Emulsion composition comprising cationic polymer and inorganic powder

Abstract

To provide an emulsion composition from which powder sufficiently dispersed in the emulsion composition can be produced without using a surfactant.SOLUTION: The present invention relates to an emulsion composition comprising (a) at least one cationic polymer in an amount of 0.8% by weight or more, relative to the total weight of the composition, (b) at least one monovalent non-polymeric acid or salt thereof, (c) at least one oil, (d) at least one fatty acid, (e) at least one inorganic UV filter, and (f) at least one polyol. The present invention can provide an emulsion composition which can provide a dispersed inorganic UV filter even without using a surfactant.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an emulsion composition comprising a cationic polymer and an inorganic powder, preferably a sun care composition in the form of an O / W emulsion comprising a cationic polymer and an inorganic powder for keratinous materials such as the skin. [Background technology]

[0002] Sun care products are widely used to protect keratin materials, especially skin, from the damage caused by UV radiation.Among sun care products, emulsion sun care compositions are generally water-resistant, so they can be kept on the surface of skin even after being exposed to water or sweat, and are therefore widely distributed.

[0003] To obtain stable emulsion compositions, the use of polymers as emulsion stabilizers in emulsions has been reported.

[0004] For example, JP-A-2023-091311 discloses a composition comprising (a-1) at least one cationic polymer, (a-2) at least one monovalent non-polymeric acid or a salt thereof, (a-3) water, (b-1) at least one oil, and (b-2) at least one fatty acid.

[0005] Furthermore, WO2016 / 102064 discloses an oil-in-water (O / W) emulsion comprising at least one UV filter, an emulsion stabilizer and viscosity modifier, and a gelling agent in a physiologically acceptable medium, the emulsion further comprising at least two chelating agents and a surfactant.

[0006] Typically, there are two types of sunscreen cosmetic active ingredients that are used to achieve photoprotection: inorganic UV filter and organic UV filter.When inorganic UV filter is used, it is necessary that inorganic UV filter be sufficiently dispersed in medium to produce UV shielding effect.Generally, the dispersion of inorganic filler is achieved together with surfactant.However, the use of a large amount of surfactant can cause poor long-lasting effect and unpleasant texture.

[0007] Moreover, the formulation of environmentally compatible cosmetics, designed and developed with environmental issues in mind, has become a major goal in meeting global challenges, and it is therefore essential to propose more sustainable compositions, preparation methods and ingredients to address these environmental issues.

[0008] 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.

[0009] Therefore, there remains a need to provide new formulations of emulsion compositions in which well-dispersed powders in emulsion compositions can be produced without the use of surfactants. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] JP-A-2023-091311 [Patent Document 2] WO2016 / 102064 [Patent Document 3] European Patent Application No. 0080976 [Patent Document 4] French Patent No. 2077143 [Patent Document 5] French Patent No. 2393573 [Patent Document 6] French Patent No. 1492597, etc. [Patent Document 7] WO2005 / 000903 [Patent Document 8] U.S. Patent No. 4,131,576 [Patent Document 9] U.S. Patent No. 3,589,578 [Patent Document 10] U.S. Patent No. 4,031,307 [Patent Document 11] French Patent No. 2162025 [Patent Document 12] French Patent No. 2280361 [Patent Document 13] French Patent No. 2252840 [Patent Document 14] French Patent No. 2368508 [Patent Document 15] French Patent No. 1,583,363 [Patent Document 16] U.S. Patent No. 3,227,615 [Patent Document 17] U.S. Patent No. 2,961,347 [Patent Document 18] French Patent No. 2080759 [Patent Document 19] French Certificate of Addition No. 2190406 [Patent Document 20] French Patent No. 2320330 [Patent Document 21] French Patent No. 2270846 [Patent Document 22] French Patent No. 2316271 [Patent Document 23] French Patent No. 2336434 [Patent Document 24] French Patent No. 2413907 [Patent Document 25] U.S. Patent No. 2,273,780 [Patent Document 26] U.S. Patent No. 2,375,853 [Patent Document 27] U.S. Patent No. 2,388,614 [Patent Document 28] U.S. Patent No. 2,454,547 [Patent Document 29] U.S. Patent No. 3,206,462 [Patent Document 30] U.S. Patent No. 2,261,002 [Patent Document 31] U.S. Patent No. 2,271,378 [Patent Document 32] U.S. Patent No. 3,874,870 [Patent Document 33] U.S. Patent No. 4,001,432 [Patent Document 34] U.S. Patent No. 3,929,990 [Patent Document 35] U.S. Patent No. 3,966,904 [Patent Document 36] U.S. Patent No. 4,005,193 [Patent Document 37] U.S. Patent No. 4,025,617 [Patent Document 38] U.S. Patent No. 4,025,627 [Patent Document 39] U.S. Patent No. 4,025,653 [Patent Document 40] U.S. Patent No. 4,026,945 [Patent Document 41] U.S. Patent No. 4,027,020 [Patent Document 42] European Patent Application No. 0122324 [Non-patent literature]

[0011] [Non-Patent Document 1] Walter Noll, Chemistry and Technology of Silicones (1968), Academic Press [Non-patent document 2] Cosmetics and Toiletries, Vol. 91, January 1976, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics [Non-patent document 3] Cosmetics & Toiletries, February 1990, Volume 105, pp. 53-64 Summary of the Invention [Problem to be solved by the invention]

[0012] An object of the present invention is to provide an emulsion composition that can produce a powder that is well dispersed in the emulsion composition without the use of a surfactant. [Means for solving the problem]

[0013] The above object of the present invention is to (a) at least one cationic polymer in an amount of 0.8% by weight or more, based on the total weight of the composition; (b) at least one monovalent non-polymeric acid or salt thereof; (c) at least one oil; (d) at least one fatty acid; (e) at least one inorganic UV filter, and (f) at least one polyol This can be achieved by an emulsion composition comprising:

[0014] (a) The cationic polymer may be selected from polyamines.

[0015] (a) The cationic polymer may be selected from chitosan, polylysine, and mixtures thereof, and is preferably chitosan.

[0016] (b) The monovalent non-polymeric acid or salt thereof may be selected from hydroxy acids and salts thereof, preferably lactic acid, glycolic acid, and salts thereof.

[0017] (c) Fatty acids are C8 to C 24 , preferably C 12 ~C 22 They may be chosen from saturated or unsaturated, straight or branched chain fatty acids.

[0018] (c) Fatty acids are C 14 ~C 22 Saturated branched fatty acids and C 14 ~C 22 Linear monounsaturated fatty acid (isopalmitic acid (C 16 ), isostearic acid (C 18 ), myristoleic acid (C 14 ), palmitoleic acid (C 16 ), and oleic acid (C 18 ) etc.), as well as mixtures thereof.

[0019] (d) The 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 isononanoate, isononyl isononanoate, isodecyl neopentanoate, isostearyl neopentanoate, and combinations thereof.

[0020] (e) Inorganic UV filters may be selected from coated or uncoated titanium dioxide, iron oxide, zinc oxide, zirconium oxide, and cerium oxide, preferably coated titanium dioxide.

[0021] (f) The polyol may be selected from C2 to C9 diols.

[0022] (f) The polyol may include at least one diol having 5 to 9 carbon atoms.

[0023] (f) The polyol may include at least one diol having 2 to 4 carbon atoms and at least one diol having 5 to 9 carbon atoms.

[0024] The (a) cationic polymer may be present in an amount ranging from 0.8% to 10% by weight, preferably from 0.9% to 7.5% by weight, and more preferably from 1% to 5% by weight, relative to the total weight of the composition.

[0025] The (f) polyol may be present in an amount ranging from 2% to 25% by weight, preferably from 3% to 20% by weight, and more preferably from 4% to 15% by weight, relative to the total weight of the composition.

[0026] The composition may further comprise a surfactant in an amount of 1% by weight or less, preferably 0.5% by weight or less, more preferably 0.1% by weight or less, relative to the total weight of the composition, or the composition may be completely free of surfactants.

[0027] The present invention also relates to a cosmetic method for keratinous materials such as the skin, which comprises the step of applying a composition according to the present invention to the keratinous materials. DETAILED DESCRIPTION OF THE INVENTION

[0028] As a result of intensive research, the present inventors have surprisingly found that an emulsion composition containing a combination of (a) a cationic polymer, (b) a monovalent non-polymeric acid or a salt thereof, (c) a fatty acid, (d) an oil, and (f) a polyol can provide an emulsion composition containing (e) an inorganic UV filter that is well dispersed without the use of any surfactant, and thus have been able to complete the present invention.

[0029] Therefore, the present invention provides (a) at least one cationic polymer in an amount of 0.8% by weight or more, based on the total weight of the composition; (b) at least one monovalent non-polymeric acid or salt thereof; (c) at least one fatty acid; (d) at least one oil; (e) at least one inorganic UV filter, and (f) at least one polyol The present invention relates to an emulsion composition comprising:

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

[0031] [Composition] The composition according to the present invention comprises (a) at least one cationic polymer, (b) at least one monovalent non-polymeric acid or salt thereof, (c) at least one oil, (d) at least one fatty acid, (e) at least one inorganic UV filter, and (f) at least one polyol.

[0032] The composition according to the present invention is an emulsion composition comprising at least one aqueous phase and at least one oily phase. The composition according to the present invention is in the form of an O / W, W / O, or multiphase W / O / W, or O / W / O emulsion, in particular of liquid or semi-liquid consistency. Preferably, the composition according to the present invention has an O / W, W / O / W, or O / W / O emulsion form, with a plurality of discontinuous dispersed oily phases in droplet form. Preferably, the composition according to the present invention has an emulsion form comprising a plurality of discontinuous dispersed oily phases in a continuous aqueous phase. Preferably, the composition according to the present invention is in the form of an O / W emulsion comprising a plurality of discontinuous dispersed oily phases and a continuous aqueous phase.

[0033] The emulsion composition of the present invention can produce an inorganic UV filter dispersed in the emulsion structure without using any surfactant. It is believed that this effect can be produced by a complex of (a) a cationic polymer, (b) a monovalent non-polymeric acid or its salt, and (c) a fatty acid. A small amount of surfactant or no surfactant can contribute to improved long-lasting properties and a light texture of the composition.

[0034] The composition according to the present invention may be intended for use as a topical cosmetic composition. Therefore, the composition according to the present invention may be intended for application to keratinous materials. In this specification, keratinous materials refer to materials containing keratin as a major component, and examples thereof include skin, scalp, nails, lips, hair, etc. In particular, the composition according to the present invention may be a skin suncare cosmetic composition for protecting skin from ultraviolet rays. The emulsion composition according to the present invention may exhibit improved UV filtering effects due to the good dispersion of (e) the inorganic UV filter.

[0035] The ingredients in the composition are described in detail below.

[0036] (cationic polymer) 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] The cationic polymer has a positive charge density of 0.01 meq / g to 20 meq / g, preferably 0.05 to 15 meq / g, and more preferably 0.1 to 10 meq / g.

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

[0039] The molecular weight of the (a) cationic polymer may be greater than 20,000. The molecular weight of the (a) 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 the (a) 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, (a) the molecular weight of the cationic polymer is in the range of more than 20,000 and less than 500,000, preferably more than 30,000 and less than 400,000, more preferably more than 50,000 and less than 300,000, and even more preferably more than 70,000 and less than 200,000.

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

[0042] (a) The cationic polymer may have at least one positively charged moiety selected from the group consisting of primary, secondary, or tertiary amino groups, quaternary ammonium groups, guanidine groups, biguanide groups, imidazole groups, imino groups, and pyridyl groups. The term "(primary) amino group" herein refers to an -NH group.

[0043] (a) The cationic polymer may be a homopolymer or a copolymer. The term "copolymer" is understood to mean both copolymers obtained from two types of monomers and those obtained from more than two types of monomers, for example terpolymers obtained from three types of monomers.

[0044] (a) The cationic polymer may be selected from natural and synthetic cationic polymers. Non-limiting examples of cationic polymers are:

[0045] (1) Homopolymers and copolymers derived from esters and amides of acrylic or methacrylic acid and comprising at least one unit selected from units of the following formula:

[0046] [ka]

[0047] (In the formula, R1 and R2 may be the same or different and are selected from hydrogen and alkyl groups containing 1 to 6 carbon atoms, such as methyl and ethyl groups; R3 is selected from hydrogen and CH3; the symbol A is selected from linear or branched alkyl groups containing 1 to 6 carbon atoms, for example 2 to 3 carbon atoms, and hydroxyalkyl groups containing 1 to 4 carbon atoms; R4, R5 and R6 may be the same or different and are selected from alkyl groups containing 1 to 18 carbon atoms and benzyl groups, and in at least one embodiment alkyl groups containing 1 to 6 carbon atoms; X is an anion derived from an inorganic or organic acid, such as methosulfate, and a halide ion, such as chloride and bromide.

