Powdered cosmetic composition

Abstract

The present invention relates to a powder cosmetic composition comprising (a) at least one titanium dioxide having a D10 of 0.2 μm or more and a D90 of 1.5 μm or less, (b) at least one silicon dioxide, and (c) at least one organic UV filter. The composition according to the present invention can provide excellent cosmetic properties, such as excellent texture, covering properties and UV protection effects, and excellent usability as a powder cosmetic.

Description

Technical Field

[0001] The present invention relates to a powder cosmetic composition, in particular a powder cosmetic composition for use on keratinous substances such as skin. Background Art

[0002] UV protection effect is a key factor for cosmetic compositions, especially powdered cosmetic compositions for keratinous substances such as skin. In order to obtain excellent UV protection performance, small-sized particles, such as titanium dioxide with an average size of 20nm to 60nm, are widely used as UV filters.

[0003] However, the use of such small-sized particles in powdered cosmetic compositions may produce a powdery texture when they are applied to keratinous materials. In addition, there is a concern that such small-sized particles may affect the health of consumers because they may penetrate into the body through keratinous materials such as the skin. Summary of the invention

[0004] The object of the present invention is to provide a powdered cosmetic composition which can provide excellent cosmetic properties such as excellent base quality, covering power, UV protection effect, and excellent usability as a powdered cosmetic without using small-sized particles.

[0005] The above-mentioned object of the present invention can be achieved by a powdery cosmetic composition, which comprises:

[0006] (a) at least one titanium dioxide having a D10 of 0.2 μm or more and a D90 of 1.5 μm or less,

[0007] (b) at least one silicon dioxide, and

[0008] (c) at least one organic UV filter.

[0009] (a) Titanium dioxide may have a D10 of 0.3 μm or more, preferably 0.4 μm or more.

[0010] (a) Titanium dioxide may have a D90 of 1.2 μm or less, preferably 1.0 μm or less.

[0011] (a) Titanium dioxide may have a D50 of 0.3 μm or more, preferably 0.4 μm or more, more preferably 0.5 μm or more, particularly 0.6 μm or more, and 1.0 μm or less, preferably 0.9 μm or less, more preferably 0.8 μm or less, particularly 0.7 μm or less.

[0012] The amount of (a) titanium dioxide may be 1 wt % or more, preferably 5 wt % or more, more preferably 10 wt % or more, further preferably 15 wt % or more, and may be 40 wt % or less, preferably 35 wt % or less, more preferably 30 wt % or less, even more preferably 25 wt % or less, relative to the total weight of the composition.

[0013] (b) The silica may be spherical porous silica.

[0014] (b) The silicon dioxide may have an average primary particle size of 0.5 μm or more, preferably 1 μm or more, more preferably 2 μm or more, further preferably 3 μm or more, and 30 μm or less, preferably 20 μm or less, more preferably 10 μm or less, further preferably 7 μm or less.

[0015] The amount of (b) silicon dioxide may be 1 wt % or more, preferably 2 wt % or more, more preferably 3 wt % or more, and may be 20 wt % or less, preferably 15 wt % or less, more preferably 10 wt % or less, relative to the total weight of the composition.

[0016] (c) Organic UV filters may be lipophilic and liquid.

[0017] (c) Organic UV filters may be selected from salicylic acid compounds, such as homosalicylate, and β,β-diphenylacrylate compounds, such as octocrylene, and mixtures thereof.

[0018] The amount of (c) organic UV filters may be 1 wt % or more, preferably 3 wt % or more, more preferably 7 wt % or more, and may be 30 wt % or less, preferably 20 wt % or less, more preferably 15 wt % or less, relative to the total weight of the composition.

[0019] The composition according to the invention may be anhydrous or contain less than 3% by weight of water, preferably less than 1% by weight of water, relative to the total weight of the composition.

[0020] The composition may be provided in the form of a compact or pressed powder, a blush or a loose powder.

[0021] 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.

[0022] Best Mode for Carrying Out the Invention

[0023] After intensive studies, the inventors surprisingly found that the use of silicon dioxide and titanium dioxide having a specific particle size can provide powdery cosmetic compositions having sufficient UV protective properties, excellent cosmetic properties and usability as powdery cosmetics even if they do not include small-sized particles as UV filters, thereby completing the present invention.

