Stable composition with excellent texture

Abstract

To provide a stable composition that can produce excellent textures such as a fresh, moist texture, a non-greasy texture, or a texture with reduced greasiness. [Solution] The present invention relates to a composition comprising (a) at least one organic UV shielding agent, (b) at least one associative polymer comprising one or more acrylic units and / or methacrylic units, and (c) at least one silica powder, wherein the amount of (c) silica powder in the composition is greater than 5% by mass, preferably 6% by mass or more, and more preferably 7% by mass or more, based on the total mass of the composition. The composition according to the present invention is stable and can provide an excellent texture.

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 can provide an excellent texture.

Background Art

[0002] Aged skin is the result of exceeding the accurate chronological age. The skin is exposed to various environmental stresses, such as UV (ultraviolet rays), which generate free radicals in the skin. Examples of free radicals include singlet oxygen, hydroxyl radical, superoxide anion, nitric oxide, and hydrogen radical. As a final result, the elasticity of the skin is lost, wrinkles appear, and early skin aging occurs. This process is generally called photoaging.

[0003] To date, many sunscreen compositions have been proposed for the purpose of protecting keratin substances such as the skin from ultraviolet rays. Sunscreen compositions generally contain one or more UV screening agents to shield ultraviolet rays. Some sunscreen compositions contain organic UV screening agents.

[0004] On the other hand, giving the skin a comfortable texture is one of the main features of cosmetics, especially skin cosmetics.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

Patent Document 6

[0006] [Non-licensed Document 1] Yotaro Morishima, Self-assembling amphiphilic polyelectrolytes and their nanostructures, Chinese Journal of Polymer Science, Volume 18, No. 40 (2000), Pages 323~336 [Non-licensed Document 2] Yotaro Morishima, 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, 2000, Volume 33, No. 10, Pages 3694~3704 [Non-licensed Document 3] Yotaro Morishima, Solution properties of micelle networks formed by nonionic moieties covalently bound to a polyelectrolyte: salt effects on rheological behavior, Langmuir, 2000, Volume 16, No. 12, Pages 5324~5332 [Non-licensed Document 4] Yotaro Morishima, 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 [Non-Patent Document 6] Cosmetics and Toiletries, Vol. 91, January 1976, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics [Overview of the project] [Problems that the invention aims to solve]

[0007] The use of organic UV-blocking agents in a composition often results in an unpleasant texture, such as a lack of freshness and an oily feel, because organic UV-blocking agents are similar to oils.

[0008] The object of the present invention is to provide a stable composition that can provide excellent textures such as a fresh texture, a non-greasy texture, or a texture with reduced greasiness. [Means for solving the problem]

[0009] The above objective of the present invention is, (a) at least one organic UV shielding agent, (b) at least one associative polymer comprising one or more acrylic units and / or methacrylic units, and (c) at least one type of silica powder A composition comprising, preferably a cosmetic composition, more preferably a skin cosmetic composition, This can be achieved by a composition, preferably a cosmetic composition, more preferably a skin cosmetic composition, in which the amount of (c) silica powder in the composition is more than 5% by mass, preferably 6% by mass or more, and more preferably 7% by mass or more, relative to the total mass of the composition.

[0010] (a) The organic UV shielding agent may be selected from lipophilic organic UV shielding agents.

[0011] (a) The organic UV shielding agent may be selected from the group consisting of triazine compounds, preferably ethylhexyl triazone, diethylhexyl butamide triazone, 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, 2,4-bis(n-butyl 4'-aminobenzoate)-6-(aminopropyltrisiloxane)-s-triazine, 3,3'-(1,4-phenylene)bis(5,6-diphenyl-1,2,4-triazine), and bis-ethylhexyloxyphenol methoxyphenyl triazine, and more preferably bis-ethylhexyloxyphenol methoxyphenyl triazine.

[0012] The amount of (a) organic UV shielding agent in the composition according to the present invention may be 1% to 30% by mass, preferably 3% to 25% by mass, and more preferably 5% to 20% by mass, based on the total mass of the composition.

[0013] (b) The associated polymer is one or more (meth)acrylic acids (C1-C1). 12 ) It may contain alkyl ester units.

[0014] (b) The associated polymer may contain one or more units derived from polyoxyalkylene fatty alcohols.

[0015] The amount of (b) associative polymer in the composition according to the present invention may be 0.01% to 15% by mass, preferably 0.05% to 10% by mass, and more preferably 0.1% to 5% by mass, based on the total mass of the composition.

[0016] (c) Silica may be selected from amorphous silica powder.

[0017] (c) The primary particles of the silica powder may be in the form of spherical particles, preferably spherical hollow or porous particles, more preferably spherical hollow particles.

[0018] The amount of (c) silica powder in the composition according to the present invention may be more than 5% by mass and 20% by mass or less, preferably 6% to 15% by mass, and more preferably 7% to 10% by mass, based on the total mass of the composition.

[0019] The composition according to the present invention may further contain (d) at least one oil.

[0020] The amount of (d) oil in the composition according to the present invention may be 1% to 40% by mass, preferably 5% to 35% by mass, and more preferably 10% to 30% by mass, based on the total mass of the composition.

[0021] The amount of inorganic UV shielding agent in the composition according to the present invention may be 2% by mass or less, preferably 1% by mass or less, and more preferably 0.1% by mass or less, based on the total mass of the composition.

[0022] The composition according to the present invention may form a transparent or translucent film, preferably a transparent film.

[0023] The present invention also relates to a cosmetic method for treating keratinous substances such as skin, comprising the step of applying a composition according to the present invention to the keratinous substance. [Modes for carrying out the invention]

[0024] As a result of diligent research, the inventors have discovered a new approach to providing a stable composition that can yield excellent textures, such as a fresh texture, a non-greasy texture, or a texture with reduced greasiness.

[0025] Therefore, one aspect of the present invention is: (a) at least one organic UV shielding agent, (b) at least one associative polymer comprising one or more acrylic units and / or methacrylic units, and (c) at least one type of silica powder A composition comprising, The composition is characterized in that the amount of (c) silica powder in the composition is greater than 5% by mass, preferably 6% by mass or more, and more preferably 7% by mass or more, based on the total mass of the composition.

[0026] The composition according to the present invention is stable and can provide excellent textures, such as a fresh texture and a non-greasy or reduced-greasy texture, during and after application, preferably after application.

[0027] The composition according to the present invention remains stable even under elevated temperatures, both immediately after preparation and over a long period thereafter. Therefore, the composition according to the present invention is stable over time and can be stored for extended periods, even under elevated temperatures, for example, in summer.

[0028] The composition according to the present invention can provide excellent textures such as a fresh texture and a non-greasy texture or a texture with reduced greasiness.

[0029] In this specification, the term "fresh texture" can be rephrased to mean a refreshing sensation.

[0030] The term "greasy texture" can be rephrased in this specification to mean an oily feel.

[0031] Therefore, the composition according to the present invention can provide an excellent feel during and after application of the composition, preferably after application.

[0032] In addition, the compositions according to the present invention can form transparent or translucent films, preferably transparent films. Therefore, the compositions according to the present invention can also provide aesthetic properties.

[0033] The compositions and other related materials according to the present invention will be described in more detail below.

[0034] [Composition] The composition according to the present invention is (a) at least one organic UV shielding agent, (b) at least one associative polymer comprising one or more acrylic units and / or methacrylic units, and (c) at least one type of silica powder Includes, The amount of (c) silica powder in the composition is more than 5% by mass, preferably 6% by mass or more, and more preferably 7% by mass or more, based on the total mass of the composition.

[0035] (Organic UV shielding agent) The composition according to the present invention comprises (a) at least one organic UV shielding agent. If two or more organic UV shielding agents are used, they may be the same or different.

[0036] In this specification, the term "UV" includes the UV-B region (wavelengths 260–320 nm) and the UV-A region (wavelengths 320–400 nm).

[0037] (a) Organic UV shielding agents may be active in the UV-A and / or UV-B region.

[0038] (a) The organic UV shielding agent may be in liquid or solid form as used herein. The term "solid" means that the substance is solid at atmospheric pressure (101325 Pa) and 25°C. The term "liquid" means that the substance is liquid at atmospheric pressure (101325 Pa) and 25°C.

[0039] (a) The organic UV shielding agent may be hydrophilic or lipophilic. In one preferred embodiment, (a) the organic UV shielding agent is selected from lipophilic organic UV shielding agents.

