Dual-phase sunscreen composition

Abstract

The present invention relates to a two-phase composition comprising an aqueous phase and an oil phase, wherein the composition comprises: (a) at least one organic UV filter, (b) at least one first polyglycerol fatty acid ester having an HLB value greater than 8, (c) at least one second polyglycerol fatty acid ester having an HLB value of 8 or less, (d) at least one powder and (e) water. The composition can be used as a sunscreen composition.

Description

Technical Field

[0001] The present invention relates to sunscreen compositions for keratinous materials such as the skin, in particular to sunscreen cosmetic compositions in dual-phase form. Background Art

[0002] For sunscreen products, good UV protection is one of the key functions. In addition, in order to meet consumer preferences, it is preferred that sunscreen products provide good texture.

[0003] Dual-phase compositions comprising an aqueous phase and an oil phase have an advantage in their usability due to their low viscosity. In addition, they have another advantage in their appearance because they do not show a whitish appearance like emulsion compositions.

[0004] There remains a need for sunscreen compositions in dual phase format having better UV protection properties and providing a good texture. Summary of the invention

[0005] The object of the present invention is to provide a dual-phase sunscreen composition having good UV protection properties and providing a good texture.

[0006] The above objects can be achieved by a two-phase composition comprising an aqueous phase and an oily phase, wherein the composition comprises:

[0007] (a) at least one organic UV filter,

[0008] (b) at least one first polyglycerol fatty acid ester having an HLB value greater than 8,

[0009] (c) at least one second polyglycerol fatty acid ester having an HLB value of 8 or less,

[0010] (d) at least one powder, and

[0011] (e) Water.

[0012] The (a) organic UV filters may comprise at least one lipophilic organic UV filter and at least one hydrophilic UV filter.

[0013] The total amount of (b) the first polyglycerol fatty acid ester and (c) the second polyglycerol fatty acid ester may be 0.1 wt % or more, preferably 0.2 wt % or more, more preferably 0.4 wt % or more, and even more preferably 0.6 wt % or more, and may be 2 wt % or less, preferably 1.8 wt % or less, more preferably 1.6 wt % or less, and even more preferably 1.4 wt % or less, relative to the total weight of the composition.

[0014] The weight ratio of the amount of (b) the first polyglycerol fatty acid ester / (c) the second polyglycerol fatty acid ester may be 1 or more, preferably 1.5 or more, more preferably 2 or more, and even more preferably 2.5 or more, and may be 10 or less, preferably 8 or less, more preferably 6 or less, and even more preferably 4 or less.

[0015] (d) The powder may be a hydrophilic or water-dispersible powder.

[0016] (d) The powder may comprise silicon dioxide powder or cellulose powder.

[0017] The (d) powder may have an average particle size of 50 μm or less, preferably 20 μm or less, and more preferably 10 μm or less, and 0.2 μm or more, preferably 0.5 μm or more, and more preferably 1 μm or more.

[0018] The amount of (a) organic UV filters may be 5 wt % or more, preferably 10 wt % or more, more preferably 15 wt % or more, and even more preferably 20 wt % or more, and may be 50 wt % or less, preferably 45 wt % or less, more preferably 40 wt % or less, and even more preferably 35 wt % or less, relative to the total weight of the composition.

[0019] The amount of (d) powder may be 0.01 wt % or more, preferably 0.1 wt % or more, more preferably 0.2 wt % or more, and even more preferably 0.5 wt % or more, and may be 10 wt % or less, preferably 8 wt % or less, more preferably 6 wt % or less, and even more preferably 5 wt % or less, relative to the total weight of the composition.

[0020] The weight ratio of water phase / oil phase may be 1 or higher, preferably 1.5 or higher, more preferably 2 or higher, and even more preferably 2.5 or higher.

[0021] The composition according to the present invention may contain a cationic, anionic, nonionic, amphoteric or zwitterionic surfactant or emulsifier different from (b) the first polyglycerol fatty acid ester and (c) the second polyglycerol fatty acid ester in an amount of 3 wt % or less, preferably 2 wt % or less, and more preferably 1 wt % or less, relative to the total amount of the composition, or may not contain any kind of surfactant or emulsifier different from (b) the first polyglycerol fatty acid ester and (c) the second polyglycerol fatty acid ester.

[0022] The composition according to the invention may comprise inorganic UV filters in an amount of 3 wt % or less, preferably 2 wt % or less and more preferably 1 wt % or less, relative to the total amount of the composition, or may be free of any kind of inorganic UV filters.

[0023] The composition according to the invention may be a biphasic composition having, at rest, two layers, an aqueous phase and an oily phase.

[0024] The invention also relates to a cosmetic method for keratinous materials such as the skin, comprising the step of applying to the keratinous materials a composition according to the invention.

[0025] The invention also relates to a product comprising a container and a nozzle, wherein the container comprises a composition according to the invention.

[0026] Best Mode for Carrying Out the Invention

[0027] After diligent research, the inventors have found that a dual-phase composition of an aqueous phase and an oil phase comprising at least one organic UV filter, at least one first polyglycerol fatty acid ester having an HLB value greater than 8, at least one second polyglycerol fatty acid ester having an HLB value of 8 or less, at least one powder and water can provide good UV protection properties and texture.

[0028] The composition according to the invention is therefore a two-phase composition comprising an aqueous phase and an oily phase, wherein the composition comprises:

[0029] (a) at least one organic UV filter,

[0030] (b) at least one first polyglycerol fatty acid ester having an HLB value greater than 8,

[0031] (c) at least one second polyglycerol fatty acid ester having an HLB value of 8 or less,

[0032] (d) at least one powder, and

[0033] (e) Water.

[0034] Hereinafter, the composition according to the present invention will be explained in a more detailed manner.

[0035] [Composition]

[0036] The composition according to the present invention may be a cosmetic composition, and preferably a cosmetic composition for keratin substances such as skin. 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 on keratin substances. Here, keratin substances mean materials containing keratin as a main constituent element, and examples thereof include skin, scalp, nails, lips, hair, and the like. In particular, the composition according to the present invention may be a skin sunscreen cosmetic composition for protecting the skin from ultraviolet rays.

[0037] The composition according to the invention has a two-phase form comprising an aqueous or water phase and an oil phase, or an oil phase and a water-in-oil emulsion phase (such as a water-in-oil Pickering emulsion phase). A two-phase composition according to the invention means a composition comprising or consisting of two phases, an aqueous or water phase and an oil phase or an oil phase and an emulsion phase, which phases are visually and / or macroscopically separated at rest.

[0038] The term "aqueous phase" or "water phase" as used herein means a phase that is liquid at room temperature and that contains or consists of hydrophilic, water-soluble or water-dispersible substances.

