Oil-in-water emulsion composition

Abstract

To provide an oil-in-water sun care composition which can provide a watery and fresh sensation to a keratinous substance, such as skin.SOLUTION: The present invention relates to an oil-in-water composition comprising: (a) at least one associative polymer comprising one or more acrylic and / or methacrylic units, (b) at least one neutralized poly(meth)acrylic acid polymer, (c) at least one organic UV filter, and (d) at least one oil.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an oil-in-water emulsion composition, preferably an oil-in-water skin care cosmetic composition. [Background technology]

[0002] Providing texture to keratinous materials such as skin is one of the important features of cosmetics, particularly skin cosmetics. Several techniques have been reported so far regarding emulsion compositions or gel-like compositions that provide improved texture.

[0003] For example, WO2018 / 180316 discloses an emulsion cosmetic containing components A to E, in which the content of component A is 0.1 to 1.0% by mass, the content of component B is 0.4% by mass or less, the content of component C is 0.3% by mass or less, and the content of component D is 4.0% by mass or less, the mass ratio of component B to component A (component B / component A) is 0.10 or more, the mass ratio of component C to component A (component C / component A) is 0.02 or more, and the mass ratio of component D to component A (component D / component A) is 0.4 to 7.0, inclusive. Component A is an (acrylate / beheneth-25 methacrylate) copolymer. Component B is a carboxyvinyl polymer and / or an alkyl-modified carboxyvinyl polymer. Component C is xanthan gum. Component D is a phospholipid. Component E is water.

[0004] Furthermore, JP-A-2016-121140 discloses a gel-like cosmetic composition containing a polyacrylic acid-based water-absorbing polymer having an average particle size of 1 to 30 μm and a water absorption ratio of 5 to 50 g / g.

[0005] Furthermore, JP-A-2019-182841 discloses a gel-like cosmetic composition in the form of an oil-in-water type, which contains components (A), (B), (C), (D), and (E), in which the content of component (D) is 0.1 to 1.0% by mass, the content of component (B) is 0.2 to 1.2% by mass, and the mass ratio of the content of component (B) to the content of component (A) [component (B) / component (A)] is 1.0 to 15.0.

[0006] Component (A) is a polymer containing at least structural units derived from (meth)acrylic acid and / or alkyl ether (meth)acrylate and structural units derived from polyoxyethylene alkyl ether (meth)acrylate.

[0007] Component (B) is a polymer containing structural units derived from acryloyldimethyltaurate.

[0008] Component (C) is one or more monoglyceryl fatty acid esters selected from the group consisting of glyceryl monocaprylate, glyceryl monocaprate, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl distearate, glyceryl monoisostearate, glyceryl diisostearate, glyceryl monohydroxystearate, glyceryl monooleate, glyceryl monobehenate, and glyceryl dibehenate.

[0009] Component (D) is a fatty alcohol having 12 to 24 carbon atoms.

[0010] Component (E) is water.

[0011] Organic UV filters are widely used in suncare cosmetics to provide UV protection to suncare compositions.However, the use of organic UV filters can have adverse effects, such as causing oily, greasy and sticky feeling during application.Therefore, there is a demand for suncare cosmetic compositions that contain organic UV filters and provide improved texture, such as fresh and refreshing texture. [Prior art documents] [Patent documents]

[0012] [Patent Document 1] WO2018 / 180316 [Patent Document 2] JP-A-2016-121140 [License 3] JP-A-2019-182841 [License 4] US 3 915 921 [Patent Document 5] US 4 509 949 [License 6] EP-A-750 899 [License 7] US 5 089 578 [License 8] EP 669 323 [License 9] US 2 463 264 [Non-licensed literature]

[0013] [Non-licensed Document 1] Self-assembling amphiphilic polyelectrolytes and their nanostructures, Chinese Journal of Polymer Science, Volume 18, No. 40 (2000), Pages 323~336 [Non-licensed Document 2] 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, Volume 33, No. 10 (2000), Pages 3694~3704 [Non-licensed Document 3] 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 [Non-patent document 4] Stimuli responsive amphiphilic copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and associative macromonomers, Polym. Preprint, Div. Polym. Chem. 1999, 40(2), pp. 220-221 [Non-Patent Document 5] Walter Noll, Chemistry and Technology of Silicones (1968), Academic Press Summary of the Invention [Problem to be solved by the invention]

[0014] An object of the present invention is to provide an oil-in-water sun care composition that can impart a fresh and refreshing feeling to keratinous materials such as the skin. [Means for solving the problem]

[0015] The object of the present invention is to (a) at least one associative polymer comprising one or more acrylic and / or methacrylic units; (b) at least one neutralized poly(meth)acrylic acid polymer; (c) at least one organic UV filter, and (d) at least one oil This can be achieved by an oil-in-water composition comprising:

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

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

[0018] (b) The neutralized poly(meth)acrylic acid polymer may be a crosslinked polymer.

[0019] (b) The neutralized poly(meth)acrylic acid polymer may be a homopolymer.

[0020] (b) The neutralized poly(meth)acrylic acid polymer may be partially neutralized.

[0021] The amount of (a) associative polymer may be 0.05% by weight or more, preferably 0.1% by weight or more, more preferably 0.15% by weight or more, in particular 0.2% by weight or more, and / or 3% by weight or less, preferably 2% by weight or less, more preferably 1% by weight or less, in particular 0.5% by weight or less, relative to the total weight of the composition.

[0022] (b) The amount of neutralized poly(meth)acrylic acid polymer may be 0.05% by weight or more, preferably 0.1% by weight or more, more preferably 0.15% by weight or more, in particular 0.2% by weight or more, and / or 3% by weight or less, preferably 2% by weight or less, more preferably 1% by weight or less, in particular 0.5% by weight or less, relative to the total weight of the composition.

[0023] The weight ratio of (a) associative polymer to (b) neutralized poly(meth)acrylic acid polymer in the composition may be 0.5 or more, preferably 0.8 or more, especially 0.9 or more, and / or 3 or less, preferably 2 or less, especially 1.5 or less.

[0024] (c) The amount of organic UV filter may be at least 3% by weight, preferably at least 5% by weight, more preferably at least 10% by weight, even more preferably at least 15% by weight, in particular at least 20% by weight, and / or at most 40% by weight, preferably at most 35% by weight, more preferably at most 30% by weight, in particular at most 25% by weight, relative to the total weight of the composition.

[0025] The amount of (d) oil may be at least 1% by weight, preferably at least 2% by weight, more preferably at least 3% by weight, even more preferably at least 5% by weight, in particular at least 6% by weight, and / or at most 20% by weight, preferably at most 15% by weight, more preferably at most 12% by weight, in particular at most 10% by weight, relative to the total weight of the composition.

[0026] The composition may further comprise at least one surfactant.

[0027] The surfactant can include a nonionic surfactant, an anionic surfactant, or a combination of a nonionic surfactant and an anionic surfactant.

[0028] The composition may further comprise water in an amount of at least 20% by weight, preferably at least 30% by weight, more preferably at least 40% by weight, even more preferably at least 45% by weight, in particular at least 50% by weight, and / or in an amount of at most 90% by weight, preferably at most 80% by weight, more preferably at most 70% by weight, in particular at most 60% by weight, relative to the total weight of the composition.

[0029] The present invention also provides a non-therapeutic cosmetic method for the care and / or conditioning of keratinous materials such as the skin, comprising: For keratin substances, (a) at least one associative polymer comprising one or more acrylic and / or methacrylic units; (b) at least one neutralized poly(meth)acrylic acid polymer; (c) at least one organic UV filter, and (d) at least one oil The present invention also relates to a method comprising applying an oil-in-water composition comprising: DETAILED DESCRIPTION OF THE INVENTION

[0030] After extensive investigation, the present inventors have surprisingly found that a combination of a specific thickness of (a) an associative polymer comprising one or more acrylic and / or methacrylic units and (b) a neutralized poly(meth)acrylic acid polymer can impart improved texture, such as less stickiness and a fresh, refreshing feel, to compositions containing high concentrations of organic UV filters, thus completing the present invention.

[0031] Thus, the composition according to the invention comprises: (a) at least one associative polymer comprising one or more acrylic and / or methacrylic units; (b) at least one neutralized poly(meth)acrylic acid polymer; (c) at least one organic UV filter, and (d) at least one oil An oil-in-water composition comprising:

[0032] The compositions, processes and methods according to the present invention are described in more detail below.