[0040] In this specification, the term "hydrophilic" means that a substance is soluble in water at a concentration of at least 1% by mass relative to the total mass of water at room temperature (25°C) and atmospheric pressure (101325 Pa).

[0041] In this specification, the term "lipophilic" means that a substance is soluble in oil at a concentration of at least 1% by mass relative to the total mass of the oil at room temperature (25°C) and atmospheric pressure (101325 Pa).

[0042] Examples of lipophilic organic UV shielding agents, though not limited to these, include triazine compounds, para-aminobenzoic acid compounds, benzylidene camphor compounds, phenylbenzimidazole compounds, imidazoline compounds, salicylic acid compounds, cinnamate compounds, β,β-diphenyl acrylate compounds, benzalmalonate compounds, merocyanine compounds, aminobenzophenone compounds, dibenzoylmethane compounds, anthranilic acid compounds, 4,4-diarylbutadiene compounds, phenylbenzotriazole compounds, benzophenone compounds, and benzoxazole compounds.

[0043] Examples of triazine compounds include ethylhexyl triazone, which is commercially available from BASF under the name "Uvinul(registered trademark) T-150", and SIGMA Diethylhexylbutamide triazone, 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, 2,4-bis(n-butyl 4'-aminobenzoate)-6-(aminopropyltrisiloxane)-s-triazine, 3,3'-(1,4-phenylene)bis(5,6-diphenyl-1,2,4-triazine) (INCI name: phenylenebis-diphenyltriazine), and BASF's trademark "Tinosorb® S" or DSM Nutritional This is bis-ethylhexyloxyphenol methoxyphenyl triazine, marketed by Products Inc. under the trademark "Parsol® Shield".

[0044] Examples of para-aminobenzoic acid derivatives include para-aminobenzoates (PABA), such as ethyl PABA (para-aminobenzoate), ethyl dihydroxypropyl PABA, ethylhexyldimethyl PABA (commercially sold by ISP under the name "Escarol® 5972"), glyceryl PABA and PEG-25 PABA (commercially sold by BASF under the name "Uvinul® P25"), and salts thereof.

[0045] Examples of benzylidene camphor compounds include terephthalylidene dicamphor sulfonic acid and its salts, such as those manufactured by Chimex under the name "Mexoryl(registered trademark) SX", 3-benzylidene camphor, commercially available from Chimex under the name "Mexoryl(registered trademark) SD", methylbenzylidene camphor, commercially available from Merck under the name "Eusolex(registered trademark) 6300", and polyacrylamide methylbenzylidene camphor, commercially available from Chimex under the name "Mexoryl(registered trademark) SW".

[0046] Examples of phenylbenzimidazole compounds include phenylbenzimidazole sulfonic acid, marketed by Merck under the name "Eusolex® 232," and disodium phenyldibenzimidazole tetrasulfonate, marketed by Symrise under the name "Neo Heliopan® AP."

[0047] An example of an imidazoline compound is ethylhexyl dimethoxybenzylidene dioxoimidazoline propionate.

[0048] Examples of salicylic acid compounds include homosalate, which is marketed by Merck under the name "Eusolex® HMS" and by DSM Nutritional Products under the name "Parsol® HMS," and ethylhexyl salicylate, which is marketed by Symrise under the name "Neo Heliopan® OS."

[0049] Examples of cinnamate compounds include ethylhexyl methoxy cinnamate and isopropyl ethoxycinnamate, which are commercially available from DSM Nutritional Products under the name "Parsol® MCX," and isoamyl methoxy cinnamate, diisopropyl methyl cinnamate, cinoxate, and glyceryl ethylhexanoate dimethoxy cinnamate, and DEA methoxy cinnamate, as well as their salts, which are commercially available from Symrise under the name "Neo Heliopan® E 1000."

[0050] Examples of β,β-diphenyl acrylate compounds include octocrylene, which is marketed by BASF under the name "Uvinul® N539," and etocrylene, which is marketed by BASF under the name "Uvinul® N35."

[0051] Examples of benzalmalonate compounds include polyorganosiloxanes containing a benzalmalonate moiety, such as polysilicone-15, which is commercially available from DSM Nutritional Products under the name "Parsol® SLX," and dineopentyl 4'-methoxybenzalmalonate.

[0052] An example of an aminobenzophenone compound is n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, which is also known as diethylaminohydroxybenzoyl hexyl benzoate (DHHB), sold by BASF under the trade name "Uvinul(registered trademark) A+".

[0053] Examples of dibenzoylmethane compounds include 4-isopropyldibenzoylmethane, sold by Merck under the name "Eusolex(registered trademark) 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 DSM Nutritional Products under the trade name "Parsol 1789".

[0054] An example of anthranilic acid compound is menthyl anthranilate, which is marketed by Symrise under the name "Neo Heliopan(registered trademark) MA".

[0055] Examples of 4,4-diarylbutadiene compounds include 1,1-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene, and diphenylbutadiene malonate and malononitrile.

[0056] Examples of phenylbenzotriazole compounds include drometrizole trisiloxane, marketed by Novell under the name "Mexoryl® XL," and methylenebis-benzotrizolyltetramethylbutylphenol, marketed by BASF under the name "Tinosorb® M" or by DSM Nutritional Products under the name "Parsol® Max."

[0057] Examples of benzophenone compounds include benzophenone-3 or oxybenzone, which are sold by BASF under the name "Uvinul(registered trademark) M40".

[0058] Examples of bisbenzoxazolyl compounds include those described in patent EP 669 323 and US 2,463,264, more specifically, disodium phenyldibenzimidazole tetrasulfonate and its salts, which are sold by Symrise under the trade name "Neo Heliopan® AP".

[0059] (a) Examples of organic UV shielding agents include, but are not limited to, at least one selected from triazine compounds, phenylbenzimidazole compounds, benzylidene camphor compounds, and bisbenzoxazolyl compounds.

[0060] (a) Salts of organic UV shielding agents that may be used include, in particular, salts of alkali metals, e.g., sodium or potassium; salts of alkaline earth metals, e.g., calcium, magnesium or strontium; salts of metals, e.g., zinc, aluminum, manganese or copper; and salts of formula NH4 + Salts of ammonium; salts of quaternary ammonium; salts of organic amines, for example, salts of methylamine, dimethylamine, trimethylamine, triethylamine, ethylamine, 2-hydroxyethylamine, bis(2-hydroxyethyl)amine or tris(2-hydroxyethyl)amine; salts of lysine or arginine may be selected.

[0061] (a) The organic UV shielding agent is preferably selected from triazine compounds, more preferably from the group consisting of ethylhexyl triazone, diethylhexyl butamide triazone, 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, 2,4-bis(n-butyl 4'-aminobenzoate)-6-(aminopropyltrisiloxane)-s-triazine, 3,3'-(1,4-phenylene)bis(5,6-diphenyl-1,2,4-triazine) and bis-ethylhexyloxyphenol methoxyphenyl triazine, and even more preferably bis-ethylhexyloxyphenol methoxyphenyl triazine.

[0062] The amount of (a) organic UV shielding agent in the composition according to the present invention may be 1% by mass or more, preferably 3% by mass or more, and more preferably 5% by mass or more, based on the total mass of the composition.

[0063] The amount of (a) organic UV shielding agent in the composition according to the present invention may be 30% by mass or less, preferably 25% by mass or less, and more preferably 20% by mass or less, based on the total mass of the composition.

[0064] The amount of (a) organic UV shielding agent in the composition according to the present invention may be 1% to 30% by mass, preferably 3% to 25% by mass, and more preferably 5% to 20% by mass, based on the total mass of the composition.

[0065] (Associative polymers) The compositions according to the present invention include (b) at least one associative polymer comprising one or more acrylic units and / or methacrylic units. If two or more such associative polymers are used, they may be the same or different.

[0066] (b) Associative polymers can function as thickeners.

[0067] For the purposes of this invention, the term "associative polymer" refers to a homopolymer or copolymer that can reversibly combine with each other or with other molecules in an aqueous medium.

[0068] The (b) associative polymer used in the present invention is preferably an associative copolymer of one or more acrylic units and / or methacrylic units with other units.

[0069] (b) The associated polymer more specifically 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 chain comprising at least 10 carbon atoms, preferably 10 to 30 carbon atoms, particularly 12 to 30 carbon atoms, and more preferably 16 to 30 carbon atoms.

