JP2021107372A - Oily composition - Google Patents

Abstract

To provide oily compositions containing a large amount of a polar oil.SOLUTION: There is provided an oily composition containing (A) 1 μm or more of hydrophobized silica and (B) a polar oil, the polar oil (B) being contained in the oil phase contained in the oily composition in the amount of 40 mass% or more, and the ratio of the content of the (B) polar oil to the content of the (A) 1 μm or more of hydrophobized silica being 10 or less.SELECTED DRAWING: None

Description

The present invention relates to oily compositions.

Microplastic beads (MPB) may be added to the cosmetics in order to enhance the feeling of use (Patent Document 1). By the way, in recent years, there is a movement to diversify the chemical substances to be blended in cosmetics and the amount thereof, in view of the awareness of environmental problems.

JP-A-2019-43920

When the oily composition is used for cosmetics, quasi-drugs, etc., it may be more preferable if the amount of the polar oil blended is larger.

Therefore, one aspect of the present invention is to provide an oily composition that is easy to use even if a large amount of polar oil is blended.

As a result of intensive studies to solve the above problems, the inventors of the present invention have as one aspect of the present invention, an oiliness containing (A) hydrophobized silica of 1 μm or more and (B) polar oil. The composition was found.

According to one aspect of the present invention, it is possible to provide an oily composition having good usability even when a large amount of polar oil is blended.

One aspect of the present invention relates to an oily composition containing (A) hydrophobized silica of 1 μm or more and (B) polar oil. One aspect of the present invention will be described in detail below, but the embodiments of the present invention are not limited thereto.

<(A) Hydrophobicized silica>
As a method for hydrophobizing silica in the hydrophobized silica which is one aspect of the present invention, a known method can be used. For example, silicone treatment, fatty acid treatment, fatty acid soap treatment, fatty acid ester treatment, higher alcohol treatment, wet method, a method of hydrophodizing and drying a silica sol to obtain hydrophobized silica particles, a hydrophilic silica particle dispersion, and a silazane compound. Alternatively, a method in which a monofunctional silane compound is added to triorganosilylate the surface of the silica particles to obtain hydrophobized silica particles, and the tetrafunctional silane compound is hydrolyzed and condensed to obtain a hydrophilic silica particle dispersion, and then hydrophilic. After substituting the organic solvent with water and then hydrophobizing with a trifunctional silane compound, the dispersion medium is further replaced with a ketone solvent, and the reactive group remaining on the surface of the silica particles is trisorbed with a silazane compound or a monofunctional silane compound. Examples thereof include a method of organosilylating and hydrophobizing, a method of adding a trifunctional silane compound to a hydrophilic silica particle dispersion to make it hydrophobic, and then adding a monofunctional silane compound to obtain hydrophobized silica particles. Not limited to. These hydrophobizing treatments can be carried out according to a conventional method.

Specifically, the silicone treatment includes silicone oils such as methylhydrogenpolysiloxane, dimethylpolysiloxane, and methylphenylpolysiloxane; methyltrimethoxysilane, ethyltrimethoxysilane, hexyltrimethoxysilane, octyltrimethoxysilane, and the like. Alkylsilane: Treatment with fluoroalkylsilane such as trifluoromethylethyltrimethoxysilane and heptadecafluorodecyltrimethoxysilane can be mentioned.

Examples of the fatty acid treatment include treatment with palmitic acid, isostearic acid, stearic acid, lauric acid, myristic acid, behenic acid, oleic acid, loginic acid, 12-hydroxystearic acid and the like.

Examples of the fatty acid soap treatment include treatment with aluminum stearate, calcium stearate, 12-hydroxystearate and the like.

) Examples of the fatty acid ester treatment include treatment with dextrin fatty acid ester, cholesterol fatty acid ester, sucrose fatty acid ester, starch fatty acid ester and the like.

Among these, dimethicone-treated silica, amodimethicone-treated silica, and higher alcohol-treated silica are preferable.

The particle size of the hydrophobized silica used in one aspect of the present invention is preferably 1 μm or more, particularly preferably 1 to 10 μm.