[0048] The copolymers of family (1) may also comprise at least one unit derived from a comonomer, which may be chosen from acrylamide, methacrylamide, diacetone acrylamide, acrylamides and methacrylamides whose nitrogen atoms are substituted with (C1-C4) lower alkyl groups, groups derived from acrylic or methacrylic acid and their esters, vinyl lactams such as vinylpyrrolidone and vinylcaprolactam, and vinyl esters.

[0049] Examples of family (1) copolymers include, but are not limited to: Copolymers of acrylamide and dimethylaminoethyl methacrylate quaternized with dimethyl sulfate or dimethyl halide; Copolymers of acrylamide and methacryloyloxyethyltrimethylammonium chloride, such as those described in European Patent Application No. 0080976; Copolymer of acrylamide and methacryloyloxyethyltrimethylammonium methosulfate, Quaternized or non-quaternized vinylpyrrolidone / dialkylaminoalkyl acrylate or methacrylate copolymers, such as those described in French Patents Nos. 2 077 143 and 2 393 573; Dimethylaminoethyl methacrylate / vinyl caprolactam / vinyl pyrrolidone terpolymer, Vinylpyrrolidone / methacrylamidopropyl dimethylamine copolymer, quaternized vinylpyrrolidone / dimethylaminopropyl methacrylamide copolymer, and Crosslinked methacryloyloxy(C1-C4)alkyltri(C1-C4)alkylammonium salt polymers, such as those obtained by homopolymerization of dimethylaminoethyl methacrylate quaternized with methyl chloride or by copolymerization of acrylamide with dimethylaminoethyl methacrylate quaternized with methyl chloride, followed by crosslinking with a compound containing olefinic unsaturation, such as methylenebisacrylamide;

[0050] Preferably, the Family (1) copolymers have units derived from vinylpyrrolidone. More preferably, the Family (1) copolymers have at least one pendant ring structure derived from vinylpyrrolidone. Meanwhile, it is preferred that the Family (1) copolymers do not contain a ring structure in the polymer backbone.

[0051] The copolymers of family (1) containing vinylpyrrolidone units can be chosen from: (i) Copolymers containing vinylpyrrolidone units and dimethylaminoethyl methacrylate units, such as vinylpyrrolidone / dimethylaminoethyl methacrylate copolymers, such as the vinylpyrrolidone / dimethylaminoethyl methacrylate copolymer (20 / 80 by weight) sold under the trade name Copolymer 845 by the company ISP, vinylpyrrolidone / dimethylaminoethyl methacrylate copolymers quaternized with diethyl sulfate, such as those sold under the trade names Gafquat 734, 755, 755S and 755L by the company ISP; vinylpyrrolidone / dimethylaminoethyl methacrylate / hydrophilic polyurethane copolymers, such as those sold under the trade names Pecogel GC-310 by the company UCIB or Aquamere C1031 and C1511 by the company Blagden Chemicals; - Quaternized or non-quaternized vinylpyrrolidone / dimethylaminoethyl methacrylate / C8-C 16 Olefin copolymers, such as vinylpyrrolidone / dimethylaminoethyl methacrylate / C8-C6 sold under the trade names Ganex ACP1050-1057, 1062-1069, and 1079-1086 by ISP; 16 olefin copolymers, and vinylpyrrolidone / dimethylaminoethyl methacrylate / vinylcaprolactam copolymers, such as the vinylpyrrolidone / dimethylaminoethyl methacrylate / vinylcaprolactam copolymer sold under the trade name Gaffix VC713 by the company ISP; (ii) Copolymers containing vinylpyrrolidone units and methacrylamidopropyltrimethylammonium (MAPTAC) units, such as vinylpyrrolidone / methacrylamidopropyltrimethylammonium copolymers, such as the vinylpyrrolidone / MAPTAC copolymers sold under the trade names Gafquat ACP1011 and Gafquat HS100 by the company ISP; and vinylpyrrolidone / methacrylamidopropyltrimethylammonium / vinylcaprolactam terpolymers, such as those sold under the trade names Polymer ACP 1059, 1060 and 1156 by the company ISP, and (iii) Copolymers containing vinylpyrrolidone units and methylvinylimidazolium units, such as vinylpyrrolidone / methylvinylimidazolium chloride copolymers, for example those sold under the trade names Luviquat FC370, FC550, FC905 and HM552 by BASF; vinylpyrrolidone / methylvinylimidazolium chloride / vinylimidazole copolymers, such as the vinylpyrrolidone / methylvinylimidazolium chloride / vinylimidazole copolymer sold under the trade name Luviquat 8155 by BASF; and Vinylpyrrolidone / methylvinylimidazolium methosulfate copolymers, for example the vinylpyrrolidone / methylvinylimidazolium methosulfate copolymer sold under the trade name Luviquat MS370 by the company BASF.

[0052] The copolymers of family (1) are preferably selected from copolymers containing vinylpyrrolidone units and dimethylaminoethyl methacrylate units, more preferably from vinylpyrrolidone / dimethylaminoethyl methacrylate copolymers quaternized with diethyl sulfate, and even more preferably from polyquaternium-11.

[0053] (2) Cationic cellulose derivatives, such as cellulose ether derivatives containing quaternary ammonium groups, such as those described in French Patent No. 1492597, for example, the polymers sold by Union Carbide Corporation under the names "JR" (JR 400, JR 125, JR 30M) or "LR" (LR 400, LR 30M). These polymers are also defined in the CTFA dictionary as quaternary ammonium hydroxyethyl celluloses reacted with epoxides substituted with trimethylammonium groups.

[0054] The cationic cellulose derivative is preferably a quaternized hydroxyethyl cellulose modified with at least one quaternary ammonium group containing at least one fatty chain, for example, an alkyl, arylalkyl, or alkylaryl group containing at least 8 carbon atoms, or a mixture thereof. The alkyl group carried by the quaternary ammonium group may preferably contain 8 to 30 carbon atoms, particularly 10 to 30 carbon atoms. The aryl group preferably represents a phenyl, benzyl, naphthyl, or anthryl group.

[0055] More preferably, the cationic cellulose derivative comprises at least one C8-C 30 It may contain at least one quaternary ammonium group containing a hydrocarbon group.

[0056] C8 to C that can be mentioned 30Examples of quaternized alkylhydroxyethylcelluloses containing fatty chains 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) sold by Amerchol, 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, and the products Crodacel QM, Crodacel QL (C12 alkyl) and Crodacel QS (C18 alkyl) sold by Croda.

[0057] Preferably, the cationic polymer is selected from the group consisting of Polyquaternium-24, Polyquaternium-67, and mixtures thereof, with Polyquaternium-67 being most preferred.

[0058] From another perspective, the cationic cellulose derivative can also be selected from cationic cellulose ethers containing 4000 to 10000 anhydroglucose units, wherein the anhydroglucose units are substituted with at least: (i) one substituent of the formula: [R4R5R6R9N + ](X2 - ) [In the formula, R4 and R5 each independently represent a methyl group or an ethyl group; R6 is a linear or branched C8-C 24 Alkyl group or linear or branched alkyl group is C8-C 24 represents an aralkyl group represented by the formula: R9 allows for attachment to an anhydroglucose group, -(B) qrepresents a divalent group selected from -CH2-CHOH-CH2- and -CH2CH2-; q represents 0 or 1; B is the divalent group -(CH2CH2O) n' - indicates n' is an integer ranging from 1 to 100; X2 - represents an anion], (ii) one substituent of the formula: [R1R2R3R8N + ](X1 - ) [In the formula, R 1 , R 2 and R 3 are each independently a methyl group or an ethyl group, R 8 allows for attachment to an anhydroglucose group, -(A) p represents a divalent group selected from -CH2-CHOH-CH2- and -CH2CH2-; p represents 0 or 1; A is the divalent group -(CH2CH2O) n - indicates n is an integer ranging from 1 to 100; X1 - represents an anion].

[0059] Preferably, the formula [R4R5R6R9N + ](X2 - The substituent (i) of the anhydroglucose unit is present in an average amount of 0.0003 to 0.08 moles per mole of anhydroglucose unit.

[0060] The cationic cellulose ether that can be used in the composition according to the present invention is preferably hydroxyethyl cellulose or hydroxypropyl cellulose.The cationic cellulose ether that can be used in the composition according to the present invention preferably comprises more than 4500, advantageously more than 5000, more preferably more than 6000 anhydroglucose units.

[0061] Preferably, the cationic cellulose ethers that may be used in the compositions according to the invention contain up to 9000, more preferably up to 8000, anhydroglucose units.

[0062] These cationic cellulose ethers and methods for their preparation are described in patent application WO2005 / 000903.

[0063] According to a preferred variant, the cationic cellulose ethers that may be used in the compositions according to the invention contain at least one unit (IV) and the following units (I), (II) and (III):

[0064] [ka]

[0065] formed from at least one of: The total number of units (I)+(II)+(III)+(IV) is between 4,000 and 10,000, The ratio [(III) + (IV)] / [(I) + (II) + (III) + (IV)] is in the range of 0.0003 to 0.8, The ratio [(II) + (IV)] / [(I) + (II) + (III) + (IV)] is in the range of 0.02 to 0.9; the integers n and n' are, independently of one another, in the range of 0 to 5; R1, R2, R3, R4 and R5 each independently represent a methyl group or an ethyl group; R6 is a linear or branched C8-C 24 , preferably C 10 ~C 24 , more preferably C 12 ~C 24 , and even better C 12 ~C 15 or a linear or branched alkyl moiety having C8 to C 24 represents an aralkyl group represented by the formula: X1 - and X2 -are, independently of each other, phosphate ions, nitrate ions, sulfate ions and halide ions (Cl - , Br - , F - , I - ) represents an anion preferably selected from

[0066] According to a particular variant, the cationic cellulose ether that can be used in the composition according to the invention is formed from at least one unit (IV) and at least one of units (I), (II) or (III) described above, wherein R6 is a linear dodecyl group.

[0067] Among the cationic cellulose ethers that can be used in the compositions of the invention, mention may be made of polymers of the Softcat SL-5, SL-30, SL-60 and SL-100 type (INCI: Polyquaternium-67) sold by the company Amerchol. Particularly preferred cationic cellulose ethers are polymers of the SL-60 and SL-100 type.

[0068] (3) Cationic cellulose derivatives such as cellulose copolymers and cellulose derivatives grafted with quaternary ammonium water-soluble monomers, as described in U.S. Pat. No. 4,131,576, for example, hydroxyalkyl celluloses, such as hydroxymethyl-, hydroxyethyl-, and hydroxypropyl celluloses grafted with salts selected from methacryloylethyltrimethylammonium salts, methacrylamidepropyltrimethylammonium salts, and dimethyldiallylammonium salts.

[0069] Commercially available products corresponding to these polymers include, for example, those sold under the names "Celquat® L 200" and "Celquat® H 100" by National Starch.

[0070] (4) Non-cellulosic cationic polysaccharides, such as guar gum containing cationic trialkylammonium groups, cationic hyaluronic acid, and dextran hydroxypropyltrimonium chloride, as described in U.S. Patent Nos. 3,589,578 and 4,031,307. Salt-modified guar gum, such as guar gum modified with 2,3-epoxypropyltrimethylammonium chloride (guar hydroxypropyltrimonium chloride), can also be used.

[0071] Such products are sold, for example, by the company MEYHALL under the trade names JAGUAR® C13 S, JAGUAR® C15, JAGUAR® C17 and JAGUAR® C162.

[0072] (5) Polymers containing piperazinyl units and divalent alkylene or hydroxyalkylene groups containing linear or branched chains optionally interrupted by at least one entity selected from oxygen, sulfur, nitrogen, aromatic rings and heterocycles, and also the oxidation and / or quaternization products of these polymers. Such polymers are described, for example, in French Patents Nos. 2,162,025 and 2,280,361.

[0073] (6) Water-soluble polyaminoamides, for example, prepared by polycondensation of acidic compounds with polyamines, which may be crosslinked with an entity selected from epihalohydrins, diepoxides, dianhydrides, unsaturated dianhydrides, bisunsaturated derivatives, bishalohydrins, bisazetidiniums, bishaloacyldiamines, bisalkylhalides, and oligomers obtained by reacting bifunctional compounds reactive with entities selected from bishalohydrins, bisazetidiniums, bishaloacyldiamines, bisalkylhalides, epihalohydrins, diepoxides, and bisunsaturated derivatives; the crosslinking agent is used in an amount ranging from 0.025 to 0.35 mol per amine group of the polyaminoamide; these polyaminoamides may optionally be alkylated, or, if they contain at least one tertiary amine function, they may be quaternized. Such polymers are described, for example, in French Patents Nos. 2,252,840 and 2,368,508.