[0039] The term "oil phase" as used herein means a phase which is liquid at room temperature and which comprises or consists of lipophilic, oil-soluble or oil-dispersible substances.

[0040] The term "water-in-oil emulsion phase" herein means a phase which is liquid at room temperature and comprises a dispersed aqueous phase in an oil phase.

[0041] The two-phase composition according to the invention has two visually distinct layers at rest, each layer consisting of a continuous water phase and a continuous oil phase or a continuous oil phase and a water-in-oil emulsion phase, respectively.

[0042] The oil phase of the present invention preferably has a viscosity of less than 1000 mPa∙s, preferably less than 300 mPa∙s, and more preferably less than 100 mPa∙s at room temperature (25°C). The lower limit of the oil phase viscosity is not limited, but generally speaking, the oil phase has a viscosity of more than 5 mPa∙s at room temperature.

[0043] The viscosity of the aqueous phase of the present invention is not particularly limited. Preferably, the viscosity of the aqueous phase may be in the range of 15 to 40 mPa·s, more preferably 17 to 30 mPa·s at room temperature.

[0044] For viscosity measurement, VISCOMAN™ (GILSON Technology) can be used. The bulk viscosity (mPaS, PaS) is automatically calculated from the required aspiration force in a small pipette (10 μL).

[0045] The composition according to the present invention is intended to be used after each phase is uniformly mixed, for example, by simply shaking it. Since the uniform composition of the present invention has a relatively lower viscosity after mixing, especially a lower viscosity than an emulsion composition, the present invention is advantageous in that it can be easily sprayed in a mist state without using an aerosol device and easily spread on a keratinous substance. Therefore, the composition according to the present invention can be contained in a non-aerosol device, such as a container equipped with a mist generating member such as a mist pump, a spray bottle or a pump bottle.

[0046] The pH of the aqueous phase of the present invention is not particularly limited. The pH of the aqueous phase may be in the range of 3.0 to 9.0, and preferably 4.0 to 8.0. The pH of the aqueous phase of the present invention may be adjusted to a desired value using an acidulant, alkalizer or buffer commonly used in the cosmetics field.

[0047] The inventors of the present invention unexpectedly found that the mixed composition according to the present invention can form a uniform and fine film on a keratinous material such as the skin, especially when applied as a mist. Therefore, the composition can provide an improved UV protection effect. In addition, because the composition according to the present invention can be provided in a mist state, it allows consumers to easily touch up when needed, even after the sunscreen product has been applied once. In addition, the mist product of the present invention can be easily applied to makeup (make-up). In addition, the mist product of the present invention can provide consumers with a comfortable texture, which is completely different from an aerosol spray product.

[0048] In a preferred embodiment of the present invention, the composition according to the present invention comprises a larger amount of water phase than oil phase. In another preferred embodiment of the present invention, the weight ratio of water phase / oil phase may be 1 or more, preferably 1.5 or more, more preferably 2 or more, and even more preferably 2.5 or more.

[0049] The amount of aqueous phase in the composition according to the invention may be 50% by weight or more, preferably 60% by weight or more, and more preferably 70% by weight or more, and may be 90% by weight or less, preferably 85% by weight or less, and more preferably 80% by weight or less, relative to the total weight of the composition.

[0050] The amount of oil phase in the composition according to the invention may be 5% by weight or more, preferably 10% by weight or more, and more preferably 15% by weight or more, and may be 50% by weight or less, preferably 40% by weight or less, and more preferably 30% by weight or less, relative to the total weight of the composition.

[0051] The composition according to the invention comprises (a) at least one organic UV filter, (b) at least one first polyglycerol fatty acid ester having an HLB value greater than 8, (c) at least one second polyglycerol fatty acid ester having an HLB value of 8 or less, (d) at least one powder and (e) water. These ingredients will be described in more detail below.

[0052] (Organic UV filter)

[0053] The composition according to the invention comprises (a) at least one organic UV filter. Two or more organic UV filters may be used in combination. Thus, a single type of organic UV filter or a combination of different types of organic UV filters may be used.

[0054] The term "UV" means here ultraviolet radiation and includes the UV-B region (wavelength 290-320 nm) and the UV-A region (wavelength 320-380 nm). Thus, a UV-B filter means any material that has a filtering effect on ultraviolet radiation having a wavelength in the UV-B region.

[0055] The organic UV filters herein may be liquid or solid. The term "solid" means that the substance is solid at 25° C., 1 atm. The term "liquid" means that the substance is liquid at 25° C., 1 atm.

[0056] The organic UV filters may be hydrophilic and / or lipophilic.In a preferred embodiment, the organic UV filters according to the invention comprise at least one lipophilic organic UV filter and at least one hydrophilic UV filter.

[0057] The term "hydrophilic" as used herein means that a substance is hydrophilic at room temperature (25°C) and atmospheric pressure (10 5 Pa) is soluble in water in a concentration of at least 1% by weight, relative to the total weight of water.

[0058] The term "lipophilic" as used herein means that a substance has a lipophilic property at room temperature (25°C) and atmospheric pressure (10 5 Pa) can be dissolved in the oil in a concentration of at least 1% by weight relative to the total weight of the oil.

[0059] In a preferred embodiment, the organic UV filters according to the invention comprise at least one organic UV-B filter and at least one organic UV-A filter.

[0060] The organic lipophilic UV-B filters used in the present invention may include, but are not limited to, triazine compounds, p-aminobenzoic acid compounds, benzylidene camphor compounds, phenylbenzimidazole compounds, imidazoline compounds, merocyanine compounds, salicylic acid compounds, cinnamate compounds, β,β-diphenylacrylate compounds, benzylidene malonate compounds, and merocyanine compounds.

[0061] As triazine compounds, mention may be made of ethylhexyl triazone, sold under the name “UVINUL T-150” by BASF; diethylhexyl butyramido triazone, sold under the name “UVASORB HEB” by SIGMA 2V; 2,4,6-tris(dineopentyl 4′-aminobenzylidenemalonate)-s-triazine; 2,4,6-tris(diisobutyl 4′-aminobenzylidenemalonate)-s-triazine; 2,4-bis(dineopentyl 4′-aminobenzylidenemalonate)-6-(n-butyl 4′-aminobenzoate)-s-triazine; 2,4-bis(n-butyl 4′-aminobenzoate)-6-(aminopropyltrisiloxane)-s-triazine; and bis-ethylhexyloxyphenol methoxyphenyl triazine, sold under the trademark “TINOSORB S” by Ciba Geigy.

[0062] As para-aminobenzoic acid derivatives, mention may be made of para-aminobenzoic acid esters (PABA), for example ethyl PABA (para-aminobenzoic acid); dihydroxypropyl PABA ethyl ester; and dimethyl PABA ethylhexyl ester, sold under the name “ESCALOL 5972” by ISP; PABA glycerides and PEG-25 PABA, and salts thereof, such as those sold under the name “Uvinul P25” by BASF.