[0024] Therefore, the powdered cosmetic composition according to the present invention comprises:

[0025] (a) at least one titanium dioxide having a D10 of 0.4 μm or more and a D90 of 1.2 μm or less;

[0026] (b) at least one silicon dioxide, and

[0027] (c) at least one organic UV filter.

[0028] Hereinafter, the composition according to the present invention will be described in detail.

[0029] [Composition]

[0030] The composition according to the present invention is a powdery composition. Therefore, the composition according to the present invention may be solid. The term "solid" herein means that the composition cannot flow or does not flow at ambient temperature, such as 25°C and atmospheric pressure, even under its own weight.

[0031] The composition according to the invention may be a cosmetic composition, in particular a cosmetic composition for keratinous substances. Keratinous substances may include, for example, the skin of the face, neck and body, in particular the facial skin. In particular, the composition according to the invention may be a skin cosmetic composition, such as a powder foundation and a powder makeup base composition.

[0032] The composition may be a powdered composition which may be provided in the form of a compacted or pressed powder, a blush or a loose powder.

[0033] The powder cosmetic composition according to the present invention comprises (a) at least one titanium dioxide having a D10 of 0.2 μm or more and a D90 of 1.5 μm or less, (b) at least one silicon dioxide, and (c) at least one organic UV filter. The ingredients in the composition will be described in detail below.

[0034] (Titanium dioxide)

[0035] The composition of the present invention contains (a) at least one titanium dioxide having a D10 of 0.2 μm or more and a D90 of 1.5 μm or less as a powder component.

[0036] (a) The specific primary particle size D10 of titanium dioxide is 0.2 μm or more, and D90 is 1.5 μm or less.

[0037] The term "D10" herein refers to a primary particle size where 10% by volume of the particles based on the total volume of the particles are less than or equal to D10 and 90% by volume of the particles based on the total volume of the particles are greater than D10. Similarly, the term "D90" herein refers to a primary particle size where 90% by volume of the particles based on the total volume of the particles are less than or equal to D90 and 10% by volume of the particles based on the total volume of the particles are greater than D90.

[0038] D10 and D90 values ​​can be determined by laser diffraction, for example using a laser diffraction particle size distribution analyzer, such as the Mastersizer 2000 from Malvern Corp.

[0039] In a preferred embodiment of the present invention, (a) titanium dioxide has a D10 of 0.3 μm or more, more preferably 0.4 μm or more.

[0040] In another preferred embodiment of the present invention, the (a) titanium dioxide has a D90 of 1.2 μm or less, more preferably 1.0 μm or less.

[0041] The average primary particle size D50 of (a) titanium dioxide of the present invention is not particularly limited, but is generally 0.3 μm or more, preferably 0.4 μm or more, more preferably 0.5 μm or more, especially 0.6 μm or more, and 1.0 μm or less, preferably 0.9 μm or less, more preferably 0.8 μm or less, especially 0.7 μm or less.

[0042] The term "D50" herein refers to a primary particle size where 50% by volume of the particles based on the total volume of the particles are less than or equal to D50 and 50% by volume of the particles based on the total volume of the particles are greater than D50. The D50 value can be determined by laser diffraction, for example using a laser diffraction particle size distribution analyzer, such as the Mastersizer 2000 from Malvern Corp.

[0043] In a preferred embodiment of the present invention, (a) titanium dioxide comprises titanium dioxide sold under the name MT-700Z by TAYCA Corporation.

[0044] The amount of (a) titanium dioxide may be 1 wt % or more, preferably 5 wt % or more, more preferably 10 wt % or more, further preferably 15 wt % or more, and may be 40 wt % or less, preferably 35 wt % or less, more preferably 30 wt % or less, even more preferably 25 wt % or less, relative to the total weight of the composition.

[0045] (Silicon Dioxide)

[0046] The composition according to the present invention comprises (b) at least one silicon dioxide as a powder component. Two or more (b) silicon dioxides may be used in combination. Thus, a single type of silicon dioxide or a combination of different types of silicon dioxide may be used.

[0047] The silica may be selected from the group consisting of silicates, amorphous silica, precipitated silica, porous silica, pyrogenic silica, fumed silica, hollow silica, silica gel, silica aerogel, and combinations thereof.