Among the hydrophobized silicas having a particle size of 1 μm or more, which are blended in the oily composition of one aspect of the present invention, those having an oil absorption amount of 10 to 400 ml / 100 g are preferably used.

When the oil absorption amount of the hydrophobized silica is 10 to 100 ml / 100 g, the feeling of use of cosmetics and quasi-drugs containing the oily composition according to one aspect of the present invention becomes powder-free. This is suitable for applications in cosmetics and quasi-drugs where moisturizing properties are preferred.

When the oil absorption amount of the hydrophobized silica is 100 to 400 ml / 100 g, the feeling of use of cosmetics and quasi-drugs containing the oily composition according to one aspect of the present invention becomes non-sticky after application. .. This is suitable for applications such as cosmetics and quasi-drugs that do not leave a feeling of use.

The hydrophobized silica having a particle size of 1 μm or more, which is one aspect of the present invention, is preferably contained in an amount of 3% by mass or more based on the total amount of the oily composition.

According to the oily composition containing the hydrophobized silica having a particle size of 1 μm or more, which is one aspect of the present invention, it is not necessary to add MPB which has been conventionally used to enhance the usability of the oily composition. , An oily composition having excellent usability can be provided.

<(B) Polar oil>
(B) The polar oil is not particularly limited as long as it is usually used in cosmetics, pharmaceuticals, and foods. As an index indicating the degree of polarity of the organic compound, an IOB value (Inorganic / Organic Balance (inorganic value / organic value)) indicating the ratio of the inorganic value to the organic value is used. Regarding the "inorganic value" and "organic value" in the IOB value, for example, the "organic value" is 20 for one carbon atom in the molecule, and the "inorganic value" is 100 for one hydroxyl group. "Inorganic value" and "organic value" are set according to various atoms or functional groups. With respect to these "inorganic value" and "organic value", the IOB value of the organic compound can be calculated by integrating the above values of all the atoms and functional groups in the organic compound (for example, Fujita). (See "The Realm of Chemistry," Vol. 11, No. 10, pp. 719-725, 1957). The IOB value of the polar oil according to one aspect of the present invention is not particularly limited, but those having an IOB value of 0.05 to 0.80 can be used.

Examples of such polar oils include esters such as cetyl octanate, oils having a polyoxyalkylene group, and vegetable oils, which are oils having a continuous ester group and a polyoxyalkylene group.

<Ultraviolet absorbing polar oil>
Among them, the polar oil (B) according to one aspect of the present invention may contain a polar oil having an ultraviolet absorbing function (hereinafter, may also be referred to as an ultraviolet absorbing polar oil). The ultraviolet absorbing polar oil contained in (B) polar oil is not particularly limited, and is, for example, an benzoic acid derivative, a salicylic acid derivative, a silicic acid derivative, a dibenzoylmethane derivative, a β, β-diphenylacrylate derivative, and a benzophenone derivative. , Benzilidenshonow derivative, phenylbenzoimidazole derivative, triazine derivative, phenylbenzotriazole derivative, anthranil derivative, imidazoline derivative, benzalmalonate derivative, 4,4-diarylbutadiene derivative and the like. Specifically, it is as follows.

Examples of the benzoic acid derivative include p-aminobenzoic acid (PABA) ethyl, ethyl-dihydroxypropyl PABA, ethylhexyl-dimethyl PABA, glyceryl PABA, polyethylene glycol (PEG) 25-PABA, diethylaminohydroxybenzoyl hexyl benzoate and the like. ..

Examples of the salicylic acid derivative include homosalate, ethylhexyl salicylate (octyl salicylate), dipropylene glycol salicylate, and TEA salicylate.

Examples of the cinnamic acid derivative include octylmethoxycinnamate or ethylhexyl methoxycinnamate, isopropyl methoxycinnamate, isoamyl methoxycinnamate, cinoxate, DEA methoxycinnamate, diisopropyl methylsilicate, and glyceryl-ethylhexanoate-dimethoxy. Examples thereof include cinnamate and di- (2-ethylhexyl) -4'-methoxybenzalmaronate.

Examples of the dibenzoylmethane derivative include butylmethoxide benzoylmethane (4-tert-butyl-4'-methoxydibenzoylmethane).
Examples of β and β-diphenylacrylate derivatives include octocrylene and the like.

