Stable composition containing hydrocarbon oil

Abstract

To provide a composition that contains at least one gemini surfactant and at least one lipophilic thickener, exhibiting high stability at temperatures below 30°C.SOLUTION: A composition contains (a) at least one gemini surfactant, (b) at least one lipophilic thickener, and (c) at least one hydrocarbon oil.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a composition, preferably a cosmetic composition, more preferably a dermocosmetic composition, which is stable. [Background technology]

[0002] WO2019 / 96953 discloses a composition comprising a gemini surfactant having a specific chemical structure having at least two fatty amide groups, and a lipophilic thickener having a specific monomer unit.

[0003] It was discovered that when the compositions disclosed in WO2019 / 96953 were prepared, the compositions became unstable, especially after the compositions were cooled below 30°C. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] WO2019 / 96953 [Patent Document 2] WO2004 / 020394 [Patent Document 3] EP0951897A [Patent Document 4] U.S. Patent Publication No. 5,156,911 [Patent Document 5] WO01 / 19333A [Patent Document 6] U.S. Patent Publication No. 5,736,125 [Patent Document 7] U.S. Patent Publication No. 5,519,063 [Patent Document 8] EP-A-550745 [Patent Document 9] U.S. Patent Application No. 2007 / 0031361 [Patent Document 10] EP571882 [Patent Document 11] EP890583

Patent document 12

Patent document 13

Patent document 14

Patent document 15

Patent document 16

Patent document 17

Patent document 18

Patent document 19

Patent document 20

Patent document 21

Patent document 22

Non-licensed literature

[0005]

Non-licensed literature 1

Non-licensed Document 2

Non-Patent Document 4

Non-Patent Document 5

Non-Patent Document 6

Non-Patent Document 7

Non-Patent Document 8

Non-Patent Document 9

Summary of the Invention

[0006] It is an object of the present invention to provide a composition comprising at least one gemini surfactant and at least one lipophilic thickener, which can be stable below 30°C. [Means for solving the problem]

[0007] The above object of the present invention is to (a) at least one gemini surfactant; (b) at least one lipophilic thickener; and (c) at least one hydrocarbon oil; This can be achieved by a composition, preferably a cosmetic composition, more preferably a skin cosmetic composition, comprising:

[0008] (a) The gemini surfactant has the following formula (III):

[0009] [ka]

[0010] [In the formula, Y' independently represents a carboxylic acid group or an alkali salt of a carboxylic acid group, such as a sodium salt of a carboxylic acid group; j1, k1, j2, and k2 are integers such that (j1, k1, j2, k2)=(2, 0, 2, 0), (2, 0, 0, 2), (0, 2, 2, 0), or (0, 2, 0, 2), l represents an integer of 6 to 16, preferably 8 to 14, and more preferably 10 to 12. The compound can be selected from the compounds represented by:

[0011] (a) The gemini surfactant may be selected from the group consisting of sodium dilauramidoglutamido lysine, sodium dimyristoyl glutamido lysine, and sodium distearoyl glutamido lysine, and mixtures thereof.

[0012] The amount of (a) gemini surfactant in the composition according to the present invention may be within the range of 0.01% by mass to 10% by mass, preferably 0.05% by mass to 5% by mass, and more preferably 0.1% by mass to 1% by mass, relative to the total mass of the composition.

[0013] (b) The lipophilic thickener is a lipophilic organic thickener, preferably a lipophilic organic polymer, more preferably a lipophilic organic semi-crystalline polymer, even more preferably a mixture of (meth)acrylic acid and C 10 ~C 30 The polymer may be selected from at least one ester polymer with an aliphatic alcohol.

[0014] The amount of (b) lipophilic thickener in the composition of the present invention may be within the range of 0.01% to 10% by mass, preferably 0.05% to 5% by mass, and more preferably 0.1% to 2% by mass, relative to the total mass of the composition.

[0015] (c) Hydrocarbon oils include volatile and non-volatile aliphatic saturated hydrocarbons, preferably volatile and non-volatile C8-C 22 Alkanes, preferably volatile C8-C 22 It may be selected from alkanes.

[0016] The amount of (c) hydrocarbon oil in the composition of the present invention may be within the range of 1 mass % to 20 mass %, preferably 2 mass % to 15 mass %, and more preferably 3 mass % to 10 mass %, relative to the total mass of the composition.

[0017] The mass ratio of the amount of (c) hydrocarbon oil / the amount of (b) lipophilic polymer may be 7-13, preferably 8-12, and more preferably 9-11.

[0018] The composition of the present invention may further comprise (d) at least one UV filter, which is preferably selected from organic UV filters, more preferably selected from the group consisting of butyl methoxydibenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, ethylhexyl triazone, drometrizole trisiloxane, ethylhexyl salicylate, octocrylene, homosalate, and mixtures thereof.

[0019] The amount of the (d) UV filter in the composition of the present invention may be within the range of 1% by mass to 40% by mass, preferably 5% by mass to 35% by mass, and more preferably 10% by mass to 30% by mass, relative to the total mass of the composition.

[0020] The composition of the present invention may further comprise (e) water.

[0021] The amount of (e) water in the composition of the present invention may be within the range of 20% by mass to 70% by mass, preferably 30% by mass to 65% by mass, and more preferably 40% by mass to 60% by mass, relative to the total mass of the composition.

[0022] The composition of the present invention may be in the form of an O / W emulsion.

[0023] The present invention also relates to a cosmetic method for treating keratinous materials, such as the skin, which comprises the step of applying a composition of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] After extensive investigation, the inventors have discovered that it is possible to provide a composition comprising at least one gemini surfactant and at least one lipophilic thickener, which can be stable below 30°C.

[0025] One aspect of the present invention is (a) at least one gemini surfactant; (b) at least one lipophilic thickener; and (c) at least one hydrocarbon oil; The composition comprises:

[0026] The compositions of the present invention are stable below 30° C., and therefore, the compositions may be stable at room temperature.

[0027] The compositions of the present invention are stable. The term "stable" as used herein means that the aspect or appearance of the composition does not change, for example as a result of visually observable foreign matter or phase separation. It is preferred that the compositions of the present invention are stable over long periods of time.

[0028] When the composition of the present invention contains (e) water and is in the form of an O / W emulsion containing a continuous aqueous phase and a dispersed fatty phase, the particles of the fatty phase can be small so that they do not easily aggregate and cause phase separation, so that the composition of the present invention in the form of an O / W emulsion can maintain a uniform aspect or appearance and is therefore stable.

[0029] When the composition of the present invention comprises (d) at least one UV filter, the composition is UV-shielding or capable of shielding UV rays.In addition, the composition of the present invention can form a homogeneous or uniform film containing (d) UV filter, which can provide homogeneous or uniform distribution of (d) UV filter, and can provide good UV protection.

[0030] Hereafter, the invention will be explained in more detail.

[0031] [Composition] (Gemini surfactants) The composition of the present invention includes (e) at least one gemini surfactant. A single type of gemini surfactant may be used, or two or more different types of gemini surfactants may be used in combination.

[0032] Gemini or dimeric surfactants are well known. For a detailed description of the various chemical structures and their physicochemical properties, reference may be made to the following publications: Milton J. Rosen, Gemini Surfactants, Properties of surfactant molecules with two hydrophilic groups and two hydrophobic groups, Cosmetics & Toiletries magazine, Volume 113, December 1998, pp. 49-55, and Milton J. Rosen, Recent Developments in Gemini Surfactants, Allured's Cosmetics & Toiletries magazine, July 2001, Volume 116, Number 7, pp. 67-70.

[0033] (a) Gemini surfactants are anionic and contain multiple hydrophobic and multiple hydrophilic moieties.

[0034] (a) The gemini surfactant may contain at least two fatty amide groups.

[0035] (a) Gemini surfactants are represented by the following formula (I):

[0036] [ka]

[0037] [In the formula, a) R1 is an alkyl group having 1 to 25 carbon atoms, or a group of the formula: -(CH2) k1 -CH[-NH-CO-(CH2) l -CH3]-(CH2) j1 -Y' represents a group having the formula b) R3 is an alkyl group having 1 to 25 carbon atoms, or a group of the formula: -(CH2) k2-CH[-NH-CO-(CH2) l -CH3]-(CH2) j2 -Y' represents a group having the formula c) R2 is a linear or branched alkylene chain containing 1 to 12 carbon atoms, or a group of the formula -CH(Y')-(CH2) n' - {In the formula, n' represents an integer between 1 and 8, preferably between 3 and 5 and even more preferentially equal to 4, Y' each independently represent a carboxylic acid group or an alkali salt of a carboxylic acid group, for example a sodium salt of a carboxylic acid group; j1, k1, j2 and k2 represent integers such that (j1, k1, j2, k2)=(2, 0, 2, 0), (2, 0, 0, 2), (0, 2, 2, 0) or (0, 2, 0, 2); l represents an integer of 6 to 16, preferably 8 to 14, and more preferably 10 to 12. represents a spacer consisting of the group d) X and Y are each independently -(C2H4O) a -(C3H6O) b Z group {In the formula, - Z represents a hydrogen atom or a -CH2-COOM, -SO3M, -P(O)(OM)2, -C2H4-SO3M, -C3H6-SO3M or -CH2(CHOH)4CH2OH group, in which M and M' represent H or an alkali metal or alkaline earth metal, or an ammonium or alkanolammonium ion, - a is in the range of 0 to 15; - b is in the range of 0 to 10, - the sum of a+b is in the range of 1 to 25} indicates, e) n is in the range of 1 to 10. and also its stereoisomers.