[0063] As benzylidene camphor compounds, mention may be made of 3-benzylidene camphor, sold under the name “MEXORYL SD” by CHIMEX; methylbenzylidene camphor, sold under the name “EUSOLEX 6300” by MERCK; and polyacrylamidomethylbenzylidene camphor, sold under the name “MEXORYL SW” by CHIMEX.

[0064] As the imidazoline compound, there may be mentioned ethylhexyl dimethoxybenzylidene dioxoimidazolinium propionate.

[0065] Mention may be made, as salicylic acid compounds, of homosalate, sold under the name “Eusolex HMS” by Rona / EM Industries, and ethylhexyl salicylate, sold under the name “NEO HELIOPAN OS” by Symrise.

[0066] As cinnamate compounds, mention may be made of ethylhexyl methoxycinnamate, sold under the name "PARSOL CX" by DSM NUTRITIONAL PRODUCTS; isopropyl ethoxycinnamate; isoamyl methoxycinnamate, sold under the name "NEO HELIOPAN E 1000" by Symrise; diisopropyl methylcinnamate; cinoxate; and glyceryl ethylhexanoate dimethoxycinnamate; and DEA methoxycinnamate and its salts.

[0067] Mention may be made, as β,β-diphenylacrylate compounds, of octocrylene, sold under the name “UVINUL N539” by BASF, and of etocorylene, sold under the name “UVINUL N35” by BASF.

[0068] As benzalmalonate compounds, mention may be made of polyorganosiloxanes containing benzalmalonate moieties, for example Polysilicone-15, sold under the name "Parsol SLX" by DSM NUTRITIONAL PRODUCTS; and dineopentyl-4'-methoxybenzalmalonate.

[0069] Organic hydrophilic UV-B filters for use in the present invention may include, but are not limited to, phenylbenzimidazole compounds. As phenylbenzimidazole compounds, mention may be made of phenylbenzimidazole sulfonic acid, sold under the name "Eusolex 232" by Merck; and disodium phenyl dibenzimidazole tetrasulfonate, sold under the name "Neo Heliopan AP" by Haarmann and Reimer.

[0070] Organic lipophilic UV-A filters useful in the present invention may include, but are not limited to, aminobenzophenone compounds, dibenzoylmethane compounds, anthranilic acid compounds, and 4,4-diarylbutadiene compounds, as well as benzoxazole compounds.

[0071] As aminobenzophenone compound, mention may be made of n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, also known as diethylaminohydroxybenzoyl hexyl benzoate (DHHB), sold under the trade name "Uvinul A+" by BASF.

[0072] As dibenzoylmethane compounds, mention may be made of 4-isopropyldibenzoylmethane, sold under the name “Eusolex 8020” by Merck; 1-(4-methoxy-1-benzofuran-5-yl)-3-phenylpropane-1,3-dione, sold under the name “Pongamol” by Quest; 1-(4-tert-butylphenyl)-3-(2-hydroxyphenyl)propane-1,3-dione; and butylmethoxydibenzoylmethane, sold under the trade name “Parsol 1789” by Hoffmann-La Roche.

[0073] Mention may be made, as anthranilic acid compound, of menthol anthranilate, sold under the name “NEOHELIPAN MA” by Symrise.

[0074] As 4,4-diarylbutadiene compounds, there may be mentioned 1,1-dicarboxy(2,2′-dimethylpropyl)-4,4-diphenylbutadiene and diphenylbutadiene malonate and malononitrile.

[0075] The organic hydrophilic UV-A used in the present invention may include but is not limited to:

[0076] - benzylidene camphor compounds, such as terephthalylidene dicamphor sulfonic acid and its salts, such as that manufactured by Chimex under the name "Mexoryl SX",

[0077] - bisbenzoxazolyl derivatives, such as those described in patents EP 669 323 and US Pat. No. 2,463,264, more particularly the compound disodium phenyldibenzimidazole tetrasulfonate and its salts, sold under the trade name "NeoHeliopan AP" by Haarmann and Reimer.

[0078] Salts of the UV filter compounds which can be used are in particular selected from salts of alkali metals such as sodium or potassium; salts of alkaline earth metals such as calcium, magnesium or strontium; metal salts such as zinc, aluminum, manganese or copper; metal salts of the formula NH 4+ quaternary ammonium salts; salts of organic amines, such as methylamine, dimethylamine, trimethylamine, triethylamine, ethylamine, 2-hydroxyethylamine, bis(2-hydroxyethyl)amine or tris(2-hydroxyethyl)amine; lysine or arginine salts.

[0079] In a preferred embodiment of the present invention, (a) organic UV filters comprise triazine compounds such as ethylhexyl triazone; salicylic acid compounds such as homosalate and ethylhexyl salicylate; β,β-diphenylacrylate compounds such as octocrylene; and aminobenzophenone compounds such as diethylaminohydroxybenzoyl hexyl benzoate; phenylbenzimidazole compounds such as phenylbenzimidazole sulfonic acid; and benzylidene camphor compounds such as terephthalylidene dicamphor sulfonic acid; and mixtures thereof.

[0080] In another preferred embodiment of the present invention, (a) the organic UV filter comprises at least one lipophilic organic UV filter selected from the group consisting of triazine compounds such as ethylhexyl triazone; salicylic acid compounds such as homosalate and ethylhexyl salicylate; β,β-diphenylacrylate compounds such as octocrylene; and aminobenzophenone compounds such as diethylaminohydroxybenzoyl hexyl benzoate; and mixtures thereof; at least one hydrophilic organic UV filter selected from the group consisting of phenylbenzimidazole compounds such as phenylbenzimidazole sulfonic acid; and benzylidene camphor compounds such as terephthalylidene dicamphor sulfonic acid; and mixtures thereof.

[0081] The amount of (a) organic UV filters in the composition according to the invention may be 5% by weight or more, preferably 10% by weight or more, more preferably 15% by weight or more and even more preferably 20% by weight or more, and may be 50% by weight or less, preferably 45% by weight or less, more preferably 40% by weight or less and even more preferably 35% by weight or less, relative to the total weight of the composition.

[0082] In one embodiment of the present invention, the amount of lipophilic organic UV filters in the composition according to the invention may be 2% by weight or more, 5% by weight or more, 10% by weight or more, 15% by weight or more, or 20% by weight or more, and may be 40% by weight or less, 35% by weight or less, or 30% by weight or less.

[0083] In one embodiment of the present invention, the amount of hydrophilic organic UV filters in the composition according to the invention may be 1 wt.-% or more, 2 wt.-% or more, 3 wt.-% or more, and may be 20 wt.-% or less, 15 wt.-% or less, or 10 wt.-% or less.