[0048] Silica suitable for use in the present invention may be spherical or non-spherical in shape. Preferably, the silica is spherical.

[0049] The silica used in the composition according to the invention may be porous or non-porous. Preferably, the silica is porous.

[0050] Therefore, the silica used in the present invention may be spherical porous silica.

[0051] The silica may have an average primary particle size of 0.5 μm or more, preferably 1 μm or more, more preferably 2 μm or more, even more preferably 3 μm or more, and 30 μm or less, preferably 20 μm or less, more preferably 10 μm or less, and further preferably 7 μm or less. The term "average primary particle size" as used herein may refer to a volume average size average diameter, which is assigned to half of the population by statistical particle size distribution, referred to as D50. For example, the average primary particle size may be measured by a laser diffraction particle size distribution analyzer, such as the Mastersizer 2000 of Malvern Corp.

[0052] The oil absorption capacity of silica is not particularly limited, but is generally 0.1 ml / g or more, preferably 0.3 ml / g or more, more preferably 0.5 ml / g or more, and 3 ml / g or less, preferably 2 ml / g or less, more preferably 1 ml / g or less, even more preferably 0.8 ml / g or less. The oil absorption capacity of silica can be measured by a conventional method of a person skilled in the art, such as a method for determining the oil absorption rate of a powder described in standard NF T 30-022 and a method according to JIS-K6217-4.

[0053] In a specific embodiment of the present invention, the silica may have a pore volume of 0.01 ml / g or more, preferably 0.1 ml / g or more, more preferably 0.2 ml / g or more, and may have a pore volume of 5 ml / g or less, preferably 2 ml / g or less, more preferably 0.7 ml / g or less. The pore volume of silica may be measured by conventional methods of those skilled in the art, such as the BJH method.

[0054] In another specific embodiment of the present invention, the silica may have a pore size of 1 nm or more, preferably 3 nm or more, more preferably 6 nm or more, and 30 nm or less, preferably 20 nm or less, and more preferably 15 nm or less. The pore size of the silica may be measured by a conventional method for those skilled in the art, such as the BJH method.

[0055] The silicon dioxide used in the composition according to the present invention may or may not be surface treated with a surface treatment agent. Preferably, the silicon dioxide is not surface treated with a surface treatment agent. The treatment agent may be a hydrophobic or hydrophilic treatment agent, preferably selected from the following hydrophobic treatment agents: siloxanes, such as methicone, polydimethylsiloxane, perfluoroalkyl silane; fatty acids such as stearic acid; metal soaps such as aluminum dimyristate, hydrogenated aluminum tallow glutamate, perfluoroalkyl phosphates, perfluoroalkyl silanes, perfluoroalkyl silazanes, polyhexafluoropropylene oxide, polyorganosiloxanes containing perfluoroalkyl perfluoropolyether groups, amino acids; N-acylated amino acids or salts thereof; lecithin, isopropyl triisostearyl titanate and mixtures thereof.

[0056] Silicas that may be mentioned include porous silica microspheres, especially those sold under the name Spheron P-1500 by the company PRESPERSE.

[0057] (b) Silicon dioxide may be present in the composition according to the present invention in an amount of 1 wt% or more, preferably 2 wt% or more, more preferably 3 wt% or more, relative to the total weight of the composition. (b) Silicon dioxide may be present in the composition according to the present invention in an amount of 20 wt% or less, preferably 15 wt% or less, more preferably 10 wt% or less, relative to the total weight of the composition.

[0058] (Organic UV filter)

[0059] The composition according to the invention comprises (c) 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.

[0060] The term "UV" herein refers to ultraviolet radiation in the wavelength range of 290-400 nm. Typically, "UV" rays include the UV-B region (wavelength 290-320 nm) and the UV-A region (wavelength 320-380 nm).

[0061] The organic UV filters herein may be liquid or solid. The term "solid" means that the substance is solid at 25°C and 1 atmosphere. The term "liquid" means that the substance is liquid at 25°C and 1 atmosphere. Preferably, the organic UV filters are liquid at 25°C and 1 atmosphere.

[0062] The organic UV filters may be hydrophilic or lipophilic.In a preferred embodiment, the organic UV filters according to the invention comprise at least one lipophilic organic UV filter.

