was filled into a glass bottle and kept for two months under temperature variations of 4° C., 25° C., 37° C., and 45° C. Each sample was then inspected for the degree of change (appearance, color, and odor) and evaluated according to the following criteria: Very Good: Nearly the same condition as when manufactured. Good: Little change in appearance, color, or odor was observed. Poor: Visible changes in appearance, color, and odor were observed. Very poor: Significant changes in appearance, color, and odor were observed.

[0229] The results are shown in Table 1.

[0230] (Summary) As is evident from Table 1, the composition in the form of an aqueous gel according to the present invention (Example 1) can provide excellent cosmetic benefits in terms of texture transformation, non-sticky feel, and stability under temperature changes for 2 months, which can be attributed to the combination of components (a) and (b) in the presence of component (c). Thus, the composition according to the present invention can provide, in particular, excellent feel and long-term stability under temperature changes.

[0231] On the other hand, the compositions according to Comparative Examples 1 to 3, which did not contain component (a) (cellulose particles), exhibited poor texture transformation and stickiness.

[0232] The composition according to Comparative Example 4, which contained silica particles instead of component (a), showed poor texture transformation.

[0233] The composition according to Comparative Example 5, which did not contain component (b) (Acrylates / Beheneth-25 Methacrylate Copolymer), was unable to thicken and showed poor texture transformation.

[0234] The composition according to Comparative Example 6, which contained another thickener instead of component (b), showed poor texture transformation.

[0235] (Example 2 and Comparative Examples 7 to 10) The following compositions in the form of creams (O / W emulsions) according to Example 2 and Comparative Examples 7 to 10 shown in Table 3 were prepared by mixing the ingredients shown in Table 3 below. (1) mixing the ingredients in Column A of Table 3 at 75-80°C to form a homogeneous mixture of Phase A; (2) adding the ingredients of column B of Table 3 to the mixture of phase A, followed by homogenization thereof to obtain a homogenous mixture (phase A and phase B); (3) adding the ingredients of column C of Table 3 to the mixture of phases A and B, followed by homogenization to obtain a uniform mixture (phases A, B and C), and cooling the mixture to room temperature (25° C.); (4) adding the ingredients of column E of Table 3 to the mixture of phases A, B, and C, followed by homogenization thereof to obtain a uniform mixture (phases A, B, C, and E); and (5) Adding the ingredients from column D of Table 3 to the mixture of phases A, B, C, and E, followed by homogenization to obtain a uniform mixture (phases A, B, C, D, and E).

[0236] All numerical values ​​for the amounts of components shown in Table 3 are based on "mass %" of the raw materials.

[0237] [Table 3A]

[0238] [Table 3B]

[0239] The properties of the cellulose (particles) in Table 3 are the same as those shown in Table 2.

[0240] [evaluation] (viscosity) The viscosity of each of the compositions of Example 2 and Comparative Examples 7, 8 and 10 was measured at room temperature (25° C.) using a Brookfield viscometer under the conditions of rotor No. 4, rotation speed: 6 rpm, and measurement time: 1 minute.

[0241] The viscosity of the composition according to Comparative Example 9 could not be measured due to phase separation of the composition.

[0242] The results are shown in Table 3.

[0243] (Texture conversion) Five expert judges evaluated the "texture transformation" during application of the compositions according to Example 2 and Comparative Examples 7-10. Each judge took each composition and applied it in a circular pattern on his or her face. The judges evaluated the timing of the texture transformation (from cream to liquid) and graded it from 1 (poor) to 5 (very good), then classified it into the following four categories based on the average of the scores: Very good: 5.0~4.0 (texture transformation is clearly felt at the early stage of application) Good: 3.9-3.0 (texture transformation is noticeable at the early stages of application) Poor: 2.9~2.0 (texture transformation is difficult to feel at the initial stage of application) Very poor: 1.9-1.0 (no texture transformation felt at the beginning of application)

[0244] The results are shown in Table 3.

[0245] (Non-sticky feel) Five expert judges evaluated the "non-sticky feel" after application of the compositions according to Example 2 and Comparative Examples 7 to 10. Each judge took each composition, applied it to their face, evaluated the non-sticky feel after application, and ranked it from 1 (poor) to 5 (very good), and then classified it into the following four categories based on the average of the scores: Very good: 5.0-4.0 (no sticky feeling after application) Good: 3.9-3.0 (not sticky after application) Poor: 2.9-2.0 (sticky feeling after application) Very poor: 1.9-1.0 (stickiness is clearly felt after application)

[0246] The results are shown in Table 3.