[0070] For the purposes of the present invention, (b) an associated polymer comprising one or more acrylic units 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 associated polymer may also comprise further units, such as units formed by acrylic acid or methacrylic acid containing fewer than six carbon atoms, preferably alkyl esters of acrylic acid, selected from C1-C4 alkyl acrylates, such as methyl acrylate, ethyl acrylate and butyl acrylate (hereinafter referred to as "simple esters").

[0071] In one preferred embodiment of the present invention, (b) the associated polymer used in the present invention is one or more (meth)acrylic acids (C1-C1). 12 ) comprising alkyl ester units, more preferably one or more (meth)acrylic acid (C1-C6) alkyl ester units.

[0072] 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.

[0073] In certain embodiments, (b) the associated polymer may include other units derived from a monomer 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 polyoxyalkylene fatty alcohols. Preferably, the fatty alcohol portion of the ester monomer is linear or branched, preferably linear, and saturated or unsaturated, preferably saturated (C 12 ~C 30 ) fatty alcohols, especially (C 16 ~C 26 ) may be a fatty alcohol. The polyoxyalkylene chain of the ester monomer preferably consists of ethylene oxide units and / or propylene oxide units, and more specifically, consists of ethylene oxide units. The number of oxyalkylene units is generally in the range of 3 to 100, preferably 7 to 50, and more preferably 12 to 30.

[0074] (b) An example of an associative polymer is, for example, a product sold by LUBRIZOL under the trade name: NOVETHIX L-10 POLYMER (registered trademark) (INCI name: acrylate / beheneth-25 methacrylate copolymer), A product sold by DOW CHEMICAL under the trade name: Aculyn(registered trademark) 28 (INCI name: acrylate / beheneth-25 methacrylate copolymer), Products sold by DOW CHEMICAL under the trade name: Aculyn® 22 (INCI name: Acrylate / Steareth-20 Methacrylate Copolymer), products sold by DOW CHEMICAL under the trade name: Aculyn® 88 (INCI name: Acrylate / Steareth-20 Methacrylate Crosspolymer), products sold by AKZO NOBEL under the trade name: STRUCTURE® 2001 (INCI name: Acrylate / Steareth-20 Itaconate Copolymer), and products sold by AKZO NOBEL under the trade name: STRUCTURE® 3001 (INCI name: Acrylate / Ceteareth-20 Itaconate Copolymer).

[0075] The (b) associative polymer that can be used in the present invention may also be selected from anionic associative (co)polymers containing acrylic units and / or methacrylic units.

[0076] The anionic associative (co)polymer of (meth)acrylic acid that can be used in the present invention contains at least one hydrophilic unit of an unsaturated olefinic carboxylic acid type and at least one hydrophobic unit of a type such as (C 10 ~C 30 ) alkyl ester, etc., and may be selected from such polymers.

[0077] More specifically, these (meth)acrylic acid associative (co)polymers preferably have a hydrophilic unit of an unsaturated olefinic carboxylic acid type represented by the following formula (I):

[0078] [Chemical formula]

[0079] [In the formula, R 1 represents H or CH3, that is, an acrylic acid unit or a methacrylic acid unit] corresponds to the monomer of, and the (C10 ~C 30 The hydrophobic unit of the alkyl ester is given by the following formula (II):

[0080] [ka]

[0081] [In the formula, R 1 R represents H or CH3 (i.e., acrylate unit or methacrylate unit), 2 C 10 ~C 30 Preferably C 12 ~C 22 [Indicates an alkyl group] It is selected from the monomer equivalents.

[0082] (C) of unsaturated carboxylic acids according to formula (II) 10 ~C 30 More specifically, examples of alkyl esters include lauryl acrylate, stearyl acrylate, decyl acrylate, isodecyl acrylate, and dodecyl acrylate, as well as their corresponding methacrylic acid esters: lauryl methacrylate, stearyl methacrylate, decyl methacrylate, isodecyl methacrylate, and dodecyl methacrylate.

[0083] This type of (meth)acrylic acid-associated (co)polymer is described, for example, in patents US 3 915 921 and US 4 509 949, and is prepared according to them.

[0084] The (meth)acrylic acid-associated (co)polymers that can be used in the present invention may more specifically refer to polymers formed from a mixture of monomers including: (i) Acrylic acid and one or more of the following formulas (III):

[0085] [ka]

[0086] [In the formula, R 3 This represents H or CH3, and R 4 This represents an alkyl group having 12 to 22 carbon atoms. Esters of, and optionally crosslinking agents, for example, 95% to 60% by mass of acrylic acid (hydrophilic units), and 4% to 40% by mass of C 10 ~C 30 It consists of alkyl acrylate (hydrophobic units) and 0-6% by mass of crosslinkable polymerizable monomer, or 98-96% by mass of acrylic acid (hydrophilic units) and 1-4% by mass of C 10 ~C 30 A compound consisting of alkyl acrylate (hydrophobic unit) and 0.1% to 0.6% by mass of a crosslinkable polymerizable monomer, or (ii) Essentially, a product formed from acrylic acid and lauryl methacrylate, for example, 66% by mass of acrylic acid and 34% by mass of lauryl methacrylate.

[0087] In these embodiments of the present invention, the term "crosslinking agent" is defined as follows:

[0088] [ka]

[0089] This can mean monomers containing at least one other polymerizable group, where the unsaturated bonds of the monomers are not conjugated to one another. Examples of crosslinking agents that can be used in the present invention include, in particular, polyallylsucrose and polyallyl ethers such as polyallylpentaerythritol.

[0090] Among the (meth)acrylic acid-associated (co)polymers mentioned above, those particularly preferred for the present invention are the products sold by Goodrich under the trademark names Pemulen TR1, Pemulen TR2, and Carbopol 1382, and more preferably Pemulen TR1 and the product sold by SEPC under the name Coatex SX.

[0091] As an example of a (meth)acrylic acid-associated (co)polymer, we can also mention the copolymer of methacrylic acid / methyl acrylate / ethoxylated alcohol dimethyl-meth-isopropenylbenzyl isocyanate, sold by Amerchol under the name Viscophobe DB 1000.

[0092] Other (meth)acrylic acid-associated (co)polymers that can be used in the present invention may also be sulfonic acid polymers comprising at least one (meth)acrylic acid monomer having sulfone groups in a free form or in a partially or completely neutralized form, and comprising at least one hydrophobic moiety.

[0093] The hydrophobic portion present in the sulfonic acid polymer that can be used in the present invention preferably contains 8 to 22 carbon atoms, more preferably 8 to 18 carbon atoms, and more specifically 12 to 18 carbon atoms.

[0094] Preferably, these sulfonic acid polymers that can be used in the present invention are partially or completely neutralized with an inorganic base (sodium hydroxide, potassium hydroxide, or aqueous ammonia) or with an organic base such as mono-, di-, or triethanolamine, aminomethylpropanediol, N-methylglucamine, basic amino acids such as arginine and lysine, or mixtures thereof.

[0095] 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 more preferably in the range of 100,000 to 1,500,000 g / mol.

[0096] The sulfonic acid polymer used in the present invention may be crosslinked or not. A crosslinked polymer is preferred.

[0097] If crosslinked, the crosslinking agent may be selected from polyolefinic unsaturated compounds commonly used to crosslink polymers obtained by free radical polymerization. Examples include divinylbenzene, diallyl ethers, dipropylene glycol diallyl ethers, polyglycol diallyl ethers, triethylene glycol divinyl ethers, hydroquinone diallyl ethers, ethylene glycol diacrylate di(meth)acrylate or tetraethylene glycol diacrylate di(meth)acrylate, trimethylolpropane triacrylate, methylene bisacrylamide, methylene bismethacrylamide, triallylamine, triallyl cyanurate, diallyl maleate, tetraallylethylenediamine, tetraallyloxyethane, trimethylolpropane diallyl ether, (meth)acrylate, allyl ethers of sugar-series alcohols, or other allyl or vinyl ethers of polyfunctional alcohols, as well as allyl esters of phosphoric acid and / or vinylphosphonic acid derivatives, or mixtures of these compounds.

[0098] Methylenebisacrylamide, allyl methacrylate, or trimethylolpropane triacrylate (TMPTA) are used more specifically.

[0099] The degree of crosslinking is generally in the range of 0.01 mol% to 10 mol%, and more specifically, 0.2 mol% to 2 mol%, relative to the polymer.