[0063] The term "hydrophilic" as used herein refers to a substance that is hydrophilic at room temperature (25°C) and atmospheric pressure (10 5 Pa) in a concentration of at least 1% by weight relative to the total weight of water.

[0064] The term "lipophilic" as used herein refers to a substance that is lipophilic at room temperature (25°C) and atmospheric pressure (10 5 Pa) in the oil at a concentration of at least 1% by weight relative to the total weight of the oil.

[0065] The organic lipophilic UV 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, merocyanine compounds, aminobenzophenone compounds, dibenzoylmethane compounds, anthranilic acid compounds, 4,4-diarylbutadiene compounds, and benzoxazole compounds.

[0066] As triazine compounds, mention may be made of ethylhexyl triazone sold under the name “UVINUL T-150” by BASF, diethylhexyl butyramidotriazolone 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.

[0067] As para-aminobenzoic acid derivatives, mention may be made of para-aminobenzoic acid esters (PABA), for example ethyl PABA (para-aminobenzoate), ethyl dihydroxypropyl PABA and ethylhexyl dimethyl PABA, sold under the name “ESCALOL 5972” by ISP, glyceryl PABA and PEG-25 PABA and its salts, sold, for example, under the name “Uvinul P25” by BASF.

[0068] 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.

[0069] As the imidazoline compound, ethylhexyl dimethoxybenzylidene dioxoimidazolinium propionate may be mentioned.

[0070] Mention may be made, as salicylic acid compound, of the homosalicylate sold under the name “Eusolex HMS” by Rona / EM Industries and of the ethylhexyl salicylate sold under the name “NEO HELIOPAN OS” by Symrise.

[0071] As cinnamate compounds, mention may be made of ethylhexyl methoxycinnamate, which is sold under the name "PARSOL CX" by DSM NUTRITIONAL PRODUCTS, isopropyl ethoxycinnamate, isoamyl methoxycinnamate, which is sold under the name "NEO HELIOPAN E 1000" by Symrise, diisopropyl methylcinnamate, cinoxate, and ethylhexanoin glyceryl dimethoxycinnamate, DEA methoxycinnamate and salts thereof.

[0072] 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.

[0073] As benzylidenemalonate compounds, mention may be made of polyorganosiloxanes comprising benzylidenemalonate moieties, such as Polysilicone-15 sold under the name “Parsol SLX” by DSM NUTRITIONAL PRODUCTS, and dineopentyl-4′-methoxybenzylidenemalonate.

[0074] As aminobenzophenone compound, mention may be made of n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, an alternative name of which is diethylaminohydroxybenzoylhexyl benzoate (DHHB), which is sold by BASF under the trade name “Uvinul A+”.

[0075] As dibenzoylmethane compounds, mention may be made of 4-isopropyldibenzoylmethane sold under the name “Eusolex 8020” by the company Merck, 1-(4-methoxy-1-benzofuran-5-yl)-3-phenylpropane-1,3-dione sold under the name “Pongamol” by Quest, 1-(4-(tert-butyl)phenyl)-3-(2-hydroxyphenyl)propane-1,3-dione and butylmethoxydibenzoylmethane sold under the trade name “Parsol 1789” by Hoffmann-La Roche.

[0076] Mention may be made, as anthranilic acid compound, of menthyl anthranilate sold under the name “NEO HELIPAN MA” by Symrise.

[0077] As 4,4-diarylbutadiene compounds, there may be mentioned 1,1-dicarboxy(2,2′-dimethylpropyl)-4,4-diphenylbutadiene and diphenylbutadiene malonate and malononitrile.

[0078] The organic hydrophilic UV filters used in the present invention may include, but are not limited to, phenylbenzimidazole compounds, benzylidene camphor compounds, and bisbenzoxazolyl compounds.

[0079] Mention may be made, as phenylbenzimidazole compounds, of phenylbenzimidazolesulfonic acid sold under the name “Eusolex 232” by Merck and disodium phenyldibenzimidazoletetrasulfonate sold under the name “Neo Heliopan AP” by Haarmann and Reimer.

[0080] As benzylidene camphor compounds, mention may be made of terephthalylidene dicamphorsulfonic acid and its salts, for example those manufactured under the name "Mexoryl SX" by Chimex.