[0084] (First polyglycerol fatty acid ester)

[0085] Composition according to the present invention comprises (b) at least one first polyglycerol fatty acid ester having an HLB value greater than 8.0. Two or more types of second polyglycerol fatty acid esters can be used in combination. Therefore, a single type of second polyglycerol fatty acid ester or a combination of different types of first polyglycerol fatty acid esters can be used.

[0086] (b) The first polyglycerol fatty acid may have an HLB value of 9.0 or more, preferably 10 or more, more preferably 11 or more, even more preferably 12 or more, and particularly 13 or more. (b) The first polyglycerol fatty acid may have an HLB value of 17 or less, preferably 16 or less, and more preferably 15 or less.

[0087] The term HLB ("hydrophile-lipophile balance") is well known to those skilled in the art and reflects the ratio between the hydrophilic and lipophilic parts of a molecule.

[0088] If two or more (b) first polyglycerol fatty acid esters are used, the HLB value is determined by a weighted average of the HLB values ​​of all (b) first polyglycerol fatty acid esters.

[0089] (b) The first polyglycerol fatty acid ester may be selected from mono-, di-, tri- and more polyesters of saturated or unsaturated fatty acids.

[0090] (b) The fatty acid portion of the first polyglycerol fatty acid ester or the fatty acid of the fatty acid portion may include 4 or more carbon atoms, preferably 6 or more carbon atoms, and more preferably 8 or more carbon atoms, and may include 18 or less carbon atoms, preferably 16 or less carbon atoms, and more preferably 14 or less carbon atoms.

[0091] (b) The fatty acid of the fatty acid portion of the first polyglycerol fatty acid ester may be saturated or unsaturated, and may be selected from caprylic acid, capric acid, lauric acid, myristic acid, stearic acid, isostearic acid, and oleic acid.

[0092] Preferably, the (b) first polyglycerol fatty acid ester contains 2 or more glycerol units, preferably 3 or more glycerol units, and more preferably 4 or more glycerol units, and may include 10 or less glycerol units, preferably 8 or less glycerol units, and more preferably 6 or less glycerol units.

[0093] (b) The first polyglycerol fatty acid ester may be selected from PG2 caprate (HLB: 9.5), PG2 laurate (HLB: 8.5), PG4 oleate (HLB: 8.8), PG4 laurate (HLB: 10.3), PG4 isostearate (HLB: 8.2), PG5 laurate (HLB: 10.5), PG6 isostearate (HLB: 10.8), PG10 trilaurate (HLB: 10.4), PG10 distearate (HLB: about 9), PG10 diisostearate (HLB: 10), PG10 dioleate (HLB: about 11), PG10 tricocoate (HLB: 9), PG3 cocoate (HLB: 12), PG3 caprate (HLB: about 14), PG4 caprylate (HLB: 14), PG4 caprate (HLB: 14). : 14), PG5 myristate (HLB: 15.4), PG5 stearate (HLB: 15), PG5 oleate (HLB: 12.2), PG6 caprylate (HLB: 14.6), PG6 caprate (HLB: 13.1), PG6 laurate (HLB: 14.1), PG10 laurate (HLB: 15.2), PG10 myristate (HLB: 14.9), PG10 dimyristate (HLB: 12.3), PG10 stearate (HLB: 14.1), PG10 isostearate (HLB: 13.7), PG10 oleate (HLB: 13.0), PG10 sesquistearate (HLB: 12), PG10 cocoate (HLB: 16), PG10 dicocoate (HLB: 12), and mixtures thereof.

[0094] The amount of (b) the first polyglycerol fatty acid ester in the composition according to the present invention, relative to the total weight of the composition, may be 0.1 wt % or more, preferably 0.2 wt % or more, more preferably 0.3 wt % or more, even more preferably 0.4 wt % or more, and in particular 0.5 wt % or more, and may be 1.6 wt % or less, preferably 1.4 wt % or less, more preferably 1.2 wt % or less, and even more preferably 1.0 wt % or less.

[0095] (Second polyglycerol fatty acid ester)

[0096] The composition according to the present invention comprises (c) at least one second polyglycerol fatty acid ester having an HLB value of 8 or less. Two or more types of second polyglycerol fatty acid esters can be used in combination. Therefore, a single type of second polyglycerol fatty acid ester or a combination of different types of second polyglycerol fatty acid esters can be used.

[0097] (c) The second polyglycerol fatty acid ester may function as a surfactant, particularly a nonionic surfactant.

[0098] (c) The second polyglycerol fatty acid ester has an HLB value of 8 or less. Preferably, (c) the second polyglycerol fatty acid ester has an HLB value of 7.5 or less. (c) The second polyglycerol fatty acid ester may have an HLB value of 3.0 or more, preferably 4.0 or more, more preferably 5.0 or more, even more preferably 6.0 or more, and particularly 7.0 or more.

[0099] If two or more (c) second polyglycerol fatty acid esters are used, the HLB value is determined by a weighted average of the HLB values ​​of all (c) second polyglycerol fatty acid esters.

[0100] (c) The second polyglycerol fatty acid ester may be selected from mono-, di-, tri- and higher polyesters of saturated or unsaturated fatty acids.

[0101] (c) The fatty acid portion of the second polyglycerol fatty acid ester may include 10 or more carbon atoms, preferably 12 or more carbon atoms, more preferably 14 or more carbon atoms, and even more preferably 16 or more carbon atoms, and may include 26 or less carbon atoms, preferably 24 or less carbon atoms, more preferably 22 or less carbon atoms, and even more preferably 20 or less carbon atoms.

[0102] (c) The fatty acid of the fatty acid portion of the second polyglycerol fatty acid ester may be saturated or unsaturated, and may be selected from lauric acid, myristic acid, stearic acid, isostearic acid and oleic acid.

[0103] Preferably, the (c) second polyglycerol fatty acid ester comprises 10 or less glycerol units, preferably 8 or less glycerol units, more preferably 6 or less glycerol units, and even more preferably 4 or less glycerol units.Preferably, the (c) second polyglycerol fatty acid ester comprises 2 glycerol units.

[0104] (c) The second polyglycerol fatty acid ester may be selected from PG2 stearate (HLB: 5.0), PG2 distearate (HLB: 4), PG2 isostearate (HLB: 4.7), PG2 diisostearate (HLB: 3.2), PG2 triisostearate (HLB: 3), PG2 sesquiisostearate (HLB: about 4), PG2 oleate (HLB: 5.5), PG2 sesquioleate (HLB: 5.3), PG3 distearate ... LB: 5), PG3 diisostearate (HLB: 5), PG3 dicocoate (HLB: 7), PG5 hexastearate (HLB: 4.0), PG5 trioleate (HLB: 7.0), PG10 pentaoleate (HLB: 6.4), PG2 sesquioctanoate (HLB: about 8), PG6 distearate (HLB: 8), PG10 tristearate (HLB: 8), PG10 triisostearate (HLB: 8) and mixtures thereof.