Examples of the benzophenone derivative include benzophenone-1, benzophenone-2, benzophenone-3 or oxybenzophenone, benzophenone-4, benzophenone-5, benzophenone-6, benzophenone-8, benzophenone-9, benzophenone-12 and the like.

Examples of triazine derivatives include anisotriazine (bisethylhexyloxyphenol methoxyphenyl triazine), ethylhexyltriazone, diethihexylbutamidotriazine, and 2,4,6-tris (diisobutyl-4'-aminobenzalmaronate) -s. -Triazine etc. can be mentioned.

Examples of the phenylbenzotriazole derivative include drometrizoletrisiloxane and methylenebis (benzotriazolyltetramethylbutylphenol).

Examples of the anthranil derivative include menthyl anthranilate.
Examples of the imidazoline derivative include ethylhexyldimethoxybenzylidene dioxoimidazolidine propionate.

Examples of the benzalmalonate derivative include polyorganosiloxane having a benzalmalonate functional group.

Examples of the 4,4-diarylbutadiene derivative include 1,1-dicarboxy (2,2'-dimethylpropyl) -4,4-diphenylbutadiene.

The polar oil (B) according to one aspect of the present invention may contain the above-mentioned ultraviolet absorbing polar oil alone or in combination of two or more. For example, as ultraviolet absorbing polar oils, octocrylene, bisethylhexyloxyphenol methoxyphenyltriazine, diethylaminohydroxybenzoyl hexyl benzoate, ethylhexyl salicylate, ethylhexyl salicylate (octyl salicylate), oxybenzone-3, homosalate, butylmethoxydibenzoylmethane , Anisotriazine (bisethylhexyloxyphenol methoxyphenyltriazine) and ethylhexyltriazone can be combined and blended. As described above, it is preferable to use a plurality of ultraviolet absorbing polar oils having different base compounds of the above derivatives in combination because a wide range of ultraviolet protective action can be obtained. More preferably, octocrylene, bisethylhexyloxyphenol methoxyphenyl triazine, hexyl diethylaminohydroxybenzoyl benzoate, and ethyl hexyl salicylate may be blended alone or in combination of two or more.

An oily composition in which the polar oil (B) containing the ultraviolet absorbing polar oil, which is one aspect of the present invention, is preferable in that it is used for cosmetics and quasi-drugs having a sunscreen effect.

Generally, when ethylhexyl methoxycinnamate, which is an ultraviolet absorbing polar oil, is blended with an oily composition, it is comfortable to use and a smooth feeling of use can be obtained. When a hydrophobized silica having a size of 1 μm or more is blended, it is better to blend it in combination with an ultraviolet absorbing polar oil other than ethylhexyl methoxycinnamate.

As described above, the case where the (B) polar oil contains an ultraviolet absorbing polar oil is a case where only the ultraviolet absorbing polar oil is blended, or a combination of the ultraviolet absorbing polar oil and the polar oil having no ultraviolet absorbing function. May occur. Examples of polar oils having no ultraviolet absorbing function include ester oils and polyalkylene oxide derivative oils. Specifically, it is as follows.

As ester oils, isononyl isononanoate, isopropyl myristate, cetyl 2-ethylhexanate, octyldodecyl myristate, isopropyl palmitate, dextrin palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, dimethyl Hexyldecyl octanate, cetyl lactate, myristyl lactate, lanolin acetate, isosetyl stearate, isosetyl isostearate, cholesteryl 12-hydroxystearyl acid, ethylene glycol di2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl monoisostearate Glycol, neopentyl glycol dicaprate, diisostearyl malate, glyceryl di2-heptylundecanoate, trimethylolpropane tri2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythlit tetra2-ethylhexanoate, tri Glyceryl 2-ethylhexanoate (triethylhexanoin), trimethyl propane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, diethylhexyl naphthalin dicarboxylic acid, alkyl benzoate (12 to 15 carbon atoms), Cetearyl isononanoate, tri (caprylic acid / capric acid) glycerin, (dicaprylic acid / capric acid) butylene glycol, glyceryl trimyristate, tri2-heptylundecanoic acid glyceride, castor oil fatty acid methyl ester, oleate oleate, seto Stearyl alcohol acetoglyceride, 2-heptyl undecyl palmitate, diisobutyl adipate, 2-octyldodecyl ester of N-lauroyl-L-glutamate, di2-heptyl undecyl adipate, ethyl laurate, di2-ethylhexyl sebacate, 2-Hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, di2-ethylhexyl succinate, ethyl acetate, butyl acetate, amyl acetate, triethyl citrate, tripropylene glycol dipivalate And so on. Of these, isopropyl myristate, diisopropyl sebacate, and dextrin palmitate are preferable.

