WO2023079977A1 - Produit cosmétique de protection solaire - Google Patents

Produit cosmétique de protection solaire Download PDF

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Publication number
WO2023079977A1
WO2023079977A1 PCT/JP2022/039213 JP2022039213W WO2023079977A1 WO 2023079977 A1 WO2023079977 A1 WO 2023079977A1 JP 2022039213 W JP2022039213 W JP 2022039213W WO 2023079977 A1 WO2023079977 A1 WO 2023079977A1
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mass
ultraviolet absorber
sunscreen
cosmetic
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PCT/JP2022/039213
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English (en)
Japanese (ja)
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柚里 幸島
祐子 鈴木
美月 志賀
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株式会社 資生堂
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/31—Hydrocarbons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/35—Ketones, e.g. benzophenone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/41—Amines
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations

Definitions

  • This disclosure relates to sunscreen cosmetics.
  • compositions exhibiting sunscreen properties and cosmetics using such compositions have been developed.
  • Patent Document 1 0.5 to 30% by weight of a perfume component, 0.1 to 20% by weight of an emulsifier, 50 to 99% by weight of water, 0.001 to 10% by weight of a water-soluble polymer, and ultraviolet absorption
  • a liquid or gel perfume composition which contains a soluble agent and is substantially free of alcohol.
  • Patent Document 2 discloses a single organic filter filtering UV A , a single organic filter different from the first filter filtering UV B , and 1-50% by weight of a solvent for said filter.
  • An anti-UV additive comprising at least 95% by weight of a mixture consisting of at least one non-volatile oil, wherein the organic filter for filtering UV A is selected from dibenzoylmethane derivatives and comprises from 5 to 5 by weight of the additive.
  • the UV B filtering organic filter is selected from cinnamate derivatives and 20-90% by weight of the additive weight, the non-volatile oil isononyl isononanoate, dicaprylic acid/ selected from butylene glycol dicaprate, phenyltrimethicone, and diisostearyl malate, and representing 5 to 30% by weight of the weight of the additive, for a composition, wherein said composition comprises a perfume and a colorant; Disclosed is a cosmetic composition or flavored solution containing an anti-UV additive.
  • Patent Document 3 discloses a water-in-oil sunscreen containing (A) a cinnamic acid-based ultraviolet absorber, (B) porous silica, (C) oil, (D) a surfactant, and (E) water.
  • A a cinnamic acid-based ultraviolet absorber
  • B porous silica
  • C oil
  • D a surfactant
  • E water
  • JP-A-08-225431 Japanese Patent No. 6551701 JP 2009-067683 A
  • sunscreen cosmetics have had a problem with the odor peculiar to the ultraviolet absorber blended in the cosmetics.
  • sunscreen cosmetics that combine a salicylic acid derivative ultraviolet absorber and a solid ultraviolet absorber at room temperature have excellent sunscreen performance, but exhibit a unique sunscreen odor. was desired.
  • the subject of the present disclosure is to provide a sunscreen cosmetic that improves the unique sunscreen odor that occurs when a salicylic acid derivative ultraviolet absorber and a solid ultraviolet absorber at room temperature are used in combination.
  • ⁇ Aspect 1> Contains a salicylic acid derivative ultraviolet absorber, a solid ultraviolet absorber at room temperature, and a fragrance,
  • the perfume is limonene, 2,6-dimethyl-7-octen-2-ol, n-octanal, cis-3-hexen-1-yl salicylate, 4-methyl-3-decen-5-ol, hexyl acetate, 2-phenylethyl alcohol, linalool, citronellyl acetate, citronellol, ⁇ -ionone, benzyl acetate, ⁇ -hexylcinnamaldehyde, methyl dihydrojasmonate, geraniol, cis-jasmone, jasmine lactone, 1-(2-butenoyl)-2, 6,6-trimethyl-1,3-cyclohexadiene, methylionone, isobutylmethyltetrahydropyranol, vanillin, 2-
  • the fragrance is limonene, cis-3-hexen-1-yl salicylate, hexyl acetate, 2-phenylethyl alcohol, linalool, citronellol, ⁇ -ionone, benzyl acetate, methyl dihydrojasmonate, geraniol, 1-(2-butenoyl )-2,6,6-trimethyl-1,3-cyclohexadiene, methylionone, and isobutylmethyltetrahydropyranol.
  • ⁇ Aspect 7> The cosmetic according to any one of aspects 1 to 6, further comprising a thickening agent.