[0074] (7) Polyaminoamide derivatives obtained by condensing polyalkylenepolyamines with polycarboxylic acids followed by alkylation with bifunctional agents, such as adipic acid / dialkylaminohydroxyalkyldialkylenetriamine polymers, in which the alkyl groups, such as methyl, ethyl, and propyl groups, contain 1 to 4 carbon atoms, and the alkylene groups, such as ethylene groups, contain 1 to 4 carbon atoms. Such polymers are described, for example, in French Patent No. 1,583,363. In at least one embodiment, these derivatives can be selected from adipic acid / dimethylaminohydroxypropyldiethylenetriamine polymers.

[0075] (8) Polymers obtained by reacting a polyalkylenepolyamine containing two primary amine groups and at least one secondary amine group with a dicarboxylic acid selected from diglycolic acid and saturated aliphatic dicarboxylic acids containing 3 to 8 carbon atoms. The molar ratio of polyalkylenepolyamine to dicarboxylic acid may be in the range of 0.8:1 to 1.4:1, and the resulting polyaminoamide is reacted with epichlorohydrin in a molar ratio of epichlorohydrin to secondary amine groups of the polyaminoamide in the range of 0.5:1 to 1.8:1. Such polymers are described, for example, in U.S. Patents 3,227,615 and 2,961,347.

[0076] (9) Cyclopolymers of alkyldiallylamine and dialkyldiallyl-ammonium, for example homopolymers and copolymers comprising, as the main chain building block, at least one unit selected from units of formulae (Ia) and (Ib):

[0077] [ka]

[0078] [In the formula, k and t may be identical or different and are equal to 0 or 1, the sum k+t is equal to 1; R 12 is selected from hydrogen and a methyl group; R 10 and R 11 may be the same or different and are selected from alkyl groups containing 1 to 6 carbon atoms, hydroxyalkyl groups where the alkyl group contains, for example, 1 to 5 carbon atoms, and lower (C1-C4) amidoalkyl groups, or R 10 and R 11 may, together with the nitrogen atom to which they are attached, form a heterocyclic group, such as piperidinyl and morpholinyl; 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 its Certificate of Addition No. 2 190 406.

[0079] In one embodiment, R 10 and R 11 may be the same or different and are selected from alkyl groups containing 1 to 4 carbon atoms.

[0080] Examples of such polymers include, but are not limited to, (co)polydiallyldialkylammonium chlorides, such as the dimethyldiallylammonium chloride homopolymer sold under the name "MERQUAT® 100" by CALGON (and its lower weight average molecular weight homologues), and the copolymer of diallyldimethylammonium chloride and acrylamide sold under the name "MERQUAT® 550."

[0081] (10) A quaternary diammonium polymer comprising at least one repeating unit of formula (II):

[0082] [ka]

[0083] {In the formula, R 13 , R 14 , R 15 and R 16 are the same or different and are selected from aliphatic, alicyclic and arylaliphatic groups containing 1 to 20 carbon atoms, and lower hydroxyalkylaliphatic groups; or R 13 , R 14 , R 15 and R 16may together with or separately from the nitrogen atom to which they are attached form a heterocycle optionally containing a second heteroatom other than nitrogen, or R 13 , R 14 , R 15 and R 16 may be the same or different and may be a nitrile group, an ester group, an acyl group, an amide group, -CO-OR 17 -E group and -CO-NH-R 17 -E group (wherein, R 17 is an alkylene group, and E is a quaternary ammonium group), A1 and B1 may be identical or different and are selected from polymethylene groups containing 2 to 20 carbon atoms, which may be linear or branched, saturated or unsaturated, and which may contain, linked to or inserted 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; X - is an anion derived from an inorganic or organic acid, A1, R 13 and R 15 may be taken together with the two nitrogen atoms to which they are attached to form a piperazine ring; When A1 is selected from linear or branched, saturated or unsaturated alkylene or hydroxyalkylene groups, B1 can be selected from the following: -(CH2) n --CO-E'-OC-(CH2) n - [In the formula, E' is a) a glycol residue of the formula -OZO-, where Z is selected from linear or branched hydrocarbon-based groups and groups of the formula: -(CH2-CH2-O) x -CH2-CH2- -[CH2-CH(CH3)-O] y -CH2-CH(CH3)- wherein x and y may be the same or different and are selected from integers ranging from 1 to 4 representing a defined unique degree of polymerization and numbers ranging from 1 to 4 representing an average degree of polymerization; b) bis-secondary diamine residues, such as piperazine derivatives; c) bisprimary diamine residues of the formula -NH-Y-NH-, where Y is selected from linear or branched hydrocarbon-based radicals and the divalent radical -CH-CH-SS-CH-CH-, and d) a ureylene group of the formula -NH-CO-NH- Select from can be selected from}.

[0084] In at least one embodiment, X - is an anion, such as chloride or bromide.

[0085] Polymers of this type are described, for example, in French Patents Nos. 2320330, 2270846, 2316271, 2336434 and 2413907, and in U.S. Pat. Nos. 2,273,780, 2,375,853, 2,388,614, 2,454,547, 3,206,462, 2,261,0 02, 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.

[0086] Non-limiting examples of such polymers include those that contain at least one repeat unit of formula (III):

[0087] [ka]

[0088] (In the formula, R 13 , R14 , R 15 and R 16 are the same or different and are selected from alkyl and hydroxyalkyl groups containing 1 to 4 carbon atoms; n and p are the same or different and are integers ranging from 2 to 20; X - is an anion derived from an inorganic or organic acid).

[0089] (11) Polyquaternary ammonium polymers comprising units of formula (IV):

[0090] [ka]

[0091] [In the formula, R 18 , R 19 , R 20 and R 21 may be the same or different and are hydrogen, methyl, ethyl, propyl, β-hydroxyethyl, β-hydroxypropyl, -CH2CH2(OCH2CH2) p OH group (wherein p is selected from an integer ranging from 0 to 6), provided that R 18 , R 19 , R 20 and R 21 and hydrogen at the same time, r and s may be the same or different and are selected from integers ranging from 1 to 6; q is selected from an integer ranging from 0 to 34; X - is an anion, for example a halide ion, A is selected from dihalides and -CH2-CH2-O-CH2-CH2- groups.

[0092] Such compounds are described, for example, in European Patent Application No. 0122324.

[0093] (12) Quaternary polymers of vinylpyrrolidone and vinylimidazole. Other examples of suitable cationic polymers include, but are not limited to, cationic proteins and cationic protein hydrolysates, polyalkyleneimines such as polyethyleneimine, polymers comprising units selected from vinylpyridine units and vinylpyridinium units, condensates of polyamines with epichlorohydrin, quaternary polyureylenes, and chitin derivatives.

[0094] According to one embodiment of the present invention, the at least one cationic polymer is chosen from cellulose ether derivatives containing quaternary ammonium groups, such as the product sold under the name "JR 400" by UNION CARBIDE CORPORATION, cationic cyclopolymers, such as the homopolymers and copolymers of dimethyldiallylammonium chloride sold under the names MERQUAT® 100, MERQUAT® 550 and MERQUAT® S by CALGON, guar gum modified with 2,3-epoxypropyltrimethylammonium salt, and quaternary polymers of vinylpyrrolidone and vinylimidazole.

[0095] (13) Polyamines It is also possible to use (co)polyamines as cationic polymers, which may be homopolymers or copolymers containing multiple amino groups. The amino groups may be primary, secondary, tertiary, or quaternary amino groups. The amino groups may be present in the polymer backbone of the (co)polyamine or, if present, in pendant groups.

[0096] Examples of (co)polyamines include chitosan, (co)polyallylamine, (co)polyvinylamine, (co)polyaniline, (co)polyvinylimidazole, (co)polydimethylaminoethylene methacrylate, (co)polyvinylpyridines such as (co)poly-1-methyl-2-vinylpyridine, (co)polyimines such as (co)polyethyleneimine, (co)polypyridines such as (co)poly(quaternary pyridine), (co)polybiguanides such as (co)polyaminopropylbiguanide, (co)polylysine, (co)polyornithine, (co)polyarginine, (co)polyhistidine, aminodextran, aminocellulose, amino(co)polyvinyl acetal, and salts thereof.

[0097] Chitosan is preferably used as the (co)polyamine. Chitosan is well known. Chitosan can be a linear polysaccharide composed of randomly distributed β-(1→4)-linked D-glucosamine (deacetylated unit) and N-acetyl-D-glucosamine (acetylated unit). The acetylation degree of chitosan can be 1.0% to 10.0%, preferably 2.0% to 8.0%, and more preferably 3.0% to 6.0%. Chitosan can be prepared, for example, by treating chitin shells of shrimp and other crustaceans with an alkaline substance such as sodium hydroxide. Therefore, the cationic polymer can be a polyamine of a polysaccharide, preferably a linear polysaccharide.

[0098] As the (co)polyamine, it is preferable to use (co)polylysine. 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 ε-poly-L-lysine, which is typically used as a natural preservative in foods. 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.

[0099] (14) Cationic polyamino acids As the cationic polymer, it may be possible to use cationic polyamino acids, which may be cationic homopolymers or copolymers having multiple amino and carboxyl groups. The amino groups may be primary, secondary, tertiary, or quaternary amino groups. The amino groups may be present in the polymer backbone of the cationic polyamino acid or, if present, in pendant groups. The carboxyl groups may be present in pendant groups of the cationic polyamino acid, if present.

[0100] Examples of cationic polyamino acids include cationized collagen, cationized gelatin, steardimonium hydroxypropyl hydrolyzed wheat protein, cocodimonium hydroxypropyl hydrolyzed wheat protein, hydroxypropyltrimonium hydrolyzed conchiolin protein, steardimonium hydroxypropyl hydrolyzed soy protein, hydroxypropyltrimonium hydrolyzed soy protein, and cocodimonium hydroxypropyl hydrolyzed soy protein.

[0101] It may be preferred that the cationic polymer is selected from the group consisting of cyclopolymers of alkyldiallylamine and cyclopolymers of dialkyldiallylammonium, such as (co)polydiallyldialkylammonium chloride, (co)polyamines, such as (co)polylysine, cationic (co)polyamino acids, such as cationized collagen, and salts thereof.

[0102] The cationic polymer may be a polyquaternium polymer or a polymeric quaternary ammonium salt.

[0103] Polymerizable quaternary ammonium salts are cationic polymers containing at least one quaternized nitrogen atom. As polymerizable quaternary ammonium salts, polyquaternium products (CTFA name) can be mentioned in particular, which mainly contribute to the quality of foam and the skin feel after use, especially the skin feel after use. These polymers can be preferably selected from the following polymers: Polyquaternium-5, such as the product Merquat 5 sold by the company Nalco; Polyquaternium-6, such as the product Salcare SC 30 sold by BASF and the product Merquat 100 sold by Nalco; Polyquaternium-7, such as the products Merquat S, Merquat 2200, Merquat 7SPR and Merquat 550 sold by the company Nalco, and the product Salcare SC 10 sold by the company BASF; Polyquaternium-10, for example the product Polymer JR400 sold by the company Amerchol; Polyquaternium-11, such as the products Gafquat 755, Gafquat 755N and Gafquat 734 sold by the company ISP; Polyquaternium-15, for example the product Rohagit KF 720 F sold by the company Rohm; Polyquaternium-16, such as the products Luviquat FC905, Luviquat FC370, Luviquat HM552 and Luviquat FC550 sold by BASF; Polyquaternium-28, for example the product Styleze CC10 sold by the company ISP; Polyquaternium-44, for example the product Luviquat Care sold by the company BASF; Polyquaternium-46, for example the product Luviquat Hold sold by the company BASF; Polyquaternium-47, such as the product Merquat 2001 sold by Nalco; and Polyquaternium-67, for example the product Softcat sold by the company Amerchol.

[0104] (a) The cationic polymer is preferably selected from polyamines, more preferably chitosan, polylysine, and mixtures thereof, especially chitosan.

[0105] The amount of (a) cationic polymer in the composition according to the present invention is at least 0.8% by weight, based on the total weight of the composition. The amount of (a) cationic polymer in the composition may be preferably 0.9% by weight or more, more preferably 1% by weight or more.

[0106] The amount of (a) cationic polymer in the composition according to the present invention may be 10% by weight or less, preferably 7.5% by weight or less, more preferably 5% by weight or less, relative to the total weight of the composition.