[0033] [Composition] The composition may be a cosmetic composition, preferably a cosmetic composition for keratinous materials, more preferably a suncare cosmetic composition for keratinous materials. In this specification, keratinous materials refer to materials containing keratin as a main component, and examples thereof include skin, scalp, lips, etc., in particular skin.

[0034] The composition according to the present invention is an oil-in-water emulsion. The form of the composition according to the present invention is not particularly limited as long as it is in the form of an oil-in-water emulsion such as an aqueous gel or an aqueous solution.

[0035] The composition according to the present invention comprises (a) at least one associative polymer comprising one or more acrylic and / or methacrylic units, (b) at least one neutralized poly(meth)acrylic acid polymer, (c) at least one organic UV filter, and (d) at least one oil. The components in the composition will be described in more detail below.

[0036] (associative polymer) The composition according to the invention comprises (a) at least one associative polymer comprising one or more acrylic and / or methacrylic units. A single type of associative polymer may be used, but two or more different types of associative polymers may also be used in combination.

[0037] For purposes of the present invention, the term "associative polymer" or "associative copolymer" refers to polymers or copolymers that are capable of reversibly associating with each other or with other molecules in an aqueous medium.

[0038] The associative polymers of the present invention are preferably associative copolymers of one or more acrylic and / or methacrylic units with other units.

[0039] The associative copolymer 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 10 to 30 carbon atoms, in particular 12 to 30 carbon atoms, and more preferentially 16 to 30 carbon atoms.

[0040] For the purposes of the present invention, an associative copolymer comprising one or more acrylic and / or methacrylic units means that the copolymer comprises at least one acrylic acid unit or at least one methacrylic acid unit or a mixture thereof. The associative copolymer 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").

[0041] In one preferred embodiment of the present invention, the associative copolymer according to the present invention is prepared by the addition of 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.

[0042] According to a particular embodiment, the associative copolymer according to the invention comprises one or more acrylic acid units. According to a further embodiment, the associative copolymer according to the invention comprises one or more methacrylic acid units. According to another embodiment, the associative copolymer according to the invention comprises one or more acrylic acid units and one or more methacrylic acid units.

[0043] In certain embodiments, the associative copolymer may comprise additional units derived from additional monomers other than (meth)acrylic acid. For example, such monomers may be esters of ethylenically unsaturated hydrophilic 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 linear or branched, preferably linear, saturated or unsaturated, preferably saturated (C 12 ~C 30 ) fatty alcohols, especially (C 16 ~C 26) fatty alcohols. The polyoxyalkylene chain of the ester monomer is preferentially composed of ethylene oxide and / or propylene oxide units, and even more particularly of ethylene oxide units. The number of oxyalkylene units generally ranges from 3 to 100, preferably from 7 to 50, and more preferably from 12 to 30.

[0044] We can mention associative copolymers of the product sold by LUBRIZOL under the trade name NOVETHIX L-10 POLYMER® (INCI name: Acrylates / Beheneth-25 Methacrylate Copolymer), the product sold by DOW CHEMICAL under the trade name Aculyn® 22 (INCI name: Acrylates / Steareth-20 Methacrylate Copolymer), the product sold by DOW CHEMICAL under the trade name Aculyn® 88 (INCI name: Acrylates / Steareth-20 Methacrylate Crosspolymer), the product sold by AKZO NOBEL under the trade name STRUCTURE® 2001 (INCI name: Acrylates / Steareth-20 Itaconate Copolymer) and the product sold by AKZO NOBEL under the trade name STRUCTURE® 3001 (INCI name: Acrylates / Ceteth-20 Itaconate Copolymer).

[0045] The (a) associative copolymers that may be used according to the invention may also be chosen from anionic associative copolymers containing acrylic and / or methacrylic units.

[0046] The (meth)acrylic anionic associative copolymers that can be used according to the invention contain at least one hydrophilic unit of the unsaturated olefinic carboxylic acid type and (C 10 ~C 30 ) alkyl esters, etc.

[0047] More particularly, these (meth)acrylic acid associative copolymers preferably have hydrophilic units of the unsaturated olefinic carboxylic acid type of formula (I):

[0048] [ka]

[0049] [In the formula, R 1 represents H or CH, i.e., an acrylic acid unit or a methacrylic acid unit. and unsaturated carboxylic acid type (C 10 ~C 30 ) The hydrophobic unit of the alkyl ester is of the following formula (II):

[0050] [ka]

[0051] [In the formula, R 1 represents H or CH3 (i.e., an acrylate or methacrylate unit), and R 2 is C 10 ~C 30 , preferably C 12 ~C 22 indicates an alkyl group] The monomers are selected from those corresponding to the formula:

[0052] of unsaturated carboxylic acids according to formula (II) (C 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.

[0053] (Meth)acrylic acid associative copolymers of this type are described, for example, in patents US 3 915 921 and US 4 509 949 and are prepared according to them.

[0054] The (meth)acrylic acid associative copolymers that can be used according to the invention are more particularly (i) Formula (III):

[0055] [ka]

[0056] [In the formula, R 3 represents H or CH3, and R 4 represents an alkyl group having 12 to 22 carbon atoms, optionally containing a crosslinker, such as 95% to 60% by weight of acrylic acid (hydrophilic unit), 4% to 40% by weight of C 10 ~C 30 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 C 10 ~C 30 indicates a cross-linking agent consisting of alkyl acrylate (hydrophobic unit) and 0.1% to 0.6% by mass of a cross-linking polymerizable monomer. acrylic acid and one or more esters of (ii) essentially acrylic acid and lauryl methacrylate, such as a product formed from 66% by weight acrylic acid and 34% by weight lauryl methacrylate It can refer to a polymer formed from a mixture of monomers including:

[0057] In these embodiments of the invention, the term "crosslinker" refers to a group

[0058] [ka]

[0059] and at least one other polymerizable group, wherein the unsaturated bonds of the monomers are not conjugated with each other. Crosslinking agents that can be used according to the invention include polyallyl ethers, such as polyallylsucrose and polyallylpentaerythritol, among others.

[0060] Of the (meth)acrylic acid associative copolymers mentioned above, the products sold by Goodrich under the trade names Pemulen TR1, Pemulen TR2, Carbopol 1382, and even more preferably Pemulen TR1, and the product sold by SEPC under the name Coatex SX are particularly preferred for the present invention.

[0061] Mention may also be made as (meth)acrylic acid associative copolymer the copolymer of methacrylic acid / methyl acrylate / dimethyl-meta-isopropenylbenzyl isocyanate ethoxylated alcohol sold under the name Viscophobe DB 1000 by the company Amerchol.

[0062] Other (meth)acrylic associative copolymers that can be used according to the 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 fully neutralized form, and that contain at least one hydrophobic moiety.

[0063] The hydrophobic moieties present in the sulfonic acid polymers that may be used according to the 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.

[0064] Preferentially, these sulfonic acid polymers that may be used according to the invention are partially or completely neutralized with inorganic bases (sodium hydroxide, potassium hydroxide or aqueous ammonia) or with organic bases such as mono-, di- or triethanolamine, aminomethylpropanediol, N-methylglucamine, basic amino acids such as arginine and lysine, and with mixtures of these compounds.

[0065] These said sulfonic acid polymers generally have a number average molecular weight in the range of 1000 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.

[0066] The sulfonic acid polymers that can be used according to the invention can be crosslinked or non-crosslinked, with crosslinked polymers being preferred.

[0067] If crosslinked, the crosslinking agent may be selected from 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 from sugars or other allyl or vinyl ethers of polyfunctional alcohols, or allyl esters of phosphoric and / or vinylphosphonic acid derivatives, or mixtures of these compounds.

[0068] Methylenebisacrylamide, allyl methacrylate or trimethylolpropane triacrylate (TMPTA) are more particularly used.

[0069] 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.

[0070] The (meth)acrylic monomers containing sulfonic acid groups of the sulfonic acid polymers that can be used according to the 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 undecylacrylamidomethanesulfonic acid, and also their partially or fully neutralized forms.

[0071] (Meth)acrylamide (C1-C 22 ) Alkyl sulfonic acids, such as acrylamidomethanesulfonic acid, acrylamidoethanesulfonic acid, acrylamidopropanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, methacrylamido-2-methylpropanesulfonic acid, 2-acrylamido-n-butanesulfonic acid, 2-acrylamido-2,4,4-trimethylpentanesulfonic acid, 2-methacrylamidododecylsulfonic acid or 2-acrylamido-2,6-dimethyl-3-heptanesulfonic acid, and their partially or completely neutralized forms, are more particularly used. 2-Acrylamido-2-methylpropanesulfonic acid (AMPS), and its partially or completely neutralized forms, are even more particularly used.