[0038] According to a first embodiment of the present invention, the (a) gemini surfactant has the following formula (II):

[0039] [ka]

[0040] [In the formula, a) R1 and R3 each independently represent an alkyl group containing 1 to 25 carbon atoms; b) R2 represents a spacer group consisting of a linear or branched alkylene chain containing 1 to 12 carbon atoms; c) X and Y are each independently -(C2H4O) a -(C3H6O) b Z group {In the formula, - Z represents a hydrogen atom or a -CH2-COOM, -SO3M, -P(O)(OM)2, -C2H4-SO3M, -C3H6-SO3M or -CH2(CHOH)4CH2OH group, in which M and M' represent H or an alkali metal or alkaline earth metal, ammonium or alkanolammonium ion, - a is in the range of 0 to 15; - b is in the range of 0 to 10, - the sum of a+b is in the range of 1 to 25, - n is in the range of 1 to 10} Show and also stereoisomers thereof.

[0041] According to a preferred embodiment, the gemini surfactant of formula (II) is such that the R1-CO- and R3-CO- groups each contain from 8 to 20 carbon atoms and preferably represent a coconut fatty acid residue (mainly including lauric and myristic acids).

[0042] According to another embodiment, the gemini surfactant of formula (II) is such that the sum of a and b, for each of the X and Y groups, has an average value ranging from 10 to 20, and is preferably equal to 15. A preferred group for Z is the -SO3M group, where M is preferably an alkali metal ion, such as the sodium ion.

[0043] In formula (II) defined above, the spacer R2 advantageously consists of a linear C1-C3 alkylene chain, preferably a (CH2CH2)ethylene chain.

[0044] Finally, n is advantageously equal to 1.

[0045] This type of surfactant, in particular, has the structure:

[0046] [ka]

[0047] (It is understood that PEG represents a CH2CH2O group and cocoyl represents a coconut fatty acid residue.) It is identified by the INCI name Dicocoyl Ethylenediamine PEG-15 Sodium Sulfate, which has the formula:

[0048] This surfactant has a molecular structure very similar to ceramide-3.

[0049] Preferably, the gemini surfactant of formula (II) is used in a mixture with other surfactants, in particular (a) C6-C 22 Fatty acids (preferably C 14 ~C 20 (b) glyceryl esters of C6-C 22 Fatty acids (preferably C 14 ~C 20 stearic acid) and diesters of citric acid and glycerol (especially C6-C 22 (c) diesters of fatty acids and glyceryl monocitrate; 10 ~C30 It is used in a mixture with a fatty alcohol, preferably behenyl alcohol.

[0050] More preferentially, the gemini surfactant of formula (II) may represent from 10 to 20% by weight, advantageously from 15% by weight, based on the total weight of the mixture of surfactants containing the gemini surfactant, and may be C6 to C 22 The glyceryl esters of fatty acids make up 30-40% by weight, advantageously 35% by weight, and are C6-C 22 The diester of fatty acid, citric acid and glycerol accounts for 10 to 20% by weight, advantageously 15% by weight, C 10 ~C 30 The fatty alcohols make up 30-40% by weight, advantageously 35% by weight.

[0051] As a variant, the gemini surfactants of formula (II) can be used in a mixture with an anionic surfactant, for example an ester of lauric acid, sodium lauryl lactylate, in which case the gemini surfactant preferably represents 30 to 50% by weight and the anionic surfactant represents 50 to 70% by weight, relative to the total weight of the mixture.

[0052] The Gemini surfactants can be used in mixtures with other surfactants, for example in the form of products sold under the name Ceralution® by the company Sasol, in particular the following products: - Ceralution® H: Behenyl alcohol, glyceryl stearate, glyceryl stearate citrate and sodium dicocoyl ethylenediamine PEG-15 sulfate, - Ceralution® F: sodium lauroyl lactylate and sodium dicocoyl ethylenediamine PEG-15 sulfate, and - Ceralution® C: Aqua, Capric / Caprylic Triglyceride, Glycerin, Ceteareth-25, Sodium Dicocoyl Ethylenediamine PEG-15 Sulfate, Sodium Lauroyl Lactylate, Behenyl Alcohol, Glyceryl Stearate, Glyceryl Stearate Citrate, Gum Acacia, Xanthan Gum, Phenoxyethanol, Methylparaben, Ethylparaben, Butylparaben, Isobutylparaben (INCI Name).

[0053] According to a preferred embodiment of the present invention, the gemini surfactant of formula (II) is in the form of a mixture of surfactants, which comprises from 3% to 50% by weight, preferably from 10% to 50% by weight and even more preferentially from 10% to 20% by weight of gemini surfactant of formula (II) relative to the total weight of the mixture.

[0054] According to a second embodiment of the present invention, the (a) gemini surfactant has the following formula (III):

[0055] [ka]

[0056] [In the formula, Y' each independently represent a carboxylic acid group or an alkali salt of a carboxylic acid group, for example a sodium salt of a carboxylic acid group; j1, k1, j2, and k2 represent integers such that (j1, k1, j2, k2)=(2, 0, 2, 0), (2, 0, 0, 2), (0, 2, 2, 0), or (0, 2, 0, 2); l represents an integer of 6 to 16, preferably 8 to 14, and more preferably 10 to 12. and stereoisomers thereof.

[0057] According to one particular embodiment of the invention, in formula (III), l represents an integer ranging from 8 to 12, j1=j2=0, and k1=k2=2.

[0058] Preferably, in formula (III), Y' represents -COONa, j1=j2=0, k1=k2=2, and l=10.

[0059] Examples of gemini surfactants of formula (III) include sodium dilauramidoglutamidolysine, sodium dimyristoylglutamidolysine and sodium distearoylglutamidolysine.Sodium dilauramidoglutamidolysine is particularly preferred.Sodium dilauramidoglutamidolysine is sold in particular under the names Pellicer L-30 and Pellicer LB-10 by Asahi Kasei Chemicals.

[0060] The above amide compound represented by formula (III) can be prepared, for example, by reacting a long-chain N-acyl acidic amino acid anhydride with a basic amino acid, such as lysine, in water and / or a mixed solvent of water and an organic solvent, or in an inert organic solvent, such as tetrahydrofuran, benzene, toluene, xylene, tetrachloromethane, chloroform, acetone, etc., or without any solvent at -5°C to 200°C, preferably 5°C to 100°C, more preferably 0°C to 60°C.

[0061] Gemini surfactants of formula (III) are disclosed in detail in patent application WO2004 / 020394.

[0062] The amount of (a) gemini surfactant in the composition of the present invention may be 0.01 mass % or more, preferably 0.05 mass % or more, and more preferably 0.1 mass % or more, based on the total mass of the composition.

[0063] On the other hand, the amount of (a) gemini surfactant in the composition of the present invention may be 10% by mass or less, preferably 5% by mass or less, and more preferably 1% by mass or less, based on the total mass of the composition.

[0064] The amount of the (a) gemini surfactant in the composition of the present invention may be within the range of 0.01% by mass to 10% by mass, preferably 0.05% by mass to 5% by mass, and more preferably 0.1% by mass to 1% by mass, relative to the total mass of the composition.

[0065] (Lipophilic thickener) The composition of the present invention comprises (b) at least one lipophilic thickener. A single type of lipophilic thickener may be used, but two or more different types of lipophilic thickeners may also be used in combination.

[0066] The (b) lipophilic thickener is capable of thickening a fatty phase comprising at least the (c) hydrocarbon oil, in other words, the (b) lipophilic thickener is capable of increasing the viscosity of the fatty phase.

[0067] The term "lipophilic" is used herein to refer to the degree of hydrophilicity at room temperature (25°C) and atmospheric pressure (10 5 By "lipophilic thickener" is meant a substance which is soluble in oil at a concentration of at least 1% by weight relative to the total weight of the oil (at 1 Pa). Thus, (b) lipophilic thickeners can be present in the fatty phase.

[0068] (b) Lipophilic thickeners may be inorganic or organic.

[0069] The lipophilic organic thickener may preferably be selected from lipophilic organic polymers.

[0070] (b) The lipophilic thickener is preferably selected from semi-crystalline or crystalline polymers.

[0071] The semi-crystalline or crystalline polymer is preferably a semi-crystalline polymer. The term "semi-crystalline polymer" refers to a polymer that contains crystalline parts, crystalline pendant chains and / or terminal chains or crystalline blocks in the main chain and / or at the end, and contains amorphous parts in the main chain, and has a first-order reversible temperature of phase change, specifically melting change (solid-liquid transition). When the crystalline parts are in the form of crystalline blocks of the polymer main chain, the amorphous parts of the polymer are in the form of amorphous blocks, in which case the semi-crystalline polymer is, for example, a block copolymer of diblock, triblock or multiblock type, containing at least one crystalline block and at least one amorphous block. The term "block" generally refers to at least 5 identical repeating units. Thus, the crystalline blocks are of a different chemical nature than the amorphous blocks.

[0072] The semi-crystalline polymer may have a melting point of 30° C. or higher (especially in the range of 30 to 80° C.), preferably in the range of 30 to 60° C., particularly in the range of 40 to 50° C. This melting point is the first temperature of change of state.

[0073] This melting point may be measured by any known method, in particular using a differential scanning calorimeter (DSC), for example the calorimeter sold under the name DSC Q2000 by the company TA Instruments.

[0074] Advantageously, the semi-crystalline polymer may have a number average molecular weight of 1,000 or greater.

[0075] Advantageously, the semicrystalline polymer may have a number average molecular weight Mn in the range of 2,000 to 800,000, preferably 3,000 to 500,000, better still 4,000 to 150,000, in particular less than 100,000, better still 4,000 to 99,000. Preferably, the semicrystalline polymer has a number average molecular weight of more than 5,600, for example in the range of 5,700 to 99,000.