[0107] The amount of (a) cationic polymer in the composition according to the present invention can be in the range of 0.8% to 10% by weight, preferably 0.9% to 7.5% by weight, more preferably 1% to 5% by weight, relative to the total weight of the composition.

[0108] In the context of this specification, any combination of the above upper and lower limits may be used to represent a range of preferred amounts.

[0109] (Monovalent non-polymeric acid or its salt) The composition according to the present invention includes (b) at least one monovalent non-polymeric acid or salt thereof. Two or more monovalent non-polymeric acids or salts thereof may be used in combination. Thus, a single type of monovalent non-polymeric acid or salt thereof, or a combination of different types of monovalent non-polymeric acids or salts thereof, may be used.

[0110] The term "non-polymeric" as used herein means that the acid is not obtained by polymerizing two or more monomers, and therefore does not correspond to acids obtained by polymerizing two or more monomers, such as polyacrylic acid.

[0111] The term "salt" as used herein refers to a salt formed by adding a suitable base to a monovalent non-polymeric acid, which can be obtained by reacting a monovalent non-polymeric acid with a base according to methods known to those skilled in the art. Examples of salts include metal salts, such as salts with alkali metals such as Na and K, and salts with alkaline earth metals such as Mg and Ca, and ammonium salts.

[0112] (b) The molecular weight of the monovalent non-polymeric acid or salt thereof is preferably less than 500, more preferably 250 or less, and even more preferably 100 or less.

[0113] The (b) monovalent non-polymeric acid or its salt can be included in the aqueous phase. The (b) monovalent non-polymeric acid or its salt can dissolve the (a) cationic polymer in the aqueous phase. The (b) monovalent non-polymeric acid or its salt can form a complex with the (a) cationic polymer.

[0114] (b) The monovalent non-polymeric acid or salt thereof may be selected from monovalent organic or inorganic acids and salts thereof, preferably monovalent organic acids and salts thereof, and more preferably monovalent carboxylic acids and salts thereof.

[0115] (b) The monovalent non-polymeric acid has a single acid group which may be selected from the group consisting of a carboxylic acid group, a sulfate group, a sulfonic acid group, a phosphoric acid group, a phosphonic acid group, and mixtures thereof.

[0116] (b) The monovalent non-polymeric acid may be selected from hydroxy acids, preferably alpha-hydroxy acids, such as lactic acid and glycolic acid.

[0117] (b) The monovalent non-polymeric acid may be a monovalent non-polymeric organic acid, preferably a monovalent carboxylic acid, more preferably lactic acid.

[0118] The amount of (b) monovalent non-polymeric acid or salt thereof in the composition according to the present invention may be 0.3% by weight or more, preferably 0.4% by weight or more, more preferably 0.5% by weight or more, based on the total weight of the composition.

[0119] The amount of (b) monovalent non-polymeric acid or salt thereof in the composition according to the present invention may be 15% by weight or less, preferably 10% by weight or less, more preferably 5% by weight or less, based on the total weight of the composition.

[0120] The composition according to the present invention may contain (b) a monovalent non-polymeric acid or a salt thereof in an amount of 0.3% by mass to 15% by mass, preferably 0.4% by mass to 10% by mass, and more preferably 0.5% by mass to 5% by mass, relative to the total mass of the composition.

[0121] (fatty acid) The composition according to the present invention comprises (c) 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.

[0122] The term "fatty acid" as used herein means a carboxylic acid having a long aliphatic carbon chain.

[0123] The (c) fatty acid has at least 4 carbon atoms. Preferably, the (c) fatty acid has at least 8 carbon atoms, more preferably at least 12 carbon atoms, and especially at least 14 carbon atoms. The (c) fatty acid may contain up to 24 carbon atoms, preferably up to 22 carbon atoms, and more preferably up to 20 carbon atoms. The (c) fatty acid may be C8-C 24 Fatty acids, preferably C 12 ~C 22 Fatty acids, even more preferably C 14 ~C 20 Preferably, it is selected from fatty acids.

[0124] The (c) fatty acid may be selected from saturated or unsaturated, straight-chain or branched fatty acids. Therefore, the (c) fatty acid may be selected from C8 to C 24 , preferably C 12 ~C 22 , more preferably C 14 ~C 20 They can be chosen from saturated and unsaturated straight or branched chain fatty acids.

[0125] The unsaturated linear or branched fatty acid may be a monounsaturated linear or branched fatty acid or a polyunsaturated linear or branched fatty acid. The unsaturated portion of the unsaturated linear or branched fatty acid may include a carbon-carbon double bond or a carbon-carbon triple bond.

[0126] Saturated fatty acids include linear or branched saturated fatty acids, such as caprylic acid (C8), pelargonic acid (C9), capric acid (C 10 ), lauric acid (C 12 ), myristic acid (C 14 ), pentadecanoic acid (C 15 ), palmitic acid (C 16 ), isopalmitic acid (C 16 ), heptadecanoic acid (C 17 ), stearic acid (C 18 ), isostearic acid (C 18 ), nonadecanoic acid (C 19 ), arachidic acid (C 20 ), behenic acid (C 22 ), and lignoceric acid (C 24 ) can be mentioned.

[0127] In a preferred embodiment, the saturated fatty acid is a branched saturated fatty acid, such as isopalmitic acid (C 16 ), isostearic acid (C 18 ), and mixtures thereof.

[0128] The unsaturated fatty acids include linear unsaturated fatty acids such as myristoleic acid (C 14 ), palmitoleic acid (C 16 ), oleic acid (C18 ), linoleic acid (C 18 ), linolenic acid (C 18 ), elaidic acid (C 18 ), arachidonic acid (C 20 ), eicosenoic acid (C 20 ), erucic acid (C 22 ), and nervonic acid (C 24 ) can be mentioned.

[0129] In a preferred embodiment, the unsaturated fatty acid is a linear or branched monounsaturated, preferably a linear monounsaturated fatty acid, such as myristoleic acid (C 14 ), palmitoleic acid (C 16 ), and oleic acid (C 18 ), and mixtures thereof.

[0130] (c) Fatty acids are C8 to C 24 , preferably C 12 ~C 22 It is preferably selected from saturated or unsaturated, straight-chain or branched fatty acids, more preferably selected 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.

[0131] In another preferred embodiment, the (c) fatty acid is C 14 ~C 22 Saturated branched fatty acids and C 14 ~C 22 Linear monounsaturated fatty acid (isopalmitic acid (C 16 ), isostearic acid (C 18 ), myristoleic acid (C 14 ), palmitoleic acid (C 16 ), and oleic acid (C 18 ) etc.), and mixtures thereof.

[0132] In another preferred embodiment, the (c) fatty acid is C 14 ~C 22 Saturated branched fatty acids, such as isopalmitic acid (C16 ), isostearic acid (C 18 ), and mixtures thereof.

[0133] (c) The fatty acid may be in the form of its free acid or its salt. Examples of fatty acid salts include inorganic salts, such as alkali metal salts (sodium salt, potassium salt, etc.) and alkaline earth metal salts (magnesium salt, calcium salt, etc.), as well as organic salts, such as ammonium salts (quaternary ammonium salt, etc.) and amine salts (triethanolamine salt, triethylamine salt, etc.). A single type of fatty acid salt or a combination of different types of fatty acid salts may be used. Furthermore, a combination of one or more fatty acids in the form of a free acid and one or more fatty acids in the form of a salt may be used, and one or more types of salts may also be used.

[0134] The amount of (c) fatty acid in the composition may be 1% by mass or more, preferably 2% by mass or more, and more preferably 3% by mass or more, relative to the total mass of the composition.

[0135] The amount of (c) fatty acid in the composition according to the present invention may be 15% by mass or less, preferably 10% by mass or less, more preferably 7.5% by mass or less, relative to the total mass of the composition.

[0136] The composition according to the present invention may contain (c) a fatty acid in an amount of 1% by mass to 15% by mass, preferably 2% by mass to 10% by mass, and more preferably 3% by mass to 7.5% by mass, relative to the total mass of the composition.

[0137] Without wishing to be bound by theory, it is believed that (a) the cationic polymer, (b) the monovalent non-polymeric acid or its salt, and (c) the fatty acid can form a complex through ionic bonding. The complex can exist at the interface between the aqueous phase and the oily phase, and therefore, the present invention is believed to be able to provide a stable emulsion structure without any surfactant.

[0138] (oil) The composition according to the present invention comprises at least one oil (d). When two or more oils (d) are used, they may be the same or different.

[0139] (d) Oil may constitute the oily phase in the composition according to the invention.

[0140] As used herein, "oil" may refer to a fatty compound or substance that is in the form of a liquid, a paste (non-solid), or a solid at atmospheric pressure (760 mmHg) and room temperature (25°C). As oils, those commonly used in cosmetics can be used alone or in combination. These oils may be volatile or non-volatile.

[0141] Preferably, (d) the oil is in the form of a liquid or paste (non-solid) at atmospheric pressure (760 mmHg) and room temperature (25°C).

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

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

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

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

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

[0147] The ester oil is preferably a saturated or unsaturated, linear or branched C1-C 26 Aliphatic mono- or polyacids and saturated or unsaturated, linear or branched C1-C 26 It is a liquid ester of an aliphatic monoalcohol or polyalcohol, and the total number of carbon atoms in the ester is 10 or more.

[0148] Preferably, in esters of monoalcohols, at least one of the alcohol and acid from which the esters of the present invention are derived is branched.

[0149] Among the monoesters of monoacids and monoalcohols, mention may be made of ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate and isostearyl neopentanoate.

[0150] C4~C 22 Dicarboxylic or tricarboxylic acids and C1-C 22 Esters with alcohols, and monocarboxylic, dicarboxylic or tricarboxylic acids with non-sugar C4-C 26 Esters with dihydroxy, trihydroxy, tetrahydroxy or pentahydroxy alcohols can also be used.

[0151] Mention may be made, inter alia, of diethyl sebacate, isopropyl lauroyl sarcosine, diisopropyl sebacate, bis(2-ethylhexyl) sebacate, diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, bis(2-ethylhexyl) adipate, diisostearyl adipate, bis(2-ethylhexyl) maleate, triisopropyl citrate, triisocetyl citrate, triisostearyl citrate, glyceryl trilactate, glyceryl trioctanoate, trioctyldodecyl citrate, trioleyl citrate, neopentyl glycol diheptanoate and diethylene glycol diisononanoate.

[0152] As ester oil, C6-C 30 of, preferably C 12 ~C 22 Sugar esters and diesters of fatty acids of the following groups can be used. It is recalled that the term "sugar" means an oxygen-bearing hydrocarbon-based compound containing at least four carbon atoms and containing several alcohol functional groups, with or without aldehyde or ketone functional groups. These sugars can be monosaccharides, oligosaccharides, or polysaccharides.

[0153] Examples of suitable sugars that may be mentioned include sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose, as well as derivatives thereof, especially alkyl derivatives, such as methyl derivatives, e.g. methylglucose.

[0154] Sugar esters of fatty acids are in particular those which are formed by the abovementioned sugars with linear or branched, saturated or unsaturated C6-C 30 , preferably C 12 ~C 22 They can be selected from the group comprising esters or mixed esters with fatty acids. When they are unsaturated, these compounds can have 1 to 3 conjugated or non-conjugated carbon-carbon double bonds.

[0155] The esters according to this variant may also be chosen from monoesters, diesters, triesters, tetraesters and polyesters, and mixtures thereof.

[0156] These esters may be, for example, oleate, laurate, palmitate, myristate, behenate, coconut, stearate, linoleate, linolenate, caprate and arachidonic acid esters, or mixtures thereof, such as, inter alia, mixed esters of oleopalmitic acid, oleostearic acid and palmitostearic acid, and pentaerythrityl tetraethylhexanoate.

[0157] More particularly, monoesters and diesters are used, especially the mono- or dioleate, stearate, behenate, oleopalmitate, linoleate, linolenate and oleostearate of sucrose, glucose or methylglucose.

[0158] One example that may be mentioned is the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.

[0159] Examples of preferred ester oils include diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl caprylate / caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylate carbonate, and the like. Examples of the glycerin-based glycerin include glyceryl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrityl tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

[0160] Examples of artificial triglycerides include caprylic / caprylyl glyceride, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, capric / caprylic triglyceride, and capric / caprylic / linolenic triglyceride.

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

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

[0163] These silicone oils may also be organically modified. The organically modified silicones that may be used according to the invention are silicone oils as defined above that contain in their structure one or more organic functional groups that are linked via a hydrocarbon-based group.

[0164] Organopolysiloxanes are defined in detail by Walter Noll, "Chemistry and Technology of Silicones" (1968), Academic Press. They may be volatile or nonvolatile.