[0081] As bisbenzoxazolyl compounds, mention may be made of those described in patents EP 669 323 and US Pat. No. 2,463,264, more particularly disodium phenyldibenzimidazole tetrasulfonate and its salts sold under the trade name “Neo Heliopan AP” by Haarmann and Reimer.

[0082] Salts of the UV filter compounds which can be used are in particular selected from alkali metal salts, such as sodium or potassium salts; alkaline earth metal salts, such as calcium, magnesium or strontium salts; metal salts, such as zinc, aluminum, manganese or copper salts; 4+ ammonium salts; 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.

[0083] In a preferred embodiment of the present invention, (c) organic UV filters are selected from salicylic acid compounds, such as homosalicylate, and β,β-diphenylacrylate compounds, such as octocrylene, and mixtures thereof.

[0084] The amount of (c) organic UV filters in the composition according to the invention may be 1 wt % or more, preferably 3 wt % or more, more preferably 7 wt % or more, and may be 30 wt % or less, preferably 20 wt % or less, more preferably 15 wt % or less, relative to the total weight of the composition.

[0085] (Other ingredients)

[0086] •filler

[0087] The composition according to the present invention may contain at least a filler different from (a) titanium dioxide and (b) silicon dioxide. Two or more fillers may be combined. The filler may be inorganic or organic. The filler may also be silicone powder.

[0088] As inorganic fillers, mention may be made of talc, mica, kaolin, bentonite, calcium carbonate, magnesium hydrogen carbonate, hydroxyapatite, boron nitride, synthetic fluorphlogopite, sericite, calcined talc, calcined mica, calcined sericite, synthetic mica, perlite, lauroyl lysine, metal soaps, bismuth oxychloride, barium sulfate, magnesium sulfate, magnesium carbonate and mixtures thereof, optionally subjected to hydrophilic or hydrophobic treatment.

[0089] According to the present invention, the inorganic filler may be surface treated with at least one silicone oil and / or at least one non-silicone oil.

[0090] The silicone oil may be selected from polydialkylsiloxanes such as polydimethylsiloxane, methicine, polyalkylaryldisiloxanes such as polymethylphenylsiloxane, polydiarylsiloxanes such as polydiphenylsiloxane, polyalkylhydrogensiloxanes such as methylhydrogenpolysiloxane, and modified polysiloxanes.

[0091] As non-silicone oil, a vegetable oil may be used, preferably a vegetable oil that is solid at ambient temperature. In a preferred embodiment, the non-silicone oil is a hydrogenated vegetable oil. In a preferred embodiment, the hydrogenated vegetable oil is hydrogenated palm oil.

[0092] In one embodiment of the invention, the inorganic filler may be a colorant or pigment. The term "pigment" is understood to mean white or colored, mineral or organic particles of any shape, which are insoluble in the physiological medium and are intended to color the composition. The pigment may be white or colored, as well as mineral and / or organic.

[0093] Among the mineral pigments that may be mentioned are zirconium oxide, cerium oxide, and also zinc oxide, iron oxide (black, yellow or red) or chromium oxide, mica, talc, fluorphlogopite, synthetic fluorphlogopite, sericite, kaolin, aluminum hydroxide, manganese violet, ultramarine, hydrated chromium and ferric blue, and also metal powders, for example aluminum and copper powder.

[0094] The pigment may be a composite pigment. The composite pigment may comprise at least one metal oxide and at least one aluminum oxide (or aluminum oxide). According to a specific form of the invention, the composite pigment may also additionally comprise silicon dioxide particles. According to a specific form of the invention, the composite pigment may also additionally comprise titanium dioxide. Among the composite pigments that may be mentioned are Covalumine Sonoma Red AS® (INCI name: Alumina (and) CI 77491 (and) Triethoxycaprylylsilane); Covalumine Sonoma Yellow AS® (INCI name: Alumina (and) CI 77492 (and) Triethoxycaprylylsilane); Covalumine Sonoma Black AS® (INCI name: Alumina (and) CI 77499 (and) Triethoxycaprylylsilane (and) Silica); and Covalumine Atlas White AS® (INCI name: Alumina (and) Titanium Oxide (and) Triethoxycaprylylsilane), as well as those with the following INCI names: Titanium Dioxide (and) Triethoxycaprylylsilane (and) Alumina (and) Silica.