[0100] (Meth)acrylic acid monomers having sulfonic acid groups that can be used in the present invention include, in particular, (meth)acrylamide (C1-C 22 ) Alkyl sulfonic acid and N-(C1~C 22 )Alkyl (meth)acrylamide (C1~C 22 ) Selected from alkyl sulfonic acids, for example from undecyl acrylamide methanesulfonic acid, and from partially or completely neutralized forms thereof.

[0101] (meth)acrylamide (C1~C 22Alkyl sulfonic acids, such as acrylamide methanesulfonic acid, acrylamide ethanesulfonic acid, acrylamide propanesulfonic acid, 2-acrylamide-2-methylpropanesulfonic acid, methacrylamide-2-methylpropanesulfonic acid, 2-acrylamide-n-butanesulfonic acid, 2-acrylamide-2,4,4-trimethylpentanesulfonic acid, 2-methacrylamide dodecylsulfonic acid, or 2-acrylamide-2,6-dimethyl-3-heptanesulfonic acid, and partially or completely neutralized forms thereof, are used more preferentially. 2-acrylamide-2-methylpropanesulfonic acid (AMPS), and partially or completely neutralized forms thereof, are used even more specifically.

[0102] The (meth)acrylic acid-associating thickeners that can be used in the present invention are C6-C 22 n-monoalkylamine or C6-C 22 Random amphiphilic AMPS polymers modified by reaction with di-n-alkylamines may be particularly selected from those described in, for example, patent application WO 00 / 31154 (forming an essential part of the description).

[0103] These polymers may also contain other ethylenically unsaturated hydrophilic monomers selected from, for example, (meth)acrylic acid, its β-substituted alkyl derivatives, or esters thereof obtained by monoalcohols or mono- or polyalkylene glycols, (meth)acrylamide, vinylpyrrolidone, maleic anhydride, itaconic acid or maleic acid, or mixtures thereof.

[0104] A (meth)acrylic acid-associating thickener having a sulfonic acid group, which can be particularly preferred for use in the present invention, is preferably selected from an amphiphilic copolymer of AMPS and at least one ethylenically unsaturated hydrophobic monomer containing at least one hydrophobic moiety containing 8 to 50 carbon atoms, more preferably 8 to 22 carbon atoms, even more preferably 8 to 18 carbon atoms, and more specifically 12 to 18 carbon atoms.

[0105] These same copolymers may also contain one or more ethylenically unsaturated monomers that do not contain fatty chains, such as (meth)acrylic acid, its β-substituted alkyl derivatives, or esters thereof obtained by monoalcohols or mono- or polyalkylene glycols, (meth)acrylamide, vinylpyrrolidone, maleic anhydride, itaconic acid, or maleic acid, or mixtures of these compounds.

[0106] These copolymers are described, among other things, in patent application EP-A-750 899, patent US5 089 578 and 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, 2000, Vol. 33, No. 10, 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.

[0107] The ethylenically unsaturated hydrophobic monomers of these particular copolymers are preferably of the following formula (IV):

[0108] [ka]

[0109] [In the formula, R 5 and R 7 These 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, and R 6 [where x represents a hydrophobic hydrocarbon group containing at least 8 to 50 carbon atoms, more preferably 8 to 22 carbon atoms, even more preferably 6 to 18 carbon atoms, and more specifically 12 to 18 carbon atoms, where x represents the number of moles of alkylene oxide, in the range of 0 to 100] Selected from acrylic acid esters or acrylamides.

[0110] R 6 The group is preferably a linear C6-C 18 Alkyl groups (e.g., n-hexyl, n-octyl, n-decyl, n-hexadecyl, n-dodecyl), or branched or cyclic C6-C6 18 Alkyl alkyl groups (for example, cyclododecane (C) 12 ) or adamantane (C 10 ));C6~C 18 Perfluoroalkyl groups (e.g., groups of formula -(CH2)2-(CF2)9-CF3); Cholesteryl groups (C 27) or cholesterol ester residues, such as the cholesteryl oxyhexanoate group; or aromatic polycyclic groups, such as naphthalene or pyrene, which are selected from these. Among these groups, linear alkyl groups are more particularly preferred, and more specifically, n-dodecyl groups.

[0111] According to a particularly preferred embodiment of the present invention, the monomer of formula (IV) comprises at least one alkylene oxide unit (x≧1), preferably a polyoxyalkylene chain. The polyoxyalkylene chain preferably consists of ethylene oxide units and / or propylene oxide units, and more specifically, ethylene oxide units. The number of oxyalkylene units is generally in the range of 3 to 100, more preferably 3 to 50, and even more preferably 7 to 25.

[0112] Among these polymers, the following can be listed: - 15% to 60% by mass of AMPS units relative to the polymer and 40% to 85% by mass of (C8 to C8) 16 ) Alkyl (meth)acrylamide units or (C8~C 16 ) copolymers containing alkyl (meth)acrylate units, which may be crosslinked or uncrosslinked and neutralized or unneutralized, 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~C) 18 ) A terpolymer containing alkylacrylamide units, for example, as described in Japanese Patent US-5 089 578.

[0113] Examples include fully neutralized copolymers of AMPS and dodecyl methacrylate, as well as crosslinked and uncrosslinked copolymers of AMPS and n-dodecylmethacrylamide, such as those described in the aforementioned Morishima paper.

[0114] The following equation (V):

[0115] [ka]

[0116] [In the formula, X + [These are protons, alkali metal cations, alkaline earth metal cations, or ammonium ions.] The 2-acrylamido-2-methylpropanesulfonic acid (AMPS) unit and The following equation (VI):

[0117] [ka]

[0118] [In the formula, x represents an integer in the range of 3 to 100, preferably 5 to 80, more preferably 7 to 25, R 5 This has the same meaning as shown in equation (IV) above, and R 8 C6~C is linear or branched. 22 C is preferred. 10 ~C 22 [Indicates alkyl] Examples include copolymers composed of units of .

[0119] The preferred polymer is x=25, R 5 R indicates methyl, 8 These represent n-dodecyl, and these are described in the Morishima paper mentioned above.

[0120] Furthermore, in equation (IV), x = 20 to 25, and R 5 R indicates methyl, 8 C 12 ~C 24 The use of monomers representing alkyl groups, preferably, for example, lauryl, myristyl, palmityl, stearyl, or behenyl groups, is particularly preferred. In particular, x = 20-25, and R 5 R indicates methyl, 8 C 16 ~C 24The use of alkyl chains, such as monomers of formula (IV) representing a stearyl group or a behenyl group, is particularly preferred.

[0121] X + Polymers in which sodium or ammonium is present are more specifically preferred.

[0122] The amount of (b) associative polymer in the composition according to the present invention may be 0.01% by mass or more, preferably 0.05% by mass or more, and more preferably 0.1% by mass or more, based on the total mass of the composition.

[0123] The amount of (b) associative polymer in the composition according to the present invention may be 15% by mass or less, preferably 10% by mass or less, and more preferably 5% by mass or less, based on the total mass of the composition.

[0124] The amount of (b) associative polymer in the composition according to the present invention may be 0.01% to 15% by mass, preferably 0.05% to 10% by mass, and more preferably 0.1% to 5% by mass, based on the total mass of the composition.

[0125] (Silica powder) The composition according to the present invention comprises (c) at least one silica powder. If two or more silica powders are used, they may be the same or different.

[0126] (c) The silica powder can be selected from silicate powder, amorphous silica powder, precipitated silica powder, porous silica powder, calcined silica powder, fumed silica powder, hollow silica powder, silica gel, silica aerogel, and combinations thereof. Preferably, the silica powder is selected from porous silica powder, hollow silica powder, and precipitated silica powder.

[0127] (c) The silica powder is preferably selected from amorphous silica powder.

[0128] The silica powder (c) used in the composition according to the present invention may or may not be surface-treated with a surface treatment agent. Preferably, the silica powder used in the composition according to the present invention is not surface-treated with a surface treatment agent.

[0129] Therefore, (c) the silica powder may be hydrophilic or hydrophobic, and preferably hydrophilic.

[0130] (c) The silica powder may have an average primary particle size of 30 μm or less, preferably 25 μm or less, more preferably 20 μm or less, even more preferably 15 μm or less, and particularly 10 μm or less. When used herein, the term "average primary particle size" refers to the volume-average size mean diameter given by the statistical particle size distribution for half of the population. 50 This is referred to as [a specific term]. For example, the volume-average particle size can be measured using a laser diffraction particle size distribution analyzer, such as the Mastersizer 2000 from Malvern Corp.