[0165] When they are volatile, the silicones are more particularly chosen from those having a boiling point between 60° C. and 260° C., and even more particularly chosen from: (i) Cyclic polydialkylsiloxanes containing 3 to 7, preferably 4 to 5, silicon atoms, such as octamethylcyclotetrasiloxane, sold in particular by Union Carbide under the name Volatile Silicone® 7207 or by Rhodia under the name Silbione® 70045 V2, decamethylcyclopentasiloxane, sold in particular by Union Carbide under the name Volatile Silicone® 7158 and by Rhodia under the name Silbione® 70045 V5, and dodecamethylcyclopentasiloxane, sold by Momentive Performance Materials under the name Silsoft 1217, and mixtures thereof. Mention may also be made of cyclocopolymers of the following type, such as dimethylsiloxane / methylalkylsiloxane of the following formula, such as Silicone Volatile® FZ 3109 sold by Union Carbide:

[0166] [ka]

[0167] Mention may also be made of mixtures of cyclic polydialkylsiloxanes with organosilicon compounds, such as a 50 / 50 mixture of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol, and a mixture of octamethylcyclotetrasiloxane and oxy-1,1'-bis(2,2,2',2',3,3'-hexatrimethylsilyloxy)neopentane. (ii) Contains 2 to 9 silicon atoms and has a density of 5 × 10 at 25 °C -6 m 2 Linear, volatile polydialkylsiloxanes having a viscosity of less than 1 / s. An example is decamethyltetrasiloxane, sold in particular by Toray Silicone under the name SH 200. Silicones belonging to this class are also described in the article published by Todd & Byers, Volatile Silicone Fluids for Cosmetics, Vol. 91, January 1976, pp. 27-32. The viscosity of the silicones is measured at 25°C according to ASTM Standard 445, Appendix C.

[0168] Non-volatile polydialkylsiloxanes can also be used.These non-volatile silicones are more particularly selected from polydialkylsiloxanes, among which polydimethylsiloxanes containing trimethylsilyl end groups can be mentioned mainly.Preferably, the polydialkylsiloxanes are selected from liquid polydialkylsiloxanes, in particular liquid polydimethylsiloxanes (PDMS, dimethicone).

[0169] Among these polydialkylsiloxanes, mention may be made, but is not limited to, the following commercially available products: Silbione® oils of the 47 and 70 047 series or Mirasil® oils sold by the company Rhodia, such as 70 047 V 500 000 oil, oils of the Mirasil® series sold by the company Rhodia; - Dow Corning 200 series oils, e.g., 60,000mm viscosity 2 DC 200 / s, and Viscasil® oils manufactured by General Electric and certain oils of the SF series manufactured by General Electric (SF 96, SF 18).

[0170] Mention may also be made of polydimethylsiloxanes containing dimethylsilanol end groups, known under the name dimethiconol (CTFA), such as the 48 series oils from Rhodia.

[0171] Among the silicones containing aryl groups, mention may be made of polydiarylsiloxanes, especially polydiphenylsiloxanes, and polyalkylarylsiloxanes, such as phenylsilicone oils.

[0172] The phenylsilicone oil may be chosen from phenylsilicones of the following formula:

[0173] [ka]

[0174] (In the formula, R1~R 10 are, independently of one another, saturated or unsaturated, linear, cyclic or branched C1-C 30 Hydrocarbon groups, preferably C1-C 12 a hydrocarbon group, more preferably a C1 to C6 hydrocarbon group, specifically a methyl, ethyl, propyl, or butyl group; m, n, p, and q are each independently an integer of 0 to 900, inclusive, preferably an integer of 0 to 500, inclusive, and more preferably an integer of 0 to 100, inclusive; However, the sum n+m+q is not 0.

[0175] Examples that may be mentioned include products sold under the following names: - Silbione® oils from Rhodia, 70 641 series; Rhodorsil® 70 633 and 763 series oils from Rhodia; - Dow Corning 556 Cosmetic Grade Fluid oil, manufactured by Dow Corning; - PK series silicones from Bayer, e.g. product PK20, Certain oils of the SF series manufactured by General Electric, such as SF 1023, SF 1154, SF 1250 and SF 1265.

[0176] Phenyl silicone oils include phenyl trimethicone (wherein R to R 10 is methyl, p, q and n=0, and m=1).

[0177] The organically modified liquid silicone may contain, inter alia, polyethyleneoxy and / or polypropyleneoxy groups, and examples thereof include silicone KF-6017 proposed by Shin-Etsu Chemical Co., Ltd., and Silwet® L722 and L77 oils manufactured by Union Carbide.

[0178] The hydrocarbon oil may be selected from: - Linear or branched, optionally cyclic C6-C 16 Lower alkanes. Examples that may be mentioned include hexane, undecane, dodecane, tridecane, and isoparaffins, such as isohexadecane, isododecane, and isodecane; and - linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petroleum jelly, polydecene and hydrogenated polyisobutenes, such as Parleam® and squalane.

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

[0180] The term "aliphatic" in aliphatic alcohols refers to a relatively large number of carbon atoms. Thus, alcohols having 4 or more, preferably 6 or more, and more preferably 12 or more carbon atoms are included within the scope of aliphatic alcohols. The aliphatic alcohols may be saturated or unsaturated. The aliphatic alcohols may be linear or branched.

[0181] The aliphatic alcohol may have the structure R—OH, where R is selected from saturated and unsaturated, linear and branched groups containing from 4 to 40 carbon atoms, preferably from 6 to 30 carbon atoms, and more preferably from 12 to 20 carbon atoms. In at least one embodiment, R is selected from C 12 ~C 20 Alkyl groups and C 12 ~C 20 R may be selected from alkenyl groups, which may be substituted or unsubstituted with at least one hydroxyl group.

[0182] Examples of fatty alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, oleyl alcohol, linoleyl alcohol, palmitoleyl alcohol, arachidonyl alcohol, erucyl alcohol, and mixtures thereof.

[0183] Preferably, the fatty alcohol is a saturated fatty alcohol.

[0184] Therefore, fatty alcohols are linear or branched, saturated or unsaturated, C6-C 30 Alcohols, preferably linear or branched, saturated C-C 30 Alcohols, more preferably linear or branched, saturated C 12 ~C 20 The alcohol may be selected from:

[0185] Here, the term "saturated fatty alcohol" refers to an alcohol having a long saturated aliphatic carbon chain. A saturated fatty alcohol is any linear or branched, saturated C6-C 30 Preferably, the alcohol is selected from linear or branched, saturated C6-C aliphatic alcohols. 30 Among fatty alcohols, linear or branched, saturated C 12 ~C 20 Fatty alcohols are preferably used. More preferably, any linear or branched saturated C 16 ~C 20 Fatty alcohols can be used. Even more preferably, branched C 16 ~C 20 Aliphatic alcohols can be used.

[0186] Examples of saturated fatty alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof. In one embodiment, cetyl alcohol, stearyl alcohol, octyldodecanol, hexyldecanol, or mixtures thereof (e.g., cetearyl alcohol) and behenyl alcohol can be used as saturated fatty alcohols.

[0187] According to at least one embodiment, the fatty alcohols used in the compositions according to the invention are preferably chosen from octyldodecanol, hexyldecanol, and mixtures thereof.

[0188] It may be preferred that the (d) oil is selected from ester oils.

[0189] In a preferred embodiment, the (d) oil is selected from 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.

[0190] The amount of (d) oil in the composition according to the present invention may be 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, based on the total mass of the composition.

[0191] The amount of (d) oil in the composition according to the present invention may be 20% by mass or less, preferably 15% by mass or less, more preferably 10% by mass or less, based on the total mass of the composition.

[0192] The amount of (d) oil in the composition according to the present invention may be in the range of 1% to 20% by mass, preferably 2% to 15% by mass, more preferably 3% to 10% by mass, relative to the total mass of the composition.

[0193] (inorganic UV filter) The composition according to the present invention comprises (e) at least one inorganic UV filter. Two or more inorganic UV filters may be used in combination. Thus, a single type of inorganic UV filter or a combination of different types of inorganic UV filters may be used.

[0194] The term "UV" as used herein includes the UV-B region (wavelengths 280-320 nm) and the UV-A region (wavelengths 320-400 nm). Thus, a UV filter refers to any material that has a filtering effect in ultraviolet wavelengths, particularly in the UV-A and UV-B regions.

[0195] The inorganic UV filter (e) used in the present invention may be active in the UV-A and / or UV-B region, and may be insoluble in solvents commonly used in cosmetics, such as water and ethanol, but may be hydrophilic and / or lipophilic.

[0196] The (e) inorganic UV filter is preferably in the form of fine particles having an average (primary) particle diameter in the range of 1 nm to 200 nm, preferably 5 nm to 150 nm, and more preferably 10 nm to 100 nm. The average (primary) particle size or average (primary) particle diameter in this specification refers to the arithmetic mean diameter. Preferably, the (e) inorganic UV filter may have an average primary particle size in the range of 5 nm to 90 nm, preferably 10 nm to 50 nm, and more preferably 10 nm to 30 nm.

[0197] The term "average primary particle size" as used herein refers to the particle size distribution given by the statistical particle size distribution for half of the population, D 50 For example, the volume-average size can be measured using a laser diffraction particle size distribution analyzer, such as a Mastersizer 2000 from Malvern Corp.

[0198] (e) The inorganic UV filter may be selected from the group consisting of silicon carbide, metal oxides which may be coated or uncoated, and mixtures thereof.

[0199] Preferably, the inorganic UV filter (e) is formed of a metal oxide such as titanium dioxide (amorphous or crystalline in rutile and / or anatase form), iron oxide, zinc oxide, zirconium oxide, or cerium oxide, all of which are well-known UV photoprotectors in themselves. Preferably, the inorganic UV filter (e) can be selected from titanium dioxide (TiO2), zinc oxide, and more preferably titanium dioxide.

[0200] The (e) inorganic UV filter may be coated or uncoated. The (e) inorganic UV filter may have at least one coating. The coating may contain at least one compound selected from the group consisting of alumina, silica, aluminum hydroxide, silicone, silane, fatty acid or a salt thereof (e.g., sodium salt, potassium salt, zinc salt, iron salt, or aluminum salt), fatty alcohol, lecithin, amino acid, polysaccharide, protein, alkanolamine, wax (e.g., beeswax), (meth)acrylic polymer, organic UV filter, and (per)fluoro compound.

[0201] The coating preferably comprises at least one organic UV filter, which may be a dibenzoylmethane derivative, such as butyl methoxydibenzoylmethane (avobenzone) and 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol] (methylenebis-benzotriazolyltetramethylbutylphenol), commercially available as "TINOSORB M" by BASF.

[0202] As is known, the silicones in the coating may be organosilicon polymers or oligomers, including linear or cyclic and branched or crosslinked structures of various molecular weights, obtained by polymerization and / or polycondensation of suitable functional silanes, and consisting essentially of main repeating units in which silicon atoms are bonded to one another via oxygen atoms (siloxane bonds) and optionally substituted hydrocarbon groups are bonded directly to said silicon atoms via carbon atoms.

[0203] The term "silicone" also includes the silanes, especially alkylsilanes, required for their preparation.

[0204] The silicone used in the coating can be preferably selected from the group consisting of alkylsilanes, polydialkylsiloxanes, and polyalkylhydrosiloxanes. Even more preferably, the silicone is selected from the group consisting of octyltrimethylsilane, polydimethylsiloxane, and polymethylhydrosiloxane.

[0205] Of course, inorganic UV filters made of metal oxides may also be treated with other surfacing agents, in particular cerium oxide, alumina, silica, aluminum compounds, silicon compounds, or mixtures thereof, before their treatment with silicone.

[0206] The coated inorganic UV filters may be prepared by subjecting the inorganic UV filters to one or more surface treatments of a chemical, electronic, mechanochemical and / or mechanical nature with any of the compounds mentioned above, as well as with polyethylene, metal alkoxides (titanium or aluminum alkoxides), metal oxides, sodium hexametaphosphate, and those shown, for example, in Cosmetics & Toiletries, February 1990, Vol. 105, pp. 53-64.