Examples of the polyalkylene oxide derivative oil include diethylene glycol monopropyl ether, polyoxyethylene polyoxypropylene pentaerythritol ether, and polyoxypropylene butyl ether.

The above-mentioned ester oil and polyalkylene oxide derivative oil may be blended alone or in combination of two or more as the polar oil (B) according to one aspect of the present invention. When a polar oil containing an ester oil is used in combination with an ultraviolet absorbing polar oil, the dissolution of the solid ultraviolet absorbing polar oil is promoted.

The polar oil (B) may be contained in an oil phase contained in the oily composition according to one aspect of the present invention in an amount of 40% or more, more preferably 43% or more.

In one aspect of the present invention, the ratio of the content of the hydrophobized silica of (A) 1 μm or more and the content of the polar oil (B) is preferably 10 or less, more preferably 7 or less, still more preferably 5. It may be:

<Oil phase>
The oily composition according to one aspect of the present invention may have an oil phase containing an oil other than (B) polar oil. Examples of such oils include hydrocarbon oils, higher fatty acids, higher alcohols, silicone oils, vegetable oils, animal oils, liquid oils and fats, solid oils and fats, waxes, fragrances and the like, which are used in general oily compositions.

Specifically, hydrocarbon oils include isododecane, isohexadecane, isoparaffin, liquid paraffin, ozokerite, squalane, pristan, liquid paraffin, isoparaffin, α-olefin oligomer, polybutene, selecin, squalene, petrolatum, microcrystalline wax and the like. can give. Of these, isododecane is preferable because it can satisfactorily disperse powder, particularly titanium oxide, and improve the tactile sensation.

Higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylene acid, tollic acid, isostearic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA). And so on. Of these, isostearic acid is preferable.

Higher alcohols include linear alcohols (eg, lauryl alcohols, cetyl alcohols, stearyl alcohols, behenyl alcohols, myristyl alcohols, oleyl alcohols, cetostearyl alcohols, etc.) and branched alcohols (eg, monostearyl glycerin ethers (bacyl alcohols)). -2-decyltetradecinol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol, etc.) and the like.

Vegetable oils include avocado oil, camellia oil, macadamia nut oil, corn oil, olive oil, rapeseed oil, ma oil, persic oil, wheat germ oil, southern ka oil, sunflower oil, flaxseed oil, saflower oil, cottonseed oil, eno oil, and large Examples thereof include soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, cinnamon oil, Japanese millet oil, jojoba oil, and germ oil.
Examples of animal oils include squalane, turtle oil, mink oil, egg yolk oil and the like.

Silicone oils include dimethylpolysiloxanes such as decamethyltetrasiloxane, dodecamethylpentasiloxane, tetradecamethylhexasiloxane, and hexadecamethylheptasiloxane; octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane. , Tetradecamethylcycloheptasiloxane and other cyclic polysiloxanes (cyclic dimethylpolysiloxane); methylphenylpolysiloxane, methylhydrogenpolysiloxane, decamethylpolysiloxane, dodecamethylpolysiloxane, tetramethyltetrahydrogenpolysiloxane, high Examples thereof include polymerized methylpolysiloxane, amino acid-modified silicone, and caprylyl methicone. These substances can be blended alone or in combination of two or more as the oil according to one aspect of the present invention.

