IMPROVED EMULSION COMPOSITION

Abstract

IMPROVED EMULSION COMPOSITION The present invention relates to an emulsion composition comprising: (a) at least one cationic polymer; (b) at least one fatty acid; (c) at least one oil-soluble organic UV filter; and (d) at least one oil in an amount of 15% by weight or less relative to the total weight of the composition. The present invention can provide a stable emulsion composition that can prevent the formation of organic UV filter crystals even if it includes a relatively small amount of oils as solvents. Figure for abstract: none

Description

Title of the invention: IMPROVED EMULSION COMPOSITION technical field

[0001] The present invention relates to an emulsion composition, preferably a sun care composition in the form of a stable O / W emulsion, for a keratinous material such as skin. CONTEXT OF THE INVENTION

[0002] Sun care products are widely used to protect keratinous substances, particularly the skin, from damage caused by UV radiation. Among sun care products, emulsion-based sun care compositions are widely distributed because they are generally water-resistant and can therefore remain on the skin's surface even after exposure to water or perspiration.

[0003] In cosmetic sun care products, organic UV filters are widely used to impart UV protection properties to sun care compositions.

[0004] For example, WO2023 / 277194 discloses a W / H emulsion composition comprising:

[0005] (a) at least one oil-soluble organic UV filter, (b) at least one powder other than a microplastic filler,

[0006] (c) at least one cationic polymer, and (d) at least one oil, in which the composition includes a microplastic filler in an amount of 5% by weight or less, preferably 3% by weight or less, and more preferably 1% by weight or less, or the composition is free of microplastic filler.

[0007] In addition, document JP-A-2014-185152 discloses a microcapsule comprising a solid sunscreen and a natural polymer forming the microcapsule to encapsulate the solid sunscreen, wherein the solid sunscreen agent is an inorganic ultraviolet (UV) screen agent, an organic ultraviolet absorber or a mixture thereof; and the natural polymer is agar-agar, agarose, cellulose, chitosan or a derivative thereof.

[0008] Furthermore, document JP-B-3766070 discloses a water-resistant O / W cosmetic comprising a cationic polymer emulsifier derived from a compound obtained by partially introducing a fatty acid group having 8 to 20 carbon atoms in an amount of 0.1 to 50.0% by mass into chitin, chitosan, or quaternized chitosan; an oily substance; water; and a zwitterionic polymer composed of copolymer of 2-methacryloyloxyethyl phosphocholine and butyl methacrylate; wherein the cosmetic has a protective effect against ultraviolet obtained by the formulation of at least one of an organic ultraviolet absorber and inorganic fine particles having an ultraviolet scattering effect.

[0009] However, there may be some cases where organic UV filters in emulsion compositions form crystals during storage in conventional sun care emulsion compositions.

[0010] Furthermore, the formulation of environmentally friendly cosmetic products, which are designed and developed with environmental considerations in mind, is becoming a major objective in an effort to address global challenges. It is therefore essential to offer more sustainable compositions, preparation processes, and ingredients to meet these environmental concerns.

[0011] In this context, it is important to develop new cosmetic compositions, such as new sun care cosmetic compositions, by promoting the use of renewable raw materials and / or materials with a good naturalness index and / or materials of natural origin.

[0012] Thus, there is still a demand to propose new formulations of stable emulsion compositions that can prevent the formation of organic UV filter crystals. DISCLOSURE OF THE INVENTION

[0013] An objective of the present invention is to provide a stable emulsion composition that can prevent the formation of organic UV filter crystals even if it includes a relatively small amount of oils as solvents.

[0014] The above objective of the present invention can be achieved by an emulsion composition comprising: a. at least one cationic polymer; b. at least one fatty acid; c. at least one oil-soluble organic UV filter; and d. at least one oil in a quantity of 15% by weight or less compared to the total weight of the composition.

[0015] The (a) cationic polymer can be chosen from polyamines.

[0016] The (a) cationic polymer can be selected from chitosan, polylysine and one of their mixtures, and preferably chitosan.

[0017] The (b) fatty acid may be selected from saturated or unsaturated fatty acids, linear or branched in C8-C24, preferably in Ci2-C22, such as isopalmitic acid (Ci6), isostearic acid (Ci8), myristoleic acid (Ci4), palmitoleic acid (Ci6) and oleic acid (Ci8), and mixtures thereof.

[0018] The (c) oil-soluble organic UV filter may be a solid oil-soluble organic UV filter.

[0019] The (c) oil-soluble organic UV filter can be selected from an oil-soluble organic UV filter chosen from oil-soluble organic UV-A and UV-B filters, such as benzophenone compounds, benzotriazole compounds, bis-resorcinyl triazine compounds and benzoxazole compounds.

[0020] The (d) oil may be selected from ester oils, preferably ester oils of monoesters of monoacids and monoalcohols, such as ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isonanoate, isononyl isonanoate, isodecyl neopentanoate, isostearyl neopentanoate and their combinations.

[0021] The (a) cationic polymer may be present in an amount from 0.1% to 10% by weight, preferably from 0.5% to 7.5% by weight and more preferably from 1% to 5% by weight, relative to the total weight of the composition.

[0022] The (b) fatty acid may be present in an amount from 1% to 15% by weight, preferably from 2% to 10% by weight, and more preferably from 3% to 7.5% by weight, relative to the total weight of the composition.

[0023] The (c) oil-soluble organic UV filter may be present in an amount from 0.5% to 10% by weight, preferably from 1% to 7.5% by weight and more preferably from 2% to 5% by weight, relative to the total weight of the composition.

[0024] The (d) oil may be present in an amount from 0.5% to 15% by weight, preferably from 1% to 12.5% ​​by weight, and more preferably from 3% to 10% by weight relative to the total weight of the composition.

[0025] The composition may further comprise at least one polyol.

[0026] The composition may further include one or more surfactants in a quantity of 1% by weight or less, preferably 0.5% by weight or less, and more preferably 0.1% by weight or less, relative to the total weight of the composition, or the composition may be free of any surfactant.

[0027] The present invention also relates to a cosmetic process for a keratinous material such as skin, comprising the application to the keratinous material of the composition according to the present invention. Best embodiment of the invention

[0028] After extensive research, the inventors made the surprising discovery that an emulsion composition comprising a combination of (a) at least one cationic polymer, (b) at least one fatty acid, (c) at least one oil-soluble organic UV filter, and (d) at least one oil can provide a stable emulsion composition that can prevent crystal formation of (c) oil-soluble organic UV filters even if it includes a relatively small amount of (d) oils as solvents for the oil-soluble organic UV filters, and have thus finalized the present invention.

[0029] Thus, the present invention relates to an emulsion composition, comprising: a. at least one cationic polymer; b. at least one fatty acid; c. at least one oil-soluble organic UV filter; and d. at least one oil in a quantity of 15% by weight or less compared to the total weight of the composition.

[0030] The emulsion composition and the cosmetic process according to the present invention will be explained in more detail below. [Composition]

[0031] The composition according to the present invention includes (a) at least one cationic polymer, (b) at least one fatty acid, (c) at least one oil-soluble organic UV filter, and (d) at least one oil.

[0032] The composition according to the present invention is in the form of an emulsion, particularly one of liquid or semi-liquid consistency, of the O / W, O / W, or multiple O / W / W or O / W / H type. Preferably, the composition according to the present invention is an emulsion having multiple discontinuous oily phases dispersed as droplets, of the O / W, O / W / W, or O / W / H type. Preferably, the composition according to the present invention is an emulsion comprising multiple discontinuous oily phases dispersed in a continuous aqueous phase. Preferably, the composition according to the present invention is an O / W emulsion comprising multiple discontinuous oily phases dispersed and a continuous aqueous phase.

[0033] The emulsion composition according to the present invention can provide a stable emulsion structure without the use of any surfactant(s). It is believed that this effect can be produced by a complex of (a) a cationic polymer and (b) a fatty acid.

[0034] Furthermore, the present invention can prevent the formation of crystals in (c) oil-soluble organic UV filters even if it includes a relatively small amount of oils as solvents. It has been discovered, surprisingly, that the combination of (a) the cationic polymer and (b) the fatty acid can inhibit crystal formation in (c) oil-soluble organic UV filters even if the composition includes a relatively small amount of oils as solvents for the oil-soluble organic UV filters. Thus, the composition according to the present invention can provide an improved, aqueous, and / or fresh texture through a small amount of (d) oils, since oils generally lead to an oily sensation.

[0035] The ingredients of the composition will be described in detail below. (Cationic Polymer)

[0036] The composition according to the present invention comprises (a) at least one cationic polymer. Two or more types of cationic polymers may be used in combination. Thus, a single type of cationic polymer or a combination of different types of cationic polymers may be used.

[0037] A cationic polymer has a positive charge density. The charge density of the cationic polymer can be from 0.01 meq / g to 20 meq / g, preferably from 0.05 to 15 meq / g and more preferably from 0.1 to 10 meq / g.

[0038] The cationic polymer can be hydrophilic or water-soluble. Thus, in a preferred embodiment, the (a) cationic polymer is present in the aqueous phase(s) of the emulsion composition according to the present invention.

[0039] The molecular weight of (a) the cationic polymer may be greater than 20,000. The molecular weight of the cationic polymer may be greater than 30,000, preferably greater than 50,000 and, more preferably, greater than 70,000. The upper limit of the molecular weight of (a) the cationic polymer is not particularly limited, but is generally less than 500,000, preferably less than 400,000, more preferably less than 300,000, and even more preferably less than 200,000.

[0040] In one embodiment of the present invention, the molecular weight of the (a) cationic polymer ranges from more than 20,000 to less than 500,000, preferably from more than 30,000 to less than 400,000, more preferably from more than 50,000 to less than 300,000, and even more preferably from more than 70,000 to less than 200,000.

[0041] Unless otherwise defined in the description, "molecular weight" means a number-average molecular weight. The molecular weight can be measured or determined by gel permeation chromatography, for example in accordance with ASTM D5296-19.

[0042] The (a) cationic polymer may have at least one positively chargeable and / or positively charged fraction selected from the group consisting of a primary, secondary or tertiary amino group, a quaternary ammonium group, a guanidine group, a biguanide group, an imidazole group, an imino group and a pyridyl group. The term "amino group" (primary) here means the -NH2 group.

[0043] The (a) cationic polymer can be a homopolymer or a copolymer. By "copolymer" is meant both copolymers obtained from two kinds of monomers and those obtained from more than two kinds of monomers, such as terpolymers obtained from three kinds of monomers.