  • a sunscreen cosmetic that improves the peculiar sunscreen odor that occurs when a salicylic acid derivative ultraviolet absorber and a solid ultraviolet absorber at room temperature are used in combination.
  • FIG. 1 is a graph of masking and harmonizing effects when using various fragrances.
  • the sunscreen cosmetic of the present disclosure (hereinafter sometimes simply referred to as “cosmetics”) contains a salicylic acid derivative UV absorber, an UV absorber that is solid at room temperature, and the specific fragrance described above.
  • the sunscreen cosmetic of the present disclosure has a unique sunscreen odor (hereinafter simply “sunburn It is thought that the principle of action that can improve the "stop odor”) is as follows.
  • sunscreen odor hereinafter simply “sunburn It is thought that the principle of action that can improve the "stop odor" is as follows.
  • more specific odors can be expressed, but not limited to the following, for example, a salicylic acid-based odor, a bitter odor, and a combination of these odors. mentioned.
  • Sunscreen cosmetics generally generate a unique odor associated with the base used.
  • Various components are contained in the base, but the present inventor analyzed the odor of each part (for example, the ultraviolet absorber part, the ultraviolet scattering agent part) used when preparing the cosmetic.
  • a combination of a salicylic acid derivative ultraviolet absorber and an ultraviolet absorber that is solid at room temperature, and the odor generated when these are heated in the preparation of a cosmetic is found to be the source of an unpleasant odor, and the odor is eliminated. By doing so, it was found that the unpleasant odor of the cosmetic as a whole can be eliminated.
  • Such odor is typically generated when the salicylic acid derivative ultraviolet absorber and the ultraviolet absorber solid at room temperature are heated, but such odor remains in the cosmetic even after it is slowly cooled to room temperature. .
  • the present inventors selected a specific perfume from a myriad of perfumes. To improve the odor of sunscreen in a more comfortable direction, and furthermore, to improve the odor of sunscreen as a whole cosmetic containing a salicylic acid derivative ultraviolet absorber and an ultraviolet absorber solid at room temperature in a more comfortable direction. I found
  • the "harmonage effect” means an effect in which an unpleasant odor component and a perfume component are incorporated to shift the quality of the unpleasant odor from unpleasant to pleasant.
  • masking effect means the effect of eliminating or masking unpleasant odors.
  • the sunscreen cosmetic of the present disclosure contains a salicylic acid derivative ultraviolet absorber.
  • a salicylic acid derivative ultraviolet absorber Commercially available products, for example, can be appropriately used as such materials.
  • the salicylic acid derivative UV absorber can also suitably dissolve UV absorbers that are solid at room temperature, which will be described later.
  • the amount of the salicylic acid derivative ultraviolet absorber to be blended is not particularly limited, and can be appropriately blended so as to achieve the desired sunscreen performance.
  • a blending amount is, for example, 1.0% by mass or more, 5.0% by mass or more, 10% by mass or more, 15% by mass or more, 20% by mass or more, or 30% by mass or more, relative to the total amount of the cosmetic.
  • the salicylic acid derivative UV absorber is not particularly limited as long as it has a salicylic acid skeleton, and examples include homosalate (homothyl salicylate), ethylhexyl salicylate (octyl salicylate), and triethanolamine salicylate.
  • Salicylic acid derivative ultraviolet absorbers can be used alone or in combination of two or more.
  • the present inventor found that when the UV absorber solid at room temperature and the salicylic acid derivative UV absorber are heated to mix them, the odor associated with the salicylic acid derivative UV absorber is enhanced. Among them, homosalate and ethylhexyl salicylate have a large effect of enhancing the odor caused by heating. Even if there is, the sunscreen odor can be suitably improved.
  • the sunscreen cosmetic of the present disclosure contains an ultraviolet absorber that is solid at room temperature.
  • the amount of the UV absorber that is solid at room temperature can be appropriately added so as to achieve the desired sunscreen performance.
  • the blending amount can be, for example, 0.1% by mass or more, 0.5% by mass or more, or 1.0% by mass or more with respect to the total amount of the cosmetic, and 20% by mass. % or less, 15 mass % or less, 10 mass % or less, 7.0 mass % or less, or 5.0 mass % or less.
  • the sunscreen cosmetic of the present disclosure typically heats and mixes an ultraviolet absorber that is solid at room temperature and a salicylic acid derivative ultraviolet absorber. Therefore, there is no particular limitation on the ultraviolet absorber that is solid at room temperature as long as it can be dissolved by heating.
  • examples of such ultraviolet absorbers include bisethylhexyloxyphenolmethoxyphenyltriazine, ethylhexyltriazone, diethylaminohydroxybenzoylhexylbenzoate, and oxybenzone-3.