Silicone oil is used as the main component of the oil phase of the oily composition. For example, if the silicone oil is not blended in a certain amount, a refreshing feeling cannot be obtained. It is recognized as an ingredient necessary to improve usability. However, it is preferable that there is an oily composition that gives such a feeling of use even if the amount of the polar oil is increased. Above all, it is preferable not to blend cyclic silicone oil, which is a cyclic oil component, among siloxane polymers in which a methyl group or the like is bonded to silicon having a silicon-oxygen bond. The oily composition according to one aspect of the present invention can provide an oily composition having high stability and excellent usability even if cyclic silicone is not blended.

Cyclic silicone oils include dimethylpolysiloxanes such as decamethyltetrasiloxane, dodecamethylpentasiloxane, tetradecamethylhexasiloxane, and hexadecamethylheptasiloxane; octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexane. Cyclic polysiloxanes (cyclic dimethylpolysiloxane) such as siloxane and tetradecamethylcycloheptasiloxane are mentioned, but are not limited thereto.

The oily composition according to one aspect of the present invention can provide an oily composition containing a large amount of polar oil, which has high stability and excellent usability even if the cyclic silicone oil is not blended.

These components can be blended alone or in combination of two or more as the oil component according to one aspect of the present invention.

The blending amount of such an oil content is 10 to 90% by mass, preferably 20 to 80% by mass, and more preferably 30 to 70% by mass, based on the total amount of the oily composition according to one aspect of the present invention.

<Manufacturing method of oily composition>
The oily composition according to one aspect of the present invention can be produced by a known method. For example, as an example of the production method, an aqueous component such as water mentioned above and an appropriate oily component described above can be prepared by using an emulsifying device or the like, but the product is not limited to these and is a target product. It can be manufactured by using a manufacturing method according to the properties of.

The oily composition according to one aspect of the present invention is suitable for applications such as cosmetics and quasi-drugs containing a large amount of polar oil.

<Water-in-oil emulsified composition>
The oily composition according to one aspect of the present invention may be the structure of a water-in-oil emulsified composition. When the water-in-oil emulsified composition is used as a cosmetic, the moisturizing feeling after application is maintained and the water retention is excellent as compared with the water-based cosmetic. Therefore, such a water-in-oil emulsified composition can be used as a cosmetic or quasi-drug that maintains a moisturizing feeling after application and has excellent water retention by applying it to the outer skin of humans or animals. It is suitably used as a sunscreen emulsion or a sunscreen cream, for example. In addition, it can be widely applied to various cosmetics that require a sunscreen effect, such as makeup products and hair products.

When the oily composition according to one aspect of the present invention is used as a water-in-oil emulsified composition, it is necessary to form an aqueous phase in addition to the above components (A) and (B) and the oil phase. The aqueous component contained in the aqueous phase is not particularly limited as long as the aqueous component is an aqueous component usually used in external compositions such as cosmetics and quasi-drugs. As the aqueous component, water, a water-soluble alcohol, a thickener, a moisturizer, a chelating agent, a preservative, a pigment and the like can be used.

As the water, purified water, ion-exchanged water, tap water and the like can be used. The water content can be appropriately selected depending on the use of cosmetics and quasi-drugs containing the water-in-oil emulsified composition according to one aspect of the present invention. For example, it is preferably 20 to 70% by mass, more preferably 30 to 60% by mass, based on the total amount of the oil-in-water composition.

As for the structure of the water-in-oil emulsified composition according to one aspect of the present invention, the aqueous phase is stably present as emulsified particles in the oily composition. Cosmetics and the like having such a structure can give a good feeling of use on the skin. As described below, the aqueous phase may also contain an aqueous component consisting of a substance compatible with water, a substance soluble in water, and the like.

As one aspect of the present invention, it may be an external composition containing an oily composition and a water-in-oil emulsified composition. Such an external composition can be used, for example, in the outer skin of humans or animals, as a cosmetic such as a sunscreen or scalp and hair cosmetics, which can be used by application or the like, or as an external preparation for skin. The external composition can take any product form, and can be used as an external composition for the face, body or scalp and hair, for example, a lotion, a milky lotion, a cream, a facial mask and the like.