[0076] For the purposes of the present invention, the expression "crystalline chain or block" means a chain or block that, if taken alone, must change reversibly from an amorphous state to a crystalline state depending on whether the temperature is above or below the melting point. For the purposes of the present invention, a "chain" is a group of atoms that is pendant or lateral to the polymer backbone. A "block" is a group of atoms that belongs to the backbone and that constitutes one of the repeating units of the polymer. Advantageously, a "pendant crystalline chain" may be a chain containing at least 6 carbon atoms.

[0077] Preferably, the crystalline blocks or chains of the semicrystalline polymers represent at least 30% of the total mass of each polymer, and even better at least 40%. The semicrystalline polymers containing crystalline blocks may be block or multiblock polymers. They may be obtained via polymerization of monomers containing reactive double bonds (or ethylene bonds) or via polycondensation. When they are polymers containing crystalline side chains, these side chains are advantageously in random or statistical form.

[0078] Preferably, the semi-crystalline polymers that can be used in the compositions of the present invention are of synthetic origin. Moreover, they do not contain a polysaccharide backbone. In general, the crystalline units (chains or blocks) of the semi-crystalline polymer can originate from the monomers that contain the crystalline blocks or chains used to prepare the semi-crystalline polymer.

[0079] According to the invention, the semi-crystalline polymer can be chosen from block copolymers comprising at least one crystalline block and at least one amorphous block, as well as homopolymers and copolymers carrying at least one crystalline side chain per repeat unit, and mixtures thereof.

[0080] Semicrystalline polymers which may be used in the present invention are in particular: - block copolymers of polyolefins with controlled crystallization, in particular those whose monomers are described in EP 0 951 897 A; - polycondensates, in particular of the aliphatic or aromatic polyester type or of the aliphatic / aromatic copolyester type; - homopolymers or copolymers carrying at least one crystallizable side chain and at least one crystallizable block in the main chain, for example those described in US Pat. No. 5,156,911; - homopolymers or copolymers carrying at least one crystallizable side chain, in particular containing fluoro groups, as described in document WO 01 / 19333 A, - A mixture of these.

[0081] In the last two cases, the crystallizable side chains or blocks are hydrophobic.

[0082] (i) Semicrystalline polymers containing crystallizable side chains Mention may in particular be made of those defined in US Pat. No. 5,156,911 and WO 01 / 19333 A. They are homopolymers or copolymers comprising 50% to 100% by weight of units resulting from the polymerization of one or more monomers carrying hydrophobic crystallizable side chains.

[0083] These homopolymers or copolymers may be of any nature, provided that they fulfil the conditions set out above.

[0084] these are, from the polymerization, in particular free radical polymerization, of one or more monomers containing a reactive or ethylenic double bond with respect to polymerization, i.e. vinyl, (meth)acrylic or allylic groups, or from the condensation polymerization of one or more monomers carrying mutually reactive groups (carboxylic acids, sulfonic acids, alcohols, amines or isocyanates), such as polyesters, polyurethanes, polyethers, polyureas or polyamides; can be obtained.

[0085] In general, these polymers are in particular of the formula:

[0086] [ka]

[0087] (In the formula, M represents an atom of the polymer main chain, S represents a spacer, and C represents a crystallizable group.) The polymer is selected from homopolymers and copolymers resulting from the polymerization of at least one monomer containing a crystallizable chain that can be represented by:

[0088] The crystallizable chain "-SC" may be aliphatic or aromatic, optionally fluorinated or perfluorinated. "S" may in particular be linear or branched or cyclic (CH2). n or (CH2CH2O) n or a (CH2O) group (wherein n is an integer in the range of 0 to 22). Preferably, "S" is a linear group. Preferably, "S" and "C" are different.

[0089] When the crystallizable chains "-SC" are hydrocarbon-based aliphatic chains, they include hydrocarbon-based alkyl chains containing at least 11 carbon atoms, not more than 40 carbon atoms, and even better not more than 24 carbon atoms. They are in particular aliphatic or alkyl chains containing at least 12 carbon atoms, and they are preferably C 14 ~C 24 When the chains are fluoroalkyl or perfluoroalkyl chains, they contain at least 6 fluorinated carbon atoms, in particular at least 11 carbon atoms, of which at least 6 are fluorinated.

[0090] Examples of semi-crystalline polymers or copolymers that retain crystalline chains include those resulting from the polymerization of one or more of the following monomers: 14 ~C 24 a saturated alkyl (meth)acrylate having an alkyl group represented by the formula: 11 ~C 15Perfluoroalkyl (meth)acrylates having perfluoroalkyl groups, C with or without fluorine atoms 14 ~C 24 N-alkyl(meth)acrylamide having an alkyl group represented by C 14 ~C 24 vinyl esters containing alkyl or perfluoro(alkyl) chains (having at least 6 fluorine atoms per perfluoroalkyl chain) with an alkyl group of 14 ~C 24 and vinyl ethers containing alkyl or perfluoro(alkyl) chains having an alkyl group represented by the formula: 14 ~C 24 Alpha-olefins such as octadecene, para-alkylstyrenes having alkyl groups containing from 12 to 24 carbon atoms, and mixtures thereof.

[0091] When the polymer results from a condensation polymerization, the hydrocarbon-based and / or fluorinated crystallizable chains defined above are carried by monomers which may be diacids, diols, diamines or diisocyanates.

[0092] When the polymers that are the subject of the invention are copolymers, these polymers further contain from 0 to 50% of Y or Z groups resulting from the copolymerization of: α) Copolymerization of Y, which is a polar or non-polar monomer or a mixture of the two: When Y is a polar monomer, Y is either a monomer carrying a polyoxyalkylenated group (in particular an oxyethylenated group and / or an oxypropylenated group), a hydroxyalkyl(meth)acrylate, such as hydroxyethyl acrylate, (meth)acrylamide, N-alkyl(meth)acrylamide, N,N-dialkyl(meth)acrylamide, such as N,N-diisopropylacrylamide or N-vinylpyrrolidone (NVP), N-vinylcaprolactam, or a monomer carrying at least one carboxylic acid group, such as (meth)acrylic acid, crotonic acid, itaconic acid, maleic acid or fumaric acid, or a monomer carrying a carboxylic acid anhydride group, such as maleic anhydride, and mixtures thereof.

[0093] When Y is a non-polar monomer, Y is selected from linear, branched or cyclic (meth)acrylic acid alkyl type esters, vinyl esters, alkyl vinyl ethers, α-olefins, styrene, or C1-C 10 It may be a styrene substituted with an alkyl group, for example α-methylstyrene.

[0094] For the purposes of the present invention, the term "alkyl" refers specifically to C8 to C9 alkyl groups, unless otherwise specified. 24 or even better, C 14 ~C 24 means a saturated group of the formula:

[0095] β) Copolymerization of Z, which is a polar monomer or mixture of polar monomers. In this case, Z has the same definition as "polar Y" defined above.

[0096] Preferably, the semi-crystalline polymer containing crystallizable side chains is an alkyl group as defined above, in particular C 14 ~C 24Alkyl (meth)acrylate or alkyl (meth)acrylamide homopolymers having alkyl groups, copolymers of these monomers, preferably with hydrophilic monomers of a different nature than (meth)acrylic acid, such as, for example, N-vinylpyrrolidone or hydroxyethyl (meth)acrylate, and mixtures thereof.

[0097] (ii) a polymer that retains at least one crystalline block in the main chain These polymers are in particular block copolymers consisting of at least two blocks of different chemical nature, one of which is crystalline: - block polymers as defined in U.S. Patent Publication No. 5,156,911, and - olefinic or cycloolefinic block copolymers containing crystallizable chains, e.g. derived from the block polymerization of cyclobutene, cyclohexene, cyclooctene, norbornene (i.e., bicyclo(2,2,1)-2-heptene), 5-methylnorbornene, 5-ethylnorbornene, 5,6-dimethylnorbornene, 5,5,6-trimethylnorbornene, 5-ethylidenenorbornene, 5-phenylnorbornene, 5-benzylnorbornene, 5-vinylnorbornene, 1,4,5,8-dimethano-1,2,3,4,4a,5,8a-tetrahydronaphthalene, dicyclopentadiene, or mixtures thereof; derived from the block polymerization of ethylene, propylene, 1-butene, 3-methyl-1-butene, 1-hexene, 4-methyl-1-pentene, 1-octene, 1-decene, or 1-eicosene, or mixtures thereof; In particular, copoly(ethylene / norbornene) block and (ethylene / propylene / ethylidene-norbornene) block terpolymers. 16 , and even better C2~C 12 , and even better still, C4~C 12 Those resulting from the block copolymerization of α-olefins can also be used, in particular block bipolymers of ethylene and of 1-octene.

[0098] The copolymers may be copolymers that contain at least one crystalline block, the copolymer residue of which is amorphous (at room temperature). These copolymers may also contain two crystalline blocks of different chemical nature. Preferred copolymers are those that simultaneously contain a crystalline block and an amorphous block at room temperature, both of which are hydrophobic and lipophilic, and are distributed successively, and mention may be made, for example, of polymers that contain one of the following crystalline blocks and one of the following amorphous blocks: blocks which are naturally crystalline: a) those of polyester type, for example those of poly(alkylene terephthalate), b) those of polyolefin type, for example those of polyethylene or polypropylene, and - Amorphous lipophilic blocks, such as amorphous polyolefins or copoly(olefins), for example poly(isobutylene), hydrogenated polybutadiene or hydrogenated poly(isoprene).