[0044]

[0045] (a) The cationic polymer may be chosen from natural and synthetic cationic polymers. Non-limiting examples of cationic polymers are as follows. (1) Homopolymers and copolymers derived from acrylic or methacrylic esters and amides and comprising at least one motif selected from the motifs of the following formulas:

[0046]

[0047]

[0048]

[0049]

[0050] in which: - Ri and R2, which can be identical or different, are chosen from hydrogen and alkyl groups comprising 1 to 6 carbon atoms, for example, methyl and ethyl groups; - the R3s, which can be identical or different, are chosen from hydrogen and CH3; - the symbols A, which may be identical or different, are chosen from linear or branched alkyl groups comprising 1 to 6 carbon atoms, for example 2 to 3 carbon atoms, and hydroxyalkyl groups comprising 1 to 4 carbon atoms; - R4, R5 and R6, which may be identical or different, are chosen from alkyl groups comprising from 1 to 18 carbon atoms and benzyl groups and, in at least one embodiment, alkyl groups comprising from 1 to 6 carbon atoms and

[0051] - X is a union derived from an inorganic or organic acid, such as anions methosulfate and halides, for example chloride and bromide.

[0052] The copolymers of family (1) may also include at least one motif derived from comonomers which may be selected from acrylamides, methacrylamides, diacetone acrylamides, acrylamides and methacrylamides substituted on the nitrogen atom with lower alkyl groups in Ci-C4, groups derived from acrylic or methacrylic acids and their esters, vinyllactams such as vinylpyrrolidone and vinylcaprolactam, and vinyl esters.

[0053] Examples of copolymers of family (1) include, but are not limited to:

[0054] - acrylamide and dimethylaminoethyl methacrylate copolymers quantified with dimethyl sulfate or with a dimethyl halide,

[0055] - acrylamide and methacryloyloxyethyl chloride copolymers trimethylammonium described, for example, in European patent application no. 0 080 976,

[0056] - acrylamide and methosulfate copolymers methacryloyloxyethyltrimethylammonium,

[0057] - vinylpyrrolidone / d methacrylate or acrylate copolymers Quatmized or unquantified ialkylaminoalkyl compounds, described, for example, in French patents no. 2,077,143 and 2,393,573,

[0058] - dimethylaminoethyl / vinylcaprolactam methacrylate terpolymers / vinylpyrrolidone

[0059] - vinylpyrrolidone / methacrylamidopropyldimethylamine copolymers, quaternized vinylpyrrolidone / dimethylaminopropylmethacrylamide copolymers, and

[0060] - crosslinked polymers of methacryloyloxy(Ci-C4)alkyltri(Ci-C4) salts )alkylammonium such as polymers obtained by homopolymerization of quaternized dimethylaminoethyl methacrylate with methyl chloride, or by copolymerization of acrylamide with quaternized dimethylaminoethyl methacrylate with methyl chloride, the homopolymerization or copolymerization being followed by crosslinking with a compound containing an olefinic unsaturation, for example, methylenebisacrylamide.

[0061] Preferably, the copolymers of family (1) have a motif derived from vinylpyrrolidone. More preferably, the copolymers of family (1) have at least one pendant ring structure derived from vinylpyrrolidone. On the other hand, it is preferable that the copolymers of family (1) do not include a ring structure in the polymer backbone.

[0062] Copolymers of family (1) having vinylpyrrolidone motifs may be selected from: i. Copolymers comprising vinylpyrrolidone motifs and dimethylaminoethyl methacrylate motifs, for example:

[0063] • vinylpyrrolidone / dimethylaminoethyl methacrylate copolymers; by For example, the vinylpyrrolidone / dimethylaminoethyl methacrylate copolymer (20 / 80 by weight) sold under the trade name Copolymer 845 by ISP,

[0064] • vinylpyrrolidone / dimethylaminoethyl methacrylate copolymers quaternized with diethyl sulfate; for example, the vinylpyrrolidone / dimethylaminoethyl methacrylate copolymer quaternized with diethyl sulfate, sold under the trade names Gafquat 734, 755, 755, and 755L by the company ISP,

[0065] • vinylpyrrolidone / dimethylaminoethyl methacrylate copolymers / hydrophilic polyurethane; for example, the vinylpyrrolidone / dimethylaminoethyl methacrylate / hydrophilic polyurethane copolymer, sold under the trade name Pecogel GC-310 by UCIB, or under the trade names Aquamere C1031 and C1511 by Blagden Chemicals,

[0066] • vinylpyrrolidone / dimethylaminoethyl methacrylate / olefin copolymers in C8-Ci6, quaternized or not; for example, the C8-Ci6 vinylpyrrolidone / dimethylaminoethyl methacrylate / olefin copolymer sold under the trade names Ganex ACP1050 to 1057, 1062-1069 and 1079-1086 by ISP,

[0067] and

[0068] • vinylpyrrolidone / dimethylaminoethyl methacrylate copolymers / vinylcaprolactam; for example, the vinylpyrrolidone / dimethylaminoethyl methacrylate / vinylcaprolactam copolymer sold under the trade name Gaffix VC713 by the company ISP; i. Copolymers comprising vinylpyrrolidone motifs and methacrylamidopropyltrimethylammonium (MAPTAC) motifs, for example:

[0069] • vinylpyrrolidone / methacrylamidopropyltrimethylammonium copolymers; for example, the vinylpyrrolidone / MAPTAC copolymer sold under the trade names Gafquat ACP1011 and Gafquat HS 100 by the company ISP,

[0070] and

[0071] • vinylpyrrolidone / methacrylamidopropyltrimethylammonium terpolymers / vinylcaprolactam; for example, the vinylpyrrolidone / MAPTAC / vinylcaprolactam terpolymer sold under the trade names Polymer ACP 1059, 1060 and 1156 by the company ISP; and i. Copolymers comprising vinylpyrrolidone motifs and methylvinylimidazolium motifs, for example:

[0072] • vinylpyrrolidone / methylvinylimidazolium chloride copolymers; by for example, vinylpyrrolidone / methylvinylimidazolium chloride copolymer sold under the trade names Luviquat FC370, FC550, FC905 and HM552 by BASF,

[0073] • vinylpyrrolidone / methylvinylimidazolium chloride copolymers / vinylimidazole; for example, the vinylpyrrolidone / methylvinylimidazolium chloride / vinylimidazole copolymer sold under the trade name Luviquat 8155 by BASF,

[0074] and

[0075] • vinylpyrrolidone / methylvinylimidazolium methosulfate copolymers; by For example, the vinylpyrrolidone / methylvinylimidazolium methosulfate copolymer sold under the trade name Luviquat MS370 by BASF.

[0076] It is preferable that the copolymers of family (1) be chosen from the copolymer comprising vinylpyrrolidone motifs and dimethylaminoethyl methacrylate motifs, more preferably chosen from the copolymers of vinylpyrrolidone / dimethylaminoethyl methacrylate quaternized with diethyl sulfate, and even more preferably Polyquatemium-11. 1. Cationic cellulose derivatives such as cellulose ether derivatives comprising quaternary ammonium groups, as described, for example, in French patent no. 1,492,597, such as the polymers sold under the names "JR" (JR 400, JR 125, JR 30M) or "LR" (LR 400, LR 30M) by Union Carbide Corporation. These polymers are also defined in the CTFA dictionary as quaternary ammonium compounds of hydroxyethylcellulose that have reacted with an epoxide substituted with a trimethylammonium group.

[0077] Preferably, the cationic cellulose derivatives are quaternized hydroxyethylcelluloses modified by at least one quaternary ammonium group comprising at least one fatty chain, such as alkyl, arylalkyl, or alkylaryl groups comprising at least 8 carbon atoms, or mixtures thereof. The alkyl radicals attached to the quaternary ammonium group may preferably contain from 8 to 30 carbon atoms, in particular from 10 to 30 carbon atoms. The aryl radicals preferably designate phenyl, benzyl, naphthyl, or anthryl groups.

[0078] More preferably, the cationic polymer derivatives may comprise at least one quaternary ammonium group including at least one C8-C30 hydrocarbon group.

[0079] Examples of quaternized alkylhydroxyethylcelluloses containing C8-C30 fatty acid chains that may be cited include the products Quatrisoft LM 200, Quatrisoft LM-X 529-18-A, Quatrisoft LM-X 529-18B (C12 alkyl) and Quatrisoft LM-X 529-8 (C18 alkyl) or Softcat Polymer SL100, Softcat SX-1300X, Softcat SX-1300H, Softcat SL-5, Softcat SL-30, Softcat SL-60, Softcat SK-MH, Softcat SX-400X, Softcat SX-400H, Softcat SK-L, Softcat SK-M and Softcat SK-H, sold by the company Amerchol and the products Crodacel QM, Crodacel QL (alkyl C12) and Crodacel QS (alkyl Cl8) sold by the company Croda.

[0080] "It is preferable that the cationic polymer be chosen from the group Polyquaternium-24, Polyquaternium-67, and their mixtures. Polyquaternium-67 is the most preferable.

[0081] From another point of view, the cationic cellulose derivatives could also be chosen from cationic cellulose ether or ethers, comprising from 4,000 to 10,000 anhydroglucose units, said anhydroglucose units being substituted by at least: i. a formula substitute

[0082] [R4R5R6R9N+](X2)

[0083] in which

[0084] - R4 and R5 represent, independently of each other, a methyl or ethyl group,

[0085] - R6 represents a linear or branched C8-C24 alkyl or aralkyl group in which the linear or branched alkyl portion is at C8-C24,

[0086] - R9 represents a divalent group that allows attachment to the anhydroglucose group and which is chosen from -(B)q-CH2 -CH0H-CH2- and -CH2CH2-,

[0087] - q denoting 0 or 1,

[0088] - B denoting the divalent group -(CH2CH2 O)n-,

[0089] - n' is an integer ranging from 1 to 100,

[0090] - X2 represents an anion; and i. a formula substitute

[0091] [R1R2R3R8N+](X1 )

[0092] in which:

[0093] - R1, R2 and R3 represent, independently of each other, a methyl group or ethyl,

[0094] - R8 represents a divalent group that allows attachment to the anhydroglucose group and which is chosen from -(A)P-CH2-CHOH-CH2- and -CH2CH2-,

[0095] - p denoting 0 or 1,

[0096] - A designating a divalent group -(CH2CH2 O)n-,

[0097] - n is an integer from 1 to 100; and

[0098] - Xi represents an anion.

[0099] Preferably, the substituent (i) of formula [R4R5R6R9N+](X2 ) is present on average from 0.0003 to 0.08 mol, per mol of anhydroglucose motifs.

[0100] The cationic cellulose ethers that can be used in the compositions according to the present invention are preferably hydroxyethyl celluloses or hydroxypropyl celluloses. The cationic cellulose ethers that can be used in the compositions according to the present invention preferably comprise more than 4500, advantageously more than 5000, and more preferably more than 6000 anhydroglucose units.

[0101] Preferably, the cationic cellulose ethers that can be used in the compositions according to the present invention comprise up to 9000, and more preferably up to 8000 anhydroglucose motifs.

[0102] These cationic cellulose ethers and their preparation process are described in application WO 2005 / 000903.