  • a solid ultraviolet absorber can be used individually or in combination of 2 or more types at normal temperature.
  • bisethylhexyloxyphenol methoxyphenyltriazine and diethylaminohydroxybenzoyl hexyl benzoate when combined with a heated salicylic acid derivative ultraviolet absorber, enhance the sunscreen odor, but the cosmetics of the present disclosure contain a specific fragrance. Since it contains, the sunscreen odor can be suitably improved even for such an ultraviolet absorber.
  • the sunscreen cosmetic of the present disclosure contains the following specific fragrances (hereinafter sometimes referred to as "specific fragrances").
  • specific fragrances By blending such a fragrance in cosmetics, a salicylic acid derivative ultraviolet absorber and an ultraviolet absorber solid at room temperature are used in combination, and a unique sunscreen produced when these are heated in the preparation of cosmetics. Odor can be improved.
  • fragrances include limonene, 2,6-dimethyl-7-octen-2-ol, n-octanal, cis-3-hexen-1-yl salicylate, 4-methyl-3-decen-5-ol, hexyl acetate , 2-phenylethyl alcohol, linalool, citronellyl acetate, citronellol, ⁇ -ionone, benzyl acetate, ⁇ -hexylcinnamaldehyde, methyl dihydrojasmonate, geraniol, cis-jasmone, jasmine lactone, 1-(2-butenoyl)-2 ,6,6-trimethyl-1,3-cyclohexadiene, methylionone, isobutylmethyltetrahydropyranol, vanillin, 2-acetyl-2,3,8,8-tetramethyl-1,2,3,4,5,6 , 7,8-octahydronaphthal
  • perfumes are able to achieve scores greater than 0 in the Harmonage Test described below.
  • limonene cis-3-hexen-1-yl salicylate, hexyl acetate, 2-phenylethyl alcohol, linalool, citronellol, ⁇ -ionone, benzyl acetate, methyl dihydrojasmonate, geraniol, 1-(2-butenoyl)
  • At least one selected from the group consisting of -2,6,6-trimethyl-1,3-cyclohexadiene, methylionone, and isobutylmethyltetrahydropyranol is preferred.
  • Such a perfume can further improve the sunscreen odor when the score exceeds 0.3 in the Harmonage Test described later, and can further improve the sunscreen odor when the score exceeds 0.6.
  • the amount of the specific fragrance compounded can be appropriately adjusted according to, for example, the required degree of improvement in sunscreen odor and the required degree of fragrance.
  • the blending amount is 1.0 ⁇ 10 ⁇ 6 mass % or more, 5.0 ⁇ 10 ⁇ 6 mass % or more, 1.0 ⁇ 10 ⁇ 5 mass % or more, 5.0 ⁇ 10 ⁇ 6 mass % or more, based on the total amount of the cosmetic. 0 ⁇ 10 ⁇ 5 % by mass or more, 1.0 ⁇ 10 ⁇ 4 % by mass or more, 5.0 ⁇ 10 ⁇ 4 % by mass or more, or 1.0 ⁇ 10 ⁇ 3 % by mass or more, and It can be 0.1% by mass or less, 0.05% by mass or less, or 0.03% by mass or less.
  • the amount of the specific fragrance is 1.0 ⁇ 10 -6 parts by weight or more, 5.0 ⁇ 10 -6 parts by weight or more, 1.0 ⁇ 10 -5 parts by weight or more, 5.0 ⁇ 10 -5 per 100 parts by weight of the total amount of absorbent Parts by mass or more, 1.0 ⁇ 10 ⁇ 4 parts by mass or more, 5.0 ⁇ 10 ⁇ 4 parts by mass or more, 1.0 ⁇ 10 ⁇ 3 parts by mass or more, or 5.0 ⁇ 10 ⁇ 3 parts by mass or more It can also be 1.0 parts by mass or less, 0.50 parts by mass or less, 0.10 parts by mass or less, or 0.05 parts by mass or less.
  • the sunscreen cosmetic of the present disclosure may contain fragrances other than the above-mentioned specific fragrances, as long as the effects of the present disclosure are not adversely affected.
  • fragrances there are fragrances that have no effect on the sunscreen odor in the present disclosure, or that conversely produce unpleasant odors (hereinafter sometimes referred to as "incompatible fragrances"). .