[0099] Examples of such copolymers containing a crystalline block and a separate amorphous block include: α) poly(ε-caprolactone)-b-poly(butadiene) block copolymers, preferably used hydrogenated, such as those described in the article by S. Nojima, "Melting behavior of poly(ε-caprolactone)-block-polybutadiene copolymers", Macromolecules, Vol. 32, pp. 3727-3734 (1999); β) hydrogenated block or multiblock poly(butylene terephthalate)-b-poly(isoprene) block copolymers, as cited in the article by B. Boutevin et al., "Study of morphological and mechanical properties of PP / PBT," Polymer Bulletin, Vol. 34, pp. 117-123 (1995); γ) Poly(ethylene)-b-copoly(ethylene / propylene) block copolymers, as cited in the article by P. Rangarajan et al., “Morphology of semicrystalline block copolymers of ethylene-(ethylene-alt-propylene)”, Macromolecules, Vol. 26, pp. 4640-4645 (1993), and the article by P. Richter et al., “Polymer aggregates with crystalline cores: the system poly(ethylene)poly(ethylene-propylene)”, Macromolecules, Vol. 30, pp. 1053-1068 (1997); δ) Poly(ethylene)-b-poly(ethylethylene) block copolymers, as listed in the general article by IW Hamley, "Crystallization in block copolymers," Advances in Polymer Science, Vol. 148, pp. 113-137 (1999).

[0100] The semicrystalline polymers that can be used for the present invention can be partially crosslinked or uncrosslinked, provided that the degree of crosslinking does not prevent the polymer from dissolving or dispersing in the liquid fatty phase that is optionally present in the composition by heating the composition to a temperature above the melting point of the polymer. Crosslinking can therefore be chemical crosslinking, which occurs by reacting with polyfunctional monomers during polymerization. Crosslinking can also be physical crosslinking, which can be either due to the establishment of hydrogen bonds or dipole-type bonds between groups held by the polymer, for example dipole interactions between carboxylate ionomers (these interactions are small and are held by the polymer backbone), or due to phase separation between crystalline and amorphous blocks held by the polymer.

[0101] Preferably, the semi-crystalline polymers that may be used for the present invention are not crosslinked.

[0102] According to one particular embodiment of the invention, the polymer is 14 ~C 24 Alkyl (meth)acrylate, C 11 ~C 15 Perfluoroalkyl (meth)acrylates, with or without fluorine atoms, C 14 ~C 24 N-Alkyl(meth)acrylamide, C 14 ~C 24 Vinyl esters containing alkyl or perfluoroalkyl chains, C 14 ~C 24 Vinyl ethers containing alkyl or perfluoroalkyl chains, C 14 ~C 24 At least one monomer containing a crystallizable chain selected from alpha-olefins, para-alkylstyrenes having an alkyl group containing 12 to 24 carbon atoms, optionally fluorinated C1-C 10 and copolymers obtained by polymerization with monocarboxylic acid esters or amides, which have the following formula:

[0103] [ka]

[0104] [Wherein, R1 is H or CH3, and R is an optionally fluorinated C1-C 10 represents an alkyl group, X is O, NH or NR2, where R2 is an optionally fluorinated C1-C 10 represents an alkyl group] It can be expressed as:

[0105] According to one or more particular embodiments of the present invention, the polymer is a saturated C 14 ~C 22 It is derived from a monomer containing a crystallizable chain selected from alkyl (meth)acrylates, and more particularly poly(stearyl acrylate) or poly(behenyl acrylate).

[0106] (b) the lipophilic thickener has the formula: H2C=C(R1)COOR2 [In the formula, R1 represents a hydrogen atom or a methyl group; R2 is a linear or branched C1-C alkyl group optionally substituted with at least one halogen atom. 30 represents an alkyl group, X is -O- or NR3- (wherein R3 is a hydrogen atom or a linear or branched C1-C 10 represents an alkyl group, which may be substituted with at least one halogen atom); It is preferred that the polymer is a polymer of monomers comprising at least one monomer represented by

[0107] C 10 ~C 30 The alkyl groups may be stearyl and behenyl groups.

[0108] (b) The lipophilic thickener is a mixture of (meth)acrylic acid and C 10 ~C 30 More preferably, it is a polymer of at least one ester with an aliphatic alcohol.

[0109] As a specific example of a structured semicrystalline polymer that can be used in the composition of the invention, mention may be made of the polymer having the INCI name "Poly C 10 ~C 30 Polymers with "alkyl acrylates", such as the Intelimer® products from the company Evonik, such as the product TEGO® SP 13-1, which is a polystearyl acrylate and has a melting point of 48° C., or the product TEGO® SP 13-6, which is a behenyl polymer.

[0110] The semi-crystalline polymer may in particular be: Acrylic Acid and C5-C 16Those described in US Pat. No. 5,156,911, Examples 3, 4, 5, 7, 9 and 13, containing -COOH groups, resulting from copolymerization with alkyl (meth)acrylates, more particularly Copolymerization of acrylic acid with hexadecyl acrylate and isodecyl acrylate in a mass ratio of 1 / 16 / 3, Copolymerization of acrylic acid with pentadecyl acrylate in a mass ratio of 1 / 19, Copolymerization of acrylic acid, hexadecyl acrylate and ethyl acrylate in a mass ratio of 2.5 / 76.5 / 20, Copolymerization of acrylic acid, hexadecyl acrylate and methyl acrylate in a mass ratio of 5 / 85 / 10, Copolymerization of acrylic acid and octadecyl methacrylate in a mass ratio of 2.5 / 97.5, Copolymerization of hexadecyl acrylate, monomethyl ether of polyethylene glycol methacrylate containing 8 ethylene glycol units, and acrylic acid in a mass ratio of 8.5 / 1 / 0.5.

[0111] It is also possible to use the structure "O" from National Starch, having a melting point of 44°C, as described in US Patent Publication No. 5,736,125, and also to use semi-crystalline polymers having crystallizable pendant chains containing fluoro groups, as described in Examples 1, 4, 6, 7 and 8 of document WO01 / 19333A.

[0112] It is also possible to use semicrystalline polymers obtained by copolymerization of stearyl acrylate with acrylic acid or NVP, which have melting points of 40° C. and 38° C., respectively, as described in US Pat. No. 5,519,063 or EP-A-550745.

[0113] It is also possible to use semicrystalline polymers obtained by copolymerization of behenyl acrylate with acrylic acid or NVP, which have melting points of 60° C. and 58° C., respectively, as described in US Pat. No. 5,519,063 and EP-A-550,745.

[0114] Preferably, the semi-crystalline polymer does not contain any carboxylic acid groups.

[0115] Finally, the semicrystalline polymer of the invention can also be chosen from waxy polymers obtained via metallocene catalysis, such as those described in US Patent Application No. 2007 / 0031361.

[0116] These polymers are homopolymers or copolymers of ethylene and / or propylene prepared via metallocene catalysis, ie, by polymerization in the presence of a metallocene catalyst at low pressure.

[0117] The weight average molecular weight (Mw) of the waxes obtained via metallocene catalysis described in the above document is less than or equal to 25,000 g / mol, for example in the range of 2,000 to 22,000 g / mol, and even better still 4,000 to 20,000 g / mol.

[0118] The number average molecular weight (Mn) of the waxes obtained via metallocene catalysis described in the above document is preferably less than or equal to 15,000 g / mol, for example in the range from 1,000 to 12,000 g / mol, and even better still from 2,000 to 10,000 g / mol.

[0119] The polydispersity index I of a polymer is equal to the ratio of the weight average molecular weight Mw to the number average molecular weight Mn. Preferably, the polydispersity index of the waxy polymer is between 1.5 and 10, more preferably between 1.5 and 5, even more preferably between 1.5 and 3, and better still between 2 and 2.5.

[0120] The waxy homo- and copolymers can be obtained in known manner from ethylene and / or propylene monomers, for example via metallocene catalysis according to the method described in patent document EP571882.

[0121] The homopolymers and copolymers of ethylene and / or propylene prepared via metallocene catalysis may be unmodified or "polar" modified (polar modified waxes, i.e. waxes modified to have polar wax properties). Polar modified waxy homopolymers and copolymers can be prepared in known manner from unmodified waxy homopolymers and copolymers such as those mentioned above, by oxidation with oxygen-containing gases such as air, or by grafting with polar monomers such as maleic acid or alkyl acids or derivatives of these acids. These two routes allowing the polar modification of polyolefins obtained via metallocene catalysis are described, for example, in the patent documents EP 890583 and US Pat. No. 5,998,547, respectively, the contents of which are incorporated herein by reference.

[0122] According to the present invention, particularly preferred polar modified homo- and copolymers of ethylene and / or propylene prepared via metallocene catalysis are polymers modified to have hydrophilic properties. Examples that may be mentioned include homo- or copolymers of ethylene and / or propylene modified by the presence of hydrophilic groups such as maleic anhydride, acrylates, methacrylates, polyvinylpyrrolidone (PVP), etc.

[0123] Waxy ethylene and / or propylene homopolymers or copolymers modified by the presence of hydrophilic groups such as maleic anhydride or acrylates are particularly preferred.

[0124] Examples that may be mentioned include: - polypropylene waxes modified with maleic anhydride (PPMA) sold by Clariant or polypropylene-ethylene-maleic anhydride copolymers such as those sold under the name LicoCare by Clariant, for example LicoCare PP207 LP3349, LicoCare CM401 LP3345, LicoCare CA301 LP3346 and LicoCare CA302 LP3347, or - unmodified polyethylene waxes sold by Clariant, such as the product LicoCare PE 102 LP3329.

[0125] (b) the lipophilic thickener is a lipophilic organic thickener, more preferably a lipophilic organic polymer, more preferably a lipophilic organic semi-crystalline polymer, even more preferably a mixture of (meth)acrylic acid and C 10 ~C 30 It is preferred to select from at least one ester polymer with an aliphatic alcohol.

[0126] The amount of (b) lipophilic thickener in the composition of the present invention may be 0.01% by weight or more, preferably 0.05% by weight or more, more preferably 0.1% by weight or more, based on the total weight of the composition.

[0127] On the other hand, the amount of (b) lipophilic thickener in the composition of the present invention may be 10% by mass or less, preferably 5% by mass or less, more preferably 2% by mass or less, based on the total mass of the composition.