[0207] The coated inorganic UV filter may be: Titanium oxide coated with silica, such as the product "Sunveil" manufactured by Ikeda Bussan Co., Ltd. Titanium oxide coated with silica and iron oxide, for example, the product "Sunveil F" manufactured by Ikeda Bussan Co., Ltd. Titanium oxide coated with silica and alumina, such as the product "Microtitanium Dioxide MT 500 SA" from Teika Corporation, the product "Tioveil" from Tioxide, and the product "Mirasun TiW 60" from Rhodia; Titanium oxide coated with alumina, such as the products "Tipaque TTO-55(B)" and "Tipaque TTO-55(A)" from Ishihara Sangyo Kaisha, Ltd., and "UVT 14 / 4" from Kemira; Titanium dioxide coated with alumina and aluminum stearate, such as the products "Microtitanium Dioxide MT 100 T, MT 100 TX, MT 100 Z or MT-01" from Teika Corporation, the products "Solaveil CT-10 W" and "Solaveil CT 100" from Uniqema, and the product "Eusolex T-AVO" from Merck; Titanium dioxide coated with alumina and aluminum laurate, such as the product "Microtitanium Dioxide MT 100 S" manufactured by Teika Co., Ltd. Titanium dioxide coated with iron oxide and iron stearate, such as the product "Microtitanium Dioxide MT 100 F" from Teika Co., Ltd. Titanium oxide coated with zinc oxide and zinc stearate, such as the product "BR351" manufactured by Teika Co., Ltd. Titanium dioxide coated with silica and alumina and treated with silicone, such as the products "Microtitanium Dioxide MT 600 SAS", "Microtitanium Dioxide MT 500 SAS", and "Microtitanium Dioxide MT 100 SAS" from Teika Corporation; Titanium dioxide coated with silica, alumina, and aluminum stearate and treated with silicone, such as the product "STT-30-DS" manufactured by Titan Kogyo Co., Ltd.; Titanium dioxide coated with silica and treated with silicone, for example the product "UV-Titan X 195" from the company Kemira, Titanium dioxide coated with alumina and treated with silicone, such as the product "Tipaque TTO-55(S)" from Ishihara Sangyo Kaisha or the product "UV Titan M 262" from Kemira, Titanium oxide coated with triethanolamine, such as the product "STT-65-S" manufactured by Titan Kogyo Co., Ltd. Titanium dioxide coated with stearic acid, such as the product "Tipaque TTO-55(C)" manufactured by Ishihara Sangyo Kaisha, Ltd., or Titanium oxide coated with sodium hexametaphosphate, for example the product "Microtitanium Dioxide MT 150 W" manufactured by Teika Corporation.

[0208] Other silicone-treated titanium dioxide pigments are preferably TiO2 treated with octyltrimethylsilane and having an average individual particle size of 25 to 40 nm, such as that sold by Degussa Silices under the trademark "T 805", TiO2 treated with polydimethylsiloxane and having an average individual particle size of 21 nm, such as that sold by Cardre under the trademark "70250 Cardre UF TiO2Si3", and anatase / rutile TiO2 treated with polydimethylhydrosiloxane and having an average individual particle size of 25 nm, such as that sold by Color Techniques under the trademark "Microtitanium Dioxide USP Grade Hydrophobic".

[0209] Preferably, the following coated TiO2 can be used as coated inorganic UV filters: Stearic acid (and) aluminum hydroxide (and) TiO2, such as the product "MT-100 TV" manufactured by Teika Co., Ltd., with an average primary particle diameter of 15 nm; Butylene glycol (and) hydrated silica (and) TiO2, such as the product "WT-PF02" manufactured by Teika Corporation, with an average primary particle diameter of 10 nm; Dimethicone (and) stearic acid (and) aluminum hydroxide (and) TiO2, such as the product "SA-TTO-S4" manufactured by Miyoshi Kasei Co., Ltd., with an average primary particle diameter of 15 nm; Silica (and) TiO2, such as the product "MT-100 WP" manufactured by Teika Corporation, with an average primary particle diameter of 15 nm; Dimethicone (and) silica (and) aluminum hydroxide (and) TiO2, such as the products "MT-Y02" and "MT-Y-110 M3S" manufactured by Teika Co., Ltd., with an average primary particle diameter of 10 nm; Dimethicone (and) aluminum hydroxide (and) TiO2, such as the product "SA-TTO-S3" manufactured by Miyoshi Kasei Co., Ltd., with an average primary particle diameter of 15 nm; Dimethicone (and) alumina (and) TiO2, for example the product "UV TITAN M170" from Sachtleben, with an average primary particle diameter of 15 nm, and Silica (and) aluminum hydroxide (and) alginate (and) TiO2, such as the product "MT-100 AQ" manufactured by Teika Corporation, with an average primary particle diameter of 15 nm.

[0210] From the viewpoint of UV filtering ability, TiO2 coated with at least one organic UV filter is more preferable. For example, avobenzone (and) stearic acid (and) aluminum hydroxide (and) TiO2, such as the product "HXMT-100ZA" manufactured by Teika Co., Ltd., with an average primary particle diameter of 15 nm, can be used.

[0211] Uncoated titanium dioxide pigments are sold, for example, by Teika Co., Ltd. under the trademark "Microtitanium Dioxide MT500B" or "Microtitanium Dioxide MT600B", by Degussa under the trademark "P 25", by Wacker under the trademark "Oxyde de titane transparent PW", by Miyoshi Kasei Co., Ltd. under the trademark "UFTR", by Tomen under the trademark "ITS" and by Tioxide under the trademark "Tioveil AQ".

[0212] Uncoated zinc oxide pigments are, for example: Marketed under the trademark "Z-cote" by Sunsmart, Inc. Marketed under the trademark "Nanox" by Elementis, and Marketed by Nanophase Technologies under the trademark "Nanogard WCD 2025."

[0213] Coated zinc oxide pigments are, for example: one sold by Toshiba Corporation under the trademark "Oxide Zinc CS-5" (ZnO coated with polymethylhydrosiloxane); Commercially available under the trademark "Nanogard Zinc Oxide FN" by Nanophase Technologies (Finsolv TN, alkyl benzoate (C 12 ~C 15 ) as a 40% dispersion in those sold by Daito Kasei Kogyo Co., Ltd. under the trademarks "Daitopersion Zn-30" and "Daitopersion Zn-50" (dispersions in oxyethylenated polydimethylsiloxane / cyclopolymethylsiloxane containing 30% or 50% nano zinc oxide coated with silica and polymethylhydrosiloxane); those sold under the trademark "NFD Ultrafine ZnO" by Daikin Industries, Ltd. (ZnO coated with a perfluoroalkyl phosphate and perfluoroalkylethyl-based copolymer as a dispersion in cyclopentasiloxane); one marketed by Shin-Etsu Chemical Co., Ltd. under the trademark "SPD-Z1" (ZnO coated with a silicone-grafted acrylic polymer dispersed in cyclodimethylsiloxane); Marketed by ISP under the trademark "Escalol Z100" (alumina-treated ZnO dispersed in an ethylhexyl methoxycinnamate / PVP-hexadecene copolymer / methicone mixture), The one sold by Fuji Pigment Co., Ltd. under the trademark "Fuji ZnO-SMS-10" (ZnO coated with silica and polymethylsilsesquioxane) and the one sold by Elementis under the trademark "Nanox Gel TN" (alkyl benzoate (C) containing hydroxystearic acid polycondensate) 12 ~C 15 ) dispersed at 55% in ZnO).

[0214] Uncoated cerium oxide pigments are sold, for example, by the company Rhone-Poulenc under the trademark "Colloidal Cerium Oxide".

[0215] Uncoated iron oxide pigments are sold, for example, by Arnaud under the trademarks "Nanogard WCD 2002 (FE 45B)", "Nanogard Iron FE 45 BL AQ", "Nanogard FE 45R AQ" and "Nanogard WCD 2006 (FE 45R)" or by Mitsubishi under the trademark "TY-220".

[0216] Coated iron oxide pigments are sold, for example, by Arnaud under the trademarks "Nanogard WCD 2008 (FE 45B FN)", "Nanogard WCD 2009 (FE 45B 556)", "Nanogard FE 45 BL 345" and "Nanogard FE 45 BL" or by BASF under the trademark "Oxyde de fer transparent".

[0217] Mention may also be made of mixtures of metal oxides, in particular mixtures of titanium dioxide and cerium dioxide, such as the equal weight mixture of silica-coated titanium dioxide and silica-coated cerium dioxide sold by Ikeda Bussan Co., Ltd. under the trademark "Sunveil A", and also mixtures of titanium dioxide and zinc dioxide coated with alumina, silica and silicone, such as the product "M 261" sold by Kemira, or mixtures of titanium dioxide and zinc dioxide coated with alumina, silica and glycerol, such as the product "M 211" sold by Kemira.

[0218] Coated inorganic UV filters are preferred because they can enhance the UV filtering effect of inorganic UV filters. In addition, coating can help to distribute the UV filters evenly or homogeneously in the composition according to the present invention and coat on keratinous materials such as skin.

[0219] The amount of (e) inorganic UV filter in the composition according to the present invention may be 1% by weight or more, preferably 3% by weight or more, more preferably 5% by weight or more, relative to the total weight of the composition.

[0220] The amount of (e) inorganic UV filter in the composition according to the present invention may be 25% by weight or less, preferably 20% by weight or less, more preferably 15% by weight or less, relative to the total weight of the composition.

[0221] The amount of (e) inorganic UV filter in the composition according to the present invention may be 1% by mass to 25% by mass, preferably 3% by mass to 20% by mass, and more preferably 5% by mass to 15% by mass, relative to the total mass of the composition.

[0222] (Polyol) The composition according to the present invention may optionally include (f) at least one polyol. 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.

[0223] Within the meaning of the present invention, the term "polyol" should be understood to mean any organic molecule containing at least two free hydroxyl groups. The term "polyol" generally does not include saccharides or their derivatives. Derivatives of saccharides include sugar alcohols obtained by reducing one or more carbonyl groups of a saccharide, and saccharides or sugar alcohols in which one or more hydrogen atoms in one or more hydroxyl groups have been replaced with at least one substituent, such as an alkyl group, a hydroxyalkyl group, an alkoxy group, an acyl group, or a carbonyl group.

[0224] Preferably, the (f) polyol according to the present invention is in liquid form at room temperature.

[0225] The (f) polyol suitable for the present invention may be a saturated or unsaturated, linear, branched or cyclic alkyl-type compound having at least two -OH functional groups, particularly at least three -OH functional groups, more particularly at least four -OH functional groups on the alkyl chain.

[0226] The (f) polyols that are advantageously suitable for formulating the compositions according to the invention are in particular those that present 2 to 32 carbon atoms, preferably 3 to 16 carbon atoms.

[0227] (f) The polyol is a C2-C6 polyol containing at least two hydroxy groups, preferably 2 to 5 hydroxy groups. 12 It may also be a polyol, preferably a C2 to C9 polyol.

[0228] Advantageously, the polyol may be chosen from, for example, ethylene glycol, pentaerythritol, trimethylolpropane, butylene glycol, isoprene glycol, pentylene glycol, hexylene glycol, glycerol, polyglycerols such as glycerol oligomers, for example diglycerol oligomers, polyethylene glycol, and mixtures thereof.

[0229] (f) The polyol may be chosen from linear or branched, preferably linear, polyols having from 2 to 9 carbon atoms, and may include, inter alia: diols such as hexylene glycol, propylene glycol, pentylene glycol, isoprene glycol, caprylyl glycol, diethylene glycol and butylene glycol, and - triols such as glycerol (glycerin), and mixtures thereof.

[0230] According to a preferred embodiment of the present invention, the (f) polyol is selected from butylene glycol, pentylene glycol, isoprene glycol, glycerol, polyglycerol, polyethylene glycol, and mixtures thereof.

[0231] According to a more preferred embodiment, the (f) polyol is selected from diols, preferably C2 to C9 diols, for example, C3 to C8 diols or C4 to C6 diols, for example, butylene glycol, pentylene glycol, and mixtures thereof.

[0232] According to certain embodiments, the composition of the present invention may comprise at least two types of (f) polyol. In certain embodiments, the composition comprises a combination of different types of (f) polyol.

[0233] According to certain embodiments, the compositions of the present invention may comprise at least two types of diols. In certain embodiments, the compositions comprise a combination of different types of diols.

[0234] In one preferred embodiment, the composition according to the invention comprises at least one diol having 5 to 9 carbon atoms, for example 5 to 8 or 5 to 6 carbon atoms, such as hexylene glycol, pentylene glycol, and caprylyl glycol.

[0235] According to yet another specific embodiment, the composition of the present invention can comprise at least one diol having 2 to 4 carbon atoms and at least one diol having 5 to 9 carbon atoms. In yet another specific embodiment, the composition comprises a combination of at least one diol having 2 to 4 carbon atoms and at least one diol having 5 to 9 carbon atoms.

[0236] The amount of (f) polyol in the composition according to the present invention may be 2% by mass or more, preferably 3% by mass or more, and more preferably 4% by mass or more, based on the total mass of the composition.