[0105] Alternatively, the fatty acid moiety of (c) the second polyglycerol fatty acid ester can be a polymer of saturated or unsaturated fatty acids. If the fatty acid has carboxyl and hydroxyl, the polymer can be a condensation product of a fatty acid that can be formed by the carboxyl or hydroxyl of a kind of fatty acid with the hydroxyl and carboxylic acid reaction of another kind of fatty acid. Therefore, the fatty acid moiety of (b) the first polyglycerol fatty acid ester can be a condensation product of saturated or unsaturated hydroxy acid. In other words, (c) the second polyglycerol fatty acid ester can be a polyglycerol ester of a condensation product of a saturated or unsaturated hydroxy acid, preferably a polyglycerol monoester.

[0106] When the fatty acid portion of the (c) second polyglycerol fatty acid ester is a polymer, the fatty acid portion of the (c) second polyglycerol fatty acid ester may contain 25 or more carbon atoms, preferably 30 or more carbon atoms, and more preferably 35 or more carbon atoms, and may contain 90 or less carbon atoms, preferably 72 or less carbon atoms, and more preferably 54 or less carbon atoms.

[0107] Ricinoleic acid is an example of a hydroxy acid, particularly an unsaturated hydroxy acid, and has a carboxyl group and a hydroxyl group. Therefore, the fatty acid portion of the (c) second polyglycerol fatty acid can be formed by polycondensation of ricinoleic acid to produce polyricinoleic acid ester. Therefore, the (c) second polyglycerol fatty acid ester can be polyglycerol polyricinoleic acid ester (PGPR), i.e., a polyglycerol ester of polyricinoleic acid ester, preferably a polyglycerol monoester.

[0108] (c) The second polyglycerol fatty acid ester may be selected from PG3 polyricinoleate, PG4 polyricinoleate, PG5 polyricinoleate, PG6 polyricinoleate (HLB: 3.5) and mixtures thereof.

[0109] The amount of (c) the second polyglycerol fatty acid ester in the composition according to the present invention may be 0.01 wt % or more, preferably 0.05 wt % or more, more preferably 0.1 wt % or more, and even more preferably 0.15 wt % or more, and may be 1 wt % or less, preferably 0.8 wt % or less, more preferably 0.6 wt % or less, and even more preferably 0.4 wt % or less, relative to the total weight of the composition.

[0110] The total amount of (b) the first polyglycerol fatty acid ester and (c) the second polyglycerol fatty acid ester may be 0.1 wt % or more, preferably 0.2 wt % or more, more preferably 0.4 wt % or more, and even more preferably 0.6 wt % or more, and may be 2 wt % or less, preferably 1.8 wt % or less, more preferably 1.6 wt % or less, and even more preferably 1.4 wt % or less, relative to the total weight of the composition.

[0111] In a preferred embodiment of the present invention, the composition according to the present invention comprises a larger amount of (b) the first polyglycerol fatty acid ester than (c) the second polyglycerol fatty acid ester.

[0112] In another preferred embodiment of the present invention, the weight ratio of the amount of (b) the first polyglycerol fatty acid ester / (c) the second polyglycerol fatty acid ester in the composition may be 1 or more, preferably 1.5 or more, more preferably 2 or more, and even more preferably 2.5 or more, and may be 10 or less, preferably 8 or less, more preferably 6 or less, and even more preferably 4 or less.

[0113] (powder)

[0114] The composition according to the present invention comprises (d) at least one powder. Two or more types of powders may be used in combination. Thus, a single type of powder or a combination of different types of powders may be used.

[0115] The term "powder" should be understood to mean colourless or white mineral or synthetic particles of any shape which are insoluble in the medium of the composition, whatever the temperature at which the composition is manufactured.

[0116] (d) The powder may be in any shape, such as flake, spherical or oblong, regardless of the crystal form (eg, flake, cubic, hexagonal, orthorhombic, etc.).

[0117] (d) The powder may be an inorganic or organic powder, which may or may not be surface-coated.

[0118] (d) The average particle size of the powder is not limited, but is generally 50 μm or less, preferably 20 μm or less, and more preferably 10 μm or less. (d) The average particle size of the powder is 0.2 μm or more, preferably 0.5 μm or more, and more preferably 1 μm or more. The term "average particle size" as used herein represents the number average size mean diameter, which is given by the statistical particle size distribution of half the population (referred to as D50). For example, the number average size mean diameter can be measured by a laser diffraction particle size distribution analyzer (such as Mastersizer 2000 of MalvernCorp).

[0119] It is important to mention that the (d) powder of the present invention may be distinguished from so-called "inorganic UV filters". The (d) powder has no active, substantial UV filtering effect, but it may contribute to the formation of a uniform and fine film on keratinous substances such as the skin by the composition according to the invention. Thus, the (d) powder of the present invention may be distinguished from inorganic UV filters.

[0120] The (d) powder may be hydrophilic or hydrophobic. In a preferred embodiment of the present invention, the (d) powder is hydrophilic or water dispersible.

[0121] As hydrophilic or water-dispersible inorganic powders, there may be mentioned metal oxide powders such as silicon oxide or silicon dioxide, magnesium aluminum silicate, titanium oxide, aluminum oxide, zirconium oxide, magnesium oxide, zinc oxide, cerium oxide, iron oxide and antimony oxide; metal nitride powders such as boron nitride, aluminum nitride; metal hydroxide powders such as aluminum hydroxide, magnesium hydroxide; metal carbonate powders such as calcium carbonate and magnesium hydrogen carbonate; metal sulfide powders such as barium sulfate; metal chloride powders; and mineral fillers such as mica, talc, kaolin, bentone, smectite, hydroxyapatite, halloysite, pyrophyllite, vermiculite, montmorillonite, fluorphlogopite, sericite, calcined talc, calcined mica, calcined sericite, synthetic mica, perlite; and mixtures thereof.

[0122] In a preferred embodiment of the present invention, (d) powder comprises at least one silica or silica-based filler. Silica or silica-based fillers may include hollow silica powder, glass beads, amorphous silica powder, silicates such as aluminosilicates and borosilicates, fumed silica, silica aerosols, precipitated silica and colloidal silica. As hollow silica powder, mention may be made of the hollow silica powder sold under the name BA4 by the company JGC Catalysts and Chemicals.

[0123] The shape of the silica suitable for the present invention may be spherical or non-spherical, and may be porous or non-porous, and is preferably spherical and non-porous.