[0128] The amount of (b) lipophilic thickener in the composition of the present invention may be within the range of 0.01% to 10% by mass, preferably 0.05% to 5% by mass, and more preferably 0.1% to 2% by mass, relative to the total mass of the composition.

[0129] (Hydrocarbon oil) The composition of the present invention comprises (c) at least one hydrocarbon oil. A single type of hydrocarbon oil may be used, but two or more different types of hydrocarbon oils may be used in combination.

[0130] The term "oil" as used herein means a non-aqueous compound that is liquid at room temperature (25° C.) and atmospheric pressure (760 mmHg) and is immiscible with water.

[0131] The term "hydrocarbon" as used herein means a compound formed by carbon and hydrogen atoms and does not contain any heteroatoms such as oxygen and nitrogen atoms.

[0132] (c) Hydrocarbon oils may form at least one fatty phase of the composition of the invention.

[0133] When the composition of the present invention is in the form of an O / W type emulsion, the (c) hydrocarbon oil in the composition of the present invention can form a dispersed fatty phase in the O / W type emulsion.

[0134] (c) The hydrocarbon oils may be of vegetable, mineral or synthetic origin.

[0135] Preferably, (c) the hydrocarbon oil is a non-polar oil. The term "non-polar oil" as used herein means an oil having a solubility parameter δa at 25° C. of 0 (J / cm 3 ) 1 / 2 The definition and calculation of solubility parameters in the Hansen three-dimensional solubility space is described in the article "The three dimensional solubility parameters" by CM Hansen, J. Paint Technol, Vol. 39, p. 105 (1967).

[0136] (c) The hydrocarbon oil may be selected from aliphatic, alicyclic and aromatic hydrocarbon oils, preferably aliphatic hydrocarbon oils, more preferably saturated aliphatic hydrocarbon oils.

[0137] The (c) hydrocarbon oil may be volatile or non-volatile. It is preferable that the (c) hydrocarbon oil is volatile. In other words, it is preferable that the (c) hydrocarbon oil is a volatile hydrocarbon oil.

[0138] For the purposes of the present invention, the term "volatile" oil means an oil that is capable of evaporating in less than one hour on contact with keratinous materials at room temperature (25°C) and atmospheric pressure (760 mmHg). Volatile oils may be liquid at room temperature and in particular have a non-zero vapor pressure at room temperature and atmospheric pressure, in particular a vapor pressure between 0.13 Pa and 40,000 Pa (10 -3 The pressure is within the range of 1.3 Pa to 13,000 Pa (0.01 to 100 mmHg), preferably within the range of 1.3 Pa to 1,300 Pa (0.01 to 10 mmHg), and more preferably within the range of 1.3 Pa to 1,300 Pa (0.01 to 10 mmHg).

[0139] According to one preferred embodiment, the volatile hydrocarbon oil has a flash point above 65°C, and better still above 80°C.

[0140] (c) Hydrocarbon oil is a branched C8-C 22 Hydrocarbons, preferably branched C9-C 21 Hydrocarbons, more preferably branched C 10 ~C 20 (c) It is even more preferred that the hydrocarbon oil is selected from the group consisting of isodecane, isododecane (also known as 2,2,4,4,6-pentamethylheptane), hydrogenated farnesene (hemisqualane), isohexadecane, and mixtures thereof.

[0141] On the other hand, (c) hydrocarbon oils also contain linear C8-C 22 Hydrocarbons, preferably linear C9-C 21 From hydrocarbons, more preferably linear C 10 ~C 20It may also be selected from alkanes. (c) It is even more preferred that the hydrocarbon oil is selected from the group consisting of n-decane, n-undecane, n-dodecane, n-tridecane, n-tetradecane, n-pentadecane, and n-hexadecane, n-heptadecane, n-octadecane, n-nonadecane, and mixtures thereof.

[0142] As the (c) hydrocarbon oil, one or more commercially available products can be used. For example, the (c) hydrocarbon oil can include C13-16 isoalkane, isohexadecane, C15-19 alkane, and mixtures thereof.

[0143] In one embodiment, the (c) hydrocarbon oil may be chosen from: - mineral oil, - liquid paraffin or its derivatives, - squalane or squalene, - Iso-eicosan, - naphthalene oil, polybutylenes, such as Indopol H-100 (molar mass or MW=965 g / mol), Indopol H-300 (MW=1,340 g / mol) and Indopol H-1500 (MW=2,160 g / mol), sold or manufactured by the company Amoco; - polyisobutene, hydrogenated polyisobutylenes, such as Parleam® sold by NOF Corporation, Panalane H-300 E (MW=1340 g / mol) sold or manufactured by Amoco, Viseal 20000 (MW=6,000 g / mol) sold or manufactured by Synteal, and Rewopal PIB 1000 (MW=1,000 g / mol) sold or manufactured by Witco, or Parleam Lite sold by NOF Corporation; - decene / butene copolymers, polybutene / polyisobutene copolymers, especially Indopol L-14; polydecene and hydrogenated polydecenes, such as Puresyn 10 (MW=723 g / mol) and Puresyn 150 (MW=9,200 g / mol) sold or manufactured by Mobil Chemicals, or Puresyn 6 sold by ExxonMobil Chemical, and - A mixture of these.

[0144] (c) The hydrocarbon oil is a volatile and non-volatile aliphatic saturated hydrocarbon, preferably a volatile and non-volatile C8-C 22 Alkanes, preferably volatile C8-C 22 It is preferably selected from alkanes.

[0145] The amount of (c) the hydrocarbon oil in the composition of the present invention may be 1 mass % or more, preferably 2 mass % or more, more preferably 3 mass % or more, based on the total mass of the composition.

[0146] On the other hand, the amount of (c) the hydrocarbon oil in the composition of the present invention may be 20 mass % or less, preferably 15 mass % or less, more preferably 10 mass % or less, based on the total mass of the composition.

[0147] The amount of (c) hydrocarbon oil in the composition of the present invention may be within the range of 1 mass % to 20 mass %, preferably 2 mass % to 15 mass %, and more preferably 3 mass % to 10 mass %, relative to the total mass of the composition.

[0148] The mass ratio of the amount of (c) hydrocarbon oil / the amount of (b) lipophilic polymer may be 7 or more, preferably 8 or more, and more preferably 9 or more.

[0149] The mass ratio of the amount of (c) hydrocarbon / the amount of (b) lipophilic polymer may be 13 or less, preferably 12 or less, and more preferably 11 or less.

[0150] The mass ratio of the amount of (c) hydrocarbon oil / the amount of (b) lipophilic polymer may be 7-13, preferably 8-12, and more preferably 9-11.

[0151] (UV filter) The composition of the present invention may comprise at least one UV filter (d). A single type of (d) UV filter or a combination of different types of (d) UV filters can be used.

[0152] The type of (d) UV filter is not limited. The UV filter can be selected from inorganic UV filters, organic UV filters, and mixtures thereof. It is preferred that the (d) UV filter is selected from organic UV filters.

[0153] The amount of the (d) UV filter in the composition of the present invention may be 1% by weight or more, preferably 5% by weight or more, more preferably 10% by weight or more, based on the total weight of the composition.

[0154] On the other hand, the amount of the (d) UV filter in the composition of the present invention may be 40% by mass or less, preferably 35% by mass or less, more preferably 30% by mass or less, based on the total mass of the composition.

[0155] The amount of the (d) UV filter in the composition of the present invention may be within the range of 1% by mass to 40% by mass, preferably 5% by mass to 35% by mass, and more preferably 10% by mass to 30% by mass, relative to the total mass of the composition.

[0156] (inorganic UV filter) (d) The UV filter may be selected from inorganic UV filters. If two or more organic UV filters are used, they may be the same or different.

[0157] The inorganic UV filters used in the present invention can be active in the UV-A and / or UV-B region. They can be hydrophilic and / or lipophilic. They are preferably insoluble in solvents such as water and ethanol that are commonly used in cosmetics.

[0158] The inorganic UV filter is preferably in the form of fine particles having an average (primary) particle size in the range of 1 nm to 50 μm, preferably 5 nm to 500 nm, more preferably 10 nm to 200 nm. In this specification, the average (primary) particle size or average (primary) particle diameter is the arithmetic mean diameter.

[0159] The inorganic UV filters may be selected from the group consisting of metal oxides, which may be coated or uncoated, and mixtures thereof.

[0160] Preferably, the inorganic UV filters are selected from pigments (average diameter of the primary particles: usually 5-50 nm, preferably 10-50 nm) formed of metal oxides, such as titanium oxide (amorphous or crystalline in rutile and / or anatase form), iron oxide, zinc oxide, zirconium oxide or cerium oxide, all of which are UV light protection agents known per se. Preferably, the inorganic UV filters are selected from titanium oxide, zinc oxide, more preferably from titanium oxide.

[0161] The inorganic UV filter may be coated or uncoated. The inorganic UV filter may have at least one coating. The coating may comprise at least one compound selected from the group consisting of alumina, silica, aluminum hydroxide, silicone, silane, fatty acid or its salt (e.g., sodium, potassium, zinc, iron or aluminum salt), fatty alcohol, lecithin, amino acid, polysaccharide, protein, alkanolamine, wax, e.g., beeswax, (meth)acrylic polymer, organic UV filter, and (per)fluoro compound.

[0162] It is preferred that the coating comprises at least one organic UV filter. As organic UV filters in the coating, dibenzoylmethane derivatives such as butyl methoxydibenzoylmethane (avobenzone) and 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethyl-butyl)phenol] (methylenebis-benzotriazolyltetramethylbutylphenol) commercially available under the name "TINOSORB M" by BASF are preferred.