[0103] According to a preferred embodiment, the cationic cellulose ethers that can be used in the compositions according to the present invention are formed of at least one motif (IV) and at least one of the following motifs (I), (II) and (III): O(CHaO H2O) nH (CHgCHgO^H ^O(CH / ÎH2O)n -CHpH—N— (CHgCHgO^H

[0104] X2

[0105] provided that:

[0106] - the total number of motifs (I)+(II)+(III)+(IV) is between 4000 and 10,000;

[0107] - the ratio [(III)+(IV)] / [(I)+(II)+(III)+(IV)] ranges from 0.0003 to 0.8;

[0108] - the ratio [(II)+(IV)] / [(I)+(II)+(III)+(IV)] goes from 0.02 to 0.9;

[0109] - the integers n and n', independently of each other, go from 0 to 5;

[0110] - Ri, R2, R3, R4 and R5 represent, independently of each other, a group methyl or ethyl;

[0111] - R6 represents a linear or branched C8-C24 alkyl group, preferably C10-C 24, more preferably in C12-C24 and even better in C12-C15, or an aralkyl group in which the linear or branched alkyl part is in C8-C24;

[0112] - Xi and X2 represent preferred anions chosen independently of each other the other, among the phosphate, nitrate, sulfate and halide ions (Cl, Br, F, I).

[0113] According to a particular embodiment, the cationic cellulose ethers that can be used in the compositions according to the present invention are formed of at least one motif (IV) and at least one of the motifs (I), (II) or (III) above, wherein R6 is a linear dodecyl group.

[0114] Among the cationic cellulose ethers that can be used in the compositions of the present invention, mention may be made of the Softcat SL-5, SL-30, SL-60 and SL-100 type polymers (INCI: Polyquaternium-67) sold by the company Amerchol. The cationic cellulose ethers of particular preference are the SL-60 and SL-100 type polymers. 1. Cationic cellulose derivatives such as cellulosic copolymers and cellulose derivatives grafted with a water-soluble quaternary ammonium monomer and described, for example, in US patent no. 4,131,576, such as hydroxyalkylcelluloses, for example, hydroxymethyl-, hydroxyethyl- and hydroxypropylcelluloses grafted, for example, with a salt selected from the salts of methacryloylethyltrimethylammonium, methacrylamidopropyltrimethylammonium and dimethyldiallylammonium.

[0115] Commercial products corresponding to these polymers include, for example, products sold under the names "Celquat® L 200" and "Celquat® H 100" by the company National Starch. 1. Non-cellulosic cationic polysaccharides described in US patents Nos. 3,589,578 and 4,031,307, such as guar gums comprising cationic trialkylammonium groups, cationic hyaluronic acid, and dextran hydroxypropyltrimonium chloride. Guar gums modified with a salt, for example, 2,3-epoxypropyltrimethyalammonium chloride (hydroxypropyltrimonium guar chloride), may also be used.

[0116] These products are sold, for example, under the trade names JAGUAR® C13 S, JAGUAR® C15, JAGUAR® C17 and JAGUAR® C162 by the company MEYHALL. 1. Polymers comprising piperazinyl units and divalent alkylene or hydroxyalkylene groups comprising straight or branched chains, optionally interrupted with at least one entity selected from oxygen, sulfur, nitrogen, aromatic rings, and heterocyclic rings, as well as the oxidation and / or quaternization products of these polymers. These polymers are described, for example, in French patents Nos. 2,162,025 and 2,280,361. 2. Water-soluble polyaminoamides prepared, for example, by polycondensation of an acidic compound with a polyamine; these polyaminoamides optionally being crosslinked with an entity selected from among the following: epihalohydrins; diepoxides; dianhydrides; unsaturated dianhydrides; bisunsaturated derivatives; bishalohydrins; bisazetidiniums; bishalocyanadiamines; halides of bisalkyl; oligomers resulting from the reaction of a difunctional compound that is reactive with an entity selected from the bishalogenohydrins; bisazetidiniums, bishalogenocyldiamines, bisalkyl halides; epihalogenohydrins; diepoxides and bisunsaturated derivatives; The crosslinking agent is used in an amount ranging from 0.025 to 0.35 moles per amine group of the polyamino amide; these polyamino amides are optionally alkylated or, if they include at least one tertiary amine function, they can be quaternized. These polymers are described, for example, in French patents Nos. 2,252,840 and 2,368,508. 3. Polyaminoamide derivatives resulting from the condensation of polyalkylene polyamines with polycarboxylic acids, followed by alkylation with difunctional agents, for example, adipic acid / dialkylaminohydroxyalkyldialkylenetriamine polymers in which the alkyl group comprises 1 to 4 carbon atoms, such as methyl, ethyl, and propyl groups, and the alkylene group comprises 1 to 4 carbon atoms, such as an ethylene group. These polymers are described, for example, in French patent no. 1,583,363. In at least one embodiment, these derivatives may be selected from adipic acid / dimethylaminohydroxypropyldiethylenetriamine polymers. 4. Polymers obtained by reacting a polyalkylene polyamine comprising two primary amine groups and at least one secondary amine group with a dicarboxylic acid selected from diglycolic acid and saturated aliphatic dicarboxylic acids comprising 3 to 8 carbon atoms. The molar ratio of the polyalkylene polyamine to the dicarboxylic acid may range from 0.8:1 to 1.4:1; the resulting polyaminoamide being reacted with epichlorohydrin in a molar ratio of epichlorohydrin to the secondary amine group of the polyaminoamide ranging from 0.5:1 to 1.8:1. These polymers are described, for example, in US patents Nos. 3,227,615 and 2,961,347. 5. Alkyldiallylamine cyclopolymers and dialkyldiallyl-ammonium cyclopolymers, such as homopolymers and copolymers comprising, as the principal chain constituent, at least one motif from among the motifs of formulas (la) and (1b):

[0117] wherein:

[0118] - k and t, which may be identical or different, are equal to 0 or 1, the sum k+t being equal to 1;

[0119] - Rn is chosen from hydrogen and methyl groups;

[0120] - Rio and Rn, which may be identical or different, are chosen from groups alkyl comprising from 1 to 6 carbon atoms, hydroxyalkyl groups in which the alkyl group comprises, for example, from 1 to 5 carbon atoms and lower (Ci-C4)alkylamido groups, or Rio and Ru can form, with the nitrogen atom to which they are attached, heterocyclic groups such as piperidinyl and morpholinyl; and

[0121] - Y' is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate and phosphate. These polymers are described, for example, in French patent no. 2 080 759 and in its certificate of addition 2 190 406.

[0122] In one embodiment, R10 and Ru, which may be identical or different, are chosen from alkyl groups comprising 1 to 4 carbon atoms.

[0123] Examples of these polymers include, but are not limited to, diallyldialkyl ammonium (co)chloride such as dimethylidiethylammonium chloride homopolymer sold under the name "MERQUAT® 100" by CALGON (and its low weight average molecular weight counterparts) and diallyldimethylammonium chloride and acrylamide copolymers sold under the name "MERQUAT® 550".

[0124] Quaternary diammonium polymers comprising at least one repeating unit of formula (II):

[0125] in which:

[0126] - Rn, Ru, Rb and R[6, which may be identical or different, are chosen from aliphatic, alicyclic and arylaliphatic groups comprising from 1 to 20 carbon atoms and lower hydroxyalkyl aliphatic groups, or alternatively Rn, R[4, Ris and Ri6, can form, together or separately, with the nitrogen atoms to which they are attached, heterocycles optionally comprising a second heteroatom other than nitrogen, or alternatively Rn, RM, R[5 and R[6 which may be identical or different, are selected from linear or branched Ci-C6 alkyl groups substituted by at least one group selected from nitrile groups, ester groups, acyl groups, amide groups, -CO-O-Rp-E groups and -CO-NH-Rp-E groups, where Rn is an alkylene group and E is a quaternary ammonium group;

[0127] - Ai and Bi, which may be identical or different, are chosen from groups Polymethylene comprising from 2 to 20 carbon atoms, which can be linear or branched, saturated or unsaturated, and which may include, linked or intercalated in the main chain, at least one entity selected from aromatic rings, oxygen, sulfur, sulfoxide groups, sulfone groups, disulfide groups, amino groups, alkylamino groups, hydroxyl groups, quaternary ammonium groups, ureido groups, amide groups and ester groups, and

[0128] - X is an anion derived from an inorganic or organic acid;

[0129] - Ai, R13 and Rn can form, together with the two nitrogen atoms to which they are attached, a piperazine cycle;

[0130] If Ai is chosen from linear or branched, saturated or unsaturated alkylene or hydroxyalkylene groups, Bi can be chosen from:

[0131] -(CH2)n-CO-E'-OC-(CH2)n-

[0132] in which E' is chosen from: a. glycol residues of formula -OZO-, in which Z is selected from linear or branched hydrocarbon-based groups and groups of the following formulas:

[0133] -(CH2-CH2-O)X-CH2-CH2-

[0134] -[CH2-CH(CH3)-O]y-CH2-CH(CH3)-

[0135] in which x and y, which may be identical or different, are chosen from integers from 1 to 4, which represent a defined and unique degree of polymerization, and numbers from 1 to 4, which represent an average degree of polymerization;

[0136] b) a bis-secondary diamine residue such as piperazine derivatives;

[0137] c) bis-primary diamine residues of formula -NH-Y-NH-, wherein Y is selected from linear or branched hydrocarbon-based groups and the divalent group -CH2-CH2-SS-CH2-CH2-; and

[0138] d) ureylene groups of formula -NH-CO-NH-.

[0139] In at least one embodiment, X is an anion such as chloride or bromide.

[0140] Polymers of this type are described, for example, in French patents Nos. 2,320,330; 2,270,846; 2,316,271; 2,336,434; and 2,413,907 and in US patents Nos. 2,273,780; 2,375,853; 2,388,614; 2,454,547; 3,206,462; 2,261,002; 2,271,378; 3,874,870; 4,001,432; 3,929,990; 3,966,904; 4,005,193; 4,025,617; 4,025,627; 4,025,653; 4,026,945 and 4,027,020.

[0141] Non-limiting examples of these polymers include those comprising at least one repeating motif of formula (III): (HD s

[0142] wherein Rn, RM, R[5 and R[6, which may be identical or different, are selected from alkyl and hydroxyalkyl groups comprising from 1 to 4 carbon atoms, n and p, which may be identical or different, are integers from 2 to 20, and X is an anion derived from an inorganic or organic acid. 1. Polyquaterary ammonium polymers comprising motifs of formula (IV):

[0143] wherein:

[0144] - Ri8, R19, R20 and R2B, which may be identical or different, are chosen from hydrogen, methyl groups, ethyl groups, propyl groups, 3-hydroxyethyl groups, 3-hydroxypropyl groups, -CH2CH2(OCH2CH2)POH groups, where p is chosen from integers from 0 to 6, provided that R[8, Ri9, R20 and R2[ are not simultaneously hydrogen,

[0145] - r and s, which may be identical or different, are chosen from numbers integers ranging from 1 to 6,

[0146] - q is chosen from integers ranging from 0 to 34,

[0147] - X is an anion, such as a halide, and

[0148] - A is chosen from dihalide radicals and -CH2-CH2-O-CH2-CH2-.