[0072] (Meth)acrylic acid associative thickeners that may be used according to the invention are C6-C acrylic acid associative thickeners such as those described in patent application WO 00 / 31154, which forms an integral part of the disclosure. 22 n-monoalkylamine or C6-C 22It may especially be chosen from random amphiphilic AMPS polymers modified by reaction with di-n-alkylamines.

[0073] 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 mono- or polyalkylene glycols, (meth)acrylamide, vinylpyrrolidone, maleic anhydride, itaconic acid, or maleic acid, or mixtures of these compounds.

[0074] (Meth)acrylic associative thickeners having sulfonic acid groups that can be particularly preferably used according to the 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.

[0075] 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 mono- or polyalkylene glycols, (meth)acrylamide, vinylpyrrolidone, maleic anhydride, itaconic acid, or maleic acid, or mixtures of these compounds.

[0076] These copolymers are described inter alia in patent application EP-A-750 899, patent US Pat. No. 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), pp. 220-221.

[0077] The ethylenically unsaturated hydrophobic monomer of these particular copolymers is represented by formula (IV):

[0078] [ka]

[0079] [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 6represents 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, and more particularly 12 to 18 carbon atoms; and x represents the number of moles of alkylene oxide and ranges from 0 to 100. The acrylate or acrylamide is preferably selected from the group consisting of:

[0080] 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 C-C 18 Alkyl groups (e.g., cyclododecane (C 12 ) or adamantane (C 10 )) to C6~C 18 Pentafluoroalkyl groups (e.g., groups of the formula -(CH2)2-(CF2)9-CF3) can be used to form cholesteryl groups (C 27 ) or cholesterol ester residues, for example cholesteryloxyhexanoate groups, and aromatic polycyclic groups such as naphthalene or pyrene. Of these groups, more particularly preferred are linear alkyl groups, more particularly n-dodecyl groups.

[0081] 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 even more particularly of ethylene oxide units. The number of oxyalkylene units generally ranges from 3 to 100, more preferably from 3 to 50, and even more preferably from 7 to 25.

[0082] 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 C9 16 ) alkyl (meth)acrylamide unit or (C8 to C16 ) 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.

[0083] 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.

[0084] Formula (V) below:

[0085] [ka]

[0086] [where, X + is a proton, an alkali metal cation, an alkaline earth metal cation, or an ammonium ion. 2-acrylamido-2-methylpropanesulfonic acid (AMPS) units, Formula (VI) below:

[0087] [ka]

[0088] [wherein x represents an integer ranging from 3 to 100, preferably from 5 to 80, more preferentially from 7 to 25, and R 5 has the same meaning as in formula (IV) above, and R 8 is a linear or branched C6-C 22 , more preferentially C 10 ~C22 indicates alkyl] and copolymers composed of units of the formula:

[0089] A preferred polymer is where x=25 and R 5 indicates methyl, and R 8 represents n-dodecyl, and these are described in the Morishima paper mentioned above.

[0090] Furthermore, in formula (IV), x=20 to 25, and R 5 indicates methyl, and R 8 C 12 ~C 24 Particularly preferred is the use of monomers which represent an alkyl group, preferably a lauryl group, a myristyl group, a palmityl group, a stearyl group or a behenyl group, for example. In particular, x=20 to 25 and R 5 indicates methyl, and R 8 is a stearyl group or a behenyl group, etc. 16 ~C 24 The use of monomers of formula (IV) which represent alkyl chains is particularly preferred.

[0091] X + More particularly preferred are polymers in which represents sodium or ammonium.

[0092] The (a) associative polymer of the present invention may be present in an amount of 0.05% by weight or more, preferably 0.1% by weight or more, more preferably 0.15% by weight or more, especially 0.2% by weight or more, and / or in an amount of 3% by weight or less, preferably 2% by weight or less, more preferably 1% by weight or less, especially 0.5% by weight or less, relative to the total weight of the composition.

[0093] (Neutralized poly(meth)acrylic acid polymer) The composition according to the present invention comprises (b) at least one neutralized poly(meth)acrylic acid polymer. A single type of neutralized poly(meth)acrylic acid polymer may be used, or two or more different types of neutralized poly(meth)acrylic acid polymers may be used in combination.

[0094] The neutralized poly(meth)acrylic acid polymer of the present invention may have water-absorbing properties. Thus, the neutralized poly(meth)acrylic acid polymer may be a water-absorbing polymer.

[0095] In one particular embodiment of the present invention, the neutralized poly(meth)acrylic acid polymer may have a water absorption capacity at 25° C. and 1 atm of 10 g or more, preferably 20 g or more, more preferably 50 g or more, and / or 2000 g or less, preferably 1500 g or less, more preferably 1000 g or less, of water per gram of polymer.

[0096] The neutralized poly(meth)acrylic acid polymer can be provided in the form of particles, preferably spherical particles. The average primary particle size D50 of the neutralized poly(meth)acrylic acid polymer is not particularly limited, but is generally 0.1 μm or more, preferably 0.5 μm or more, more preferably 1 μm or more, and / or 200 μm or less, preferably 100 μm or less, more preferably 50 μm or less. As used herein, the term "D50" refers to the particle size at which 50% by volume of the particles are equal to or less than D50, and 50% by volume of the particles are greater than D50, based on the total volume of the particles. The D50 value can be determined, for example, by laser diffraction using a laser diffraction particle size distribution analyzer such as the Mastersizer 2000 manufactured by Malvern Corp.

[0097] The neutralized poly(meth)acrylic acid polymer may be water-soluble, and therefore may be included in the aqueous phase of the O / W emulsion composition of the present invention.

[0098] The neutralized poly(meth)acrylic acid polymer of the present invention may be fully or partially neutralized. Preferably, the neutralized poly(meth)acrylic acid polymer is partially neutralized. The molar ratio of the neutralized portion to the non-neutralized portion is not particularly limited, but is generally 10 mol% or more, 20 mol% or more, 30 mol% or more, or 40 mol% or more, and / or 90 mol% or less, 80 mol% or less, 70 mol% or less, or 60 mol% or less.

[0099] The neutralized poly(meth)acrylic acid polymer may be a homopolymer or a copolymer. Preferably, the neutralized poly(meth)acrylic acid polymer is a homopolymer.

[0100] The neutralized poly(meth)acrylic acid polymer may be crosslinked.

[0101] In one preferred embodiment of the invention, the neutralized poly(meth)acrylic acid polymer is a crosslinked homopolymer. Mention may be made in particular of the crosslinked, partially neutralized sodium polyacrylate sold under the name AQUPEC MG N40R, also known as sodium carbomer.

[0102] (b) The neutralized poly(meth)acrylic acid polymer may be present in an amount of 0.05% by weight or more, preferably 0.1% by weight or more, more preferably 0.15% by weight or more, in particular 0.2% by weight or more, and / or in an amount of 3% by weight or less, preferably 2% by weight or less, more preferably 1% by weight or less, in particular 0.5% by weight or less, relative to the total weight of the composition.

[0103] The weight ratio of (a) the associative polymer to (b) the neutralized poly(meth)acrylic acid polymer in the composition is not particularly limited. In a preferred embodiment of the present invention, the weight ratio of (a) the associative polymer to (b) the neutralized poly(meth)acrylic acid polymer in the composition is 0.5 or more, preferably 0.8 or more, particularly 0.9 or more, and / or 3 or less, preferably 2 or less, particularly 1.5 or less.

[0104] (organic UV filter) The composition according to the present invention may contain at least one (c) organic UV filter. A single type of organic UV filter may be used, or two or more different types of organic UV filters may be used in combination.

[0105] The term "UV" as used herein means ultraviolet light, including the UV-B region (wavelengths of 260 to 320 nm) and the UV-A region (wavelengths of 320 to 400 nm). Therefore, a UV filter refers to any material that has the effect of blocking ultraviolet light with wavelengths in the UV-A and / or UV-B regions.

[0106] The UV filters used for the present invention may be active in the UV-A and / or UV-B range, preferably in both the UV-A and UV-B range, alone or in combination. Thus, UV filters for use in the present invention include UV-A filters capable of absorbing UV radiation in the range of 320 to 400 nm, UV-B filters capable of absorbing UV radiation in the range of 280 to 320 nm, and UV-A and UV-B filters capable of absorbing UV radiation in the range of 280 to 400 nm.

[0107] The organic UV filters used for the present invention can be lipophilic and / or hydrophilic organic UV filters. Preferably, the composition according to the present invention comprises at least one lipophilic organic UV filter, more preferably a combination of at least one lipophilic organic UV filter and at least one hydrophilic organic UV filter.