[0163] As is known, the silicones in the coating may be organosilicon polymers or oligomers, including linear or cyclic and branched or crosslinked structures of various molecular weights, obtained by polymerization and / or polycondensation of suitable functional silanes, essentially consisting of main repeating units in which silicon atoms are bonded to one another via oxygen atoms (siloxane bonds) and optionally substituted hydrocarbon groups are bonded directly to said silicon atoms via carbon atoms.

[0164] The term "silicones" also includes the silanes, particularly alkylsilanes, required for their preparation.

[0165] The silicone used in the coating can preferably be selected from the group consisting of alkylsilanes, polydialkylsiloxanes and polyalkylhydrosiloxanes. Even more preferably, the silicone is selected from the group consisting of octyltrimethylsilane, polydimethylsiloxane and polymethylhydrosiloxane.

[0166] Of course, inorganic UV filters made from metal oxides may be treated with other surface treatments, in particular cerium oxide, alumina, silica, aluminum compounds, silicon compounds, or mixtures thereof, before being treated with silicone.

[0167] The coated inorganic UV filters may be prepared by subjecting the inorganic UV filters to one or more surface treatments of a chemical, electronic, mechanochemical and / or mechanical nature with any of the compounds mentioned above, as well as with polyethylene, metal alkoxides (titanium or aluminum alkoxides), metal oxides, sodium hexametaphosphate, and those shown, for example, in Cosmetics & Toiletries, February 1990, Vol. 105, pp. 53-64.

[0168] The coated inorganic UV filter may be: Titanium oxide coated with silica, such as the product "Sunveil" manufactured by Ikeda Bussan Co., Ltd., and "Sunsil TIN 50" manufactured by Sunjin Chemical Co., Ltd.; Titanium oxide coated with silica and iron oxide, for example the product "Sunveil F" manufactured by Ikeda Bussan Co., Ltd.; Titanium dioxide coated with silica and alumina, such as the product "Microtitanium Dioxide MT 500 SA" from Teika Corporation, the product "Tioveil" from Tioxide, and the product "Mirasun TiW 60" from Rhodia; Titanium oxide coated with alumina, such as the products "Tipaque TTO-55(B)" and "Tipaque TTO-55(A)" from Ishihara Sangyo Kaisha, Ltd., and "UVT 14 / 4" from Kemira; Titanium dioxide coated with alumina and aluminum stearate, such as the products "Microtitanium Dioxide MT 100 T, MT 100 TX, MT 100 Z or MT-01" from Teika Co., the products "Solaveil CT-10 W" and "Solaveil CT 100" from Uniquema, and the product "Eusolex T-AVO" from Merck; Titanium dioxide coated with alumina and aluminum laurate, such as the product "Microtitanium Dioxide MT 100 S" from Teika Co., Ltd.; Titanium dioxide coated with iron oxide and iron stearate, for example the product "Microtitanium Dioxide MT 100 F" from Teika Co., Ltd.; Titanium oxide coated with zinc oxide and zinc stearate, such as the product "BR351" from Teika Co., Ltd.; Titanium dioxide coated with silica and alumina and treated with silicone, such as the products "Microtitanium Dioxide MT 600 SAS", "Microtitanium Dioxide MT 500 SAS" and "Microtitanium Dioxide MT 100 SAS" from Teika Corporation; Titanium oxide coated with silica, alumina and aluminum stearate and treated with silicone, such as the product "STT-30-DS" from Titan Kogyo Co., Ltd.; Titanium oxide coated with silica and treated with silicone, e.g. the product "UV-Titan X 195" from the company Kemira; Titanium oxide coated with alumina and treated with silicone, for example the product "Tipaque TTO-55(S)" from Ishihara Sangyo Kaisha or the product "UV Titan M 262" from Kemira, Titanium oxide coated with triethanolamine, such as the product "STT-65-S" manufactured by Titan Kogyo Co., Ltd. Titanium dioxide coated with stearic acid, such as the product "Tipaque TTO-55(C)" from Ishihara Sangyo Kaisha, Ltd., or Titanium dioxide coated with sodium hexametaphosphate, for example the product "Microtitanium Dioxide MT 150 W" from Teika Corporation.

[0169] Other titanium dioxide pigments treated with silicone are preferably TiO2 having an average individual particle size of 25-40 nm and treated with octyltrimethylsilane, such as that sold under the trademark "T 805" by Degussa Silices, TiO2 having an average individual particle size of 21 nm and treated with polydimethylsiloxane, such as that sold under the trademark "70250 Cardre UF TiO2Si3" by Cardre, and anatase / rutile TiO2 having an average individual particle size of 25 nm and treated with polydimethylhydrosiloxane, such as that sold under the trademark "Microtitanium Dioxide USP Grade Hydrophobic" by Color Techniques.

[0170] Preferably, the following coated TiO2 can be used as coated inorganic UV filters: Stearic acid (and) aluminum hydroxide (and) TiO2, for example, the product "MT-100 TV" manufactured by Teika Co., Ltd., with an average primary particle size of 15 nm; Dimethicone (and) stearate (and) aluminum hydroxide (and) TiO2, for example, the product "SA-TTO-S4" manufactured by Miyoshi Kasei Co., Ltd., with an average primary particle size of 15 nm; Silica (and) TiO2, for example, the product "MT-100 WP" manufactured by Teika Co., Ltd., with an average primary particle size of 15 nm; Dimethicone (and) silica (and) aluminum hydroxide (and) TiO2, for example, the products "MT-Y02" and "MT-Y-110 M3S" manufactured by Teika Co., Ltd., having an average primary particle size of 10 nm; Dimethicone (and) aluminum hydroxide (and) TiO2, for example, the product "SA-TTO-S3" manufactured by Miyoshi Kasei Co., Ltd., with an average primary particle size of 15 nm; Dimethicone (and) alumina (and) TiO2, for example the product "UV TITAN M170" from Sachtleben, with an average primary particle size of 15 nm, and Silica (and) Aluminum Hydroxide (and) Alginate (and) TiO2, for example the product "MT-100 AQ" manufactured by Teika Co., Ltd., with an average primary particle size of 15 nm.

[0171] From the viewpoint of UV filtering ability, TiO2 coated with at least one organic UV filter is more preferred. For example, avobenzone (and) stearate (and) aluminum hydroxide (and) TiO2, such as the product "HXMT-100ZA" manufactured by Teika Co., Ltd., with an average primary particle size of 15 nm, can be used.

[0172] Uncoated titanium dioxide pigments are sold, for example, by Teika Co., Ltd. under the trademarks "Microtitanium Dioxide MT500B" or "Microtitanium Dioxide MT600B", by Degussa under the trademark "P 25", by Wacker under the trademark "Oxyde de titane transparent PW", by Miyoshi Kasei Co., Ltd. under the trademark "UFTR", by Tomen under the trademark "ITS" and by Tioxide under the trademark "Tioveil".

[0173] Uncoated zinc oxide pigments include, for example: Marketed under the trademark "Z-cote" by Sunsmart, Inc. Marketed under the trademark "Nanox" by Elementis, and Marketed by Nanophase Technologies under the trademark "Nanogard WCD 2025."

[0174] Coated zinc oxide includes, for example: one sold by Toshiba under the trademark "Oxide Zinc CS-5" (ZnO coated with polymethylhydrosiloxane); Commercially available under the trademark "Nanogard Zinc Oxide FN" from Nanophase Technologies (Finsolv TN, C 12 ~C15 (as a 40% dispersion in alkyl benzoate), those sold under the trademarks "Daitopersion Zn-30" and "Daitopersion Zn-50" by Daito Kasei Kogyo Co., Ltd. (dispersions in oxyethylated polydimethylsiloxane / cyclopolymethylsiloxane containing 30% or 50% nano zinc oxide coated with silica and polymethylhydrosiloxane); those marketed by Daikin Industries Ltd. under the trademark "NFD Ultrafine ZnO" (ZnO coated with a copolymer based on perfluoroalkyl phosphate and perfluoroalkylethyl as a dispersion in cyclopentasiloxane); one marketed by Shin-Etsu Chemical Co., Ltd. under the trademark "SPD-Z1" (ZnO dispersed in cyclodimethylsiloxane and coated with a silicone-grafted acrylic polymer); Marketed by ISP under the trademark "Escalol Z100" (alumina-treated ZnO dispersed in an ethylhexyl methoxycinnamate / PVP-hexadecene copolymer / methicone mixture); The one sold by Fuji Pigment Co., Ltd. under the trademark "Fuji ZnO-SMS-10" (ZnO coated with silica and polymethylsilsesquioxane) and the one sold by Elementis under the trademark "Nanox Gel TN" (C with hydroxystearic acid polycondensate) 12 ~C 15 ZnO dispersed at 55% in alkyl benzoate).

[0175] Uncoated cerium oxide pigments are sold, for example, under the trademark "Colloidal Cerium Oxide" by the company Rhone-Poulenc.

[0176] Uncoated iron oxide pigments are sold, for example, by the company Arnaud under the trademarks "Nanogard WCD 2002 (FE 45B)", "Nanogard Iron FE 45 BL AQ", "Nanogard FE 45R AQ" and "Nanogard WCD 2006 (FE 45R)" or by Mitsubishi Pencil Co., Ltd. under the trademark "TY-220".

[0177] Coated iron oxide pigments are sold, for example, by the company Arnaud under the trademarks "Nanogard WCD 2008 (FE 45 BFN)", "Nanogard WCD 2009 (FE 45B 556)", "Nanogard FE45 BL 345" and "Nanogard FE 45 BL" or by the company BASF under the trademark "Oxyde de fer transparent".

[0178] Mention may also be made of mixtures of metal oxides, in particular titanium dioxide and cerium dioxide, including an equal weight mixture of titanium dioxide coated with silica and cerium dioxide coated with silica sold under the trademark "Sunveil A" by Ikeda Bussan Co., Ltd., and also mixtures of titanium dioxide and zinc dioxide coated with alumina, silica and silicone, such as the product "M 261" sold by Kemira, or coated with alumina, silica and glycerol, such as the product "M 211" sold by Kemira.