[0149] These compounds are described, for example, in European patent application no. 0 122 324. 1. Quaternary polymers of vinylpyrrolidone and vinylimidazole.

[0150] Other examples of suitable cationic polymers include, but are not limited to, cationic proteins and cationic protein hydrolysates, polyalkyleneimines, such as polyethyleneimines, polymers comprising motifs selected from vinylpyridine and vinylpyridinium motifs, polyamine and epichlorohydrin condensates, quaternary polyureylenes and chitin derivatives.

[0151] According to one embodiment of the present invention, at least one cationic polymer is selected from cellulose ether derivatives comprising quaternary ammonium groups, such as the products sold under the name "JR 400" by UNION CARBIDE CORPORATION, cationic cyclopolymers, for example, dimethyldiallylammonium chloride homopolymers and copolymers sold under the names MERQUAT® 100, MERQUAT® 550, and MERQUAT® S by the company CALGON, modified guar gums with a salt of 2,3-epoxypropyltrimethylammonium and the quaternary polymers of vinylpyrrolidone and vinylimidazole. 1. Polyamines

[0152] As a cationic polymer, it is also possible to use (co)polyamines, which can be homopolymers or copolymers, with a plurality of amino groups. The amino group can be a primary, secondary, tertiary, or quaternary amino group. The amino group can be present in a polymer backbone or as a pendant group, as appropriate, of the (co)polyamines.

[0153] Examples of (co)polyamines include chitosan, (co)polylamines, (co)polyvinylamines, (co)polyanilines, (co)polyvinylimidazoles, (co)polydimethylaminoethylene methacrylates, (co)polyvinylpyridines such as (co)poly-l-methyl-2-vinylpyridines, (co)polyimines such as (co)polyimines, (co)polypyridines such as (co)poly(quaternary pyridines), (co)polybiguanides such as (co)polyaminopropyl biguanides, (co)polylysines, (co)polyornithines, (co)polyarginines, (co)polyhistidines, aminodextrans, aminocelluloses, amino(co)polyvinylacetals, and their salts.

[0154] As (co)polyamines, it is preferable to use chitosan. Chitosan is well known. Chitosan can be a linear polysaccharide composed of D-glucosamine randomly linked to [3-(1->4)] (deacetylated motif) and N-acetyl-D-glucosamine (acetylated motif). The degree of acetylation of chitosan can be from 1.0% to 10.0%, preferably from 2.0% to 8.0%, and more preferably from 3.0% to 6.0%. Chitosan can be prepared, for example, by treating the chitin shells of shrimp and other crustaceans with an alkaline substance, such as sodium hydroxide. Thus, the cationic polymer can be polyamines of polysaccharides, preferably linear polysaccharides.

[0155] As with (co)polyamines, it is preferable to use (co)polylysines. Polylysine is well known. Polylysine can be a natural homopolymer of L-lysine that can be produced by bacterial fermentation. For example, polylysine can be e-Poly-L-lysine, typically used as a natural preservative in food products. Polylysine is a polyelectrolyte that is soluble in polar solvents such as water. Polylysine is commercially available in various forms, such as poly D-lysine and poly L-lysine. Polylysine can be in the form of a salt and / or a solution. 1. Cationic polyamino acids

[0156] As a cationic polymer, it may be possible to use cationic polyamino acids, which may be homopolymers or cationic copolymers, with a plurality of amino and carboxyl groups. The amino group may An amino group can be a primary, secondary, tertiary, or quaternary amino group. The amino group may be present in a polymer backbone or as a pendant group, as appropriate, of cationic polyamino acids. The carboxyl group may be present as a pendant group, as appropriate, of cationic polyamino acids.

[0157] Examples of cationic polyamino acids include cationized collagen, cationized gelatin, hydrolyzed wheat protein hydroxypropyl steardimonium, hydrolyzed wheat protein hydroxypropyl cocodimonium, hydrolyzed conchiolin protein hydroxypropyltrimonium, hydrolyzed soy protein hydroxypropyltrimonium steardimonium, hydrolyzed soy protein hydroxypropyltrimonium, hydrolyzed soy protein cocodimonium, and the like.

[0158] It may be preferable that the cationic polymer be selected from the group consisting of alkyldiallylamine cyclopolymers and dialkyldiallylammonium cyclopolymers such as diallyldialkyl ammonium (co)polychloride, (co)polyamines such as (co)polylysines, cationic (co)polyamino acids such as cationized collagen, and their salts.

[0159] The cationic polymer can be a polyquatemium polymer or a polymeric quaternary ammonium salt.

[0160] Polymeric quaternary ammonium salts are cationic polymers comprising at least one quaternized nitrogen atom. Polyquatemium products (CTFA name), which contribute primarily to foam quality and skin feel after use, are examples of polymeric quaternary ammonium salts. These polymers may preferably be selected from the following:

[0161] Polyquatemium-5, such as the Merquat 5 product sold by Nalco;

[0162] Polyquaterium-6, such as the product Salcare SC 30 sold by BASF and the product Merquat 100 sold by Nalco;

[0163] Polyquatemium-7, such as the products Merquat S, Merquat 2200, Merquat 7SPR, and Merquat 550 sold by Nalco and the product Salcare SC 10 sold by BASF;

[0164] Polyquatemium-10, such as the Polymer JR400 product sold by Amerchol;

[0165] Polyquatemium-11, such as the Gafquat 755, Gafquat 755N and Gafquat 734 products sold by ISP;

[0166] Polyquatemium-15, such as the Rohagit KF 720 F product sold by Rohm;

[0167] Polyquatemium-16, such as the Luviquat FC905, Luviquat FC370, Luviquat HM552 and Luviquat FC550 products sold by BASF;

[0168] Polyquatemium-28, such as the Styleze CC10 product sold by ISP;

[0169] Polyquatemium-44, such as the Luviquat Care product sold by BASF;

[0170] Polyquatemium-46, such as the Luviquat Hold product sold by BASF;

[0171] Polyquatemium-47, such as the product Merquat 2001 sold by Nalco; and

[0172] Polyquatemium-67, such as the Softcat product sold by Amerchol.

[0173] The (a) cationic polymer is preferably chosen from polyamines, more preferably chitosan, polylysine and a mixture thereof, and in particular chitosan.

[0174] The quantity of the (a) cationic polymer(s) in the composition according to the present invention may be 0.1% by weight or more, preferably 0.5% by weight or more, and, more preferably, 1% by weight or more.

[0175] The quantity of the (a) cationic polymer(s) in the composition according to the present invention may be 10% by weight or less, preferably 7.5% by weight or less, and more preferably 5% by weight or less, relative to the total weight of the composition.

[0176] The quantity of the (a) cationic polymer(s) in the composition according to the present invention can be from 0.1% to 10% by weight, preferably from 0.5% to 7.5% by weight, and more preferably from 1% to 5% by weight, relative to the total weight of the composition.

[0177] In the context of this patent memorandum, any combination of the above upper limit values ​​and lower limit values ​​may be available to represent the preferred range of quantity. (Fatty acid)

[0178] The composition according to the present invention comprises (b) at least one fatty acid. Two or more fatty acids may be used in combination. Thus, a single type of fatty acid or a combination of different types of fatty acids may be used.

[0179] The term "fatty acid" here refers to a carboxylic acid with a long aliphatic carbon chain.

[0180] The (b) fatty acid has at least 4 carbon atoms. Preferably, the (b) fatty acid has at least 8 carbon atoms, and more preferably at least 12 carbon atoms, and in particular at least 14 carbon atoms. The (b) fatty acid may comprise up to 24 carbon atoms, preferably up to 22 carbon atoms and, more preferably, up to 20 carbon atoms. Preferably, the (b) fatty acid is selected from a C8-C24 fatty acid, more preferably a C12-C22 fatty acid, and even more preferably a C14-C20 fatty acid.

[0181] The (b) fatty acid may be selected from saturated or unsaturated, linear or branched fatty acids. Thus, the (b) fatty acid may be selected from C8-C24 fatty acids, preferably C12-C22, more preferably C14-C20 saturated and unsaturated, linear or branched.

[0182] As unsaturated fatty acids, linear or branched, monounsaturated fatty acids, linear or branched, or polyunsaturated fatty acids, linear or branched, may to be used. As an unsaturated fraction of unsaturated fatty acids, linear or branched, a carbon-carbon double bond or a carbon-carbon triple bond may be cited.

[0183] Examples of saturated fatty acids include linear or branched saturated fatty acids, for example caprylic acid (C8), pelargonic acid (C9), capric acid (Ci0), lauric acid (Ci2), myristic acid (Ci4), pentadecanoic acid (C15), palmitic acid (Ci6), isopalmitic acid (Ci6), heptadecanoic acid (Ci7), stearic acid (Ci8), isostearic acid (Ci8), nonadecanoic acid (Ci9), arachidic acid (C20), behenic acid (C22) and lignoceric acid (C24).

[0184] In a preferred embodiment, the saturated fatty acid is selected from branched saturated fatty acids, such as isopalmitic acid (Ci6), isostearic acid (Ci8), and mixtures thereof.

[0185] Examples of unsaturated fatty acids include linear unsaturated fatty acids, for example, myristoleic acid (CM), palmitoleic acid (Ci6), oleic acid (Ci8), linoleic acid (Ci8), linolenic acid (Ci8), elaidic acid (Ci8), arachidonic acid (C20), eicosenoic acid (C20), erucic acid (C22) and nervonic acid (C24).

[0186] In a preferred embodiment, the unsaturated fatty acid is selected from linear or branched monounsaturated fatty acids, preferably linear monounsaturated, for example myristoleic acid (CM), palmitoleic acid (Ci6), and oleic acid (C[8], and mixtures thereof.

[0187] Preferably the (b) fatty acid should be selected from C8-C24 fatty acids, preferably C12-C22, saturated or unsaturated, linear or branched, and more preferably from the group consisting of myristic acid, palmitic acid, isopalmitic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, arachidic acid, arachidonic acid, eicosenoic acid, behenic acid, and mixtures thereof.

[0188] In another preferred embodiment, the (b) fatty acid is selected from Ci4-C22 saturated branched fatty acids and Ci4-C22 linear monounsaturated fatty acids, such as isopalmitic acid (Ci6), isostearic acid (Ci8), myristoleic acid (CM), palmitoleic acid (Ci6), and oleic acid (Ci8), and mixtures thereof.

[0189] (b) fatty acid may be in the form of a free acid or a salt thereof. Examples of salts of the fatty acid include inorganic salts such as an alkali metal salt (a sodium salt, a potassium salt, or the like) and an alkaline earth metal salt (a magnesium salt, a calcium salt, or the like); and organic salts such as an ammonium salt (a quaternary ammonium salt or the like). and an amine salt (a triethanolamine salt, a triethylamine salt, or similar). Only one type of fatty acid salt or a combination of different types of fatty acid salts may be used. In addition, a combination of one or more fatty acids in free acid form and one or more fatty acids in salt form may be used, in which one or more types of salts may also be used.