[0237] The amount of (f) polyol in the composition according to the present invention may be 25% by mass or less, preferably 20% by mass or less, more preferably 15% by mass or less, based on the total mass of the composition.

[0238] The amount of (f) polyol in the composition according to the present invention may be in the range of 2% by mass to 25% by mass, preferably 3% by mass to 20% by mass, more preferably 4% by mass to 15% by mass, relative to the total mass of the composition.

[0239] In another embodiment, the amount of (f) polyol in the composition according to the present invention may be 5% by mass or more, preferably 6.5% by mass or more, and more preferably 8% by mass or more, relative to the total mass of the composition.

[0240] In another embodiment, the amount of (f) polyol in the composition according to the present invention may be in the range of 5% by mass to 25% by mass, preferably 6.5% by mass to 20% by mass, and more preferably 8% by mass to 15% by mass, relative to the total mass of the composition.

[0241] In some embodiments of the present invention, the composition comprises a diol having 5 to 9 carbon atoms in an amount of 1% by weight or more, preferably 3% by weight or more, and more preferably 5% by weight or more, based on the total weight of the composition.

[0242] In some embodiments of the present invention, the composition comprises a diol having 5 to 9 carbon atoms in an amount of 20% by weight or less, preferably 15% by weight or less, and more preferably 10% by weight or less, based on the total weight of the composition.

[0243] In some embodiments of the present invention, the amount of diol having 5 to 9 carbon atoms may range from 1% to 20% by weight, preferably from 3% to 15% by weight, and more preferably from 5% to 10% by weight, relative to the total weight of the composition.

[0244] (Optional Ingredients) ·water The composition according to the present invention may comprise water.

[0245] Water can form the aqueous phase in the compositions of the present invention.

[0246] The amount of water in the composition may be 35% by weight or more, preferably 50% by weight or more, more preferably 60% by weight or more, based on the total weight of the composition.

[0247] The amount of water in the composition may be up to 90% by weight, preferably up to 80% by weight, more preferably up to 75% by weight, based on the total weight of the composition.

[0248] The amount of water in the composition may be in the range of 35% to 90% by mass, preferably 50% to 80% by mass, and more preferably 60% to 75% by mass, relative to the total mass of the composition.

[0249] Oil-soluble organic UV filters The composition according to the present invention may contain at least one oil-soluble organic UV filter.Two or more types of oil-soluble organic UV filters can be used in combination.Therefore, a single type of oil-soluble organic UV filter or a combination of different types of oil-soluble organic UV filters can be used.

[0250] The term "oil-soluble" is in this context interchangeable with liposoluble. Oil-soluble organic UV filters may be present in the oily phase of the composition according to the invention.

[0251] The term "oil-soluble UV filter" is used herein to mean a UV filter that is soluble in water at room temperature (25°C) and atmospheric pressure (10 5 In Pa), it represents a UV filter that is soluble in the oil at a concentration of at least 1% by weight, for example 5% or 10% by weight, relative to the total weight of the oil.

[0252] The term "UV" as used herein includes the UV-B region (wavelengths 280-320 nm) and the UV-A region (wavelengths 320-400 nm). Thus, a UV filter refers to any material that has a filtering effect in ultraviolet wavelengths, particularly in the UV-A and UV-B regions.

[0253] The UV filters used for the present invention may be active in the UV-A and / or UV-B range, preferably in each of the UV-A and UV-B ranges, alone or in combination. Thus, UV filters for use in the present invention include UV-A filters capable of absorbing UV radiation in the range of 320 to 400 nm, UV-B filters capable of absorbing UV radiation in the range of 280 to 320 nm, and UV-A and UV-B filters capable of absorbing UV radiation in the range of 280 to 400 nm.

[0254] The oil-soluble organic UV filters may be solid or liquid. The terms "solid" and "liquid" refer to the oil-soluble organic UV filters at room temperature (25°C) and atmospheric pressure (10 5 Preferably, the oil-soluble organic UV filter is a solid or liquid at room temperature (25°C) and atmospheric pressure (10 5 It is a solid at 100 Pa.

[0255] Oil-soluble organic UV-A filters for use in the present invention may include, but are not limited to, aminobenzophenone compounds, dibenzoylmethane compounds, anthranilic acid compounds, and 4,4-diarylbutadiene compounds.

[0256] The aminobenzophenone compound may be n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, an alternative name of which is diethylaminohydroxybenzoylhexylbenzoate (DHHB) sold by BASF under the trade name "Uvinul A+."

[0257] Examples of dibenzoylmethane compounds include 4-isopropyldibenzoylmethane sold by Merck under the name "Eusolex 8020," 1-(4-methoxy-1-benzofuran-5-yl)-3-phenylpropane-1,3-dione and 1-(4-(tert-butyl)phenyl)-3-(2-hydroxyphenyl)propane-1,3-dione sold by Quest under the name "Pongamol," and butylmethoxydibenzoylmethane sold by Hoffmann-La Roche under the trade name "Parsol 1789."

[0258] Mention may be made as an anthranilic acid compound of menthyl anthranilate sold under the name "NEO HELIPAN MA" by Symrise.

[0259] 4,4-diarylbutadiene compounds include 1,1-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene, and diphenylbutadiene malonate and malononitrile.

[0260] Oil-soluble organic UV-B filters for use in the present invention include, but are not limited to, triazine compounds, para-aminobenzoic acid compounds, salicylic acid compounds, cinnamate compounds, β,β-diphenylacrylate compounds, benzylidene camphor compounds, phenylbenzimidazole compounds, imidazoline compounds, benzalmalonate compounds, and merocyanine compounds.

[0261] Examples of triazine compounds include ethylhexyl triazone sold by BASF under the name "UVINUL T-150," diethylhexylbutamido triazone sold by SIGMA 2V under the name "UVASORB HEB," 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, 2,4,6-tris(diisobutyl 4'-aminobenzalmalonate)-s-triazine, 2,4-bis(dineopentyl 4'-aminobenzalmalonate)-6-(n-butyl 4'-aminobenzoate)-s-triazine, and 2,4-bis(n-butyl 4'-aminobenzoate)-6-(aminopropyltrisiloxane)-s-triazine.

[0262] Para-aminobenzoic acid derivatives include para-aminobenzoates (PABA), such as ethyl PABA (para-aminobenzoate), ethyl dihydroxypropyl PABA, and ethylhexyl dimethyl PABA, commercially available from ISP under the name "ESCALOL 5972."

[0263] Salicylic acid compounds include homosalate, sold under the name "Eusolex HMS" by Rona / EM Industries, and ethylhexyl salicylate, sold under the name "NEO HELIOPAN OS" by Symrise.

[0264] Examples of cinnamate compounds include ethylhexyl methoxycinnamate, isopropyl ethoxycinnamate, sold under the name "PARSOL CX" by DSM NUTRITIONAL PRODUCTS, isoamyl methoxycinnamate, diisopropyl methyl cinnamate, cinoxate, and glyceryl ethylhexanoate dimethoxycinnamate, sold under the name "NEO HELIOPAN E 1000" by Symrise.

[0265] Mention may be made, as β,β-diphenylacrylate compounds, of octocrylene, sold under the name "UVINUL N539" by the company BASF, and etocrylene, sold under the name "UVINUL N35" by the company BASF.

[0266] Examples of benzylidene camphor compounds include 3-benzylidene camphor commercially available from CHIMEX under the name "MEXORYL SD," methylbenzylidene camphor commercially available from MERCK under the name "EUSOLEX 6300," polyacrylamide methylbenzylidene camphor commercially available from CHIMEX under the name "MEXORYL SW," and terephthalylidene dicamphorsulfonic acid commercially available from Chimex under the name "Mexoryl SX."

[0267] Among the phenylbenzimidazole compounds that may be mentioned are phenylbenzimidazole sulfonic acid sold under the name "Eusolex 232" by Merck, and disodium phenyldibenzimidazole tetrasulfonate sold under the name "Neo Heliopan AP" by Haarmann and Reimer.

[0268] An example of an imidazoline compound that may be mentioned is dimethoxybenzylidene dioxoimidazoline ethylhexyl propionate.

[0269] Benzalmalonate compounds include polyorganosiloxanes containing benzalmalonate moieties, such as polysilicone-15 sold under the name "Parsol SLX" by DSM NUTRITIONAL PRODUCTS, and di-neopentyl 4'-methoxybenzalmalonate.

[0270] The oil-soluble organic UV filters of the present invention may include oil-soluble organic UV-A filters and UV-B filters covering the UV-A and UV-B regions. The following are non-limiting examples of oil-soluble organic UV-A and UV-B filters: benzophenone compounds, such as benzophenone-1 sold under the name "UVINUL 400" by BASF, benzophenone-2 sold under the name "UVINUL 500" by BASF, benzophenone-3 or oxybenzone sold under the name "UVINUL M40" by BASF, benzophenone-6 sold under the name "Helisorb 11" by Norquay, benzophenone-8, benzophenone-10, benzophenone-11 and benzophenone-12 sold under the name "Spectra-Sorb UV-24" by American Cyanamid, benzotriazole compounds, such as drometrizole trisiloxane sold under the name "Silatrizole" by the company Rhodia Chimie, bumetrizole sold under the name "TINOGUARTD AS" by the company CIBA-GEIGY, and phenylbenzotriazole derivatives: branched and linear 2-(2H-benzotriazol-2-yl)-6-dodecyl-4-methylphenone, bis-resorcinyltriazine compounds, such as bis-ethylhexyloxyphenol methoxyphenyl triazine sold under the name "TINOSORB S" by the company CIBA-GEIGY, and benzoxazole compounds, such as 2,4-bis[5-(1-dimethylpropyl)benzoxazol-2-yl(4-phenyl)imino]-6-(2-ethylhexyl)imino-1,3,5-triazine sold under the name "Uvasorb K2A" by the company Sigma 3V.

[0271] Preferably, the oil-soluble organic UV filter may be selected from aminobenzophenone compounds such as diethylaminohydroxybenzoylhexylbenzoate (DHHB), dibenzoylmethane compounds such as butylmethoxydibenzoylmethane, triazine compounds such as ethylhexyl triazone, salicylic acid compounds such as homosalate, β,β-diphenylacrylate compounds such as octocrylene, and benzotriazole compounds such as drometrizole trisiloxane, and mixtures thereof.

[0272] 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.

[0273] Therefore, in another embodiment of the present invention, the oil-soluble organic UV filter comprises at least one oil-soluble organic UV-A filter selected from aminobenzophenone compounds and dibenzoylmethane compounds, and at least one oil-soluble organic UV-B filter selected from triazine compounds, salicylic acid compounds, β,β-diphenylacrylate compounds, and benzotriazole compounds.

[0274] Alternatively, in one 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.

[0275] In another preferred embodiment of the present invention, the oil-soluble organic UV filter comprises at least one oil-soluble organic UV filter selected from benzophenone compounds, benzotriazole compounds, bis-resorcinyltriazine compounds, and benzoxazole compounds.

[0276] 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.

[0277] The amount of oil-soluble organic UV filter in the composition according to the invention may be at least 0.5% by weight, preferably at least 1% by weight, more preferably at least 2% by weight, relative to the total weight of the composition.

[0278] The amount of oil-soluble organic UV filters in the composition according to the invention may be up to 15% by weight, preferably up to 10% by weight, more preferably up to 7.55% by weight, relative to the total weight of the composition.

[0279] The amount of oil-soluble organic UV filter in the composition according to the present invention may range from 0.5% to 15% by weight, preferably from 1% to 10% by weight, more preferably from 2% to 7.55% by weight, relative to the total weight of the composition.

[0280] Surfactants The compositions according to the invention may comprise, as an optional component, at least one surfactant, which may be chosen from amphoteric, anionic, cationic or nonionic surfactants, used alone or in mixtures.

[0281] Preferably, the surfactant is chosen from non-ionic surfactants, so that the composition according to the invention may comprise at least one non-ionic surfactant.