[0179] Coated inorganic UV filters are preferred because the UV filtering effect of the inorganic UV filter can be enhanced. In addition, the coating can help to distribute the UV filter evenly or homogeneously in the composition of the present invention.

[0180] (Organic UV filter) (d) The UV filter may be selected from organic UV filters. When two or more organic UV filters are used, they may be the same or different.

[0181] Organic UV filters can be hydrophobic or water-insoluble. Organic UV filters can function as oil-based components. Therefore, organic UV filters can form the discontinuous or internal phase of the composition of the present invention, for example, when the composition of the present invention is in the form of an O / W emulsion.

[0182] The organic UV filters may be active in the UV-A and / or UV-B region. The organic UV filters may be lipophilic or oil-soluble.

[0183] The organic UV filter may be a solid or a liquid, the term "solid" meaning a substance that is not flowable at 1 atm and 25° C., the term "liquid" meaning a substance that is flowable.

[0184] The organic UV filters may be selected from the group consisting of anthranilic acid compounds, dibenzoylmethane compounds, cinnamic acid compounds, salicylic acid compounds, camphor compounds, benzophenone compounds, β,β-diphenylacrylate compounds, triazine compounds, benzotriazole compounds, benzalmalonate compounds, benzimidazole compounds, imidazoline compounds, bis-benzoazolyl compounds, p-aminobenzoic acid (PABA) compounds, methylene bis(hydroxyphenylbenzotriazole) compounds, benzoxazole compounds, shielding polymers and shielding silicones, dimers derived from α-alkylstyrenes, 4,4-diarylbutadiene compounds, guaiazulene and its derivatives, rutin and its derivatives, and mixtures thereof.

[0185] Examples of organic UV filters that may be mentioned are the following by their INCI names and mixtures thereof: anthranil compounds: methyl anthranilate, marketed under the trademark "Neo Heliopan MA" by the company Haarmann and Reimer; dibenzoylmethane compounds: in particular butyl methoxydibenzoylmethane, sold under the trademark "Parsol 1789" by the company Hoffmann-La Roche, and isopropyl dibenzoylmethane; cinnamic compounds, such as ethylhexyl methoxycinnamate, isopropyl methoxycinnamate, isopropoxy methoxycinnamate, sold under the trademark "Parsol MCX" by the company Hoffmann-La Roche, isoamyl methoxycinnamate, sold under the trademark "Neo Heliopan E 1000" by the company Haarmann and Reimer, cinoxate (2-ethoxyethyl-4-methoxycinnamate), DEA methoxycinnamate, diisopropyl methylcinnamate and glyceryl ethylhexanoate dimethoxycinnamate; - salicylic acids: homosalate (homomenthyl salicylate) sold under the trademark "Eusolex HMS" by Rona / EM Industries, ethylhexyl salicylate, glycol salicylate, butyloctyl salicylate, phenyl salicylate, dipropylene glycol salicylate sold under the trademark "Dipsal" by Scher, and TEA salicylate sold under the trademark "Neo Heliopan TS" by Haarmann and Reimer; - camphor compounds, in particular benzylidene camphor derivatives: 3-benzylidene camphor manufactured by the company Chimex under the trademark "Mexoryl SD", 4-methylbenzylidene camphor marketed by the company Merck under the trademark "Eusolex 6300", benzylidene camphorsulfonic acid manufactured by the company Chimex under the trademark "Mexoryl SL", camphor benzalkonium methosulfate manufactured by the company Chimex under the trademark "Mexoryl SO" and polyacrylamidomethylbenzylidene camphor manufactured by the company Chimex under the trademark "Mexoryl SW", - benzophenone compounds: benzophenone-1 (2,4-dihydroxybenzophenone) sold under the trademark "Uvinul 400" by BASF, benzophenone-2 (tetrahydroxybenzophenone) sold under the trademark "Uvinul D50" by BASF, benzophenone-3 (2-hydroxy-4-methoxybenzophenone) or oxybenzone sold under the trademark "Uvinul M40" by BASF, benzophenone-4 (hydroxymethoxybenzophenone sulfonic acid) sold under the trademark "Uvinul MS40" by BASF, benzophenone-5 (sodium hydroxymethoxybenzophenone sulfonate), benzophenone-6 (dihydroxydimethoxybenzophenone) sold under the trademark "Helisorb 11" by Norquay, benzophenone-8 sold under the trademark "Spectra-Sorb UV-24" by American Cyanamid, benzophenone-9 sold under the trademark "Uvinul" by BASF, Benzophenone-9 (disodium dihydroxydimethoxybenzophenone disulfonate), Benzophenone-12, and n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate (UVINUL A+ from BASF), commercially available under the tradename DS-49; β,β-diphenylacrylate compounds: in particular octocrylene, sold under the trademark "Uvinul N539" by the company BASF, and etocrylene, sold in particular under the trademark "Uvinul N35" by the company BASF; - triazine compounds: diethylhexylbutamidotriazone sold under the trademark "Uvasorb HEB" by the company Sigma 3V, 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, bis-ethylhexyloxyphenol methoxyphenyl triazine sold under the trademark "TINOSORB S" by the company CIBA GEIGY, and ethylhexyl triazone sold under the trademark "UVINUL T150" by the company BASF; - benzotriazole compounds, in particular phenylbenzotriazole derivatives: branched and linear 2-(2H-benzotriazol-2-yl)-6-dodecyl-4-methylpheno, as well as those described in US Pat. No. 5,240,975; benzalmalonate compounds: dineopentyl 4'-methoxybenzalmalonate and polyorganosiloxanes containing benzalmalonate functional groups, such as Polysilicone-15 sold under the trademark "Parsol SLX" by the company Hoffmann-LaRoche; - benzimidazole compounds, in particular phenylbenzimidazole derivatives; - imidazoline compounds: ethylhexyl dimethoxybenzylidene dioxoimidazoline propionate, - bis-benzoazolyl compounds: derivatives as described in EP 669323 and US Pat. No. 2,463,264; para-aminobenzoic acid compounds: PABA (p-aminobenzoic acid), ethyl PABA, ethyl dihydroxypropyl PABA, dimethyl PABA pentyl, dimethyl PABA ethylhexyl, in particular dimethyl PABA sold under the trademark "Escalol 507" by the company ISP, glyceryl PABA and PEG-25 PABA sold under the trademark "Uvinul P25" by the company BASF; methylenebis-(hydroxyphenylbenzotriazole) compounds, such as 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-methyl-phenol] sold in solid form under the trademark "Mixxim BB / 200" by Fairmount Chemical, 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol] sold under the trademark "Tinosorb M" by BASF or in micronized form of an aqueous dispersion under the trademark "Mixxim BB / 100" by Fairmount Chemical, and derivatives described in US Pat. Nos. 5,237,071, 5,166,355, GB Pat. No. 2,303,549, DE Pat. No. 19726184 and EP 893119, and

[0186] [ka]

[0187] Drometrizole trisiloxane, sold under the trademark "Silatrizole" by Rhodia Chimie or under the trademark "Mexoryl XL" by L'Oreal, as shown in benzoxazole compounds: 2,4-bis[5-1(dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2-ethylhexyl)imino-1,3,5-triazine sold under the trademark Uvasorb K2A by the company Sigma 3V; - Obscuring polymers and obscuring silicones: silicones as described in WO 93 / 04665; - dimers derived from α-alkylstyrenes: dimers as described in DE 19855649; - 4,4-Diarylbutadiene compounds: 1,1-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene.

[0188] It is preferred that the organic UV filter is selected from the group consisting of: Butyl methoxydibenzoylmethane, ethylhexyl methoxycinnamate, homosalate, ethylhexyl salicylate, octocrylene, benzophenone-3, benzophenone-4, benzophenone-5, n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, 1,1'-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone 4-methylbenzylidene camphor, ethylhexyl triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylhexyl butamido triazone, 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, 2,4,6-tris(diisobutyl 4'-aminobenzalmalonate)-s-triazine, 2,4-bis-(n -butyl 4'-aminobenzalmalonate)-6-[(3-{1,3,3,3-tetramethyl-1-[(trimethylsilyloxy]disiloxanyl}propyl)amino]-s-triazine, 2,4,6-tris-(diphenyl)-triazine, 2,4,6-tris-(terphenyl)-triazine, methylene bis-benzotriazolyl tetramethylbutylphenol, drometrizole trisiloxane, polysilicone-15, dineopentyl 4'-methoxybenzalmalonate, 1,1-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene, 2,4-bis[5-1(dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2-ethylhexyl)imino-1,3,5-triazine, camphor benzalkonium methosulfate, and mixtures thereof.

[0189] More preferably, the organic UV filter is selected from the group consisting of butyl methoxydibenzoylmethane, bis-ethylhexylphenol methoxyphenyl triazine, ethylhexyl triazone, drometrizole trisiloxane, ethylhexyl salicylate, octocrylene, homosalate, and mixtures thereof.

[0190] (d) The UV filter is preferably selected from organic UV filters, more preferably selected from the group consisting of butyl methoxydibenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, ethylhexyl triazone, drometrizole trisiloxane, ethylhexyl salicylate, octocrylene, homosalate, and mixtures thereof.

[0191] (water) The composition of the present invention may also comprise (e) water.

[0192] (e) Water, when present, can form the aqueous phase of the compositions of the present invention.

[0193] When the composition of the present invention is in the form of an O / W emulsion, (e) water in the composition of the present invention, if present, can form a continuous aqueous phase in the O / W emulsion.

[0194] The amount of (e) water in the composition of the present invention may be 20% by mass or more, preferably 30% by mass or more, and more preferably 40% by mass or more, based on the total mass of the composition.