[0190] The amount of (b) fatty acid(s) in the composition may be 1% by weight or less, preferably 1% by weight or more, and more preferably 3% by weight or more, relative to the total weight of the composition.

[0191] The quantity of (b) fatty acid(s) in the composition according to the present invention may be 15% by weight or less, preferably 10% by weight or less, and more preferably 7.5% by weight or less, relative to the total weight of the composition.

[0192] The composition according to the present invention may contain the (b) fatty acid(s) in an amount of 1% to 15% by weight, preferably 2% to 10% by weight, and more preferably 3% to 7.5% by weight, relative to the total weight of the composition.

[0193] Although it is not intended to be a theory, it is thought that the (a) cationic polymer(s) and the (b) fatty acid(s) can form a complex by ionic bond between positively charged functional groups from the (a) cationic polymer(s), such as amino groups, and -COO group(s) from the (b) fatty acid(s). It is thought that the complex can exist at the interface between the aqueous and oily phases, and thus, the present invention can provide a stable emulsion structure without including any surfactant. (Oil-soluble organic UV filter)

[0194] The composition according to the present invention comprises (c) at least one oil-soluble organic UV filter. Two or more oil-soluble inorganic UV filters may be used in combination. Thus, a single type of oil-soluble organic UV filter or a combination of different types of oil-soluble organic UV filters may be used.

[0195] The expression "oil-soluble" is interchangeable with "lipid-soluble" in this context. The (c) oil-soluble organic UV filter(s) may be present in the oil phase in the composition according to the present invention.

[0196] The expression "oil-soluble UV filter" here refers to UV filters that are soluble in oils at a concentration of at least 1% by weight, for example 5% or 10% by weight, relative to the total weight of the oils at room temperature (25°C) and atmospheric pressure (105 Pa).

[0197] The term “UV” here includes the UV-B region (260–320 nm wavelength), the UV-A region (320–400 nm wavelength), and the high-energy visible light region (400–450 nm wavelength). Therefore, a UV filter refers to any material that has filtering effects in the UV wavelength range, particularly the UV-A, UV-B, and high-energy visible light regions.

[0198] The UV filter(s) used for the present invention can be active in the UV-A and / or UV-B region, preferably in each of the UV-A and UV-B regions alone or in combination. Therefore, the UV filter(s) used in the present invention include a UV-A filter capable of absorbing UV radiation from 320 to 400 nm, a UV-B filter capable of absorbing UV radiation from 280 to 320 nm, and a UV-A and UV-B filter capable of absorbing UV radiation from 280 to 400 nm.

[0199] The (c) oil-soluble organic UV filter may be solid or liquid. The terms "solid" and "liquid" mean solid and liquid, at room temperature (25 °C) and atmospheric pressure (105 Pa). Preferably, the (c) oil-soluble organic UV filter is solid at room temperature (25 °C) and atmospheric pressure (105 Pa).

[0200] The oil-soluble organic UV-A filters used in the present invention may include, but are not limited to, aminobenzophenone compounds, dibenzoylmethane compounds, anthranilic acid compounds and 4,4-diarylbutadiene compounds.

[0201] Examples of aminobenzophenone compounds include n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, a variant of which is hexyl diethylamino hydroxybenzoyl benzoate (DHHB), sold under the trade name "Uvinul A+" by BASF.

[0202] Examples of dibenzoylmethane compounds include 4-isopropyldibenzoylmethane, sold under the name "Eusolex 8020" by Merck, l-(4-methoxy-l-benzofuran-5-yl)-3-phenylpropane-l,3-dione, sold under the name "Pongamol" by Quest, l-(4-(tert-butyl)phenyl)-3-(2-hydroxyphenyl)propane-l,3-dione, and butyl methoxydibenzoylmethane, sold under the trade name "Parsol 1789" by Hoffmann-La Roche.

[0203] As examples of anthranilic acid compounds, one can cite menthyl anthranilate marketed under the name "NEO HELIPAN MA" by Symrise.

[0204] Examples of 4,4-diarylbutadiene compounds include 1,1-dicarboxy (2,2'-dimethylpropyl)-4,4-diphenylbutadiene and diphenylbutadiene malonates and malononitriles.

[0205] The oil-soluble organic UV-B filters used in the present invention may include, but are not limited to, triazine compounds, para-aminobenzoic acid compounds, salicylic compounds, cinnamate compounds, compounds [3,[3-diphenylacrylate, benzylidenecamphor compounds, phenylbenzimidazole compounds, imidazoline compounds, benzalmalonate compounds and merocyanine compounds.

[0206] Examples of triazine compounds include ethylhexyl triazone, marketed under the name "UVINUL T-150" by BASF, diethylhexyl butamido triazone, marketed under the name "UVASORB HEB" by SIGMA 2V, 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, 2,4,6-tris(diisobutyl 4'-aminobenzalmalonate)-s-triazine, 2,4-bis(dineopentyl 4'-aminobenzalmalonate)-6-(n-butyl 4'-aminobenzoate)-s-triazine, and 2,4-bis(n-butyl 4'-aminobenzoate-6-(aminopropyltrisiloxane)-s-triazine.

[0207] Examples of para-aminobenzoic acid derivatives include para-aminobenzoates (PABA), for example, ethyl PABA (para-aminobenzoate), ethyl dihydroxypropyl PABA and ethylhexyl dimethyl PABA, marketed under the name "ESCALOL 5972" by ISP.

[0208] Examples of salicylic compounds include homosalate, marketed under the name "Eusolex HMS" by Rona / EM Industries, and ethylhexyl salicylate, marketed under the name "NEO HELIOPAN OS" by Symrise.

[0209] Examples of cinnamate compounds include ethylhexyl methoxycinnamate, marketed as "PARSOL CX" by DSM NUTRITIONAL PRODUCTS, isopropyl ethoxy cinnamate, isoamyl methoxy cinnamate, marketed as "NEO HELIOPAN E 1000" by Symrise, diisopropyl methylcinnamate, glyceryl cinoxate and ethylhexanoate dimethoxycinnamate.

[0210] Examples of [3,[3-diphenylacrylate] compounds include octocrylene, marketed under the name "UVINUL N539" by BASF, and etocrylene, marketed under the name "UVINUL N35" by BASF.

[0211] Examples of benzylidenecamphor compounds include 3-benzylidene camphor, marketed as "MEXORYL SD" by CHIMEX, methylbenzylidene camphor, marketed as "EUSOLEX 6300" by MERCK, polyacrylamidomethyl benzylidene camphor, marketed as "MEXORYL SW" by CHIMEX, and terephthalylidene diamphr sulfonic acid, marketed as "Mexoryl SX" by Chimex.

[0212] Examples of phenylbenzimidazole compounds include phenylbenzimidazole sulfonic acid, marketed under the name "Eusolex 232" by Merck, and disodium phenyl dibenzimidazole tetrasulfonate, marketed under the name "Neo Heliopan AP" by Haarmann and Reimer.

[0213] Examples of imidazoline compounds include ethylhexyl dimethoxybenzylidene propionate dioxoimidazoline.

[0214] Examples of benzalmalonate compounds include a polyorganosiloxane containing a benzalmalonate fraction, for example, Polysilicone-15, marketed under the name "Parsol SLX" by DSM NUTRITIONAL PRODUCTS, and dineopentyl 4'-methoxybenzalmalonate.

[0215] The oil-soluble organic UV filters of the present invention may include oil-soluble organic UV-A and UV-B filters, which cover the UV-A and UV-B regions. The following are non-limiting examples of oil-soluble organic UV-A and UV-B filters:

[0216] - benzophenone compounds, such as benzophenone-1 marketed under the name “UVINUL 400” by BASF, benzophenone-2 marketed under the name “UVINUL 500” by BASF, benzophenone-3 or oxybenzone marketed under the name “UVINUL M40” by BASF, benzophenone-6 marketed under the name “Helisorb 11” by Norquay, benzophenone-8 marketed under the name “Spectra-Sorb UV-24” by American Cyanamid, benzophenone-10, benzophenone-11, and benzophenone-12;

[0217] - benzotriazole compounds such as drometrizole trisiloxane marketed under the name "Silatrizole" by Rhodia Chimie, bumetrizole marketed under the name "TINOGUARTD AS" by CIBA-GEIGY and the phenylbenzotriazole derivatives: 2-(2H-benzotriazole-2-yl)-6-dodecyl-4-methylpheno, branched and linear;

[0218] - bis-resorcinyl triazine compounds, such as bis-ethylhexyloxyphenol methoxyphenyl triazine marketed under the name "TINOSORB S" by CIBA-GEIGY; and

[0219] - benzoxazole compounds, such as 2,4-bis[5-l(dimethylpropyl)benzoxazol-2- yl-(4-phenyl)imino]-6-(2-ethylhexyl)imino-l,3,5-triazine, marketed under the name "Uvasorb K2A" by Sigma 3V.

[0220] Preferably, the oil-soluble organic UV filter can be selected from aminobenzophenone compounds, such as hexyl diethylamino hydroxybenzoyl benzoate (DHHB), dibenzoylmethane compounds, such as butyl methoxydibenzoylmethane, triazine compounds, such as ethylhexyl triazone, salicylic compounds, such as homosalate, [3,[3-diphenylacrylate] compounds, such as octocrylene, and benzotriazole compounds, such as drometrizole trisiloxane, and mixtures thereof.

[0221] In one embodiment of the present invention, the oil-soluble organic UV filter of the present invention comprises a combination of at least one oil-soluble organic UV-A filter and at least one oil-soluble organic UV-B filter.

[0222] Thus, in another embodiment of the present invention, the oil-soluble organic UV filter comprises at least one organic UV-A filter oil-soluble selected from aminobenzophenone compounds and dibenzoylmethane compounds, and at least one oil-soluble organic UV-B filter selected from triazine compounds, salicylic compounds, (3,(3-diphenylacrylate) compounds and benzotriazole compounds.

[0223] Alternatively, in a preferred embodiment of the present invention, the oil-soluble organic UV filter of the present invention comprises at least one oil-soluble organic UV-A and UV-B filter.

[0224] Thus, in another preferred embodiment of the present invention, the oil-soluble organic UV filter comprises at least one oil-soluble organic filter selected from benzophenone compounds, benzotriazole compounds, bis-resorcinyl triazine compounds and benzoxazole compounds.

[0225] In yet another preferred embodiment of the present invention, the oil-soluble organic UV filter comprises at least one bis-resorcinyl triazine compound, in particular bis-ethylhexyloxyphenol methoxyphenyl triazine.

[0226] The quantity of the (c) oil-soluble organic UV filter(s) in the composition according to the present invention may be 0.5% by weight or more, preferably 1% by weight or more, and more preferably 2% by weight or less, relative to the total weight of the composition.

[0227] The quantity of the (c) oil-soluble organic UV filter(s) in the composition according to the present invention may be less than or equal to 10% by weight, preferably less than or equal to 7.5% by weight, and more preferably less than or equal to 5% by weight, relative to the total weight of the composition.