<Other ingredients>
The oily composition and / or the water-in-oil emulsified composition according to one aspect of the present invention shall contain, in addition to the above components (A) and (B), a surfactant and ultraviolet rays, unless it deviates from the gist of the present invention. Absorbents, UV scatterers, whitening agents, moisturizers, thickeners, antioxidants, antibacterial preservatives, vitamins, hormones, arginines, amino acids, anti-inflammatory agents, antibacterial agents, astringents, refreshers, sterols , Alcohols, polymer substances, water, natural extracts extracted with aqueous alcohols, pigments, neutralizers, pH adjusters and the like can be blended.

Specifically, the surfactants include silicone-based surfactants, polymer surfactants, fluorine-based surfactants, nonionic surfactants, cationic surfactants, anionic surfactants, or Examples include amphoteric surfactants. In addition, a surfactant for gelation can also be used. Examples of the surfactant for gelation include, but are not limited to, dimethyldistearylammonium hectorite and dimethicone. In the aqueous phase, it is preferable to use a nonionic surfactant. For example, polyoxyethylene hydrogenated castor oil, polyoxyethylene / methylpolysiloxane copolymer, polyether-modified silicone, polyglycerin fatty acid ester, monoglycerin fatty acid ester, polyoxyethylene sorbitan fatty acid ester, sorbitan fatty acid ester, and self-emulsifying stear. Examples thereof include, but are not limited to, propylene glycol acid.

For example, a silicone-based surfactant, which is a polymer of an organosilicon compound having a surface-active effect, has high water repellency, and is widely used as a film-forming agent in cosmetics such as foundations, sunscreens, makeup bases, and conditioning agents for hair treatments. It is used. Examples of the silicone-based surfactant suitable for one aspect of the present invention include (PEG-10 / lauryldimethicone) crosspolymer, (PEG-15 / lauryldimethicone) crosspolymer, (dimethicone / (PEG-10 / 15)). Crosspolymer, PEG / PPG-20 / 22 Butyl Ether Dimethicone, PEG-10 Dimethicone, PEG-11 Methyl Ether Dimethicone, PEG-3 Dimethicone, PEG-9 Dimethicone, PEG-9 Methyl Ether Dimethicone, Polyglyceryl-3 Disiloxane Dimethicone, Lauryl Examples thereof include, but are not limited to, PEG-9 polydimethylsiloxyethyl dimethicone and lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone. Of these, PEG-9 polydimethylpolysiloxyethyl dimethicone is preferred.

In addition to the above-mentioned ultraviolet polar oil as the polar oil, any general-purpose ultraviolet absorber can be used. Specifically, sodium hydroxymethoxybenzophenone sulfonate, sodium dihydroxydimethoxybenzophenone disulfonate, hydroxymethoxybenzophenone sulfonic acid and its trihydrate, sodium hydroxymethoxybenzophenone sulfonate, phenylbenzimidazole sulfonic acid, ferulic acid, terephthalidenedi. Shono sulfonic acid, benziliden shono sulfonic acid and the like.

When the oily composition according to one aspect of the present invention is used as a sunscreen, an ultraviolet scattering agent may be contained in addition to the above-mentioned ultraviolet absorber. As the ultraviolet scattering agent, any particles can be used as long as they are powder particles having an ultraviolet scattering action, and examples thereof include fine particle titanium oxide and fine particle zinc oxide. Specifically, in addition to titanium oxide, octyltriethoxysilane-treated fine particle zinc oxide and dextrin palmitate-treated fine particle zinc oxide can be mentioned, but are not limited thereto.

Examples of the whitening agent include tranexamic acid, potassium 4-methoxysalicylic acid salt, nicotinamide and the like.

Examples of the moisturizer include glycerin, 1,3-butylene glycol, polyethylene glycol, sorbitol, xylitol, maltitol, and the like.

Examples of the thickener include plant-based polymers (eg, arabic gum, tragant gum, galactan, guagam, carrageenan, etc.), microbial-based polymers (eg, xanthan gum, dextran, succinoglycan, purulan, etc.), and animal-based polymers (eg, xanthan gum, dextran, succinoglycan, purulan, etc.). For example, collagen, casein, albumin, gelatin, etc.), starch-based polymers (for example, carboxymethyl starch, methylhydroxypropyl starch, etc.), alginic acid-based polymers (for example, sodium alginate, propylene glycol alginate, etc.) and the like can be mentioned. .. It may also be a synthetic crosspolymer such as dimethylacrylamide / acryloyldimethyltaurine sodium crosspolymer.