  • the amount of such incompatible perfumes is 1.0 ⁇ 10 ⁇ 3 % by mass or less, 5.0 ⁇ 10 ⁇ 4% by mass or less, 1.0 ⁇ 10 ⁇ 4 % by mass or less, relative to the total amount of the cosmetic, It is preferably 5.0 ⁇ 10 ⁇ 5 mass % or less, 1.0 ⁇ 10 ⁇ 5 mass % or less, or 5.0 ⁇ 10 ⁇ 6 mass % or less, and more preferably does not contain incompatible perfumes.
  • Such incompatible perfumes can include, for example, cis-3-hexenyl acetate and dimethyl-3-cyclohexene-1-carbaldehyde.
  • whether or not perfumes other than the above specific perfumes correspond to incompatible perfumes can be evaluated by the harmonage test described later. Specifically, if the harmonizing effect score is 0 or less, the perfume can be considered an incompatible perfume when used alone.
  • the sunscreen cosmetic of the present disclosure can appropriately contain various components within a range that does not adversely affect the effects of the present disclosure.
  • various components include additive components that can be usually blended in sunscreen cosmetics, such as anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, thickeners, and moisturizing agents.
  • UV absorbers other than the above UV absorbers, pH adjusters, skin nutrients, vitamins, pharmaceuticals, quasi-drugs, cosmetics, etc.
  • Water-soluble agents, buffering agents, preservatives, propellants, organic powders, inorganic powders, ultraviolet scattering agents, pigments, dyes, pigments, water, oils and the like can be mentioned.
  • Such optional components can be used alone or in combination of two or more.
  • the sunscreen cosmetic of the present disclosure contains a thickening agent.
  • a thickener an aqueous phase thickener, an oil phase thickener, or the like can be appropriately selected according to the form of the cosmetic (for example, oil-in-water cosmetic, water-in-oil cosmetic, oily cosmetic).
  • a thickener can be used individually or in combination of 2 or more types.
  • the sunscreen cosmetic of the present disclosure contains the specific fragrance described above, even if the thickener exhibits an odor, the sunscreen odor of the cosmetic as a whole can be suitably improved.
  • Aqueous phase thickener Aqueous-phase thickeners that are usually blended in cosmetics can be used in order to increase the viscosity of the aqueous phase. Specific examples include various hydrophilic thickeners such as natural water-soluble polymers, semi-synthetic water-soluble polymers, synthetic water-soluble polymers, and inorganic thickeners. Aqueous phase thickeners can be used alone or in combination of two or more.
  • natural water-soluble polymers include plant-based polymers such as gum arabic, tragacanth gum, galactan, guar gum, carrageenan, pectin, quince seed (quince) extract, agar, and brown algae powder; microbial macromolecules such as synoglycan; and animal macromolecules such as collagen, casein, albumin and gelatin.
  • semi-synthetic water-soluble polymers include starch-based polymers such as carboxymethyl starch and methylhydroxy starch; methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, stearoxyhydroxypropylmethylcellulose, cellulose sulfates; , hydroxypropyl cellulose, carboxymethyl cellulose, and crystalline cellulose; and alginic acid polymers such as sodium alginate and propylene glycol alginate.
  • starch-based polymers such as carboxymethyl starch and methylhydroxy starch
  • alginic acid polymers such as sodium alginate and propylene glycol alginate.
  • Examples of synthetic water-soluble polymers include polyvinyl alcohol, polyvinyl acetate, polyvinyl methyl ether, polyvinylpyrrolidone, copolymers of vinylpyrrolidone and vinyl acetate, vinyl polymers such as carboxyvinyl polymer; sodium polyacrylate, polyethyl acrylates, polyacrylamides, alkyl acrylate/methacrylate copolymers (e.g., (acrylates/alkyl acrylate (C10-30)) crosspolymers), alkanolamine polyacrylates, copolymers of alkyl methacrylates and dimethylaminoethyl methacrylates, Acrylic polymers such as poly 2-acrylamido-2-methylpropanesulfonic acid, polymethacryloyloxytrimethylammonium, (acryloyldimethyltaurate ammonium/VP) copolymer, and (dimethylacrylamide/acryloyldimethyltaurate Na) copolymer.
  • inorganic thickeners examples include bentonite, laponite, hectorite, magnesium aluminum silicate, and anhydrous silicic acid.
  • the amount of the water-phase thickener to be blended can be, for example, 0.1% by mass or more, 0.3% by mass or more, or 0.5% by mass or more relative to the total amount of the cosmetic. 0% by mass or less, 4.0% by mass or less, 3.0% by mass or less, or 2.0% by mass or less.