[0108] (i) Lipophilic organic UV filters The term "lipophilic organic UV filter" is used herein to mean a lipophilic organic UV filter at room temperature (25°C) and atmospheric pressure (10 5Lipophilic organic UV filters are therefore present in the oily phase of the present invention in a concentration of at least 1% by weight relative to the total weight of the oil, in terms of their solubility in oil (at least 1% by weight, in Pa).

[0109] Lipophilic organic UV-A filters for use in the present invention include, but are not limited to, aminobenzophenone compounds, dibenzoylmethane compounds, anthranilic acid compounds, and 4,4-diarylbutadiene compounds.

[0110] The aminobenzophenone compound may be n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, an alternative name of which is diethylaminohydroxybenzoylhexylbenzoate (DHHB) sold by BASF under the trade name "Uvinul A+."

[0111] Examples of dibenzoylmethane compounds include 4-isopropyldibenzoylmethane sold by Merck under the name "Eusolex 8020," 1-(4-methoxy-1-benzofuran-5-yl)-3-phenylpropane-1,3-dione and 1-(4-(tert-butyl)phenyl)-3-(2-hydroxyphenyl)propane-1,3-dione sold by Quest under the name "Pongamol," and butylmethoxydibenzoylmethane sold by Hoffmann-La Roche under the trade name "Parsol 1789."

[0112] Mention may be made as an anthranilic acid compound of menthyl anthranilate sold under the name "NEO HELIPAN MA" by Symrise.

[0113] 4,4-diarylbutadiene compounds include 1,1-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene, and diphenylbutadiene malonate and malononitrile.

[0114] Lipophilic organic UV-B filters for use in the present invention include, but are not limited to, triazine compounds, para-aminobenzoic acid compounds, salicylic acid compounds, cinnamate compounds, β,β-diphenylacrylate compounds, benzylidene camphor compounds, phenylbenzimidazole compounds, imidazoline compounds, benzalmalonate compounds, and merocyanine compounds.

[0115] Examples of triazine compounds include ethylhexyl triazone sold by BASF under the name "UVINUL T-150," diethylhexylbutamido triazone sold by SIGMA 2V under the name "UVASORB HEB," 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, 2,4,6-tris(diisobutyl 4'-aminobenzalmalonate)-s-triazine, 2,4-bis(dineopentyl 4'-aminobenzalmalonate)-6-(n-butyl 4'-aminobenzoate)-s-triazine, and 2,4-bis(n-butyl 4'-aminobenzoate)-6-(aminopropyltrisiloxane)-s-triazine.

[0116] Para-aminobenzoic acid derivatives include para-aminobenzoates (PABA), such as ethyl PABA (para-aminobenzoate), ethyl dihydroxypropyl PABA, and ethylhexyl dimethyl PABA, commercially available from ISP under the name "ESCALOL 5972."

[0117] Salicylic acid compounds include homosalate, sold under the name "Eusolex HMS" by Rona / EM Industries, and ethylhexyl salicylate, sold under the name "NEO HELIOPAN OS" by Symrise.

[0118] Examples of cinnamate compounds include ethylhexyl methoxycinnamate and isopropyl ethoxycinnamate, which are sold under the name "PARSOL CX" by DSM NUTRITIONAL PRODUCTS, isoamyl methoxycinnamate, diisopropyl methyl cinnamate, cinoxate, and glyceryl ethylhexanoate dimethoxycinnamate, which are sold under the name "NEO HELIOPAN E 1000" by Symrise.

[0119] As β,β-diphenylacrylate compounds, mention may be made of octocrylene, sold under the name "UVINUL N539" by BASF, and etocrylene, sold under the name "UVINUL N35" by BASF.

[0120] Examples of benzylidene camphor compounds include 3-benzylidene camphor commercially available from CHIMEX under the name "MEXORYL SD," methylbenzylidene camphor commercially available from MERCK under the name "EUSOLEX 6300," polyacrylamide methylbenzylidene camphor commercially available from CHIMEX under the name "MEXORYL SW," and terephthalylidene dicamphorsulfonic acid commercially available from Chimex under the name "Mexoryl SX."

[0121] As phenylbenzimidazole compounds, mention may be made of phenylbenzimidazole sulfonic acid sold under the name "Eusolex 232" by Merck, and disodium phenyldibenzimidazole tetrasulfonate sold under the name "Neo Heliopan AP" by Haarmann and Reimer.

[0122] The imidazoline compound can include ethylhexyl dimethoxybenzylidene dioxoimidazoline propionate.

[0123] Benzalmalonate compounds include polyorganosiloxanes containing benzalmalonate moieties, such as polysilicone-15 sold under the name "Parsol SLX" by DSM NUTRITIONAL PRODUCTS, and di-neopentyl 4'-methoxybenzalmalonate.

[0124] The lipophilic organic UV filters of the present invention may comprise lipophilic UV-A and UV-B filters. The following are non-limiting examples of lipophilic organic UV-A and UV-B filters: benzophenone compounds, such as benzophenone-1 sold under the name "UVINUL 400" by BASF, benzophenone-2 sold under the name "UVINUL 500" by BASF, benzophenone-3 or oxybenzone sold under the name "UVINUL M40" by BASF, benzophenone-6 sold under the name "Helisorb 11" by Norquay, benzophenone-8, benzophenone-10, benzophenone-11 and benzophenone-12 sold under the name "Spectra-Sorb UV-24" by American Cyanamid, benzotriazole compounds, such as drometrizole trisiloxane sold under the name "Silatrizole" by the company Rhodia Chimie and bumetrizole sold under the name "TINOGUARTD AS" by the company CIBA-GEIGY, and 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethyl-butyl)phenol] (methylenebis-benzotriazolyltetramethylbutylphenol) sold under the name "TINOSORB M" by the company BASF, bis-resorcinyltriazine compounds, such as bis-ethylhexyloxyphenol methoxyphenyl triazine sold under the name "TINOSORB S" by the company CIBA-GEIGY, benzoxazole compounds, for example 2,4-bis[5-(1-dimethylpropyl)benzoxazol-2-yl(4-phenyl)imino]-6-(2-ethylhexyl)imino-1,3,5-triazine sold under the name "Uvasorb K2A" by the company Sigma 3V.

[0125] Preferably, the lipophilic organic UV filter of the present invention is selected from a combination of at least one lipophilic organic UV-A filter and at least one lipophilic organic UV-B filter.

[0126] In one embodiment of the invention, the lipophilic organic UV filters may be present in the composition in an amount of at least 3% by weight, preferably at least 5% by weight, more preferably at least 10% by weight, even more preferably at least 15% by weight, in particular at least 20% by weight, and / or in an amount of at most 40% by weight, preferably at most 35% by weight, more preferably at most 30% by weight, in particular at most 25% by weight, relative to the total weight of the composition.

[0127] (ii) Hydrophilic organic UV filters The term "hydrophilic organic UV filter" as used herein refers to a hydrophilic organic UV filter at room temperature (25°C) and atmospheric pressure (10 5 By hydrophilic organic UV filters is meant organic UV filters that are soluble in water at a concentration of at least 1% by weight, relative to the total weight of water, in terms of pH (Pa). Hydrophilic organic UV filters are therefore present in the aqueous phase of the present invention.

[0128] Hydrophilic organic UV-A filters include, but are not limited to: Terephthalylidene dicamphorsulfonic acid and its salts, such as those manufactured by Chimex under the name "Mexoryl SX";

[0129] Bisbenzoxazolyl derivatives, such as those described in patents EP 669 323 and US 2 463 264, and more particularly the compound phenyldibenzimidazole tetrasulfonate disodium and its salts sold under the trade name "Neo Heliopan AP" by the company Haarmann and Reimer.

[0130] Hydrophilic organic UV-B filters include, but are not limited to: p-aminobenzoic acid (PABA) derivatives, such as PABA, glyceryl PABA and PEG-25 PABA, and salts thereof, such as those sold under the name "Uvinul P25" by BASF; Phenylbenzimidazole sulfonic acid and its salts, such as, in particular, that sold under the trade name "Eusolex 232" by Merck, Ferulic acid and its salts, salicylic acid and its salts, DEA methoxycinnamate and its salts, Benzylidene camphorsulfonic acid and its salts, such as those manufactured by Chimex under the name "Mexoryl SL"; Camphorbenzalkonium methosulfate and its salts, such as those manufactured by Chimex under the name "Mexoryl SO".