[0095] For example, the pigment may be surface treated. The surface treatment compound may include a hydrophobic agent, such as a silane, preferably a C1-C2 ortho-alkylsilane, more preferably a tri(C1-C4)alkoxy(C1-C12 ) alkylsilanes, for example triethoxycaprylylsilane and its fluoro- or perfluoro-derivatives, for example perfluorooctyltriethoxysilane, siloxanes, for example organosiloxanes, di-organosiloxanes, polydimethylsiloxanes, hydrogenpolydimethylsiloxanes, polymethylsiloxanes, polyurethanes, siloxane-polyurethanes and their fluoro- or perfluoro-derivatives, fatty acid soaps, C9-15 fluoroalcohol phosphates, acrylate / polydimethylsiloxane copolymers, mixed C9-C15 fluoroalcohol phosphate / siloxane copolymers, lecithin or hydrogenated lecithin, waxes, for example carnauba wax, polyethylene, chitosan and optionally acylated amino acids, for example lauroyl lysine, disodium stearoyl glutamate and acyl aluminum glutamate. Other hydrophobic agents may include isopropyl titanium triisostearate (ITT), ITT and dimethicone (ITT / dimethicone) crosspolymer, ITT and amino acids, ITT / triethoxycaprylylsilane crosspolymer, fatty acids (e.g., stearate), HDI / trimethylol hexyllactone crosspolymer, PEG-8 methyl ether triethoxysilane, aloe, jojoba esters, and magnesium myristate (MM).

[0096] Inorganic fillers here can be distinguished from so-called inorganic UV filters.

[0097] As organic fillers, mention may be made of acrylic polymer powders, silicone powders, wax powders, polyamide powders, urethane polymer powders, tetrafluoroethylene polymer powders, polyacrylonitrile powders, poly-β-alanine powders, polyethylene powders, polytetrafluoroethylene powders, (meth)acrylic acid or (meth)acrylate powders, lauroyl lysine, starch, cellulose powders, tetrafluoroethylene polymer powders and mixtures thereof.

[0098] As silicone powder, mention may be made of an organopolysiloxane elastomer powder, which is a crosslinked polymer. Preferably, the silicone powder is coated with a silicone resin. As silicone powder, mention may in particular be made of an organopolysiloxane elastomer powder coated with a silicone resin, in particular with a silsesquioxane resin, as, for example, in patent US5538793, the content of which is incorporated herein by reference. Such elastomer powders are sold by the company Shin-Etsu under the names KSP-100, KSP-101, KSP-102, KSP-103, KSP-104 and KSP-105 and have the INCI name: Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer. Preferably, the organopolysiloxane elastomer powder coated with a silicone resin is a compound having the INCI name: Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer. Silicone elastomer powders that may be mentioned include the powders sold under the names Trefil® Powder E-505C and Trefil® Powder E-506C by the company Dow Corning.

[0099] Other silicone powders may be hybrid silicone powders functionalized with fluoroalkyl groups, such as sold under the name “KSP-200” by the company Shin-Etsu, and hybrid silicone powders functionalized with phenyl groups, such as sold under the name “KSP-300” by the company Shin-Etsu (INCI name: Diphenyl Dimethicone / Vinyl Diphenyl Dimethicone / Silsesquioxane Crosspolymer).

[0100] The amount of filler in the composition can be 30 wt % or more, preferably 45 wt % or more, more preferably 55 wt % or more, and 90 wt % or less, preferably 80 wt % or less, more preferably 70 wt % or less, relative to the total weight of the composition.

[0101] ·additive

[0102] The composition according to the present invention may contain additives as long as they do not impair the effects of the present invention and they are acceptable in cosmetic use. The additives may be selected from oils, such as oils of plant or animal origin, synthetic oils, silicone oils, hydrocarbon oils, and fatty alcohols; anionic, cationic, nonionic or amphoteric polymers; natural or synthetic thickeners; lubricants or dispersants; gelling agents; natural extracts extracted from animals or vegetables; waxes; cosmetically acceptable hydrophobic organic solvents; peptides and their derivatives; protein hydrolyzates; preservatives; co-preservatives, such as decanediol, ethylhexylglycerol and caprylyl glycol; bactericides; vitamins or provitamins; fragrances; stabilizers and mixtures thereof.