[0131] (c) The primary particles of the silica powder are preferably in the form of spherical particles, more preferably in the form of spherical hollow or porous particles, and more preferably spherical hollow particles.

[0132] (c) Silica powder is 1 to 1,000 m 2 / g, preferably 1 to 950m 2 / g, more comfortably 1-900m 2 It may have a specific surface area in the range of / g.

[0133] (c) The silica powder may have a specific pore volume in the range of 0.5 to 4 ml / g, preferably 0.6 to 3 ml / g, and more preferably 0.7 to 2 ml / g.

[0134] (c) The silica powder can be selected from silica powders with particularly high oil absorption capacity, such as porous silica powder, hollow silica powder, silylated silica powder, or precipitated silica powder. (c) The silica powder preferably has an oil absorption capacity of at least 0.1 ml / g, preferably at least 0.3 ml / g, and more preferably at least 0.5 ml / g. The oil absorption capacity of silica can be measured by conventional methods for those skilled in the art.

[0135] (c) Examples of silica powder include: - Porous silica microspheres, particularly those sold by Asahi Glass under the names Sunsphere® H53 (approximately 4.0 ml / g oil absorption), Sunsphere® H51 (approximately 1.50 ml / g oil absorption), Sunsphere® H33 (approximately 4.0 ml / g oil absorption), as well as Solesphere® H31 (approximately 1.50 ml / g oil absorption), Solesphere® H51 (approximately 1.50 ml / g oil absorption), and Solesphere® H52 (approximately 3.0 ml / g oil absorption); and those sold by Kobo under the name MSS-500-3H. - Hollow silica particles, in particular those sold by Kobo under the name Silica Shells (oil absorption capacity equal to 5.50 ml / g); and BA4 manufactured by JGC (oil absorption capacity of approximately 0.5 ml / g), - Precipitated silica powder surface-treated with mineral wax, for example, precipitated silica treated with polyethylene wax, in particular, the one sold by Evonik-Degussa under the name Acematt OR 412 (oil absorption capacity equal to 3.98 ml / g).

[0136] The amount of (c) silica powder in the composition according to the present invention is more than 5% by mass, preferably 6% by mass or more, and more preferably 7% by mass or more, based on the total mass of the composition.

[0137] The amount of (c) silica powder in the composition according to the present invention may be 20% by mass or less, preferably 15% by mass or less, and more preferably 10% by mass or less, based on the total mass of the composition.

[0138] The amount of (c) silica powder in the composition according to the present invention may be more than 5% by mass and 20% by mass or less, preferably 6% to 15% by mass, and more preferably 7% to 10% by mass, based on the total mass of the composition.

[0139] (oil) The composition according to the present invention may (d) contain at least one oil. If two or more oils are used, they may be the same or different.

[0140] (d) Oil is different from (a) organic UV shielding agents.

[0141] Here, "oil" refers to fatty compounds or fatty substances that are in liquid or paste (non-solid) form at atmospheric pressure (760 mmHg) and room temperature (25°C). Oils commonly used in cosmetics can be used alone or in combination. These oils may be volatile or non-volatile.

[0142] (d) The oil may be a non-polar oil such as hydrocarbon oil or silicone oil; a polar oil such as vegetable oil or animal oil and ester oil or ether oil; or a mixture thereof.

[0143] (d) The oil may be selected from the group consisting of plant or animal oils, synthetic oils, silicone oils, hydrocarbon oils, and fatty alcohols.

[0144] Examples of vegetable oils include, for instance, linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

[0145] Examples of animal oils include, for instance, squalene and squalane.

[0146] Examples of synthetic oils include alkane oils, such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

[0147] Ester oils are preferably saturated or unsaturated, linear or branched C1-C123. 26 Aliphatic monoacid or polyacid and saturated or unsaturated linear or branched C1-C12 chains. 26 It is a liquid ester of an aliphatic monoalcohol or polyalcohol, and the total number of carbon atoms in these esters is 10 or more.

[0148] Preferably, in the case of a monoalcohol ester, at least one of the alcohol and acid from which the ester is derived is branched.

[0149] Among monoesters of monoacids and monoalcohols, examples include ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristate, for example isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, and isostearyl neopentanoate.

[0150] C4~C 22 Dicarboxylic acid or tricarboxylic acid and C1-C 22 Esters with alcohols, as well as monocarboxylic acids, dicarboxylic acids or tricarboxylic acids, and nonsugars C4-C 26 Esters with dihydroxy, trihydroxy, tetrahydroxy, or pentahydroxy alcohols may also be used.

[0151] In particular, 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 trilactic acid, glyceryl trioctanoate, trioctyldodecyl citrate, trioleyl citrate, neopentyl glycol diheptanoate, and diethylene glycol diisononanoate.

[0152] As ester oils, C6~C 30 Preferably C 12 ~C 22 Sugar esters and diesters of fatty acids can be used. The term "sugar" is meant to mean an oxygen-sparing hydrocarbon compound having or not having an aldehyde or ketone functional group, containing several alcohol functional groups, and containing at least four carbon atoms. These sugars may be monosaccharides, oligosaccharides, or polysaccharides.

[0153] Suitable examples of sugars that can be listed include sucrose (or sucrose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, and lactose, as well as their derivatives, particularly alkyl derivatives such as methyl derivatives, for example, methyl glucose.

[0154] Fatty acid sugar esters are, in particular, the aforementioned sugars and linear or branched, saturated or unsaturated C6-C6 fatty acids. 30 Preferably C 12 ~C 22 The group may be selected from those comprising esters or ester mixtures with fatty acids. If they are unsaturated, these compounds may have 1 to 3 conjugated or unconjugated carbon-carbon double bonds.

[0155] Esters in this modified form can also be selected from monoesters, diesters, triesters, tetraesters, and polyesters, as well as mixtures thereof.

[0156] These esters may be, for example, oleic acid esters, lauric acid esters, palmitic acid esters, myristic acid esters, behenic acid esters, coconut fatty acid esters, stearic acid esters, linoleic acid esters, linolenic acid esters, capric acid esters and arachidonic acid esters, or mixtures thereof, for example, particularly mixed esters of oleopalmitic acid, oleostearic acid and palmitostearic acid, and pentaerythrityl tetraethylhexanoate.

[0157] More specifically, monoesters and diesters, particularly monooleates or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenicates, and oleostearates of sucrose, glucose, or methyl glucose, are used.

[0158] One example that can be cited is the product sold by Amerchol under the name Glucate(registered trademark)DO, which is methyl glucose dioleate.

[0159] Examples of preferred ester oils include, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, (caprylic / capric acid) 2-ethylhexyl, methyl palmitate, ethyl palmitate, isopropyl palmitate, and dicarbonate. Examples include prilyl, 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), ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

[0160] Examples of artificial triglycerides include, for instance, caprylcaprylyl glyceride, glyceryl trimyristicate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, tri(caprate / caprylic acid)glyceryl, and tri(caprate / caprylic acid / linolenic acid)glyceryl.

[0161] Examples of silicone oils include, for example, linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; and mixtures thereof.

[0162] Preferably, the silicone oil is selected from liquid polydialkylsiloxanes, particularly liquid polydimethylsiloxane (PDMS), and liquid polyorganosiloxanes containing at least one aryl group.

[0163] These silicone oils may also be organically modified. Organically modified silicones that can be used for the present invention are silicone oils defined above and containing one or more organic functional groups bonded in their structure via hydrocarbon groups.

[0164] Organopolysiloxanes are defined in more detail in Walter Noll's *Chemistry and Technology of Silicones* (1968), Academic Press. They may be volatile or non-volatile.

[0165] If these are volatile, the silicone is selected more specifically from those with a boiling point between 60°C and 260°C, and more specifically from the following: (i) Cyclic polydialkylsiloxanes containing 3 to 7, preferably 4 to 5, silicon atoms. These include, for example, octamethylcyclotetrasiloxane sold by Union Carbide under the name Volatile Silicone® 7207, or by Rhodia under the name Silbione® 70045 V2, decamethylcyclopentasiloxane sold by Union Carbide under the name Volatile Silicone® 7158, by Rhodia under the name Silbione® 70045 V5, and dodecamethylcyclopentasiloxane sold by Momentive Performance Materials under the name Silsoft 1217, as well as mixtures thereof. Cyclocopolymers of the type dimethylsiloxane / methylalkylsiloxane, for example, the following formula:

[0166] [ka]

[0167] Another example is Silicone Volatile (registered trademark) FZ 3109, sold by Union Carbide.