[0131] Hydrophilic organic UV-A and UV-B filters may include, but are not limited to: Benzophenone-4 and its salts, such as those sold under the trade name "Uvinul MS40" by BASF, Benzophenone-5 and its salts, and Benzophenone-9 and its salts.

[0132] Salts of the compounds which may be used are in particular salts of alkali metals, such as sodium or potassium; salts of alkaline earth metals, such as calcium, magnesium or strontium; salts of metals, such as zinc, aluminum, manganese or copper; salts of compounds of the formula NH 4+ The salts are selected from the group consisting of ammonium salts, quaternary ammonium salts, organic amine salts, such as methylamine, dimethylamine, trimethylamine, triethylamine, ethylamine, 2-hydroxyethylamine, bis(2-hydroxyethyl)amine or tris(2-hydroxyethyl)amine salts, and lysine or arginine salts. Preferably, salts selected from sodium, potassium, magnesium, strontium, copper, manganese or zinc salts are used. Preferentially, sodium salts are used.

[0133] In one embodiment of the invention, the hydrophilic organic UV filters may be present in the composition in an amount of at least 0.1% by weight, more preferably at least 0.5% by weight, even more preferably at least 1% by weight, in particular at least 2% by weight, and / or in an amount of at most 7% by weight, preferably at most 5% by weight, in particular at most 4% by weight, relative to the total weight of the composition.

[0134] (c) The organic UV filters may be present in an amount of at least 3% by weight, preferably at least 5% by weight, more preferably at least 10% by weight, even more preferably at least 15% by weight, and in particular at least 20% by weight, relative to the total weight of the composition, and / or in an amount of at most 40% by weight, preferably at most 35% by weight, more preferably at most 30% by weight, and in particular at most 25% by weight.

[0135] (oil) The composition according to the invention may comprise at least one oil. If two or more oils are used, they may be the same or different.

[0136] As used herein, "oil" refers to a fatty compound or substance in the form of a liquid or paste (non-solid) at atmospheric pressure (760 mmHg) and room temperature (25°C). As oil, those commonly used in cosmetics can be used alone or in combination. These oils can be volatile or non-volatile. Preferably, the oil is different from the UV filter.

[0137] The oil may form the oily phase of the O / W emulsion of the composition according to the invention, and therefore the oily phase of the composition comprises an oil.

[0138] The oil may be a non-polar oil such as a hydrocarbon oil or a silicone oil, a vegetable oil or an animal oil, and a polar oil such as an ester oil or an ether oil, or a mixture thereof.

[0139] 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.

[0140] Examples of vegetable oils include 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.

[0141] Examples of animal oils include squalene and squalane.

[0142] Examples of synthetic oils include alkane oils such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

[0143] The ester oil is preferably a saturated or unsaturated, linear or branched C1-C 26 Aliphatic mono- or polyacids and saturated or unsaturated linear or branched C1-C 26It is a liquid ester of an aliphatic monohydric alcohol or polyhydric alcohol, and the total number of carbon atoms in the ester is 10 or more.

[0144] Preferably, in the case of esters of monohydric alcohols, at least one of the alcohol and acid from which the esters of the present invention are derived is branched.

[0145] Among the monoesters of monoacids 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.

[0146] C4~C 22 Dicarboxylic or tricarboxylic acids and C1-C 22 Esters with alcohols, and monocarboxylic, dicarboxylic, or tricarboxylic acids with non-sugar C4-C 26 Esters with dihydroxy, trihydroxy, tetrahydroxy, or pentahydroxy alcohols may also be used.

[0147] Mention may in particular be made of: diethyl sebacate, isopropyl lauroyl sarcosinate, 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.

[0148] As ester oil, C6-C 30 , preferably C 12~C 22 Sugar esters and diesters of fatty acids can be used. It should be remembered that the term "sugar" refers to an oxygen-bearing hydrocarbon-based compound containing some alcohol functional groups, with or without aldehyde or ketone functional groups, and containing at least four carbon atoms. These sugars can be monosaccharides, oligosaccharides, or polysaccharides.

[0149] Examples of suitable sugars that may be mentioned are 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.

[0150] Sugar esters of fatty acids are, in particular, those made by esterifying the aforementioned sugars with linear or branched, saturated or unsaturated C6-C 30 , preferably C 12 ~C 22 They can be selected from the group comprising esters or mixtures of esters with fatty acids, which, when unsaturated, can have 1 to 3 conjugated or non-conjugated carbon-carbon double bonds.

[0151] The esters according to this variant may also be chosen from monoesters, diesters, triesters, tetraesters and polyesters, and mixtures thereof.

[0152] These esters may be, for example, oleate, laurate, palmitate, myristate, behenate, coconut, stearate, linoleate, linolenate, caprate, and arachidonic acid esters, or mixtures thereof, such as, inter alia, mixed esters of oleopalmitate, oleostearate, and palmitostearate, and pentaerythrityl tetraethylhexanoate.

[0153] More particularly, monoesters and diesters are used, especially monooleate or dioleate, stearate, behenate, oleopalmitate, linoleate, linolenate, and oleostearate of sucrose, glucose, or methylglucose.

[0154] An example that may be mentioned is the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.

[0155] 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 (caprylic / capric acid), methyl palmitate, ethyl palmitate, isopropyl palmitate, dicarbonate, Examples of suitable alkyl acrylates include purilyl, isopropyl lauroyl sarcosinate, 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.

[0156] Examples of ether oils include ether oils with short hydrocarbon chains, such as dicaprylyl ether.

[0157] Examples of artificial triglycerides include caprylic / caprylyl glyceride, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, capric / caprylic triglyceride, and capric / caprylic / linolenic triglyceride.

[0158] Examples of silicone oils include linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; and mixtures thereof.

[0159] Preferably, the silicone oil is chosen from liquid polydialkylsiloxanes, in particular liquid polydimethylsiloxanes (PDMS), and liquid polyorganosiloxanes containing at least one aryl group.

[0160] These silicone oils may also be organically modified. The organically modified silicones that can be used according to the present invention are silicone oils as defined above, which contain one or more organic functional groups in their structure that are bonded via hydrocarbon-based groups.

[0161] Organopolysiloxanes are further defined in Walter Noll's Chemistry and Technology of Silicones, Academic Press, 1968. Organopolysiloxanes can be volatile or nonvolatile.

[0162] When volatile, the silicones are more particularly chosen from those having a boiling point between 60°C and 260°C.

[0163] Non-volatile polydialkylsiloxanes may also be used, these being more particularly chosen from polydialkylsiloxanes, among which mention may be made mainly of polydimethylsiloxanes having trimethylsilyl end groups.

[0164] Among these polydialkylsiloxanes, mention may be made, but is not limited to, the following commercial products: Silbione® or Mirasil® oils of the 47 and 70 047 series sold by the company Rhodia, for example oil 70 047 V 500 000; - Mirasil® series oils sold by Rhodia; - Dow Corning 200 series oil, e.g. viscosity 60000mm 2 / s DC 200; and Viscasil® oils manufactured by General Electric and certain oils of the SF series (SF 96, SF 18) manufactured by General Electric.

[0165] 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.

[0166] Among the silicones containing aryl groups, mention may be made of polydiarylsiloxanes, especially polydiphenylsiloxanes, and polyalkylarylsiloxanes, such as phenylsilicone oils.

[0167] Examples that may be mentioned include products sold under the following names: Silbione® oils of the 70 641 series from Rhodia, oils of the Rhodorsil® 70 633 and 763 series from the company Rhodia; - Dow Corning 556 Cosmetic Grade Fluid, - Bayer PK series silicones, e.g. PK20 product, Certain oils of the SF series manufactured by General Electric, such as SF 1023, SF 1154, SF 1250, and SF 1265.

[0168] As the phenyl silicone oil, phenyl trimethicone is preferred.

[0169] The organically modified liquid silicones may contain, inter alia, polyethyleneoxy and / or polypropyleneoxy groups, and thus mention may be made of silicone KF-6017 proposed by Shin-Etsu Chemical Co., Ltd., and oils Silwet® L722 and L77 from Union Carbide.

[0170] The hydrocarbon oil may be selected from: - linear or branched, optionally cyclic, C6-C 16 Lower alkanes, examples which 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 petrolatum, polydecene and hydrogenated polyisobutenes, such as Parleam®, and squalane.

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

[0172] The term "fatty" in fatty alcohol means containing a relatively large number of carbon atoms. Therefore, alcohols having 4 or more carbon atoms, preferably 6 or more carbon atoms, 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 groups and C 12 ~C 20 R may be selected from alkenyl groups, which may or may not be 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 may be 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 You can choose from alcohol.

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

[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 saturated fatty alcohols.