[0124] As organic powders, mention may be made of acrylic polymer powders, silicone powders such as polyorganosiloxane elastomer powders, wax powders, polyamide powders, urethane polymer powders, tetrafluoroethylene polymer powders, polyacrylonitrile powders, poly-β-alanine powders, polyethylene powders, polytetrafluoroethylene powders, lauroyl lysine, starch, cellulose powders, tetrafluoroethylene polymer powders, and mixtures thereof.

[0125] In particular, as hydrophilic or water-dispersible organic powders, mention may be made of polysaccharide powders such as starch and cellulose powders, and derivatives thereof such as cellulose ethers and cellulose esters, and polyurethane powders.

[0126] As cellulose powder, mention may be made of microcrystalline cellulose, for example the following spherical cellulose powders sold under the names "Cellulobeads D-5", "Cellulobeads D-10" and "Cellulobeads D-30" by Daito Kasei.

[0127] The (d) powder used in the present invention may or may not be pre-coated. One embodiment of the present invention is that the (d) powder is coated with a hydrophilic coating.

[0128] The agent for treating the surface hydrophilicity of the powder is not limited, but for example, amino acids, C1-C5 alkanolamines, silicon oxide (silicon dioxide), sodium hexametaphosphate or glycerin or a mixture thereof, PEG-12 polydimethylsiloxane, sodium glyceryl phosphate, PEG-7 glyceryl cocoate + methylsilanol tri-PEG-8 glyceryl cocoate + polyquaternium-7, chitosan, methoxy PEG-10 propyl trimethoxy silane, PEG / PPG-18 / 18 polydimethylsiloxane, microcrystalline cellulose and polyethylene glycol alkoxy silane can be mentioned.

[0129] In a preferred embodiment of the present invention, (d) powder comprises silicon dioxide powder or cellulose powder.

[0130] The amount of (d) powder in the composition according to the present invention may be 0.01 wt % or more, preferably 0.1 wt % or more, more preferably 0.2 wt % or more, and even more preferably 0.5 wt % or more, and may be 10 wt % or less, preferably 8 wt % or less, more preferably 6 wt % or less, and even more preferably 5 wt % or less, relative to the total weight of the composition.

[0131] (water)

[0132] The composition according to the present invention comprises (e) water. In the present invention, water forms the aqueous phase.

[0133] The amount of water, relative to the total weight of the composition according to the present invention, may be 20% by weight or more, preferably 30% by weight or more, and more preferably 40% by weight or more, and may be 80% by weight or less, preferably 70% by weight or less, and more preferably 60% by weight or less.

[0134] (Other ingredients)

[0135] • Oil

[0136] The composition according to the invention may comprise at least one oil. If two or more oils are used, they may be identical or different.

[0137] Here, "oil" means a fatty compound or substance in the form of a liquid or paste (not solid) at room temperature (25° C.) and atmospheric pressure (760 mmHg). As the oil, those generally used in cosmetics can be used alone or in combination. These oils may be volatile or non-volatile. Preferably, the oil is different from the UV filter.

[0138] The oil may form the oily phase of the composition according to the invention.

[0139] The oil may be a non-polar oil such as hydrocarbon oil, silicone oil, etc.; a polar oil such as vegetable oil or animal oil and ester oil or ether oil; or a mixture thereof.

[0140] The oil may be chosen from oils of vegetable or animal origin, synthetic oils, silicone oils, hydrocarbon oils and fatty alcohols.

[0141] As examples of vegetable oils, mention may be made of, for example, linseed oil, camellia oil, macadamia oil, corn oil, mink oil, olive oil, avocado oil, tea oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

[0142] As examples of animal oils, mention may be made of, for example, squalene and squalane.

[0143] As examples of synthetic oils, there may be mentioned alkane oils such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

[0144] The ester oil is preferably a saturated or unsaturated, linear or branched C1-C 26 Aliphatic monobasic or polybasic acids and saturated or unsaturated, straight-chain or branched C1-C 26 Liquid esters of aliphatic monohydric or polyhydric alcohols, the total number of carbon atoms of the ester is greater than or equal to 10.

[0145] Preferably, for esters of monohydric alcohols, at least one of the alcohol and the acid from which the esters of the invention are derived is branched.

[0146] 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.

[0147] C4-C can also be used 22 Dicarboxylic or tricarboxylic acids and C1-C 22 Esters of alcohols, and mono-, di- or tri-carboxylic acids and non-sugar C4-C 26 Esters of dihydric, trihydric, tetrahydric or pentahydric alcohols.

[0148] Mention may especially be made of: diethyl sebacate, isopropyl lauroyl sarcosinate, diisopropyl sebacate, bis(2-ethylhexyl) sebacate, diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, bis(2-ethylhexyl) adipate, diisostearyl adipate, bis(2-ethylhexyl) maleate, triisopropyl citrate, triisocetyl citrate, triisostearyl citrate, glyceryl trilactate, tricaprylin, tri(octyldodecyl) citrate, trioleyl citrate, neopentyl glycol diheptanoate, diethylene glycol diisononanoate.

[0149] The hydrocarbon oil may be selected from:

[0150] - straight-chain 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

[0151] - Straight-chain or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petroleum jelly, polydecene and hydrogenated polyisobutene, such as Parleam®, and squalane.

[0152] The term "fatty" in fatty alcohols means that a relatively large number of carbon atoms are included. Thus, alcohols having 4 or more, preferably 6 or more, and more preferably 12 or more carbon atoms are included within the scope of fatty alcohols. Fatty alcohols may be saturated or unsaturated. Fatty alcohols may be straight chain or branched.

[0153] The fatty alcohol may have the structure R-OH, wherein R is selected from saturated and unsaturated, linear and branched groups containing 4 to 40 carbon atoms, preferably 6 to 30 carbon atoms, and more preferably 12 to 20 carbon atoms. In at least one embodiment, R may be selected from C 12 -C 20 Alkyl and C 12 -C 20 R may or may not be substituted with at least one hydroxyl group.

[0154] The amount of oil in the composition according to the invention may be 0.1 wt % or more, preferably 0.2 wt % and more preferably 0.5 wt % or more, and may be 30 wt % or less, preferably 20 wt % or less and more preferably 10 wt % or less, relative to the total weight of the composition.

[0155] •Hydrophilic organic solvents acceptable to cosmetics

[0156] The composition according to the invention may comprise at least one cosmetically acceptable hydrophilic organic solvent. If two or more of these solvents are used, they may be identical or different.

[0157] Cosmetically acceptable hydrophilic organic solvents may form the aqueous phase of the composition according to the invention.