[0103] The amount of the additive is not limited, but may be 0.1 to 30% by weight relative to the total weight of the composition according to the present invention.

[0104] The composition according to the invention is preferably anhydrous or contains less than 3% by weight of water, preferably less than 1% by weight of water, relative to the total weight of the composition. The term "anhydrous" means in particular that water is preferably not intentionally added to the composition, more preferably is not present in the composition, but may be present in trace amounts in various compounds used in the composition.

[0105] The composition according to the present invention can be prepared by mixing (a) the first spherical silicone powder and (b) the second spherical silicone powder, and, if necessary, one or more other ingredients, with a mixer such as a Henschel mixer to obtain a powdery mixture. The resulting mixture can then be pulverized by a pulverizer such as a pin mill and a hammer mill and then sieved with a sieve. In the case where the composition according to the present invention is in the form of a dense powder, the mixture can be further pressed by a press in a pan.

[0106] [Beauty Methods]

[0107] The invention also relates to a cosmetic method for a keratin substrate such as the skin, comprising applying to the keratin substrate a composition according to the invention.

[0108] The composition according to the invention is intended to be applied to keratinous materials such as the skin, for example on the face, neck and body, to create an attractive appearance, hide imperfections such as spots, wrinkles, pores and protect keratinous materials from UV rays. The composition is usually applied to keratinous materials such as the skin with an applicator such as a sponge applicator, a puff or a brush.

[0109] The cosmetic method is preferably used for making up and / or caring for the skin, preferably the facial skin. The composition can be picked up by rubbing the powder with an applicator, such as a sponge, a powder puff or a brush. The composition is then moved from the applicator to the skin by contacting the applicator on the skin.

[0110] The composition used according to the invention is preferably intended for use as a leave-on cosmetic composition.The term "leave-on" refers to a composition that is not intended to be washed off or removed immediately after application. Example

[0111] The present invention will be described in more detail by way of examples. However, these examples should not be construed as limiting the scope of the present invention.

[0112] [Composition]

[0113] The powder composition according to Example 1 and Comparative Example 1 was prepared by mixing the ingredients listed in Table 2 below. The composition is also shown in Table 2. In Table 2, all components are based on "weight %" as active raw materials. Among the components, titanium dioxide was purchased from TAYCA Corporation (product name: MT-700Z), and its D10 was 0.42μm, D50 was 0.61μm, and D90 was 0.99μm. Silica was purchased from PRESPERSE (product name: Spheron P-1500), which is a spherical porous silica with a D50 of 5μm, an oil absorption of 0.6mL / g, a pore volume of 0.3mL / g, and a pore size of 10nm.

[0114] [evaluate]

[0115] (hardness)

[0116] 11.5 g of each of the powdered cosmetic compositions of Example 1 and Comparative Example 1 were compacted to form a cylindrical compacted powder having a diameter of 80 mm, wherein the pressure was 13 kgf / cm 2 (First pressing) and 30kgf / cm 2 (Second suppression).

[0117] The hardness of each sample obtained as above was measured at 5 points of each pressed sample using an Asker hardness meter Al-type.

[0118] (Compressibility)

[0119] The samples according to Example 1 and Comparative Example 1 were subjected to a drop test (N=3), in which each sample was dropped onto a tile from a height of 20 cm. The chippings of each sample were measured, and the loss of powder was calculated. "OK" in the results means that there was no loss of powder after the drop test.

[0120] (Main body uniformity)

[0121] The uniformity of the body of the samples according to Example 1 and Comparative Example 1 was evaluated by observing the appearance of the body. If the components were not aggregated and the body was uniform, it was marked as "OK". This property also relates to the ease of manufacturing because when the obtained body is uniform, it is easy to form a compacted or pressed powder product.

[0122] (Appearance of Sediment)

[0123] A square area (5×8 cm) of the skin was pretreated with 40 mg of polydimethylsiloxane. Then, 90 mg of each sample was applied to the area and evenly spread with a fixed gesture by a finger cot. The appearance of the deposit on the skin of each of the samples according to Example 1 and Comparative Example 1 was evaluated by observation and evaluated according to the following evaluation criteria:

[0124] Good: The deposit is uniform and matte in appearance;

[0125] Poor: Deposits are uneven and / or shiny or greasy.