[0179] (d) The oil may be present in an amount of 1% by weight or more, preferably 2% by weight or more, more preferably 3% by weight or more, even more preferably 5% by weight or more, in particular 6% by weight or more, and / or in an amount of 20% by weight or less, preferably 15% by weight or less, more preferably 12% by weight or less, in particular 10% by weight or less, relative to the total weight of the composition.

[0180] (water) The composition according to the present invention may comprise water. Water can form the aqueous phase of the O / W emulsion of the present invention. Thus, the aqueous phase of the composition may comprise water.

[0181] Water may be present in an amount of at least 20% by weight, preferably at least 30% by weight, more preferably at least 40% by weight, even more preferably at least 45% by weight, especially at least 50% by weight, and / or in an amount of at most 90% by weight, preferably at most 80% by weight, more preferably at most 70% by weight, especially at most 60% by weight, relative to the total weight of the composition.

[0182] (surfactant) The composition according to the present invention may comprise at least one surfactant selected from amphoteric, anionic, cationic or nonionic surfactants, used alone or in mixtures. Preferably, the composition comprises at least one nonionic surfactant. Preferably, the composition comprises at least one anionic surfactant. Preferably, the composition comprises a combination of at least one nonionic surfactant and at least one anionic surfactant.

[0183] Examples of nonionic surfactants that can be used in the compositions of the invention include ethylene oxide adducts with polyethoxylated or polyglycerolated fatty alcohols, such as lauryl alcohol, in particular those containing 9 to 50 oxyethylene units (INCI names Laureth-9 to Laureth-50), in particular Laureth-9; esters of polyols with fatty acids, for example with saturated or unsaturated chains containing 8 to 24 carbon atoms, and their oxyalkylenated derivatives, i.e. those containing oxyethylene and / or oxypropylene units, such as glycerol and C8-C 24 Esters of fatty acids and their oxyalkylenated derivatives, in particular polyoxyethylenated glyceryl stearates (mono-, di- and / or tristearate), such as PEG-20 glyceryl triisostearate; esters of sugars and C8-C 24 Esters with fatty acids and their oxyalkylenated derivatives, e.g., C8-C 24 Polyethoxylated sorbitol esters of fatty acids, in particular polysorbate 80, such as the product sold under the name "TWEEN 80®" by Croda; sugars and C8-C 24Mention may be made of ethers with fatty alcohols, such as caprylyl / capryl glucoside; hydrophobized polysaccharides; polyoxyethylene alkyl ethers; polyoxyethyleneoxypropylene alkyl ethers; fatty acid alkanolamides; alkylamine oxides; alkyl polyglycosides, and silicone surfactants, such as polydimethylsiloxanes containing oxyethylene and / or oxypropylene groups, for example, PEG-10 dimethicone, bis-PEG / PPG-14 / 14 dimethicone, bis-PEG / PPG-20 / 20 dimethicone, and PEG / PPG-20 / 6 dimethicone; and polyglyceryl fatty acid esters, such as polyglyceryl-4 caprate, polyglyceryl-10 laurate, polyglyceryl-6 dicaprate, polyglyceryl-6 dioleate, polyglyceryl-6 caprylate, polyglyceryl-2 oleate, and polyglyceryl-6 polyricinoleate; and mixtures thereof.

[0184] Additionally, the nonionic surfactant may include alkyl polyglycosides represented by the following general formula (1): RO-(G) x (1) (wherein R represents a branched and / or unsaturated alkyl group containing 14 to 24 carbon atoms, G represents a reducing sugar containing 5 or 6 carbon atoms, x has a value ranging from 1 to 10, preferably from 1 to 4, and G represents, in particular, glucose, fructose, or galactose). Alkyl polyglycosides of this type include alkyl polyglucosides (G = glucose in formula (I)), in particular compounds of formula (I) [wherein R is more particularly an oleyl group (an unsaturated C 18 group) or isostearyl group (saturated C 18group), where G is glucose and x is a value in the range of 1 to 2], in particular isostearyl glucoside, oleyl glucoside and mixtures thereof. The alkyl polyglucosides can be used in mixtures with auxiliary emulsifiers, more particularly with fatty alcohols, in particular fatty alcohols having the same fatty chain as the alkyl polyglucoside, i.e., containing 14 to 24 carbon atoms and having a branched and / or unsaturated chain (for example, isostearyl alcohol when the alkyl polyglucoside is isostearyl glucoside, and oleyl alcohol when the alkyl polyglucoside is oleyl glucoside).

[0185] In addition, according to the invention, it is particularly advantageous to use fatty alcohols and alkyl polyglycosides together, the alkyl moiety of which is identical to that of the selected fatty alcohol. Among particularly preferred fatty alcohol / alkyl polyglycoside mixtures, mention may be made of the products sold by the company SEPPIC under the name Montanov®, such as the following mixtures: Cetylstearyl alcohol / cocoyl glucoside (Montanov 82®), arachidyl alcohol and behenyl alcohol / arachidyl glucoside (Montanov 802®), myristyl alcohol / myristyl glucoside (Montanov 14®), cetearyl alcohol / cetearyl glucoside (Montanov 68®), -C 14 ~C 22 Alcohol / C 12 ~C 20 Alkyl glucoside (Montanov L®), cocoyl alcohol / cocoyl glucoside (Montanov S®), and - Isostearyl alcohol / isostearyl glucoside (Montanov WO 18®).

[0186] In the hydrophobized polysaccharide, the polysaccharide can be selected from polyglucose or polyfructose. Preferred polyglucose is selected from cellulose, methylcellulose, hydroxyethylcellulose, amylose, amylopectin, and dextrin. Preferred polyfructose is inulin. In a preferred embodiment of the present invention, the hydrophobized polysaccharide as a nonionic surfactant is hydrophobized inulin.

[0187] In the hydrophobized polysaccharide, the hydrophobic chains that can be attached or grafted onto the polysaccharide backbone can be, in particular, linear or branched, saturated or unsaturated hydrocarbon chains having 1 to 50 carbon atoms, such as alkyl, arylalkyl, alkylaryl, and alkylene groups, divalent alicyclic groups, or organopolysiloxane chains. These hydrocarbon or organopolysiloxane chains can in particular contain one or more ester, amide, urethane, carbamate, thiocarbamate, urea, thiourea, and / or sulfonamide functional groups. In particular, illustrative but non-limiting examples of hydrophobized inulin that can be used in the compositions according to the invention include stearoyl inulin, sold for example under the name Lifidrem INST by Engelhard and Rheopearl INS by Ciba, palmitoyl inulin, undecylenoyl inulin sold for example under the name Lifidrem INUK and Lifidrem INUM by Engelhard, and inulin lauryl carbamate sold for example under the name Inutec SP1 by Orafti.

[0188] Examples of anionic surfactants that can be used in the compositions of the present invention include alkyl sulfates, alkyl ether sulfates, alkyl sulfonates, alkyl ether sulfonates, sulfate esters of alkylphenoxypolyoxyethyleneethanol, α-olefin sulfonates, β-alkyloxyalkene sulfonates, alkylaryl sulfonates, alkyl carbonates, succinamates, sulfosuccinates, sarcosinates, octoxynol or nonoxynol phosphates, taurates, fatty taurides, sulfated monoglycerides, fatty acid aminopolyoxyethylene sulfates, isethionates, alkylbenzenesulfonic acids, polyoxyethylene alkyl ether sulfates, polyoxyethylene alkyl ether carboxylic acids, and polyoxyethylene alkylamide ether carboxylic acids, and salts thereof.

[0189] Anionic surfactants are (C6-C 30 ) Alkyl sulfates, (C6-C 30 ) Alkyl ether sulfates, (C6-C 30 ) Alkyl amide ether sulfates, alkyl aryl polyether sulfates, monoglyceride sulfates; (C6-C 30 ) alkyl sulfonates, (C6-C 30 ) alkylamide sulfonates, (C6-C 30 ) Alkylaryl sulfonates, α-olefin sulfonates, paraffin sulfonates; (C6-C 30 ) Alkyl phosphate; (C6-C 30 ) Alkyl sulfosuccinate, (C6-C 30 ) Alkyl ether sulfosuccinate, (C6-C 30 ) Alkylamide sulfosuccinate; (C6-C 30 ) Alkyl sulfoacetate; (C6-C 24 ) Acyl sarcosinate; (C6-C 24 ) Acyl glutamate; (C6-C 30 ) Alkyl polyglycoside carboxyl ether; (C6-C 30 ) Alkyl polyglycoside sulfosuccinate; (C6-C 30) Alkyl sulfosuccinamate; (C6-C 24 ) acyl isethionate;N-(C6-C 24 ) Acyl taurate; C6~C 30 Fatty acid salts; coconut oil salts or hydrogenated coconut oil salts; (C8-C 20 ) Acyl lactylate; (C6-C 30 ) Alkyl-D-galactosiduronate; Polyoxyalkylenated (C6-C 30 ) Alkyl ether carboxylate; Polyoxyalkylenated (C6-C 30 ) alkyl aryl ether carboxylates; and polyoxyalkylenated (C6-C 30 ) alkyl amide ether carboxylates; and the corresponding acid forms.