[0228] The quantity of the (c) oil-soluble organic UV filter(s) in the composition according to the present invention can range from 0.5% to 10% by weight, preferably from 1% to 7.5% by weight, and more preferably from 2% to 5% by weight, relative to the total weight of the composition. (Oil)

[0229] The composition according to the present invention comprises (d) at least one oil. If two (d) or more oils are used, they may be identical or different.

[0230] The (d) oil(s) may constitute the oily phase (a) in the composition according to the present invention.

[0231] Here, "oil" may refer to a fatty compound or oily substance that is in the form of a liquid, a paste (not a solid), or a solid at room temperature (25 °C) under atmospheric pressure (760 mmHg). Oils commonly used in cosmetics may be used alone or in combination. These oils may be volatile or non-volatile.

[0232] Preferably, the (d) oil is in the form of a liquid or a paste (not solid) at room temperature (25 °C) under atmospheric pressure (760 mmHg).

[0233] The (d) oil may be a non-polar oil such as a hydrocarbon oil, a silicone oil or the like; a polar oil such as a vegetable or animal oil and an ester oil or an ether oil; or a mixture thereof.

[0234] The (d) oil may be selected from the group consisting of oils of vegetable or animal origin, synthetic oils, silicone oils, hydrocarbon oils and fatty alcohols.

[0235] Examples of vegetable oils include, for example, apricot oil, 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.

[0236] Examples of animal oils include, for example, squalene and squalane.

[0237] Examples of synthetic oils include alkane oils such as isododecane and isohexadecane, ester oils, ether oils and artificial triglycerides.

[0238] The ester oils are preferably liquid esters of saturated or unsaturated, linear or branched, Ci-C26 aliphatic monoacids or polyacids, and of saturated or unsaturated, linear or branched, Ci-C26 aliphatic monoalcohols or polyalcohols, the total number of carbon atoms of the esters being greater than or equal to 10.

[0239] Preferably, for monoalcohol esters, at least one of the alcohol and acid from which the esters of the present invention are derived is branched.

[0240] Among the monoesters of monoacids and monoalcohols, ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate and isostearyl neopentanoate may be mentioned.

[0241] Esters of C4-C22 dicarboxylic or tricarboxylic acids and Ci-C22 alcohols, and esters of non-sugar C4-C26 monocarboxylic, dicarboxylic or tricarboxylic acids and dihydroxy, trihydroxy, tetrahydroxy or pentahydroxy alcohols, may also be used.

[0242] Examples include: 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; trilactate glyceryl; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate; neopentyl glycol diheptanoate; diethylene glycol diisononanoate.

[0243] As ester oils, sugar esters and fatty acid diesters of C6-C30 and, preferably, C2-C22, may be used. It is recalled that the term "sugar" refers to oxygen-bearing hydrocarbon compounds containing several alcohol functional groups, with or without aldehyde or ketone functional groups, and comprising at least four carbon atoms. These sugars may be monosaccharides, oligosaccharides, or polysaccharides.

[0244] Examples of suitable sugars that may be cited include sucrose, glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose and derivatives thereof, including alkyl derivatives, such as methyl derivatives, for example methylglucose.

[0245] Sugar esters of fatty acids may be selected in particular from the group comprising the esters or mixtures of esters of sugars described above and of fatty acids in C6-C30, and preferably in C12-C22, linear or branched, saturated or unsaturated. If unsaturated, these compounds may have one to three conjugated or non-conjugated carbon-carbon double bonds.

[0246] The esters according to this variant can also be chosen from monoesters, diesters, triesters, tetraesters, polyesters, and mixtures thereof.

[0247] These esters may be, for example, oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates and arachidonates, or mixtures thereof such as, in particular, mixed esters of oleopalmitate, oleostearate and palmitostearate, as well as pentaerythrityl tetraethyl hexanoate.

[0248] Monoesters and diesters are used in particular, and in particular monooleates or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenates and oleostearates of sucrose, glucose or methylglucose.

[0249] An example that can be cited is the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.

[0250] By way of examples of preferred ester oils, the following may be cited, for example: diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyle propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl caprylate / caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, stearate isocetyl, isopropyl isostearate, isopropyl myristate, isodecyl oleate, tri(2- glyceryl ethylhexanoate, pentaerythrityl tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

[0251] Examples of artificial triglycerides include, for example, capryl caprylyl glycerides, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, glyceryl tri(caprate / caprylate) and glyceryl tri(caprate / caprylate / linolenate).

[0252] Examples of silicone oils include linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenopolysiloxane and the like; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and the like; and mixtures thereof.

[0253] Preferably, the silicone oil is selected from liquid polydialkylsiloxanes, in particular liquid polydimethylsiloxanes (PDMS) and liquid polyorganosiloxanes comprising at least one aryl group.

[0254] These silicone oils can also be organo-modified. The organo-modified silicones that can be used according to the present invention are silicone oils as defined above, and comprise in their structure one or more organofunctional groups attached via a hydrocarbon-based group.

[0255] Organopolysiloxanes are defined in more detail in Walter Noll's Chemistry and Technology of Silicones (1968), Academy Press. They can be volatile or non-volatile.

[0256] When volatile, silicones are particularly chosen from those having a boiling point between 60 °C and 260 °C, and more particularly from: i. Cyclic polydialkylsiloxanes comprising 3 to 7, and preferably 4 to 5, silicon atoms. Examples include octamethylcyclotetrasiloxane, sold in particular under the name Volatile Silicone® 7207 by Union Carbide or Silbione® 70045 V2 by Rhodia; decamethylcyclopentasiloxane, sold under the name Volatile Silicone® 7158 by Union Carbide and Silbione® 70045 V5 by Rhodia; and dodecamethylcyclopentasiloxane, sold under the name Silsoft 1217 by Momentive Performance Materials, and mixtures thereof. Also noteworthy are dimethylsiloxane / methylalkylsiloxane cyclocopolymers, such as Silicone Volatile® FZ 3109, sold by Union Carbide, with the formula:

[0257] Other examples include mixtures of cyclic polydialkylsiloxanes with organosilicon compounds, such as the mixture of octamethylcyclotetrasiloxane and tetramethylsilylpentaerythritol (50 / 50) and the mixture of octamethylcyclotetrasiloxane and oxy-l,r-bis(2,2',2',2',3,3'-hexatrimethylsilyloxy)neopentane; and i. Linear volatile polydialkylsiloxanes containing 2 to 9 silicon atoms and having a viscosity less than or equal to 5 x 10⁶ m² / s at 25 °C. An example is decamethyltetrasiloxane, sold notably under the name SH 200 by Toray Silicone. Silicones belonging to this category are also described in the article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, pp. 27–32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of silicones is measured at 25 °C according to ASTM 445 Annex C.

[0258] Non-volatile polydialkylsiloxanes may also be used. These non-volatile silicones are particularly selected from among the polydialkylsiloxanes, among which the main examples are polydimethylsiloxanes containing trimethylsilyl terminal groups. Preferably, the polydialkylsiloxane is selected from liquid polydialkylsiloxanes, in particular liquid polydimethylsiloxanes (PDMS, dimethicone).

[0259] Among these polydialkylsiloxanes, the following commercial products may be cited, without limitation:

[0260] - Silbione® oils from ranges 47 and 70 047 or Mirasil® oils sold by Rhodia, for example oil 70 047 V 500 000;

[0261] - the oils from the Mirasil® range sold by the company Rhodia;

[0262] - oils from the 200 series of Dow Corning, such as DC200 with a viscosity of 60,000 mm² / s; and

[0263] - Viscasil® oils from General Electric and certain oils in the SF range (SF 96, SF 18) from General Electric.

[0264] We can also mention polydimethylsiloxanes containing dimethylsilanol terminal groups known as dimethiconol (CTFA), such as the oils in the 48 range from the Rhodia company.

[0265] Among silicones containing aryl groups, we can mention polydiarylsiloxanes, in particular polydiphenylsiloxanes and polyalkylarylsiloxanes such as phenyl silicone oil.

[0266] The phenyl silicone oil may be selected from the phenyl silicones of the following formula:

[0267] in which

[0268] - Ri in Rio are, independently of each other, radicals based of saturated or unsaturated, linear, cyclic or branched C1-C30 hydrocarbons, preferably C1-C12 hydrocarbon-based radicals, and more preferably C1-C6 hydrocarbon-based radicals, in particular methyl, ethyl, propyl or butyl radicals, and

[0269] - m, n, p and q are, independently of each other, integers from 0 to 900 inclusive, preferably from 0 to 500 inclusive, and even better, from 0 to 100 inclusive.

[0270] provided that the sum n+m+q is not 0.

[0271] Examples that may be cited include products sold under the names following:

[0272] - Silbione® oils from the 70 641 range by Rhodia;

[0273] - the oils from the Rhodorsil® 70 633 and 763 ranges from Rhodia;

[0274] - Dow Corning 556 Cosmetic Grade Fluid oil from Dow Corning;

[0275] - silicones from Bayer's PK range, such as product PK20;

[0276] - certain oils in the General Electric SF range, such as SF 1023, SF 1154, SF 1250 and SF 1265.

[0277] As a phenyl silicone oil, phenyl trimethicone (Ri to R10 are methyl; p, q and n = 0; m=l in the formula above) is preferable.

[0278] Organomodified liquid silicones may contain polyethyleneoxy and / or polypropyleneoxy groups. Examples include KF-6017 silicone offered by Shin-Etsu, and Silwet® L722 and L77 oils from Union Carbide.

[0279] Hydrocarbon oils may be selected from:

[0280] - lower C6-Ci6 alkanes, linear or branched, optionally cyclic. Examples that can be cited include hexane, undecane, dodecane, tridecane, and isoparaffins, for example isohexadecane, isododecane, and isodecane; and

[0281] - linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffins, liquid petroleum jelly, hydrogenated polydecenes and polyisobutenes such as Parleam and squalane.

[0282] Preferred examples of hydrocarbon oils include, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (e.g., liquid paraffin), paraffin, Vaseline or petrolatum, naphthalenes, and the like; hydrogenated polyisobutene, isoeicosane and decene / butene copolymer; and mixtures thereof.

[0283] The term "fatty" in fatty alcohol means the inclusion of a relatively large number of carbon atoms. Thus, alcohols that have 4 or more carbon atoms, preferably 6 or more, and more preferably 12 or more, are encompassed within the scope of fatty alcohols. Fatty alcohols can be saturated or unsaturated. Fatty alcohols can be linear or branched.

[0284] The fatty alcohol may have the structure R-OH in which R is selected from saturated and unsaturated, linear and branched radicals containing from 4 to 40 carbon atoms, preferably from 6 to 30 carbon atoms, and more preferably from 12 to 20 carbon atoms. In at least one embodiment, R may be selected from alkyl groups in the form C2-C2O and alkenyl groups in the form C2-C2O. R may or may not be substituted by at least one hydroxyl group.