[0126] (Sensory Evaluation)

[0127] The samples according to Example 1 and Comparative Example 1 were subjected to sensory evaluation on slip texture, powdery feel and pore-hiding properties. The compositions according to Example 1 and Comparative Example 1 were each applied to the facial skin of six professionals using an applicator by a trained beautician. The makeup effect of each sample was then ranked by the six professionals based on the following criteria in Table 1.

[0128] Table 1.

[0129] Fraction standard 5.5-4.5 very good 4.4-3.5 good 3.4-2.5 Difference 2.5-1.5 Very bad

[0130] (Body SPF)

[0131] In vivo SPF was assessed according to the method described in Colipa P3 (P3 High SPF Reference Sunscreen Standard P3 (ISO 2444:2010)) (N=10).

[0132] The results are summarized in Table 2 below.

[0133] Table 2.

[0134] .

[0135] The composition according to Example 1, which includes silica and titanium dioxide having a specific particle size range, provides excellent hardness, appearance of a deposit, and excellent sensory properties of a sliding texture, a low powdery feel, and improved pore covering properties, compared to the composition according to Comparative Example 1, which does not include a combination of silica and titanium dioxide having a specific particle size range. In addition, the composition according to Example 1 exhibits a sufficient SPF value even though it does not include small-sized particles as a UV filter. In addition, the usability of the composition according to Example 1 is acceptable because it shows excellent compactability and bulk uniformity as a powdery cosmetic.

[0136] Therefore, it can be concluded that the composition according to the present invention has great benefits because it can provide excellent cosmetic properties, such as providing excellent texture, excellent covering power, improved appearance and sufficient UV protection effect, and thus the composition according to the present invention is very useful as a cosmetic powder composition.

Claims

1. A powdered cosmetic composition comprising: (a) 15-40 wt% of at least one titanium dioxide having a D10 of 0.2 μm or more and a D90 of 1.5 μm or less, and a D50 of 0.4 μm or more and 1.0 μm or less; (b) 3 to 20% by weight of at least one silicon dioxide, and (c) 7 to 20% by weight of at least one organic UV filter; The silica is spherical porous silica having an oil absorption capacity of at least 0.1 ml / g and 1 ml / g or less, and the silica has an average primary particle size of 0.5 μm or more and 30 μm or less and a pore diameter of 3 nm or more and 30 nm or less and a pore volume of 0.1 ml / g or more and 5 ml / g or less. 2 . The composition according to claim 1 , wherein the titanium dioxide has a D10 of 0.3 μm or more.

3. The composition according to claim 1 or 2, wherein the titanium dioxide has a D90 of 1.2 μm or less. 4 . The composition according to claim 1 , wherein the titanium dioxide has a D50 of 0.5 μm or more and 0.9 μm or less. 5 . The composition according to claim 1 , wherein the amount of the titanium dioxide is 15 wt % or more and 35 wt % or less relative to the total weight of the composition. 6 . The composition according to claim 1 , wherein the silicon dioxide has an average primary particle size of 1 μm or more and 20 μm or less.

7. The composition according to claim 1, wherein the silica has an oil absorption capacity of at least 0.3 ml / g and 0.8 ml / g or less.

8. The composition according to claim 1, wherein the amount of the silicon dioxide is 3 wt% or more and 10 wt% or less relative to the total weight of the composition.

9. The composition of claim 1, wherein the organic UV filter is lipophilic and liquid.

10. The composition of claim 1, wherein the organic UV filter is selected from salicylic acid compounds and β,β-diphenylacrylate compounds and mixtures thereof.

11. The composition according to claim 1, wherein the amount of the organic UV filter is 7 wt% or more and 15 wt% or less, relative to the total weight of the composition.

12. The composition of claim 1, wherein the composition comprises less than 3% by weight of water, relative to the total weight of the composition.

13. The composition of claim 1, wherein the composition is provided in the form of a compacted or pressed powder.

14. The composition according to claim 1, wherein the composition is provided in the form of blush or loose powder.

15. A non-therapeutic cosmetic method for keratinous materials, comprising the step of applying the composition according to any one of claims 1 to 14 to the keratinous materials.