[0158] Cosmetically acceptable hydrophilic organic solvents may include, for example, substantially linear or branched lower monohydric alcohols having 1 to 8 carbon atoms, such as ethanol, propanol, butanol, isopropanol and isobutanol; aromatic alcohols, such as benzyl alcohol and phenylethyl alcohol; polyols or polyol ethers, such as propylene glycol, dipropylene glycol, isopentyl glycol, butylene glycol, glycerol, propanediol, caprylyl glycol, sorbitol, ethylene glycol monomethyl, monoethyl and monobutyl ether, propylene glycol ethers, such as propylene glycol monomethyl ether, diethylene glycol alkyl ethers, such as diethylene glycol monoethyl ether or monobutyl ether, polyethylene glycols, such as PEG-4, PEG-6 and PEG-8, and derivatives thereof.

[0159] The amount of cosmetically acceptable hydrophilic organic solvent in the composition according to the invention may range from 0.1% to 20% by weight, preferably from 1% to 15% by weight and more preferably from 3% to 10% by weight relative to the total weight of the composition.

[0160] •Adjuvants

[0161] The composition according to the present invention may also contain various adjuvants commonly used in the composition of sunscreen products, which can be selected from physiologically acceptable media; cationic, anionic, nonionic, amphoteric or zwitterionic polymers, or mixtures thereof; cationic, anionic, nonionic, amphoteric or zwitterionic surfactants or emulsifiers, or mixtures thereof; antioxidants; neutralizers, pH regulators, such as triethanolamine; chelating agents, such as disodium EDTA; fragrances; buffers, such as tris(hydroxymethyl)aminomethane; emollients; dispersants; dyes and / or pigments; film formers and / or thickeners; ceramides; preservatives, such as phenoxyethanol; preservative aids and opacifiers.

[0162] In a preferred embodiment of the present invention, the composition according to the present invention comprises a cationic, anionic, nonionic, amphoteric or zwitterionic surfactant or emulsifier different from (b) the first polyglycerol fatty acid ester and (c) the second polyglycerol fatty acid ester in an amount of 3% by weight or less, preferably 2% by weight or less, and more preferably 1% by weight or less, relative to the total amount of the composition.

[0163] In a particular embodiment of the present invention, the composition according to the invention does not contain any kind of surfactant or emulsifier other than (b) the first polyglycerol fatty acid ester and (c) the second polyglycerol fatty acid ester.

[0164] In a preferred embodiment of the present invention, the composition according to the invention comprises inorganic UV filters in an amount of 3% by weight or less, preferably 2% by weight or less and more preferably 1% by weight or less, relative to the total amount of the composition.

[0165] In a particular embodiment of the invention, the composition according to the invention does not contain any kind of inorganic UV filters. In general, inorganic UV filters have an average particle size of less than 200 nm and include, for example, titanium dioxide, zinc oxide and cerium oxide.

[0166] The adjuvant may preferably be present in the composition of the invention in an amount ranging from 0.01% to 30% by weight, preferably from 0.1% to 20% by weight and more preferably from 1% to 10% by weight relative to the total weight of the composition.

[0167] The composition according to the present invention can be prepared by mixing components (a) to (e) as essential components and the optional components as described above.

[0168] The method and manner of mixing the above essential ingredients and optional ingredients are not limited. Any conventional method and manner can be used to mix the above essential ingredients and optional ingredients to prepare the composition according to the present invention. Generally speaking, the aqueous phase and the oil phase are prepared separately, and then they are mixed to prepare the composition according to the present invention. The mixing ratio of the aqueous phase and the oil phase is not particularly limited, but is generally 1:10 to 10:1, preferably 1:5 to 5:1, and more preferably 1:4 to 4:1. It is also possible to heat the ingredients to, for example, 50 to 90°C to ensure that they are completely dissolved during the method.

[0169] [Beauty Methods]

[0170] The invention also relates to a cosmetic method for keratinous materials comprising the step of applying to keratinous materials a composition according to the invention.

[0171] The composition according to the present invention can be preferably used as a cosmetic composition.The cosmetic composition can be a sunscreen composition for protecting keratin substances such as skin from ultraviolet rays.

[0172] By cosmetic method is meant here a non-therapeutic cosmetic method for caring for the surface of a keratinous matrix such as the skin.

[0173] The present invention therefore relates to a cosmetic method for protecting keratinous materials from UV radiation comprising at least one step of applying a composition according to the invention to a keratinous material such as the skin.

[0174] The method according to the invention may further comprise a further step of mixing the aqueous phase and the oily phase of the invention so as to make a homogeneous composition before application to the keratinous materials.

[0175] [product]

[0176] The invention also relates to a cosmetic product comprising a composition according to the invention.The product according to the invention comprises a composition according to the invention and a container or packaging containing the composition.

[0177] The composition of the present invention is sprayable, or in other words, capable of being dispensed in the form of fine particles or mist. This means that the composition can be dispensed using a dispenser having a nozzle.

[0178] Therefore, the present invention also relates to a product comprising a container and a nozzle, wherein the container contains the composition of the present invention.

[0179] The composition of the present invention can be applied using any container with a spray member, including suitable aerosol or non-aerosol spray devices. Because the composition according to the present invention has a relatively low viscosity, the benefit is that the composition can be applied without using an aerosol spray device. Therefore, a non-aerosol spray device is preferred, and includes, for example, a mist pump or a spray pump, such as the following: Eurogel spray pump (available from Seqquist Perfect, Cary Ill.), P1 spray pump (available from Precision, Ajax, Canada), APTAR SP22 PANACHE insertion pump and Calmar spray pump (Calmar, Inc., City of Industry, Calif), and Mitani mist pump (available from MITANI VALVE CO.LTD).

[0180] In a particular embodiment of the invention, the invention relates to a product comprising:

[0181] a container comprising a composition according to the invention;

[0182] an outlet connected to the container, such as an outlet of a nozzle; and

[0183] Spray device,

[0184] in

[0185] The spray device is capable of discharging the composition in the container through an outlet.

[0186] In this embodiment, the container may be a bottle, a tube, or a vessel.

[0187] Example

[0188] The present invention will be described in more detail through examples. However, these examples should not be construed as limiting the scope of the present invention.

[0189] [Composition]

[0190] Each composition according to Examples 1 to 9 (Example 1 to Example 9) and Comparative Examples 1 to 4 (Comparative Examples 1 to Comparative Examples 4) was prepared by mixing the ingredients shown in the following Tables 1 and 2. The compositions are shown in Tables 1 and 2. The numerical values ​​of the amounts of the ingredients are all based on "weight %" of the active raw material.

[0191] [Evaluate]

[0192] (Thin film uniformity)

[0193] Each composition was shaken 10 times in a closed container to become uniform. Using a coating device known as "Elecometer4340", each uniform composition was applied to a polypropylene sheet (thickness 0.2 mm, from PX-P of Sekisui Kagaku) ​​using a power of 1 kgf, to obtain a 10 μm coating of the composition on the sheet. Then, the sheet was exposed to an ultraviolet lamp (UV black ray B-100AP, wavelength 365 nm) and photographed. The film uniformity was evaluated with three grades ("++", "+" and "-") based on the visual appearance of the coated sheet. If the appearance is uniform and intense black, it is classified as "++". If the appearance is uneven blue translucent, it is classified as "-".