[0282] Examples of nonionic surfactants that can be used in the compositions of the invention include polyethoxylated or polyglycerolated fatty alcohols, such as ethylene oxide adducts of lauryl alcohol, especially those containing 9 to 50 oxyethylene units (INCI names: laureth-9 to laureth-50), in particular laureth-9; esters of polyols with fatty acids having a saturated or unsaturated chain containing, for example, 8 to 24 carbon atoms, and their oxyalkylenated derivatives, i.e. those containing oxyethylene and / or oxypropylene units, such as esters of glycerol with C8 to C6 fatty acids. 24Esters of fatty acids and their oxyalkylenated derivatives, in particular polyoxyethylenated glyceryl stearates (mono-, di- and / or tri-stearates), such as PEG-20 glyceryl triisostearate; 24 Esters with fatty acids and their oxyalkylenated derivatives, e.g., C8-C 24 Polyethoxylated sorbitol esters of fatty acids, in particular polysorbate 80, such as the product sold under the name "TWEEN 80" by Croda; sugars and C8-C 24 Ethers with fatty alcohols, such as caprylyl / capryl glucoside; polyoxyethylene alkyl ethers; polyoxyethylene oxypropylene alkyl ethers; fatty acid alkanolamides; alkylamine oxides; alkyl polyglycosides and silicone surfactants, such as polydimethylsiloxanes containing oxyethylene and / or oxypropylene groups, e.g., 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, especially those containing 10 to 22 carbon atoms. and those having an alkyl group 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 polyglyceryl fatty acid esters, such as polyglyceryl-4 caprate, polyglyceryl-6 dicaprate, polyglyceryl-6 dioleate, polyglyceryl-6 caprylate, polyglyceryl-2 oleate, and polyglyceryl-6 polyricinoleate; and mixtures thereof.

[0283] Additionally, the nonionic surfactant may include alkyl polyglycosides represented by the following general formula (1): R(O)(G) x (1) (wherein R represents a branched and / or unsaturated alkyl group containing 14 to 24 carbon atoms, G represents a reducing sugar containing 5 or 6 carbon atoms, x has a value ranging from 1 to 10, preferably from 1 to 4, and G represents, in particular, glucose, fructose, or galactose). Alkyl polyglycosides of this type include alkyl polyglucosides (G = glucose in formula (I)), in particular compounds of formula (I) in which R is more particularly an oleyl group (an unsaturated C 18 group) or isostearyl group (saturated C 18 Examples of suitable alkyl polyglucosides include those in which G is a hydroxy group, G is glucose, and x is a value between 1 and 2, in particular isostearyl glucoside, oleyl glucoside, and mixtures thereof. These alkyl polyglucosides can be used in admixture with a coemulsifier, more specifically with a fatty alcohol, in particular with a fatty alcohol having the same fatty chain as the alkyl polyglucoside, i.e., 14 to 24 carbon atoms, and having a branched and / or unsaturated chain, such as isostearyl alcohol if the alkyl polyglucoside is isostearyl glucoside, or with oleyl alcohol if the alkyl polyglucoside is oleyl glucoside. For example, a mixture of isostearyl glucoside and isostearyl alcohol sold by Seppic under the name Montanov WO 18, and also a mixture of octyldodecanol and octyldodecyl xyloside sold by Seppic under the name Fludanov 20X, can be used.

[0284] When the composition according to the present invention comprises a surfactant, the amount of surfactant may be greater than 0% by weight relative to the total weight of the composition.

[0285] The present invention may be characterized in that a stable emulsion composition containing dispersed powder can be achieved with a small amount of surfactant or no surfactant at all. A small amount of surfactant can contribute to improved substantivity and a light texture of the composition. Therefore, the amount of surfactant 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, based on the total weight of the composition. However, the emulsion composition according to the present invention may contain a surfactant, which can contribute to the enhanced water resistance of the present invention.

[0286] In yet another embodiment, the composition according to the invention does not contain anionic and / or cationic surfactants. In yet another embodiment, the composition according to the invention does not comprise any surfactants.

[0287] Adjuvants The compositions according to the invention may also contain various adjuvants conventionally used in compositions for sun care products, which may be chosen from physiologically and / or cosmetically acceptable organic solvents, anionic, nonionic, amphoteric, zwitterionic polymers or mixtures thereof, antioxidants, neutralizing agents, alkaline agents, sequestering agents, buffers, fragrances, emollients, dispersants, dyes and / or pigments, film-forming agents, thickeners, ceramides, preservatives, co-preservatives, and opacifiers.

[0288] The adjuvant 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.

[0289] According to a preferred embodiment, the composition according to the invention comprises, relative to the total weight of the composition: (a) 0.8% to 10% by weight of at least one cationic polymer selected from polyamines; (b) 0.5% by mass to 5% by mass of at least one monovalent non-polymeric acid or salt thereof selected from hydroxy acids and salts thereof; (c) 1% by mass to 15% by mass of C8 to C 24 , preferably C 12 ~C 22 at least one fatty acid selected from saturated or unsaturated, linear or branched fatty acids, (d) 1% by mass to 20% by mass of at least one oil selected from ester oils; (e) 1% to 25% by weight of at least one inorganic UV filter selected from coated or uncoated titanium dioxide, iron oxide, zinc oxide, zirconium oxide, and cerium oxide; and (f) 1% to 20% by mass of at least one polyol selected from C2 to C9 diols.

[0290] 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 at least one cationic polymer selected from chitosan, polylysine, and mixtures thereof, in particular chitosan; (b) 1% by mass to 15% by mass of at least one monovalent non-polymeric acid or salt thereof selected from lactic acid, glycolic acid, and salts thereof; (c) 3% by mass to 7.5% by mass of C 14 ~C 22 Saturated branched fatty acids and C 14 ~C 22 Linear monounsaturated fatty acid (isopalmitic acid (C 16 ), isostearic acid (C 18 ), myristoleic acid (C 14 ), palmitoleic acid (C 16 ), and oleic acid (C 18 ) and the like), and mixtures thereof; (d) 3% to 10% by weight of at least one oil selected from 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; (e) 5% to 15% by weight of at least one inorganic UV filter selected from coated titanium dioxide, and (f) 4% to 15% by weight of at least one polyol comprising at least one diol having 2 to 4 carbon atoms and at least one diol having 5 to 9 carbon atoms.

[0291] [Preparation] The composition according to the present invention can be prepared by mixing the essential components (a) to (f) as well as the optional components explained above.

[0292] The method and means for mixing the above essential components and optional components are not limited. Any conventional method and means can be used to mix the above essential components and optional components to prepare the composition according to the present invention. If necessary, the components may be heated during the preparation of the composition.

[0293] In particular, in one embodiment, the emulsion composition according to the present invention can be prepared by separately preparing an aqueous phase containing (a) a cationic polymer and (b) a monovalent non-polymeric acid or a salt thereof as essential components, and an oily phase containing (c) an oil, (d) a fatty acid, and (f) a polyol as essential components. The aqueous and oily phases are then mixed and emulsified to prepare an emulsion. (e) An inorganic UV filter is added to the emulsion and dispersed therein to prepare the emulsion composition of the present invention.

[0294] [Beauty method] The present invention also provides The present invention also relates to a cosmetic method for keratinous materials such as the skin, which method comprises the step of applying a composition according to the present invention to the keratinous material.

[0295] The composition according to the present invention can be preferably used as a cosmetic composition, which may be a sun care composition for protecting keratin materials, such as skin, from ultraviolet rays.

[0296] Cosmetic method means herein a non-therapeutic cosmetic method for caring for and / or making up the surface of keratinous materials such as the skin.

[0297] The present invention therefore relates to a cosmetic method for protecting keratinous materials from UV radiation, which comprises at least one step of applying a composition according to the invention to keratinous materials, such as the skin. [Example]

[0298] The present invention will now be described in more detail by way of examples, which should not be construed as limiting the scope of the present invention.

[0299] [Composition] Each of the O / W emulsion compositions according to Examples 1 to 6 (Ex. 1 to Ex. 6) and Comparative Examples 1 to 4 (Comp. Ex. 1 to Comp. Ex. 4) was prepared as described below. First, chitosan, phenoxyethanol, lactic acid, and water (if present) were mixed at 70°C for 15 minutes to obtain a homogeneous aqueous phase. Next, an oily phase was prepared by mixing isostearic acid, dicaprylyl carbonate, pentylene glycol, and butylene glycol (if present). The resulting oily phase was added to the aqueous phase, and the mixture was emulsified by stirring for 15 minutes. Titanium dioxide was added to the resulting oil-in-water emulsion, and the emulsion was dispersed by stirring for 10 minutes to obtain each of the O / W emulsion compositions. The numbers in parentheses for titanium dioxide and silica indicate the average particle size of the powdered components. All figures regarding the amounts of components are based on the "mass %" of the active ingredients.

[0300] "MT-100 Tv" manufactured by Teika Corporation was used as titanium dioxide having an average primary particle diameter of 15 nm in Examples 1 and 2. "WT-PF02" manufactured by Teika Corporation was used as titanium dioxide having an average primary particle diameter of 10 nm in Examples 3 and 4.

[0301] Stable emulsion compositions were obtained in Examples 1 to 6. In particular, the emulsion compositions of Examples 1, 2, 4, and 5 maintained a single-phase appearance after being left standing for at least one night. On the other hand, precipitation of TiO2 was observed in the emulsion compositions of Comparative Examples 1 to 4 after being left standing for at least one night. This observation was made with the naked eye.

[0302] [evaluation] (Powder dispersibility) After gentle shaking, 1 μl of each composition was taken with a micropipette and placed on a glass slide. The sample was then covered with a cover glass. The dispersion state of the sample between the glass slide and the glass cover was visually observed, and the dispersibility of the titanium dioxide powder was evaluated according to the following criteria: 5: Highly decentralized 4: Well distributed 3: Well distributed 2: Clot formation 1: Highly agglomerated

[0303] The results are shown in Tables 1 and 2 below.

[0304] [Table 1]

[0305] [Table 2]

[0306] As can be seen from the evaluation results in Table 1 and Table 2, the emulsion compositions according to Examples 1 to 6, which contained combinations of components (a) to (f), were able to produce titanium dioxide that was well dispersed in the composition.

[0307] On the other hand, in the compositions according to Comparative Examples 1 to 4, which did not contain the (a) cationic polymer or (f) polyol of the present invention, powder aggregation was observed.

[0308] Therefore, it can be concluded that the emulsion composition according to the present invention is highly preferable as a cosmetic composition, particularly as a suncare cosmetic composition.

Claims

1. (a) at least one cationic polymer in an amount of 0.8% by weight or more, based on the total weight of the composition; (b) at least one monovalent non-polymeric acid or salt thereof; (c) at least one oil; (d) at least one fatty acid; (e) at least one inorganic UV filter, and (f) at least one polyol An emulsion composition comprising:

2. The composition of claim 1, wherein the (a) cationic polymer is selected from polyamines.

3. 3. The composition according to claim 1, wherein the (a) cationic polymer is selected from chitosan, polylysine, and mixtures thereof, preferably chitosan.

4. The composition according to any one of claims 1 to 3, wherein the (b) monovalent non-polymeric acid or salt thereof is selected from hydroxy acids and salts thereof, preferably lactic acid, glycolic acid, and salts thereof.

5. The fatty acid (c) is C 8 ~C 24 , preferably C 12 ~C 22 5. The composition according to claim 1, wherein the fatty acid is selected from saturated or unsaturated, straight or branched chain fatty acids.

6. The fatty acid (c) is C 14 ~C 22 Saturated branched fatty acids and C 14 ~C 22 Linear monounsaturated fatty acid (isopalmitic acid (C 16 ), isostearic acid (C 18 ), myristoleic acid (C 14 ), palmitoleic acid (C 16 ), and oleic acid (C 18 6. The composition according to claim 1, wherein the hydroxybenzoate is selected from the group consisting of hydroxybenzoates, ...

7. 7. The composition of claim 1, 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.

8. 8. The composition according to claim 1, wherein the (e) inorganic UV filter is selected from coated or uncoated titanium dioxide, iron oxide, zinc oxide, zirconium oxide, and cerium oxide, preferably from coated titanium dioxide.

9. The (f) polyol is C 2 ~C 9 9. The composition according to claim 1, wherein the diol is selected from the group consisting of diols.

10. The composition according to any one of claims 1 to 9, wherein the (f) polyol comprises at least one diol having 5 to 9 carbon atoms.

11. The composition according to any one of claims 1 to 10, wherein the (f) polyol comprises at least one diol having 2 to 4 carbon atoms and at least one diol having 5 to 9 carbon atoms.

12. 12. The composition according to any one of claims 1 to 11, wherein the (a) cationic polymer is present in an amount ranging from 0.8% to 10% by weight, preferably from 0.9% to 7.5% by weight, more preferably from 1% to 5% by weight, relative to the total weight of the composition.

13. 13. The composition according to any one of claims 1 to 12, wherein the (f) polyol is present in an amount ranging from 2% to 25% by weight, preferably from 3% to 20% by weight, and more preferably from 4% to 15% by weight, relative to the total weight of the composition.

14. 14. The composition according to any one of claims 1 to 13, comprising no more than 1% by weight of surfactant, preferably no more than 0.5% by weight, more preferably no more than 0.1% by weight, relative to the total weight of the composition, or no surfactant at all.

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

Images