[0195] On the other hand, the amount of (e) water in the composition of the present invention may be 70% by mass or less, preferably 65% ​​by mass or less, and more preferably 60% by mass or less, based on the total mass of the composition.

[0196] The amount of (e) water in the composition of the present invention may be within the range of 20% by mass to 70% by mass, preferably 30% by mass to 65% by mass, and more preferably 40% by mass to 60% by mass, relative to the total mass of the composition.

[0197] (Optional Ingredients) In addition to the above-mentioned components, the composition of the present invention may contain optional components typically used in cosmetics, specifically, for example, a lipophilic thickener derived from a synthetic polymer, (c) a volatile or non-volatile organic solvent other than a hydrocarbon oil, an anionic polymer, a cationic polymer, an amphoteric polymer, a nonionic polymer, silicone and a silicone derivative, a natural extract derived from an animal or a plant, etc., within a range that does not impair the effects of the present invention.

[0198] The composition of the present invention may contain the above optional components in an amount of 0.01% by mass to 40% by mass, preferably 0.05% by mass to 30% by mass, and more preferably 0.1% by mass to 20% by mass, relative to the total mass of the composition.

[0199] [Preparation] The composition of the present invention can be prepared by mixing the essential components described above and, if necessary, the optional components described above.

[0200] The method and means of mixing the above essential components and optional components are not limited. Any conventional method and means can be used to mix the above essential components and optional components to prepare the composition of the present invention.

[0201] [form] The form of the composition of the present invention is not particularly limited, and it can take various forms such as a solution or an emulsion.

[0202] The composition of the invention is preferably in the form of an emulsion.More preferably, the composition of the invention is in the form of an O / W emulsion, which comprises a fatty phase dispersed in a continuous aqueous phase.The dispersed fatty phase can be oil droplets in the aqueous phase.

[0203] 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, when the composition of the present invention has an O / W type composition or structure, it can provide a pleasant sensation in use because of the immediate sensation of freshness that the aqueous phase can provide.

[0204] [Method and Use] It is preferred that the composition of the present invention is a cosmetic or dermatological composition, preferably a cosmetic composition, more preferably a cosmetic composition for keratinous materials such as the skin.

[0205] The compositions of the present invention can be used for non-therapeutic methods, such as cosmetic methods, for treating keratinous materials, such as the skin, mucous membranes and / or scalp, by application to the keratinous materials.

[0206] The present invention also relates to a cosmetic method for treating keratinous materials, such as the skin, which comprises the step of applying a composition of the present invention to the keratinous materials.

[0207] The present invention also relates to the use of the compositions according to the invention as or in cosmetics, such as care products and make-up products for the body and / or for the facial skin and / or for the mucous membranes and / or for the scalp.

[0208] In other words, the composition of the present invention can be used as a cosmetic as it is. Alternatively, the composition of the present invention can be used as one component of a cosmetic. For example, the composition of the present invention can be added to any other component or combined with any other component to form a cosmetic.

[0209] The care product may be a lotion, in particular a milky lotion, a cream, etc. The make-up product may be a foundation, a lipstick, a lip gloss, an eyeshadow, etc.

[0210] Another aspect of the present invention is a method for producing a (a) at least one gemini surfactant; (b) at least one lipophilic thickener; (c) at least one hydrocarbon oil in a composition comprising The present invention relates to a use for stabilizing a composition.

[0211] Another aspect of the present invention is also (a) at least one gemini surfactant; (b) at least one lipophilic thickener; and (d) at least one UV filter, preferably at least one organic UV filter; (e) Water and (c) at least one hydrocarbon oil in a composition comprising (e) water, and (d) a continuous aqueous phase comprising a dispersed fatty phase comprising a UV filter; It also relates to the use for reducing the size of the fat phase.

[0212] The above explanations of the components (a) to (e) of the composition of the present invention can be applied to the above explanations of the uses of the present invention. The explanations of the preparation and form of the composition of the present invention can also be applied to the explanations of the composition described in the above explanations of the uses. EXAMPLES

[0213] 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.

[0214] (Examples 1 to 3 and Comparative Examples 1 to 8) The following compositions of Examples 1-3 and Comparative Examples 1-8 shown in Table 1 were prepared by mixing the components shown in Table 1 as follows: (1) Mixing the ingredients of Phase A1 at 60-65°C to form a homogenous mixture of Phase A1; (2) adding the ingredients of Phase A2 to the homogenous mixture of Phase A1 at 60-65°C, followed by mixing with a homogenizer at 2,000 rpm at 60-65°C for 5 minutes to form a homogenous mixture of Phase A1 and Phase A2; (3) Adding the ingredients of Phase A3 to the homogenous mixture of Phase A1 and Phase A2, followed by mixing with a homogenizer at 2,000 rpm at 60-65°C for 5 minutes to form an aqueous phase; (4) Mix the ingredients of phase B1 separately at 75-80°C to form a fat phase; (5) Mix the aqueous phase and the oil phase using a homogenizer at 4,000 rpm at 60-65°C for 10 minutes to obtain a uniform mixture; (6) Cooling the homogenous mixture of phases A1, A2, A3 and B1 to about 28° C.; (7) The ingredients of Phase C and Phase D are added to the homogenous mixture of Phases A1, A2, A3 and B1 at about 28° C., followed by mixing with a homogenizer at 3,000 rpm for 5 minutes.

[0215] The compositions of Examples 1 to 3 and Comparative Examples 1 to 8 were in the form of O / W emulsions.

[0216] The amounts of the ingredients shown in Table 1 are all based on "mass %" of the active ingredient.

[0217] [Table 1A]

[0218] [Table 1B]

[0219] [evaluation] (Maximum droplet size) Each of the compositions of Examples 1-3 and Comparative Examples 1-8 was observed under a microscope (Olympus Polarizing Microscope BX51-P) to measure the maximum size of droplets (fatty phase) immediately after preparation of the composition at about 28° C. The maximum observable droplet size was measured using image analysis software. The maximum droplet size was classified according to the following evaluation criteria: Good: Less than 5 nm Defective: 20nm or less Very poor: over 100 nm

[0220] The results of the above classification are shown in Table 1.

[0221] (Summary) The compositions of Examples 1-3 contained extremely fine droplets of the fatty phase. The fine droplets are difficult to aggregate and cause phase separation. Therefore, the compositions of Examples 1-3 are stable.

[0222] The compositions of Comparative Examples 1-8 contained larger droplets of the fatty phase. It is relatively easy for the larger droplets to aggregate and cause phase separation. Therefore, the compositions of Comparative Examples 1-8 are less stable than the compositions of Examples 1-3.

Claims

1. (a) at least one gemini-type surfactant, (b) at least one lipophilic thickener, (c) at least one hydrocarbon oil and A composition comprising, preferably a cosmetic composition, more preferably a skin cosmetic composition.

2. The aforementioned (a) Gemini-type surfactant is of formula (III): 【Chemistry 1】 [In the formula, Y' independently represents a carboxylic acid group, or an alkali salt of a carboxylic acid group, such as a sodium salt of a carboxylic acid group. j1, k1, j2, and k2 are integers such that (j1, k1, j2, k2) = (2, 0, 2, 0), (2, 0, 0, 2), (0, 2, 2, 0), and (0, 2, 0, 2). l represents an integer between 6 and 16, preferably between 8 and 14, more preferably between 10 and 12. The composition according to claim 1, selected from compounds represented by

3. The composition according to claim 1 or 2, wherein the (a) gemini-type surfactant is selected from the group consisting of dilauramidoglutamidridine sodium, dimyristoylglutamidridine sodium, distearoylglutamidridine sodium, and mixtures thereof.

4. The composition according to claim 1, wherein the amount of (a) the gemini-type surfactant is in the range of 0.01% to 10% by mass, preferably 0.05% to 5% by mass, and more preferably 0.1% to 1% by mass, based on the total mass of the composition.

5. The (b) lipophilic thickener is a lipophilic organic thickener, preferably a lipophilic organic polymer, more preferably a lipophilic organic semicrystalline polymer, and even more preferably (meth)acrylic acid and C 10 ~C 30 The composition according to claim 1, selected from at least one polymer of an aliphatic alcohol.

6. The composition according to claim 1, wherein the amount of (b) lipophilic thickener is 0.01% to 10% by mass, preferably 0.05% to 5% by mass, and more preferably 0.1% to 2% by mass, based on the total mass of the composition.

7. The (c) hydrocarbon oil is a volatile and non-volatile aliphatic saturated hydrocarbon, preferably a volatile and non-volatile C 8 ~C 22 Alkanes, more preferably volatile C 8 ~C 22 A composition according to any one of claims 1 to 6, selected from alkanes.

8. The composition according to claim 1, wherein the amount of (c) hydrocarbon oil is in the range of 1% to 20% by mass, preferably 2% to 15% by mass, and more preferably 3% to 10% by mass, based on the total mass of the composition.

9. The composition according to claim 1, wherein the mass ratio of the amount of (c) hydrocarbon oil to the amount of (b) lipophilic polymer is 7 to 13, preferably 8 to 12, more preferably 9 to 11.

10. (d) The composition according to claim 1, further comprising at least one UV filter, wherein the UV filter is preferably selected from organic UV filters, and more preferably selected from the group consisting of butyl methoxydimenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, ethylhexyl triazone, drometrizole trisiloxane, ethylhexyl salicylate, octocrylene, homosalate, and mixtures thereof.

11. The composition according to claim 10, wherein the amount of the (d) UV filter is 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.

12. (e) The composition according to claim 1, further comprising water.

13. The composition according to claim 12, wherein the amount of water is in the range of 20% to 70% by mass, preferably 30% to 65% by mass, and more preferably 40% to 60% by mass, based on the total mass of the composition.

14. The composition according to claim 12, in the form of an O / W emulsion.

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

Images