[0190] In at least one embodiment, the anionic surfactant is in the form of a salt, such as an alkali metal (e.g., sodium) salt, an alkaline earth metal (e.g., magnesium) salt, an ammonium salt, an amine salt, and an amino alcohol salt. Under certain conditions, the anionic surfactant may be in the form of an acid.

[0191] Anionic surfactants are (C6-C 24 ) acyl glutamate, (C6-C 30 ) Alkyl sulfates, (C6-C 30 ) alkyl ether sulfates or chlorinated or non-chlorinated polyoxyalkylenated (C6-C 30 It is more preferable that the anionic surfactant is selected from (C6 to C) alkyl ether carboxylic acids. 24 ) sodium salts of acyl glutamates, such as sodium stearoyl glutamate.

[0192] The nonionic surfactant may be present in an amount of at least 0.1% by weight, preferably at least 0.5% by weight, more preferably at least 1% by weight, even more preferably at least 1.3% by weight, especially at least 1.5% by weight, and / or in an amount of at most 10% by weight, preferably at most 7% by weight, more preferably at most 5% by weight, especially at most 3% by weight, relative to the total weight of the composition.

[0193] The anionic surfactant may be present in an amount of at least 0.05% by weight, preferably at least 0.1% by weight, more preferably at least 0.15% by weight, even more preferably at least 0.2% by weight, and in particular at least 0.25% by weight, relative to the total weight of the composition, and / or in an amount of at most 5% by weight, preferably at most 3% by weight, more preferably at most 1% by weight, and in particular at most 0.5% by weight.

[0194] The surfactant may be present in an amount of at least 0.1% by weight, preferably at least 0.5% by weight, more preferably at least 1% by weight, even more preferably at least 1.5% by weight, especially at least 1.7% by weight, and / or in an amount of at most 15% by weight, preferably at most 10% by weight, more preferably at most 5% by weight, especially at most 3% by weight, relative to the total weight of the composition.

[0195] (thickener) The composition according to the present invention may contain at least one thickener different from components (a) and (b) of the present invention. Two or more thickeners may be combined. The thickener may be hydrophilic or lipophilic, preferably lipophilic.

[0196] The lipophilic thickener may be in the form of a polymer.

[0197] The lipophilic polymer thickener may be selected from carboxyvinyl polymers such as the Carbopol products (carbomers) and Pemulen products (acrylates / C10-C30 alkyl acrylate copolymers) or polymers with the INCI name "Poly C10-30 alkyl acrylate", such as the Intelimer® products from Air Products, for example the product Intelimer® IPA 13-1, which is a polystearyl acrylate, or the product 30 Intelimer® IPA 13-6, which is a behenyl polymer.

[0198] The amount of the thickener in the composition can be 0.1 to 10% by mass, preferably 0.2 to 5% by mass, and more preferably 0.3 to 3% by mass, relative to the total mass of the composition.

[0199] (hydrophilic organic solvent) The composition according to the present invention may comprise at least one cosmetically acceptable hydrophilic organic solvent.

[0200] The term "hydrophilic" as used herein refers to the degree of hydrophilicity at room temperature (25°C) and atmospheric pressure (10 5 "aqueous phase" refers to a substance having a solubility in water of at least 1 g / L, preferably at least 10 g / L, more preferably at least 100 g / L (p / a). Thus, cosmetically acceptable hydrophilic organic solvents, if present, are included in the aqueous phase.

[0201] Cosmetically acceptable hydrophilic organic solvents include, for example, substantially linear or branched lower monoalcohols having 1 to 8 carbon atoms, such as ethanol, propanol, butanol, isopropanol, and isobutanol; aromatic alcohols, such as benzyl alcohol and phenylethyl alcohol; polyols or polyol ethers, such as propylene glycol, dipropylene glycol, isoprene glycol, butylene glycol, glycerin, propanediol, pentylene glycol, caprylyl glycol, sorbitol, the monomethyl, monoethyl, and monobutyl ethers of ethylene glycol, propylene glycol ethers, the monomethyl ether of propylene glycol, diethylene glycol alkyl ethers, such as the monoethyl ether or monobutyl ether of diethylene glycol; polyethylene glycols, such as PEG-4, PEG-6, PEG-8, PEG-10, and PEG-20, and derivatives thereof, and combinations thereof.

[0202] The amount of cosmetically acceptable hydrophilic organic solvent in the composition according to the present invention may be 1% by weight or more, preferably 3% by weight or more, more preferably 5% by weight or more, especially 7% by weight or more, and / or 30% by weight or less, preferably 20% by weight or less, more preferably 15% by weight or less, relative to the total weight of the composition.

[0203] (filler) The composition according to the present invention may contain at least one filler. Two or more fillers may be combined. The filler may be inorganic or organic. The filler may also be silicone powder.

[0204] Inorganic fillers can include talc, mica, silica, hollow silica, magnesium aluminum silicate, trimethylsiloxysilicate or silica silicate, kaolin, bentone, calcium carbonate, magnesium bicarbonate, hydroxyapatite, boron nitride, fluorophlogopite, sericite, calcined talc, calcined mica, calcined sericite, synthetic mica, perlite, lauroyl lysine, metal soaps, bismuth oxychloride, barium sulfate, magnesium carbonate, and mixtures thereof, optionally treated to be hydrophilic or hydrophobic.

[0205] Examples of the organic filler include acrylic polymer powder, silicone powder, wax powder, polyamide powder, urethane polymer powder, tetrafluoroethylene polymer powder, polyacrylonitrile powder, poly-β-alanine powder, polyethylene powder, polytetrafluoroethylene powder, lauroyl lysine, starch, cellulose powder, tetrafluoroethylene polymer powder, and mixtures thereof.

[0206] Examples of silicone powders include organopolysilsesquioxane powders, organopolysiloxane powders, and silicone resin powders.

[0207] The amount of filler in the composition may be 0.1% by weight or more, preferably 0.5% by weight or more, more preferably 1% by weight or more, and 15% by weight or less, preferably 10% by weight or less, more preferably 5% by weight or less, based on the total weight of the composition.

[0208] (pH adjuster) The pH of the composition according to the invention can be adjusted to the desired value using at least one pH adjuster, such as an acidifying or basifying agent commonly used in cosmetics.

[0209] The pH of the composition according to the invention may be at 25°C 8.0 or less, preferably 7.0 or less, more preferably 6.0 or less, even more preferably 5.0 or less, in particular 4.5 or less, and / or 2.5 or more, preferably 3.0 or more, more preferably 3.5 or more, in particular 4.0 or more.

[0210] Among the acidifying agents, mention may be made by way of example of inorganic or organic acids, such as hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids, such as acetic acid, tartaric acid, citric acid and lactic acid, and sulfonic acids.

[0211] Among the basifying agents, examples include alkali metal or alkaline earth metal hydroxides, such as sodium hydroxide or potassium hydroxide; quaternary ammonium hydroxides and guanidine hydroxide; alkali metal silicates, such as sodium metasilicate; amino acids, preferably basic amino acids, such as arginine, lysine, ornithine, citrulline and histidine; carbonates and bicarbonates; organic alkaline agents, such as alkanolamines, such as mono-, di- and triethanolamine, and isopropanolamine; urea, guanidine and derivatives thereof; and compounds of the formula:

[0212] [ka]

[0213] (In the formula, W is a C1-C6 alkylene residue optionally substituted with a hydroxyl group or a C1-C6 alkyl group; Rx, Ry, Rz, and Rt may be the same or different and represent a hydrogen atom, a C1-C6 alkyl group, a C1-C6 hydroxyalkyl group, or a C1-C6 aminoalkyl group. Mention may in particular be made of 1,3-diaminopropane, 1,3-diamino-2-propanol, spermine and spermidine.

[0214] The pH adjuster may be used in an amount ranging from 0.001% to 10% by mass, preferably from 0.01% to 5% by mass, and more preferably from 0.1% to 3% by mass, relative to the total mass of the composition.