[0168] Other examples include mixtures of cyclic polydialkylsiloxanes and organosilicon compounds, such as a mixture of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50 / 50), 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 is 5 × 10 at 25°C -6 m 2 Linear volatile polydialkylsiloxanes with a viscosity of less than / s. An example is decamethyltetrasiloxane, sold by Toray Silicone under the name SH 200. Silicones belonging to this category are also described in the paper published in Cosmetics and Toiletries, Vol. 91, January 1976, pp. 27-32, by Todd & Byers, in Volatile Silicone Fluids for Cosmetics. The viscosity of silicones is measured at 25°C according to ASTM Standard 445 Appendix C.

[0169] Non-volatile polydialkylsiloxanes can also be used. These non-volatile silicones are selected more specifically from polydialkylsiloxanes, among which polydimethylsiloxanes containing trimethylsilyl terminal groups are the most notable.

[0170] Among these polydialkylsiloxanes, the following commercially available products can be listed without limitation: - Silbione® oils 47 and 70 047 series or Mirasil® oils sold by Rhodia, for example, 70 047 V 500 000 oil. - Mirasil® series oils sold by Rhodia, - Dow Corning's 200 series oil, for example, 60,000 ml 2 DC200 having a viscosity of / second, and - Viscasil® oil manufactured by General Electric, and certain oils in the SF series manufactured by General Electric (SF 96, SF 18).

[0171] Polydimethylsiloxanes containing dimethylsilanol terminal groups, known by the name dimethiconol (CTFA), such as the 48 series oils from Rhodia, can also be mentioned.

[0172] Among silicones containing aryl groups, polydiarylsiloxanes, particularly polydiphenylsiloxanes and polyalkylarylsiloxanes, such as phenyl silicone oil, can be cited.

[0173] Phenylsilicone oil has the following formula:

[0174] [ka]

[0175] (In the formula, R1~R 10 These are, independently of each other, saturated or unsaturated, linear, cyclic or branched C1-C12 30 Hydrocarbon groups, preferably C1-C 12 A hydrocarbon group, more preferably a C1-C6 hydrocarbon group, particularly a methyl, ethyl, propyl, or butyl group. m, n, p, and q are independent integers between 0 and 900, preferably between 0 and 500, and more preferably between 0 and 100, including both ends. (However, the sum n+m+q is non-zero.) You may choose from phenyl silicones.

[0176] Examples that can be given include products sold under the following names: - Silbione® oil 70 641 series manufactured by Rhodia, - Rhodorsil® 70 633 series and 763 series oils manufactured by Rhodia. - Dow Corning 556 Cosmetic Grade Fluid oil manufactured by Dow Corning, - Bayer's PK series silicones, for example, product PK20, - Specific oils from General Electric's SF series, such as SF 1023, SF 1154, SF 1250, and SF 1265.

[0177] As phenyl silicone oil, phenyl trimethicone (in the above formula, R1 to R 10 (where is methyl, and p, q, and n = 0, and m = 1) is preferred.

[0178] Hydrocarbon oils can be selected from the following: - Linear or branched, optionally cyclic C5-C 19 Alkanes. Examples that can be cited include hexane, undecane, dodecane, tridecane, and isoparaffins, including isohexadecane, isododecane, and isodecane, as well as - Linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petroleum jelly, polydecene and hydrogenated polyisobutene, such as Parleam®, and squalane.

[0179] Preferred examples of hydrocarbon oils include, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (e.g., liquid paraffin), paraffin, petrolatum or petrolatum, naphthalene, etc.; hydrogenated polyisobutene, isoeicosane, and decene / butene copolymers; and mixtures thereof.

[0180] The term "fatty" in fatty alcohols refers to the inclusion of a relatively large number of carbon atoms. Therefore, alcohols having 6 or more, preferably 8 or more, and more preferably 10 or more carbon atoms are included in the range of fatty alcohols. Fatty alcohols may be saturated or unsaturated. Fatty alcohols may be linear or branched.

[0181] The fatty alcohol may have the structure R-OH (wherein R is selected from saturated and unsaturated linear and branched groups containing 6 to 30 carbon atoms, preferably 8 to 28 carbon atoms, more preferably 10 to 26 carbon atoms). In at least one embodiment, R is C 12 ~C 24 Alkyl and C 12 ~C 24 It can be selected from alkenyl groups. R may or may not be substituted with at least one hydroxyl group.

[0182] Examples of fatty alcohols include lauryl alcohol, hexyldecanol, oleyl alcohol, isostearyl alcohol, octyldodecanol, decyltetradecanol, and mixtures thereof.

[0183] Fatty alcohols may preferably be selected from the group consisting of isostearyl alcohol, oleyl alcohol, and mixtures thereof.

[0184] 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, and more preferably 10% by mass or more, based on the total mass of the composition.

[0185] The amount of (d) oil in the composition according to the present invention may be 40% by mass or less, preferably 35% by mass or less, and more preferably 30% by mass or less, based on the total mass of the composition.

[0186] The amount of (d) oil in the composition according to the present invention may be in the range of 1% to 40% by mass, preferably 5% to 35% by mass, and more preferably 10% to 30% by mass, based on the total mass of the composition.

[0187] (water) The composition according to the present invention may contain (e) water.

[0188] The amount of water (e) in the composition according to the present invention may be 20% by mass or more, preferably 25% by mass or more, and more preferably 30% by mass or more, based on the total mass of the composition.

[0189] On the other hand, the amount of (e) water in the composition according to the present invention may be 55% by mass or less, preferably 50% by mass or less, and more preferably 45% by mass or less, based on the total mass of the composition.

[0190] The amount of water (e) in the composition of the present invention may be in the range of 20% to 55% by mass, preferably 25% to 50% by mass, and more preferably 30% to 45% by mass, based on the total mass of the composition.

[0191] (AMPS homopolymer) The composition according to the present invention may (f) contain at least one AMPS homopolymer. If two or more AMPS homopolymers are used, they may be the same or different.

[0192] (f) AMPS homopolymer, as used herein, means acrylamide-2-methylpropanesulfonic acid (AMPS) homopolymer.

[0193] (f) The AMPS homopolymer may preferably be completely neutralized or substantially completely neutralized, i.e., at least 90% neutralized.

[0194] (f) The AMPS homopolymer may be crosslinked or not.

[0195] (f) When the AMPS homopolymer is crosslinked, the crosslinking agent used can be selected from among polyolefinic unsaturated compounds commonly used for crosslinking polymers obtained by free radical polymerization.

[0196] Examples of crosslinking agents that can be listed include divinylbenzene, diallyl ether, dipropylene glycol diallyl ether, polyglycol diallyl ether, triethylene glycol divinyl ether, hydroquinone diallyl ether, ethylene glycol or tetraethylene glycol di(meth)acrylate, trimethylolpropane triacrylate, methylenebisacrylamide, methylenebismethacrylamide, triallylamine, triallyl cyanurate, diallyl maleate, tetraallylethylenediamine, tetraallyloxyethane, trimethylolpropane diallyl ether, (meth)acrylate, allyl ethers of sugar-series alcohols, or allyl ethers or vinyl ethers of other polyfunctional alcohols, as well as allyl esters of phosphoric acid derivatives and / or vinylphosphonic acid derivatives, or mixtures thereof.

[0197] According to one embodiment of the present invention, the crosslinking agent is selected from methylenebisacrylamide, allyl methacrylate, and trimethylolpropane triacrylate (TMPTA). The degree of crosslinking is generally in the range of 0.01 mol% to 10 mol%, more specifically 0.2 mol% to 2 mol%, relative to the polymer.

[0198] (f) The AMPS homopolymer according to the present invention may be water-soluble or water-dispersible.

[0199] The term "water-soluble or water-dispersible" refers to a polymer that, when introduced into an aqueous phase at 25°C to a mass concentration equal to 1%, allows for the acquisition of a macroscopically homogeneous and transparent solution, i.e., a solution having a maximum light transmittance value of at least 60%, preferably at least 70%, through a 1 cm thick sample at a wavelength equal to 500 nm.