[0247] (stability) Each composition according to Example 2 and Comparative Examples 7 to 10 was filled into a glass bottle and kept for two months under temperature variations of 4° C., 25° C., 37° C., and 45° C. Each sample was then inspected for the degree of change (appearance, color, and odor) and evaluated according to the following criteria: Very Good: Nearly the same condition as when manufactured. Good: Little change in appearance, color, or odor was observed. Poor: Visible changes in appearance, color, and odor were observed. Very poor: Significant changes in appearance, color, and odor were observed.

[0248] The results are shown in Table 3.

[0249] (Summary) As is evident from Table 3, the composition in the form of a cream according to the present invention (Example 2) can provide excellent cosmetic benefits in terms of texture transformation, non-sticky feel, and stability under temperature changes for 2 months, which can be attributed to the combination of components (a) and (b) in the presence of component (c). Thus, the composition according to the present invention can provide, in particular, excellent hand feel and long-term stability under temperature changes.

[0250] On the other hand, the composition according to Comparative Example 7, which did not contain component (a) (cellulose particles), showed poor texture transformation and stickiness.

[0251] The composition according to Comparative Example 8, which contained silica particles instead of component (a), showed poor texture transformation and instability.

[0252] The composition according to Comparative Example 9, which did not contain component (b) (Acrylates / Beheneth-25 Methacrylate Copolymer), exhibited poor texture transformation and instability.

[0253] The composition according to Comparative Example 10, which contained another thickener instead of component (b), showed poor texture transformation and instability.

Claims

1. (a) at least one cellulose particle; (b) at least one associative polymer comprising one or more acrylic and / or methacrylic units, and (c) water A composition, preferably a cosmetic composition, more preferably a dermocosmetic composition, comprising:

2. 2. The composition according to claim 1, wherein the particle size of the (a) cellulose particles is 50 μm or less, preferably 30 μm or less, and more preferably 10 μm or less.

3. (a) Cellulose particles an oil wet point of at least 40 ml / 100 g, preferably at least 50 ml / 100 g, more preferably at least 60 ml / 100 g; and a water wetting point of at least 100 ml / 100 g, preferably at least 200 ml / 100 g, more preferably at least 300 ml / 100 g 2. The composition of claim 1, having:

4. 2. The composition according to claim 1, wherein the water wetting point / oil wetting point ratio of the (a) cellulose particles is 5 or less, preferably 4 or less, and more preferably 2 or less.

5. The composition of claim 1, wherein the (a) cellulose particles are spherical.

6. The composition according to claim 1, wherein the amount of (a) cellulose particles in the composition is 0.1% by weight to 20% by weight, preferably 0.5% by weight to 15% by weight, and more preferably 1% by weight to 10% by weight, relative to the total weight of the composition.

7. (b) the associative polymer is one or more (meth)acrylic acids (C 1 ~C 12 ) alkyl ester units.

8. 10. The composition of claim 1, wherein (b) the associative polymer comprises one or more units derived from a polyoxyalkylenated fatty alcohol.

9. 2. The composition of claim 1, wherein the amount of (b) associative polymer in the composition is 0.01% to 10% by weight, preferably 0.05% to 5% by weight, and more preferably 0.1% to 1% by weight, relative to the total weight of the composition.

10. 10. The composition of claim 1, in the form of a gel, preferably having a viscosity of 10,000 mPa.s or more at 25°C, more preferably from 10,000 mPa.s to 200,000 mPa.s at 25°C.

11. 10. The composition of claim 1, further comprising: (d) at least one oil.

12. 12. The composition of claim 11, wherein (d) the oil is selected from polar oils, preferably ester oils, artificial triglycerides, and mixtures thereof.

13. The composition according to claim 11, wherein the amount of (d) oil in the composition is from 1% to 50% by weight, preferably from 5% to 45% by weight, and more preferably from 10% to 40% by weight, relative to the total weight of the composition.

14. 12. The composition according to claim 11, in the form of an O / W emulsion, preferably having a viscosity of 10,000 mPa.s or more at 25°C, more preferably from 10,000 mPa.s to 200,000 mPa.s at 25°C.

15. A cosmetic method for treating keratinous materials, comprising the step of applying a composition according to any one of claims 1 to 14 to the keratinous materials.