[0285] Examples of fatty alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, oleyl alcohol, linoleyl alcohol, palmitoleyl alcohol, arachidonylic alcohol, erucyl alcohol, and mixtures thereof.

[0286] It is preferable that the fatty alcohol be a saturated fatty alcohol.

[0287] Thus, the fatty alcohol can be chosen from saturated or unsaturated, linear or branched C6-C3o alcohols, preferably from saturated, linear or branched C6-C3o alcohols, and more preferably from saturated, linear or branched Ci2-C2o alcohols.

[0288] The term "saturated fatty alcohol" here refers to an alcohol having a long saturated aliphatic carbon chain. Preferably, the saturated fatty alcohol should be chosen from any saturated C6-C30 fatty alcohols, linear or branched. Among saturated C6-C30 fatty alcohols, linear or branched, saturated C2-C20 fatty alcohols, linear or branched, may preferably be used. Any saturated C6-C20 fatty alcohols, linear or branched, may be used more preferably. Branched C6-C20 fatty alcohols may be used even more preferably.

[0289] Examples of saturated fatty alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof. In one embodiment, cetyl alcohol, stearyl alcohol, Octyldodecanol, hexyldecanol, or a mixture of these (e.g., cetearyl alcohol) as well as behenyl alcohol, can be used as saturated fatty alcohol.

[0290] According to at least one embodiment, the fatty alcohol used in the composition according to the present invention is preferably chosen from octyldodecanol, hexyldecanol, and mixtures thereof.

[0291] It is preferable that the (d) oil be chosen from among the ester oils.

[0292] In a preferred embodiment, the (d) oil is selected from monoester oils of monoacids and monoalcohols, such as ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, isostearyl neopentanoate, and combinations thereof.

[0293] The composition according to the present invention comprises the (d) oils in a relatively small quantity. More specifically, the quantity of the (d) oil(s) in the composition according to the present invention is 15% by weight or less relative to the total weight of the composition. Preferably, the quantity of the (d) oil(s) in the composition is 12.5% ​​by weight or less, preferably 10% by weight or less, relative to the total weight of the composition.

[0294] The quantity of the oil(s) in the composition according to the present invention may be 0.5% by weight or more, preferably 1% by weight or more, and more preferably 3% by weight or more, relative to the total weight of the composition.

[0295] The quantity of the oil(s) in the composition according to the present invention may range from 0.5% to 15% by weight, preferably from 1% to 12.5% ​​by weight, and more preferably from 3% to 10% by weight, relative to the total weight of the composition. (Other ingredients) •#Polyol

[0296] The composition according to the present invention may include at least one polyol as an optional ingredient. Two or more different types of polyols may be used in combination. Thus, a single type of polyol or a combination of different types of polyols may be used.

[0297] For the purposes of the present invention, the term "polyol" should be understood as designating any organic molecule comprising at least two free hydroxyl groups. The term "polyol" does not generally encompass a saccharide or one of its derivatives. A saccharide derivative includes a sugar alcohol obtained by reducing one or more carbonyl groups of a saccharide, as well as a saccharide or an alcohol of sugar in which the hydrogen atom or atoms in one or more of its hydroxy groups has been replaced by at least one substituent such as an alkyl group, a hydroxyalkyl group, an alkoxy group, an acyl group or a carbonyl group.

[0298] Preferably, a polyol according to the present invention is present in liquid form at room temperature.

[0299] A polyol suitable for the invention may be a saturated or unsaturated and linear, branched or cyclic alkyl-type compound bearing, on the alkyl chain, at least two -OH functional groups, in particular at least three -OH functional groups and more particularly at least four -OH functional groups.

[0300] Polyols which are advantageously suitable for the formulation of a composition according to the present invention are those comprising in particular from 2 to 32 carbon atoms, preferably from 3 to 16 carbon atoms.

[0301] The polyol may be a C2-Ci2 polyol, preferably a C2-C9 polyol, comprising at least 2 hydroxy groups and preferably 2 to 5 hydroxy groups.

[0302] Advantageously, the polyol can, for example, be selected from ethylene glycol, pentaerythritol, trimethylolpropane, butylene glycol, isoprene glycol, pentylene glycol, hexylene glycol, glycerol, polyglycerols, such as glycerol oligomers, for example diglycerol oligomers, polyethylene glycols and mixtures thereof.

[0303] The polyol may be selected from linear or branched polyols, preferably linear polyols having 2 to 5 carbon atoms; examples include:

[0304] - diols such as hexylene glycol, propylene glycol, pentylene glycol, isoprene glycol, caprylyl glycol, diethylene glycol, and butylene glycol; and

[0305] - triols, such as glycerol (glycerin),

[0306] and their mixtures.

[0307] According to a preferred embodiment of the invention, said polyol is selected from butylene glycol, pentylene glycol, isoprene glycol, glycerol, polyglycerols, polyethylene glycols and mixtures thereof.

[0308] According to a more preferred embodiment, said polyol is selected from butylene glycol, pentylene glycol, isoprene glycol, and mixtures thereof.

[0309] According to a specific mode, the composition of the invention may comprise at least propylene glycol.

[0310] According to another specific embodiment, the composition of the invention may include at least butylene glycol.

[0311] The amount of the polyol(s) in the composition according to the present invention may be 0.1% by weight or more, preferably 0.2% by weight or more, and, more preferably, 0.3% by weight or more, relative to the total weight of the composition.

[0312] The quantity of the polyol(s) in the composition according to the present invention may be 20% by weight or less, preferably 15% by weight or less, and more preferably 12% by weight or less, relative to the total weight of the composition.

[0313] The quantity of the polyol(s) in the composition according to the present invention can range from 0.1% to 20% by weight, preferably from 0.2% to 15% by weight, and more preferably from 0.3% to 12% by weight, relative to the total weight of the composition. •#Surfactant

[0314] The composition according to the present invention may include at least one surfactant as an optional ingredient. The surfactant may be selected from amphoteric, anionic, cationic or nonionic surfactants, used alone or in mixtures.

[0315] Preferably, the surfactant is chosen from among non-ionic surfactants. Thus, the composition according to the present invention may comprise at least one non-ionic surfactant.

[0316] Examples of nonionic surfactants usable in the compositions of the invention may include polyethoxylated fatty alcohols or polyglycerolated fatty alcohols, such as ethylene oxide adducts with lauryl alcohol, in particular those containing 9 to 50 oxyethylene motifs (Laureth-9 to Laureth-50, according to the INCI names), in particular Laureth-9; esters of polyols and a fatty acid having a saturated or unsaturated chain comprising, for example, 8 to 24 carbon atoms, and their oxyalkylated derivatives, i.e. comprising oxyethylene and / or oxypropylene motifs, such as esters of glycerol and a C8-C24 fatty acid, and their oxyalkylated derivatives, in particular polyoxyethylenated glyceryl stearate (mono-, di- and / or tristearate), for example PEG-20 glyceryl triisostearate;C8-C24 sugar and fatty acid esters and their oxyalkylated derivatives, such as polyethoxylated sorbitol esters of C8-C24 fatty acids, in particular Polysorbate 80, such as the product marketed under the name "TWEEN 80" by Croda; C8-C24 sugar and fatty alcohol ethers, such as caprylyl / capryl glucoside; polyoxyethylenated alkyl ethers; polyoxyethylenated alkyl oxypropylene ethers; fatty acid alkanol amides; alkyl amine oxides; alkyl polyglycosides and silicone surfactants, such as polydimethylsiloxane containing oxyethylene groups and / or oxypropylene groups, for example, PEG-10 dimethicone, bis-PEG / PPG-14 / 14 dimethicone, bis-PEG / PPG-20 / 20 dimethicone and PEG / PPG-20 / 6 dimethicone, and alkyl dimethicone; copolyols, in particular those having an alkyl radical of 10 to 22 carbon atoms and having 2 to 50 oxyethylene groups and 2 to 50 oxypropylene groups, such as cetyl dimethicone copolyol (INCI name: Cetyl PEG / PPG-10 / 1 Dimethicone), and lauryl dimethicone copolyol (INCI name: Lauryl PEG / PPG-18 / 18 Methicone); and a fatty acid polyglyceryl ester such as polyglyceryl-4 caprate, polyglyceryl-6 dicaprate, polyglyceryl-6 dicaprate, polyglyceryl-6 dioleate, polyglyceryl-6 caprylate, polyglyceryl-2 oleate and polyglyceryl-6 polyricinoleate; and mixtures thereof.

[0317] In addition, by way of non-ionic surfactants, alkyl polyglycosides, represented by the following general formula (1), may be mentioned:

[0318] RO-(G)X(1)

[0319] wherein R represents a branched and / or unsaturated alkyl radical comprising 14 to 24 carbon atoms, G represents a reduced sugar comprising 5 or 6 carbon atoms, and x denotes a value from 1 to 10, and preferably from 1 to 4, and G denotes in particular glucose, fructose, or galactose. Examples of alkyl polyglycosides of this type include alkyl polyglucosides (G = glucose in formula (I)), and in particular compounds of formula (I) in which R more particularly represents an oleyl radical (unsaturated Ci8 radical) or isostearyl radical (saturated Ci8 radical), G denotes glucose, and x is a value from 1 to 2, in particular isostearyl glycoside, oleyl glucoside, and mixtures thereof.This alkyl polyglucoside can be used in a mixture with a co-emulsifier, particularly a fatty alcohol, and especially one having the same fatty chain as the alkyl polyglucoside, i.e., comprising 14 to 24 carbon atoms and having a branched and / or unsaturated chain. For example, isostearyl alcohol when the alkyl polyglucoside is isostearyl glucoside, and oleyl alcohol when the alkyl polyglucoside is oleyl glucoside. Examples include the mixture of isostearyl glucoside and isostearyl alcohol, sold under the name Montanov WO 18 by Seppic, and also the mixture of octyldodecanol and octyldodecyl xyloside sold under the name Fludanov 20X by Seppic.

[0320] When the composition according to the present invention includes the surfactant(s), the quantity of the surfactant(s) may be greater than 0% by weight relative to the total weight of the composition.

[0321] The amount of the surfactant(s) (d) in the composition according to the present invention may be 1% by weight or less, preferably 0.5% by weight or less, and more preferably 0.1% by weight or less, relative to the total weight of the composition. In one embodiment of the present invention, the composition is free of any surfactant. •#Water

[0322] The composition according to the present invention may include water.

[0323] Water can form the aqueous phase(s) in the composition of the present invention.

[0324] The amount of water in the composition may be 40% by weight or more, preferably 50% by weight or more, and more preferably 60% by weight or more, relative to the total weight of the composition.

[0325] The amount of water in the composition may be 95% by weight or less, preferably 90% by weight or less, and more preferably 85% by weight or less, relative to the total weight of the composition.

[0326] The quantity of water can range from 40% to 95% by weight, preferably from 50% to 90% by weight, and more preferably from 60% to 85% by weight, relative to the total weight of the composition. •#Acidifying agents

[0327] The composition according to the present invention may include at least one acidifying agent as an optional ingredient. The acidifying agent may be selected from amphoteric, anionic, cationic or non-ionic surfactants, used alone or in mixtures.