Examples of the antioxidant include butylhydroxytoluene, tocopherol, phytic acid, ascorbic acid, sodium metabisulfite and the like.

Examples of the antibacterial preservative include benzoic acid, sodium benzoate, salicylic acid, sorbic acid, paraoxybenzoic acid alkyl ester (ethylparaben, butylparaben, etc.), methylparaben, sodium dehydroacetate, phenoxyethanol, hexachlorophene and the like.
Examples of the chelating agent include salicylic acid, edetic acid, metaphosphoric acid and the like.

As vitamins, vitamin A and its derivatives, vitamin B6 hydrochloride, vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 and its derivatives, vitamin Bs such as vitamin B12, vitamin B15 and its derivatives, ascorbic acid, ascorbic acid Vitamin Cs such as sulfate ester (salt), ascorbic acid phosphate ester (salt), ascorbic acid dipalmitate, vitamins such as α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E-acetate, vitamin E-nicotinate Es, vitamins D, vitamin H, pantothenic acid, vitamins such as pantothetin, nicotinic acid amide, benzyl nicotinate, γ-orizanol, allantin, glycyrrhizinic acid (salt), glycyrrhetinic acid and its derivatives, hinokithiol, musidine, bisabolol , Eucalyptor, Timor Inositol, Pantotel Ethyl Ether, Ethynyl Estradiol, Cephalandin, Placenta Extract and the like.

As alcohols, as water-soluble alcohols, for example, lower alcohols, polyhydric alcohols, polyhydric alcohol polymers, alcohol alkyl ethers, alcohol ether esters, glycerin monoalkyl ethers, sugar alcohols, monosaccharides, oligosaccharides, polysaccharides and theirs. Examples include derivatives. Examples of the lower alcohol include ethanol, propanol, isopropanol, isobutyl alcohol, t-butyl alcohol and the like. Polyhydric alcohols include dihydric alcohols (eg, dipropylene glycol, 1,3-butylene glycol, ethylene glycol, trimethylene glycol, 1,2-butylene glycol, tetramethylene glycol, 2,3-butylene glycol, pentamethylene). Glycol, 2-butene-1,4-diol, hexylene glycol, octylene glycol, etc.) Trihydric alcohol (eg, glycerin, trimethylolpropane, etc.), tetrahydric alcohol (diglycerin, 1,2,6-hexane, etc.) Examples thereof include pentaerythritol such as triol), pentahydric alcohol (xylitol, triglycerin, etc.), hexahydric alcohol (for example, sorbitol, mannitol, etc.), polyethylene glycol and the like.

As high molecular weight substances, plant-based polymers such as polyhydric alcohol, Arabic gum, traganth gum, galactan, guagam, carob gum, karaya gum, gellan gum, and carrageenan; microorganisms such as xanthan gum, dextran, succinoglucan, purulan, and sodium biohyaluronate. Macromolecules; Animal macromolecules such as collagen, casein, gelatin; Stellar macromolecules such as carboxymethyl starch and methylhydroxypropyl starch; Methylcellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, sodium cellulose sulfate, hydroxypropylcellulose , Cellulose-based polymers such as sodium carboxymethyl cellulose and crystalline cellulose; Alginic acid-based polymers such as sodium alginate and propylene glycol alginate; polyvinyl alcohol, polyvinyl acetate, polyvinyl methyl ether, polyvinyl pyrrolidone, vinyl pyrrolidone and vinyl acetate copolymer, Vinyl polymers such as carboxyvinyl polymers; sodium polyacrylate, polyethyl acrylate, alkanolamine polyacrylate, alkyl methacrylate and dimethylaminoethyl methacrylate copolymer, poly 2-acrylamide-2-methylpropansulfonic acid, polymethacryloyl Acrylic polymers such as oxytrimethylammonium; polymers containing 2-methacryloyloxyethyl phosphorylcholine as a monomer can be mentioned.