[0200] (f) The AMPS homopolymer according to the present invention can preferably be prepared by polymerizing AMPS that can be completely neutralized or substantially completely neutralized, i.e., at least 90% neutralized.

[0201] The "homopolymers" according to the present invention are preferably crosslinked and neutralized, and they are obtained through the following steps: (a) A step of dispersing or dissolving a monomer such as AMPS in its free form in a solution of tert-butanol, or in a solution of water and tert-butanol, (b) A step of neutralizing the monomer solution or dispersion obtained in (a) with one or more inorganic or organic bases, preferably ammonia NH3, in an amount that allows the degree of neutralization of the sulfonic acid functional groups of the polymer to be in the range of 90% to 100%, (c) Adding the crosslinked monomer to the solution or dispersion obtained in (b), (d) A step of carrying out standard free radical polymerization in the presence of a free radical initiator at a temperature in the range of 10 to 150°C to precipitate the polymer in a tert-butanol-based solution or dispersion. It can be prepared according to a preparation method that includes [specific details].

[0202] (f) The AMPS homopolymer may have a molar mass in the range of 50,000 g / mol to 10,000,000 g / mol, preferably 80,000 g / mol to 8,000,000 g / mol, and more preferably 100,000 g / mol to 7,000,000 g / mol.

[0203] (f) Examples of AMPS homopolymers that can be listed include crosslinked or non-crosslinked polymers of sodium acrylamide-2-methylpropanesulfonate, such as the polymer in the commercially available product Simulgel 800 (INCI name: sodium polyacryloyldimethyltaurate) or the polymer in Hostacerin AMPS (INCI name: ammonium polyacryloyldimethyltaurate).

[0204] The amount of the (f) AMPS homopolymer in the composition according to the present invention may be 0.01% by mass or more, preferably 0.05% by mass or more, more preferably 0.1% by mass or more, based on the total mass of the composition.

[0205] The amount of the (f) AMPS homopolymer in the composition according to the present invention may be 10% by mass or less, preferably 5% by mass or less, more preferably 1% by mass or less, based on the total mass of the composition.

[0206] The amount of the (f) AMPS homopolymer in the composition according to the present invention may be in the range of 0.01% by mass to 10% by mass, preferably 0.05% by mass to 5% by mass, more preferably 0.1% by mass to 1% by mass, based on the total mass of the composition.

[0207] (Embodiment) According to a preferred embodiment, the composition according to the present invention contains, based on the total mass of the composition, (a) at least one organic UV absorber, (b) at least one associative polymer containing one or more acrylic units and / or methacrylic units, and (c) at least one silica powder and the amount of the (a) organic UV absorber in the composition is 1% by mass to 30% by mass based on the total mass of the composition, the amount of the (b) associative polymer in the composition is 0.01% by mass to 15% by mass based on the total mass of the composition, the amount of the (c) silica powder in the composition is more than 5% by mass and less than 20% by mass based on the total mass of the composition.

[0208] According to a more preferred embodiment, the composition according to the present invention contains, based on the total mass of the composition, (a') at least one lipophilic organic UV absorber, (b') at least one associative polymer containing one or more (meth)acrylic acid units and one or more (meth)acrylic acid (C1 - C 12 ) alkyl ester units, and (c') At least one type of spherical silica powder Includes, The amount of (a) organic UV shielding agent in the composition is 3% to 25% by mass relative to the total mass of the composition. The amount of (b) associative polymer in the composition is 0.05% to 10% by mass relative to the total mass of the composition. The amount of (c) silica powder in the composition is 6% to 15% by mass relative to the total mass of the composition.

[0209] In a more preferred embodiment, the composition according to the present invention is, with respect to the total mass of the composition, (a'') At least one organic UV shielding agent selected from triazine compounds, (b'') at least one associative polymer comprising one or more acrylic units and / or methacrylic units and one or more units derived from polyoxyalkylene fatty alcohols, and (c'') at least one type of spherical hollow silica powder Includes, The amount of (a) organic UV shielding agent in the composition is 5% to 20% by mass relative to the total mass of the composition. The amount of (b) associative polymer in the composition is 0.1% to 5% by mass relative to the total mass of the composition. The amount of (c) silica powder in the composition is 7% to 10% by mass relative to the total mass of the composition.

[0210] (Additional optional components) The compositions according to the present invention may also contain an effective amount of additional optional components that are conventionally known in cosmetic compositions, such as anionic, cationic, or amphoteric surfactants; powders different from component (c); thickeners different from component (b); preservatives; humectants; fragrances; and plant extracts.

[0211] The composition according to the invention may contain one or more cosmetically acceptable organic solvents, such as alcohols, especially monohydric alcohols, such as ethyl alcohol and isopropyl alcohol; diols, such as ethylene 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 ethers, propylene glycol monomethyl, monoethyl, and monobutyl ethers, and butylene glycol monomethyl, monoethyl, and monobutyl ethers.

[0212] The organic solvent may be present in an amount in the range of 0.01% by mass or more, preferably 0.1% by mass or more, more preferably 1% by mass or more, based on the total mass of the composition.

[0213] The organic solvent may be present in an amount in the range of 20% by mass or less, preferably 15% by mass or less, more preferably 10% by mass or less, based on the total mass of the composition.

[0214] The organic solvent may be present in an amount in the range of 0.01% by mass to 20% by mass, preferably 0.1% by mass to 15% by mass, more preferably 1% by mass to 10% by mass, based on the total mass of the composition.

[0215] The composition according to the invention may contain at least one inorganic UV screening agent, such as fine particles of metal oxides such as titanium dioxide and zinc oxide.

[0216] However, the presence of the inorganic UV screening agent in the composition according to the invention may reduce the transparency of the composition. Therefore, the amount of the inorganic UV screening agent in the composition according to the invention may be limited.

[0217] Therefore, the amount of the inorganic UV screening agent in the composition according to the invention may be 2% by mass or less, preferably 1% by mass or less, more preferably 0.1% by mass or less, based on the total mass of the composition. It is particularly preferred that the composition according to the invention does not contain an inorganic UV screening agent.

[0218] (Preparation and properties) The composition according to the present invention can be prepared by mixing the essential components described above with the optional components (if necessary) described above.

[0219] The methods and means for mixing the above-mentioned essential components with optional components are not limited. Any conventional methods and means may be used to mix the above-mentioned essential components with optional components to prepare the compositions according to the present invention. Conventional methods and means may include homogenizers, such as turbine mixers.

[0220] (form) The compositions according to the present invention may be in various forms. For example, the compositions according to the present invention may be in the form of a solution, emulsion, or dispersion.

[0221] If the composition according to the present invention contains (e) water, the composition according to the present invention may be a fluid, such as an aqueous solution. The appearance of the composition according to the present invention may be a gel, since (b) the associative polymer can function as a thickener.

[0222] (a) Since the organic UV shielding agent can function as an oil, the composition according to the present invention may be in the form of an O / W type, such as an O / W emulsion. For example, the appearance of the composition according to the present invention in the form of an O / W emulsion may be a paste or a cream.

[0223] The composition according to the present invention, in the form of an O / W (oil-in-water) type, comprises a dispersed fatty phase, for example, an oily phase dispersed in a continuous aqueous phase. The dispersed fatty phase can be in the form of oil droplets in the aqueous phase. The composition according to the present invention is preferably in the form of an O / W gel emulsion or an O / W gel dispersion.

[0224] An O / W type composition or structure consisting of a fatty phase dispersed in an aqueous phase has an aqueous phase on the outside, and therefore, a composition according to the present invention having an O / W type composition or structure can provide a pleasant feeling of use due to the immediate refreshing sensation that the aqueous phase can provide.

[0225] The composition according to the present invention can form a transparent or translucent film, preferably a transparent film.

[0226] Preferably, the composition according to the present invention can form a film on a black contrast sheet at atmospheric pressure (101325 Pa) and room temperature (25°C) that can reflect light of a color having an L* value of less than 30 (in the L*a*b* system). This means that the film of the composition is transparent or translucent, as it transmits most incident light and does not reflect light substantially. The thickness of the film may be about 50 μm. The L* value can be measured by a colorimeter such as a Minolta CM-36dG.

[0227] [Method and Use] The composition according to the present invention is preferably a cosmetic composition, more preferably a cosmetic composition for keratinous substances such as skin, and even more preferably a skin cosmetic composition.