[0328] Examples of acidifying agents include mineral or organic acids. Preferably, the acidifying agent is chosen from among organic acids.

[0329] Examples of mineral acids include hydrochloric acid, orthophosphoric acid and sulfuric acid.

[0330] Examples of organic acids include carboxylic acids, such as acetic acid, tartaric acid, citric acid, lactic acid and sulfonic acids.

[0331] The quantity of the acidifying agent(s) in the composition according to the present invention may be 0.1% by weight or more, preferably 0.25% by weight or more, and more preferably 0.5% by weight or more, relative to the total weight of the composition.

[0332] The quantity of the acidifying agent(s) in the composition according to the present invention may be less than or equal to 5% by weight, preferably less than or equal to 3% by weight, and, more preferably less than or equal to 2% by weight, relative to the total weight of the composition.

[0333] The quantity of the acidifying agent(s) in the composition according to the present invention may be from 0.1% to 5% by weight, preferably from 0.25% to 3% by weight, and more preferably from 0.5% to 2% by weight, relative to the total weight of the composition. •#Adjuvants

[0334] The compositions according to the present invention may also contain various adjuvants conventionally used in compositions for sun care products, which may be chosen from a physiologically and / or cosmetically acceptable organic solvent, anionic, non-ionic, amphoteric or zwitterionic polymers or mixtures thereof, antioxidants, neutralizing agents, alkaline agents, sequestering agents, buffers, perfumes, emollients, dispersing agents, dyes and / or pigments, film-forming agents, thickeners, ceramides, preservatives, co-preservatives and opacifying agents.

[0335] The adjuvants may be present in the composition of the present invention in an amount ranging preferably from 0.01% to 30% by weight, more preferably from 0.1% to 20% by weight, and even more preferably from 0.5% to 10% by weight, relative to the total weight of the composition.

[0336] The composition according to the present invention can be intended for use as a topical cosmetic composition. Thus, the composition according to the present invention can be intended for application to keratinous material. Keratinous material here means material containing keratin as its principal constituent, and examples thereof include skin, scalp, nails, lips, hair, and the like. In particular, the composition according to the present invention can be a cosmetic skin-skin care composition for protecting the skin against UV rays.

[0337] According to a preferred embodiment, the composition according to the invention comprises, relative to the total weight of the composition: a. from 0.1% to 10% by weight of (a) at least one cationic polymer selected from polyamines; b. 1% to 15% by weight of (b) at least one fatty acid selected from C8-C24 fatty acids, preferably C12-C22 saturated or unsaturated, linear or branched; c. 0.5% to 10% of (c) at least one oil-soluble organic UV filter selected from oil-soluble organic UV-A and UV-B filters, such as benzophenone compounds, benzotriazole compounds, bis-resorcinyl triazine compounds, and benzoxazole compounds; and d. from 0.5% to 15% by weight of (d) at least one oil chosen from among the ester oils.

[0338] According to a preferred embodiment, the composition according to the invention comprises, relative to the total weight of the composition: a. 1% to 5% by weight of (a) at least one cationic polymer selected from chitosan, polylysine and a mixture thereof, in particular chitosan; b. 3% to 7.5% by weight of (b) at least one fatty acid selected from C14-C22 saturated branched-chain fatty acids and C14-C22 linear monounsaturated fatty acids, such as isopalmitic acid (Ci6), isostearic acid (Ci8), myristoleic acid (C14), palmitoleic acid (Ci6), and oleic acid (Ci8), and mixtures thereof; c. 2% to 5% of (c) at least one oil-soluble organic UV filter selected from bis-resorcinyl triazine compounds, in particular bis-ethylhexyloxyphenol methoxyphenyl triazine; and d. 3% to 10% by weight of (d) at least one oil selected from the ester oils of monoesters of monoacids and monoalcohols, such as ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, isostearyl neopentanoate, and combinations thereof. [Preparation]

[0339] The composition according to the present invention can be prepared by mixing ingredients (a) to (d), as essential ingredients, and the optional ingredient(s), as explained above.

[0340] The method and means for mixing the above essential and optional ingredients are not limited. Any conventional method and means can be used to mix the above essential and optional ingredients to prepare the composition according to the present invention.

[0341] The composition according to the present invention can be prepared by simple or easy mixing with a conventional mixing means such as a stirrer and homogenizer. Furthermore, heating may not be necessary. Therefore, the process for preparing the composition according to the present invention can be environmentally friendly. [Cosmetic process]

[0342] The present invention also relates to:

[0343] a cosmetic process for a keratinous material such as skin, comprising the application to the keratinous material of the composition according to the present invention.

[0344] The composition according to the present invention can preferably be used as a cosmetic composition. The cosmetic composition can be a Sun care composition to protect keratinous materials, such as skin, against UV rays.

[0345] The cosmetic process here refers to a non-therapeutic cosmetic process for the care and / or makeup of the surface of a keratinous material such as the skin.

[0346] Therefore, the present invention relates to a cosmetic process for protecting keratinous materials against UV radiation, comprising at least one step of applying the composition according to the present invention to the keratinous material, such as the skin. EXAMPLES

[0347] The present invention will be described in more detail by means of examples which, however, shall not be construed as limiting the scope of the present invention. [Compositions]

[0348] Each of the O / W emulsion compositions according to Examples 1 to 9 (Ex. 1 to Ex. 9) and Comparative Examples 1 and 2 (Ex. Comp. 1, Ex. Comp. 2) was prepared by mixing the substances listed in Tables 1 and 2 below. The numerical values ​​for the quantities of the ingredients are all based on the "% by weight" as active raw materials. [Assessment] (Emulsion formation)

[0349] The emulsion formation of each of the emulsion compositions obtained was observed visually using an optical microscope after their manufacture, and evaluated according to the following criteria.

[0350] Very good: a stable emulsion was obtained and the oil droplets were very fine

[0351] Good: a stable emulsion was obtained and the oil droplets were fine

[0352] Passable: between stable and unstable

[0353] Bad: an unstable emulsion was obtained and the oil droplets were not fine (Crystallization)

[0354] Each of the emulsion compositions obtained in a beaker was stored at 4 °C for 7 days after preparation. The appearance of each sample was then observed under an optical microscope, and the crystallization result was evaluated according to the following criteria.

[0355] Good: no crystals were observed

[0356] Bad: crystals were observed

[0357] The results are shown in Tables 1 and 2 below.

[0358] ]Table 1[ Ingredients Ex. 1 Ex. comp. 1 Ex. comp. 2 Ex. 2 Ex. 3 Water Qs. 100 Qs. 100 Qs. 100 Qs. 100 Qs. 100 Chitosan (MW 110000) 2 - 2 2 2 Lactic acid 1 - 1 1 1 Pentylene glycol 8 8 8 - 3 Butylene glycol 2 2 2 - - Preservative qs qs qs qs qs Dicaprylyl carbonate 5 10 10 5 5 Bis-ethylhexyloxyphenol methoxyphenyl triazine 3 3 3 3 3 Isostearic acid 5 - - 5 5 Glyceryl stearate (and) PEG-100 stearate - 3 - - - Evaluation Emulsion form Very good Fair Poor Good Very good Crystallization Good Poor Poor Good Good

[0359] ]Table 2[ Ingredients Ex. 4 Ex. 5 Ex. 6 Ex. 7 Ex. 8 Ex. 9 Water Qs. 100 Qs. 100 Qs. 100 Qs. 100 Qs. 100 Qs. 100 Chitosan (MW 110000) 2 2 2 2 2 2 Lactic acid 1 1 1 1 1 1 Pentylene glycol 8 8 10 - - 8 Butylene glycol 2 2 - 10 - 2 Isopentyldiol - - - - 10 - Preservative qs qs qs qs qs qs Dicaprylyl carbonate 5 5 5 5 5 10 Bis-ethylhexyloxypheno-1-methoxyphenyl triazine 3 3 3 3 3 3 Isostearic acid - - - 5 5 Oleic acid 5 5 5 5 - - Evaluation Emulsion form Very good Very good Very good Good Good Very good Crystallization Good Good Good Good Good Good

[0360] As can be seen from the evaluation results in Tables 1 and 2, the emulsion compositions according to Examples 1 to 9, which include the combination of (a) cationic polymer, (b) fatty acid, (c) oil-soluble organic UV filter, and (d) oil, provided good emulsion formation and were able to inhibit the crystallization of (c) oil-soluble organic UV filter.

[0361] On the other hand, charge aggregation was observed in the compositions according to Comparative Examples 1 to 3, which do not include the (a) cationic polymer of the present invention.

[0362] Therefore, it can be concluded that emulsion compositions according to the present invention are highly preferable as a cosmetic sun care composition.

Claims

Demands

1. Emulsion composition comprising: (a) at least one cationic polymer; (b) at least one fatty acid; (c) at least one oil-soluble organic UV filter; and (d) at least one oil in an amount of 15% by weight or less relative to the total weight of the composition.

2. Composition according to claim 1, wherein the (a) cationic polymer is selected from polyamines.

3. Composition according to claim 1 or 2, wherein the (a) cationic polymer is selected from chitosan, polylysine and a mixture thereof, and is preferably chitosan.

4. Composition according to any one of claims 1 to 3, wherein (b) fatty acid is selected from C8-C24 linear or branched saturated or unsaturated fatty acids, preferably C2-C22.

5. Composition according to any one of claims 1 to 4, wherein (b) fatty acid is selected from CM-C22 saturated branched-chain fatty acids and CM-C22 linear monounsaturated fatty acids, such as isopalmitic acid (Ci6), isostearic acid (Ci8), myristoleic acid (Ci4), palmitoleic acid (Ci6), and oleic acid (Ci8), and mixtures thereof.

6. Composition according to any one of claims 1 to 5, wherein the (d) oil is selected from ester oils, preferably ester oils of monoesters of monoacids and monoalcohols, such as ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, isostearyl neopentanoate, and combinations thereof.

7. Composition according to any one of claims 1 to 6, wherein the (a) cationic polymer is present in an amount from 0.1% to 10% by weight, preferably from 0.5% to 7.5% by weight and, more preferably, from 1% to 5% by weight, relative to the total weight of the composition.

8. Composition according to any one of claims 1 to 7, wherein (b) fatty acid is present in an amount ranging from 1% at 15% by weight, preferably from 2% to 10% by weight, and more preferably from 3% to 7.5% by weight, relative to the total weight of the composition.

9. Composition according to any one of claims 1 to 8, wherein the (c) oil-soluble organic UV filter is present in an amount from 0.5% to 10% by weight, preferably from 1% to 7.5% by weight, and more preferably from 2% to 5% by weight, relative to the total weight of the composition.

10. Composition according to any one of claims 1 to 9, wherein the (d) oil is present in an amount of 0.5% to 15% by weight, preferably 1% to 12.5% ​​by weight, and more preferably 3% to 10% by weight, relative to the total weight of the composition.

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