[0194] (In vitro SPF and PPD values)

[0195] Each composition was shaken 10 times in a closed container for homogenization. Using an adjustable pipette, the mixture was stirred at 0.8 mg / cm 2Each uniform composition was transferred to a plate (Helio plate HD 6, PMMA, roughness 6 μm) in an amount of 100 μm and then evenly spread with fingers. The coated plate was air-dried for 15 minutes at room temperature. The obtained sample plate was placed in a Labsphere UV transmittance analyzer (model UV-2000, from Solar Light Company, Philadelphia, Pennsylvania). Irradiation was performed at 12 points on the sample plate.

[0196] In vitro SPF values ​​are predicted by the absorption intensity in the UV-B range (290 nm-320 nm). Higher absorption intensity indicates higher in vitro SPF values. In vitro SPF values ​​are calculated by Labsphere using the COLIPA method.

[0197] The in vitro PPD value is predicted by the absorption intensity of the UV-A range (320 nm-380 nm). Higher absorption intensity shows higher in vitro PPD values. The in vitro PPD value is calculated according to the method adopted by the Japanese Cosmetic Industry Association (JCIA) as the official test procedure for UV-A labeling of products, which is commonly used by testing laboratories in Europe and the United States (Japan Cosmetic Industry Association Technical Bulletin, Measurement Standards for UVA protection efficacy, promulgated on November 21, 1995 and effective from January 1, 1996).

[0198] (texture)

[0199] The texture was evaluated using a trained professional protocol. Each composition was shaken 10 times in an APTAR SP22 PANACHE insertion pump for homogeneity and then applied in the form of a mist to the facial skin of the panelists (n = 6) by a professional operator using a controlled gesture and amount (2 pushes). The texture was evaluated using the following criteria:

[0200] Good: It provides a very refreshing and non-greasy texture,

[0201] Poor: It provides a greasy texture.

[0202] The evaluation results are summarized in Tables 1 and 2 below.

[0203] Table 1

[0204]

[0205] Table 2

[0206]

[0207] As can be seen from Tables 1 and 2, the compositions according to each of Examples 1 to 9 comprising the specific combination of ingredients (a) to (e) of the present invention exhibit good film uniformity and high in vitro SPF and / or PPD values. In addition, they provide a refreshing texture, which is preferred by consumers.

[0208] On the other hand, each of the composition according to Comparative Example 1 (which lacks the first polyglyceryl fatty acid ester), the composition according to Comparative Example 2 (which lacks the second polyglyceryl fatty acid ester), and the composition according to Comparative Example 3 (which lacks the powder) exhibited poor film uniformity. In addition, the composition according to Comparative Example 4 (which includes poly C10-30 alkyl acrylate instead of the powder in Comparative Example 3) provides a greasy texture.

[0209] Therefore, it can be concluded that the composition according to the present invention is very preferred as a sunscreen composition, because it provides an improved UV protection effect (due to high in vitro SPF and / or PPD values) and a good texture. In addition, since the mixed homogeneous composition of the present invention has a relatively low viscosity, it can be easily applied to keratin substances and can be very suitable for consumers.

Claims

1. A two-phase composition comprising an aqueous phase and an oil phase, wherein the composition comprises: (a) at least one organic UV filter, (b) at least one first polyglycerol fatty acid ester having an HLB value of 9 or more and 17 or less, wherein the first polyglycerol fatty acid ester has 4 or more glycerol units and 14 or less carbon atoms in the fatty acid moiety, (c) at least one second polyglycerol fatty acid ester having an HLB value of 3.0 or more and 7 or less, wherein the second polyglycerol fatty acid ester has 2 or 3 glycerol units and 16 or more carbon atoms in the fatty acid moiety, (d) at least one hydrophilic or water-dispersible powder selected from metal oxide powders and polysaccharide powders, wherein the powder has an average particle size of 20 μm or less and 0.2 μm or more, and (e) water, wherein the two-phase composition has two distinct layers at rest consisting of a continuous aqueous phase and a continuous oil phase, The amount of the (b) first polyglycerol fatty acid ester is 0.1 wt % or more and 1.6 wt % or less relative to the total weight of the composition, The amount of the (c) second polyglycerol fatty acid ester is 0.01 wt % or more and 1 wt % or less relative to the total weight of the composition, and The metal oxide powder is silica or a silica-based filler selected from hollow silica powder, glass beads, amorphous silica powder, silicates, fumed silica, silica aerosol, precipitated silica and colloidal silica.

2. The composition according to claim 1, wherein the (a) organic UV filter comprises at least one lipophilic organic UV filter and at least one hydrophilic UV filter.

3. The composition according to claim 1 or 2, wherein the total amount of the (b) first polyglycerol fatty acid ester and the (c) second polyglycerol fatty acid ester is 0.1 wt % or more and 2 wt % or less relative to the total weight of the composition.

4. The composition according to claim 1, wherein the weight ratio of the amount of the (b) first polyglyceryl fatty acid ester / the (c) second polyglyceryl fatty acid ester is 1 or more and 10 or less.

5. The composition according to claim 1, wherein the (d) powder comprises silicon dioxide powder or cellulose powder. 6 . The composition according to claim 1 , wherein the (d) powder has an average particle size of 10 μm or less and 0.5 μm or more.

7. The composition according to claim 1, wherein the amount of the (a) organic UV filter is 5 wt% or more and 50 wt% or less relative to the total weight of the composition. 8 . The composition according to claim 1 , wherein the amount of the (d) powder is 0.01 wt % or more and 10 wt % or less relative to the total weight of the composition.

9. The composition according to claim 1, wherein the weight ratio of the water phase / the oil phase is 1 or more.

10. The composition according to claim 1, comprising 3 wt% or less of a cationic, anionic, nonionic, amphoteric or zwitterionic surfactant different from the (b) first polyglycerol fatty acid ester and the (c) second polyglycerol fatty acid ester, or does not contain any type of surfactant different from the (b) first polyglycerol fatty acid ester and the (c) second polyglycerol fatty acid ester, relative to the total amount of the composition.

11. The composition according to claim 1, comprising an inorganic UV filter in an amount of 3% by weight or less, relative to the total amount of the composition, or containing no inorganic UV filter of any kind.

12. A non-therapeutic cosmetic method for keratinous materials comprising the step of applying to said keratinous materials a composition according to any one of the preceding claims.

13. A product comprising a container and a nozzle, wherein the container comprises a composition according to any one of claims 1 to 11.

Images