[0228] The compositions according to the present invention can be used for non-therapeutic methods, such as cosmetic methods for treating keratinous substances such as skin, hair, mucous membranes, nails, eyelashes, eyebrows and / or scalp, by being applied to keratinous substances.

[0229] Therefore, the present invention also relates to a cosmetic method for treating a keratinous substance, preferably skin, which includes the step of applying a composition according to the present invention to the keratinous substance.

[0230] The present invention also relates to the use of the composition according to the invention as a cosmetic, or in a cosmetic, such as a care product and a sunscreen product for the skin of the body and / or face, and / or mucosa, and / or scalp, and / or hair, and / or nails, and / or eyelashes, and / or eyebrows.

[0231] In other words, the composition according to the invention can be used as a cosmetic as it is. Alternatively, the composition according to the invention can be used as an element of a cosmetic. For example, the composition according to the invention can be added to or combined with any other element to form a cosmetic.

[0232] The care product may be a lotion, milk, toner, cream, liquid gel, paste, and serum, etc.

[0233] The present invention also relates to (a) at least one organic UV screening agent in a composition containing (b) at least one associative polymer containing one or more acrylic units and / or methacrylic units and (c) at least one silica powder in combination, where the amount of (c) silica powder in the composition is more than 5% by mass, preferably 6% by mass or more, more preferably 7% by mass or more, based on the total mass of the composition, which may also relate to the use for stabilizing the composition and enabling the composition to have a fresh texture and a non-greasy texture or a texture with reduced greasiness.

[0234] The above description of components (a)-(c) in the composition according to the invention is applicable to the description in the above use according to the invention.

Examples

[0235] The present invention will be described in more detail by reference to examples, but this should not be interpreted as limiting the scope of the invention.

[0236] (Example 1 and Comparative Examples 1-3) The following compositions in the form of aqueous gels, as shown in Example 1 and Comparative Examples 1-3 in Table 1, were prepared by mixing the components shown in Table 1 below. (1) Mix the components in column A of Table 1 at 70°C to form a homogeneous mixture of phase A. (2) Mix the components in column B of Table 1 at room temperature (25°C) to form a homogeneous mixture of phase B. (3) Add the mixture of phase B to the mixture of phase A, and then homogenize them to obtain a mixture of phases A and B. (4) Add the components in column C of Table 1 to the mixture of phases A and B, and then homogenize them to obtain a homogeneous mixture of phases A, B and C. (5) Add the components in column D of Table 1 to the mixture of phases A, B, and C, and then homogenize them to obtain a homogeneous mixture of phases A, B, C, and D. (6) Add the components in column E of Table 1 to the mixture of phases A, B, C, and D, then homogenize them to obtain a homogeneous mixture of phases A, B, C, D, and E, and cool the resulting mixture to room temperature (25°C).

[0237] All numerical values ​​for the amounts of components shown in Table 1 are based on the "mass%" of the active material. The symbols (a), (b), and (c) in Table 1 correspond to those in the specification.

[0238] [Table 1]

[0239] [evaluation] (stability) Each of the compositions from Example 1 and Comparative Examples 1-3 was filled into a glass bottle and kept at 55°C under temperature fluctuation conditions for one week. Then, each sample was examined for the degree of change (appearance, color, and odor) and evaluated according to the following criteria. 3: No phase separation was observed. 2: Some phase separation was observed. 1: Phase separation was observed.

[0240] The results are shown in Table 1.

[0241] (A fresh, dewy texture) Five professional sensory testers evaluated the "fresh texture" (cooling sensation during use) of the compositions from Example 1 and Comparative Examples 1-3 after application. Each sensory tester took a sample of each composition and applied it in a circular motion to their own skin. The sensory testers evaluated the fresh texture after application and scored it on a scale of 1 to 3 according to the following criteria. 3: I felt it had a very fresh texture. 2: I felt it had a slightly moist texture. 1: I didn't get the feeling that it had a fresh, juicy texture.

[0242] The obtained scores were averaged. The results are shown in Table 1. A score of 2.5 or higher is considered practical.

[0243] (Non-greasy texture) Five professional sensory testers evaluated the "non-greasy texture" of the compositions from Example 1 and Comparative Examples 1-3 after application. Each sensory tester took a sample of each composition and applied it in a circular motion to their own skin. The sensory testers evaluated the greasy texture after application and scored it on a scale of 1 to 3 according to the following criteria. 3: I didn't notice any greasy texture. 2: I noticed a slightly greasy texture. 1: I felt it had a greasy texture.

[0244] The obtained scores were averaged. The results are shown in Table 1. A score of 2.5 or higher is considered practical.

[0245] (summary) As is clear from Table 1, the composition according to Example 1 was stable and provided a fresh and non-greasy texture.

[0246] The composition according to Comparative Example 1, which did not contain component (c) (silica powder) in an amount exceeding 5% by mass relative to the total mass of the composition, exhibited a poor texture.

[0247] The composition according to Comparative Example 2, which did not contain component (b) (acrylate / beheneth-25 methacrylate copolymer), was unstable and exhibited an insufficient texture.

[0248] The composition according to Comparative Example 3, which did not contain component (c) (silica powder), exhibited a poor texture.

Claims

1. (a) at least one organic UV shielding agent, (b) at least one associative polymer comprising one or more acrylic units and / or methacrylic units, and (c) at least one type of silica powder A composition comprising, preferably a cosmetic composition, more preferably a skin cosmetic composition, The amount of (c) silica powder in the composition is more than 5% by mass, preferably 6% by mass or more, and more preferably 7% by mass or more, relative to the total mass of the composition. composition.

2. (a) The composition according to claim 1, wherein the organic UV shielding agent is selected from lipophilic organic UV shielding agents.

3. (a) The composition according to claim 1 or 2, wherein the organic UV shielding agent is preferably selected from the group consisting of triazine compounds: ethylhexyl triazone, diethylhexyl butamide triazone, 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, 2,4-bis(n-butyl 4'-aminobenzoate)-6-(aminopropyltrisiloxane)-s-triazine, 3,3'-(1,4-phenylene)bis(5,6-diphenyl-1,2,4-triazine) and bis-ethylhexyloxyphenol methoxyphenyl triazine, more preferably bis-ethylhexyloxyphenol methoxyphenyl triazine.

4. The composition according to any one of claims 1 to 3, wherein the amount of (a) an organic UV shielding agent in the composition is 1% to 30% by mass, preferably 3% to 25% by mass, and more preferably 5% to 20% by mass, based on the total mass of the composition.

5. (b) The associated polymer is one or more (meth)acrylic acid (C 1 ~C 12 A composition according to any one of claims 1 to 4, comprising an alkyl ester unit.

6. (b) The composition according to any one of claims 1 to 5, wherein the associative polymer comprises one or more units derived from a polyoxyalkylene fatty alcohol.

7. The composition according to any one of claims 1 to 6, wherein the amount of (b) associative polymer in the composition is 0.01% to 15% by mass, preferably 0.05% to 10% by mass, and more preferably 0.1% to 5% by mass, based on the total mass of the composition.

8. (c) The composition according to any one of claims 1 to 7, wherein the silica powder is selected from amorphous silica powder.

9. (c) The composition according to any one of claims 1 to 8, wherein the primary particles of the silica powder are in the form of spherical particles, preferably spherical hollow or porous particles, more preferably spherical hollow particles.

10. The composition according to any one of claims 1 to 9, wherein the amount of (c) silica powder in the composition is more than 5% by mass and 20% by mass or less, preferably 6% to 15% by mass, and more preferably 7% to 10% by mass, based on the total mass of the composition.

11. (d) The composition according to any one of claims 1 to 10, further comprising at least one oil.

12. The composition according to claim 11, wherein the amount of (d) oil in the composition is 1% to 40% by mass, preferably 5% to 35% by mass, and more preferably 10% to 30% by mass, based on the total mass of the composition.

13. The composition according to any one of claims 1 to 12, wherein the amount of inorganic UV shielding agent in the composition is 2% by mass or less, preferably 1% by mass or less, and more preferably 0.1% by mass or less, based on the total mass of the composition.

14. The composition according to any one of claims 1 to 12, which can form a transparent or translucent film, preferably a transparent film.

15. A cosmetic method for treating keratinous substances such as skin, comprising the step of applying a composition according to any one of claims 1 to 14 to the keratinous substance.

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