In addition, ascorbic acid such as sodium lauroylcosin, glutathione; α-hydroxy acids such as aminocaproic acid, citric acid, malic acid, lactic acid, glycolic acid, tartrate and other organic acids, salts such as sodium and potassium, and gishigishi , Clara, Kohone, Orange, Sage, Nokogiri grass, Zeniaoi, Senkyu, Senburi, Thyme, Touki, Touhi, Birch, Sugina, Hechima, Maronie, Yukinoshita, Hiougi, Kamitsure, Arnica, Yuri, Yomogi, Shakuyaku, Aloe, Kuchinashi Sawara, royal jelly, placenta extract, pantotenil ethyl ether, dipotassium glycyrrhizinate, biotin, pyridoxin hydrochloride, adenosine triphosphate, α-lipoic acid, 3-O-ethylascorbic acid, magnesium ascorbic acid phosphate, arbutine, glucosyl Examples include hesperidin and glucosyllutin.

These substances can be blended within a range that does not deviate from the gist of the present invention.

The following is an example relating to an oily composition according to one aspect of the present invention. Those skilled in the art can understand that the substances, formulations, ratios, methods, etc. used in this embodiment can be appropriately changed as long as they do not deviate from the gist of the present invention. Moreover, the description of this example is not intended to limit the present invention to the scope of the example. Unless otherwise specified, the blending amount "%" in the following examples and the like represents "mass%".

[Examples 1 to 4 and Comparative Examples 1 to 3]
An oily composition having the compositions listed in each of the following tables was prepared according to a conventional method. The component compositions of the oily compositions used in Examples and Comparative Examples are as shown in Table 1.

Here, the particle size of the octyltriethoxysilane-treated fine particle zinc oxide was 25 nm. The particle size of the fine particles of zinc oxide treated with dextrin palmitate was 15 nm. The particle size of the dimethicone-treated silica was 9 μm, and the oil absorption was 250 ml / 100 g. The particle size of the amodimethicone-treated silica was 5 μm, and the oil absorption was 30 ml / 100 g. The particle size of the higher alcohol-treated silica was 2 μm, and the oil absorption was 60 ml / 100 g. The spherical silica was porous and had an average particle size of 5 μm.
The usability and stability of the oily composition were evaluated as follows.

[Usage]
Ten people specializing in cosmetics evaluation evaluated the non-stickiness and non-squeaky powder when applied to the arm on a five-point scale based on the following criteria, and further judged from the average score.
5 points: Good 4 points: Somewhat good 3 points: Normal 2 points: Somewhat bad 1 point: Bad judgment criteria A: Average score 4.0 or more B: Average score 3.0 or more and less than 4.0 C: Average score 3. Less than 0

〔Stability〕
The cosmetics (samples) of each example were filled in a closed container and rotated at room temperature at a speed of 45 rpm for 4 hours. Then, the state of each sample was evaluated as follows by visual inspection and actual use test.

A: No change B: Powder agglomerates are observed The results are shown in Table 1 below.

Claims (7)

(A) Hydrophobicized silica of 1 μm or more and
(B) Polar oil and
An oily composition containing
The (B) polar oil is contained in the oil phase contained in the oily composition in an amount of 40% by mass or more, and the (B) polar oil is contained with respect to the content of the hydrophobized silica of (A) 1 μm or more. An oily composition having an amount ratio of 10 or less. The oily composition according to claim 1, wherein the polar oil (B) contains an ultraviolet absorbing polar oil. The oily composition according to claim 1 or 2, wherein the hydrophobized silica of (A) 1 μm or more is contained in an amount of 3% by mass or more based on the total amount of the oily composition. The oily composition according to claim 3, wherein the ultraviolet absorbing polar oil is one or more components selected from the group consisting of octocrylene, homosalate, and octyl salicylate. (A) The oily composition according to any one of claims 1 to 4, wherein the hydrophobized silica having an oil absorption amount of 1 μm or more has an oil absorption amount of 10 to 100 ml / 100 g. (A) The oily composition according to any one of claims 1 to 4, wherein the hydrophobized silica having an oil absorption amount of 1 μm or more has an oil absorption amount of 100 to 400 ml / 100 g. The oily composition according to any one of claims 1 to 6, which is a water-in-oil emulsified composition.