[0215] (auxiliary agent) The compositions according to the invention may also comprise any adjuvant normally used in the field of cosmetics, chosen, for example, from hydrophobic organic solvents, gums, resins, antioxidants (such as tocopherol), buffers, preservatives (such as phenoxyethanol), co-preservatives, opacifiers, fragrances, neutralizing agents, disinfectants, UV filters, stabilizers or electrolytes, sequestrants (such as trisodium ethylenediaminedisuccinate), dispersants, dyes and / or pigments, emollients or collagen protectants, and mixtures thereof.

[0216] The adjuvant may be present in the composition of the present invention in an amount ranging from 0.01% to 30% by weight, preferably from 0.1% to 20% by weight, more preferably from 0.5% to 10% by weight, relative to the total weight of the composition.

[0217] The compositions according to the present invention can be prepared by mixing the above essential and optional ingredients in a conventional manner, which may further include mixing any of the optional ingredients and heating the composition until the ingredients are dissolved.

[0218] [Cosmetic processes and methods] The present invention also relates to a non-therapeutic method or process, preferably a cosmetic method or process, more preferably a cosmetic method or process for the care and / or conditioning of keratinous materials such as the skin, scalp and lips, in particular the skin, comprising: (a) at least one associative polymer comprising one or more acrylic and / or methacrylic units; (b) at least one neutralized poly(meth)acrylic acid polymer; (c) at least one organic UV filter, and (d) at least one oil The present invention also relates to a method or process comprising the step of applying onto a keratinous material an oil-in-water composition comprising:

[0219] The same explanations as given above for the composition comprising (a) an associative polymer comprising one or more acrylic and / or methacrylic units, (b) a neutralized poly(meth)acrylic acid polymer, (c) an organic UV filter, and (d) an oil in the composition according to the present invention can also be applied to the composition comprising (a) an associative polymer comprising one or more acrylic and / or methacrylic units, (b) a neutralized poly(meth)acrylic acid polymer, (c) an organic UV filter, and (d) an oil in the methods and processes according to the present invention. The compositions used in the processes and methods according to the present invention may include any of the optional components described above for the compositions according to the present invention. [Example]

[0220] The present invention will now be described in more detail by way of examples, which should not be construed as limiting the scope of the present invention.

[0221] [Composition] The homogeneous solution compositions of the examples and comparative examples were prepared by mixing the components listed in Table 1 and Table 2. Specifically, in the first step, water and the components in the aqueous phase, i.e., the water-soluble and water-dispersible components, were mixed in water, and the mixture was heated to 75°C to obtain a homogeneous aqueous phase. Oil and the components in the oil phase, i.e., the oil-soluble and oil-dispersible components, were mixed in oil, and the mixture was heated to 75°C to obtain a homogeneous oil phase. The resulting oil phase was added to the aqueous phase, and the mixture was homogenized at 8000 rpm for 10 minutes at 75°C. The mixture was then cooled to below 45°C. Acrylates / Beheneth-25 methacrylate copolymer, sodium polyacrylate, carbomer, and / or ammonium acryloyldimethyltaurate / VP copolymer were added, and the mixture was homogenized at 8000 rpm for 10 minutes. Finally, triethanolamine or potassium hydroxide was added, and the mixture was homogenized at 7000 rpm for 5 minutes to obtain an emulsion composition. All values ​​for ingredient amounts shown in Table 1 and Table 2 are based on "mass %" of the active ingredient.

[0222] [Table 1A]

[0223] [Table 1B]

[0224] [Table 2]

[0225] [evaluation] (stability) 50 g of each emulsion composition obtained was placed in a 50 mL glass bottle and kept in an incubator at 55°C for one week. After cooling to room temperature, the appearance of each sample was observed with the naked eye. The stability of each composition was evaluated according to the following criteria.

[0226] Good: The emulsion morphology did not change. Poor: Oil leakage and / or cream separation observed

[0227] (Sticky analysis) The stickiness of each composition was measured using a texture analyzer TA.XT plus (manufactured by Stable Micro System) equipped with a 20 mm aluminum cylinder (P / 20). The measurement conditions were as follows:

[0228] Testing method: Compression Substrate: 30mm x 30mm flat Bioskin Sample: 20 mg of the composition applied evenly to the surface of Bioskin with a finger Probe: 20mm diameter cylinder Test speed: 0.1mm / s Distance: 2mm Force: 150g Count: 100 times

[0229] The average of 100 counts of negative force (g) was determined as the stickiness result, with a lower result meaning the composition became stickier.

[0230] (sensory test) 30 mg of each composition was applied with the fingers to a 30 mm x 30 mm area on and around the forearm of panel members (n=5). The stickiness and fresh, moisturizing sensation of each composition were evaluated according to the following criteria: - Sticky 1: Sticky 2: Slightly sticky 3: It is difficult to determine whether or not the product is sticky. 4: Slightly non-sticky 5: Not sticky at all - Fresh and refreshing feeling 1: No fresh, refreshing feeling at all 2: It lacks a refreshing feeling. 3: I can't tell if there's a fresh, refreshing feeling. 4: Rather refreshing and fresh feeling 5: Has a refreshing and refreshing feeling

[0231] The results are shown in Table 3 below. The results of the sensory test were expressed as the average score of the panel members.

[0232] [Table 3]

[0233] As can be seen from Table 3, the compositions according to the examples comprising a combination of (a) an associative polymer comprising one or more acrylic and / or methacrylic units and (b) a specific thickener of a neutralized poly(meth)acrylic acid polymer according to the invention, despite containing high concentrations of organic UV filters, exhibited an excellent skin feel in terms of stickiness and a fresh, moisturizing sensation.

[0234] On the other hand, the compositions according to the comparative examples, which did not contain the specific combination of (a) an associative polymer containing one or more acrylic and / or methacrylic units and (b) a neutralized poly(meth)acrylic acid polymer of invention 2, did not exhibit the improved fresh and refreshing sensation. In addition, the compositions according to comparative examples 3, 5, 7, and 8, which did not contain a sufficient amount of thickener, failed to exhibit emulsion-like stability.

[0235] Accordingly, it can be concluded that the compositions according to the invention are highly suitable as cosmetic compositions for the care and / or conditioning of keratinous materials such as the skin, since they are able to provide stability during application comparable to that of O / W emulsions and an improved skin feel, and are able to provide good UV protection due to the high concentration of organic UV filters.

Claims

1. (a) at least one associative polymer comprising one or more acrylic and / or methacrylic units and one or more units of an ester of a polyoxyalkylenated fatty alcohol and (meth)acrylic acid in an amount of from 0.05% to 3% by weight, relative to the total weight of the composition; (b) at least one neutralized water-soluble poly(meth)acrylic acid polymer in an amount of from 0.05% to 3% by weight, based on the total weight of the composition; (c) at least one organic UV filter in an amount of 20% by weight to 40% by weight, relative to the total weight of the composition; (d) at least one oil in an amount of from 1% to 20% by weight, based on the total weight of the composition; and (e) Combination of a nonionic surfactant and an anionic surfactant 1. An oil-in-water composition comprising:

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

3. 3. The composition of claim 1, wherein the (b) neutralized poly(meth)acrylic acid polymer is a crosslinked polymer.

4. 4. The composition of claim 1, wherein the (b) neutralized poly(meth)acrylic acid polymer is a homopolymer.

5. 5. The composition of claim 1, wherein the (b) neutralized poly(meth)acrylic acid polymer is partially neutralized.

6. 6. The composition of claim 1, wherein the amount of (a) associative polymer is 0.1% to 2% by weight, relative to the total weight of the composition.

7. 7. The composition according to claim 1, wherein the amount of (b) neutralized poly(meth)acrylic acid polymer is 0.1% by weight or more and 2% by weight or less, based on the total weight of the composition.

8. 8. The composition of claim 1, wherein the weight ratio of (a) the associative polymer to (b) the neutralized poly(meth)acrylic acid polymer in the composition is 0.5 or greater and 3 or less.

9. 9. The composition according to claim 1, wherein the amount of (c) organic UV filters is 35% by weight or less, relative to the total weight of the composition.

10. 10. The composition according to claim 1, wherein the amount of (d) oil is from 2% by weight to 15% by weight, relative to the total weight of the composition.

11. The composition according to claim 1 , further comprising water in an amount of 20% by weight to 70% by weight, based on the total weight of the composition.

12. A non-therapeutic cosmetic method for the care and / or conditioning of keratinous materials, comprising:

12. A method comprising the step of applying an oil-in-water composition according to any one of claims 1 to 11 onto keratinous materials.

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