  • Oil phase thickener As the oil phase thickener, those commonly blended in cosmetics can be used in order to increase the viscosity of the oil phase. Specific examples include dextrin fatty acid esters, sucrose fatty acid esters, and fatty acids or salts thereof. Oil phase thickeners can be used alone or in combination of two or more.
  • Dextrin fatty acid ester is an ester of dextrin or reduced dextrin and higher fatty acid, and can be used without particular limitation as long as it is commonly used in cosmetics. It is preferable to use dextrin or reduced dextrin having an average degree of sugar polymerization of 3-100.
  • a saturated fatty acid having 8 to 22 carbon atoms is preferably used as a constituent fatty acid of the dextrin fatty acid ester. Specific examples include dextrin palmitate, dextrin oleate, dextrin stearate, dextrin myristate, and (palmitate/2-ethylhexanoate) dextrin.
  • sucrose fatty acid ester a linear or branched, saturated or unsaturated fatty acid having 12 to 22 carbon atoms can be preferably used.
  • sucrose caprylate, sucrose caprate, sucrose laurate, sucrose myristate, sucrose palmitate, sucrose stearate, sucrose oleate, sucrose Sugar erucate may be mentioned.
  • Fatty acids that are solid at room temperature can be used, such as myristic acid, palmitic acid, stearic acid, and behenic acid.
  • Salts of fatty acids include calcium salts, magnesium salts and aluminum salts thereof.
  • the blending amount of the oil phase thickener can be, for example, 0.1% by mass or more, 0.3% by mass or more, or 0.5% by mass or more with respect to the total amount of the cosmetic, or 15% by mass. % or less, 13 mass % or less, 10 mass % or less, 9.0 mass % or less, 8.0 mass % or less, 7.0 mass % or less, 6.0 mass % or less, 5.0 mass % or less, 4. It can be 0% by mass or less, 3.0% by mass or less, or 2.0% by mass or less.
  • the sunscreen cosmetic of the present disclosure contains oil.
  • oils are not particularly limited, and examples thereof include polar oils, hydrocarbon oils, and silicone oils.
  • An oil component can be used individually or in combination of 2 or more types.
  • oil-in-water cosmetic e.g., water-in-oil cosmetic, oily cosmetic.
  • oily cosmetic e.g., oil-in-water cosmetic, water-in-oil cosmetic, oily cosmetic.
  • the blending amount of the oil is, for example, 0.5% by mass or more, 1.0% by mass or more, 3.0% by mass or more, 5 0% by mass or more, 7.0% by mass or more, 10% by mass or more, 13% by mass or more, or 15% by mass or more, and 50% by mass or less, 40% by mass or less, and 30% by mass or less , 25% by mass or less, or 20% by mass or less.
  • the oil content may be, for example, 20% by mass or more, 25% by mass or more, or 30% by mass or more with respect to the total amount of the cosmetic. Moreover, it can be 70% by mass or less, 65% by mass or less, or 60% by mass or less.
  • the polar oil is not particularly limited, and for example, a polar oil having an IOB of 0.10 or more can be used. Also, an organic UV absorber with an IOB of 0.10 or more can be regarded as a polar oil.
  • the polar oil is preferably liquid at room temperature. In the present disclosure, “normal temperature” can mean a range of 20° C. ⁇ 15° C., for example.
  • the IOB value of the polar oil and the organic UV absorber that can be regarded as the polar oil can be, for example, 0.10 or more, 0.11 or more, 0.12 or more, or 0.13 or more, and 0.60 0.55 or less, 0.50 or less, 0.45 or less, or 0.40 or less.
  • the IOB value is an abbreviation for Inorganic/Organic Balance (inorganic/organic ratio), which is a value representing the ratio of the inorganic value to the organic value, and is an index indicating the degree of polarity of an organic compound. It becomes.
  • Organic UV Absorber with IOB of 0.10 or More examples include octocrylene, octylmethoxycinnamate (ethylhexyl methoxycinnamate), and polysilicone-15.
  • Such ultraviolet absorbers can be used alone or in combination of two or more.
  • octocrylene and octylmethoxycinnamate are preferable from the viewpoint of the solubility of the UV absorber which is solid at room temperature and the transparency of the cosmetic.
  • the organic UV absorbers with an IOB of 0.10 or more there are UV absorbers that exhibit odor. Therefore, when using such an organic UV absorber, from the viewpoint of suppressing the sunscreen odor, the Hereinafter, it is preferable to blend in the cosmetic at a ratio of 1.0% by mass or less, or 0.5% by mass or less, or it is more preferable not to blend such an organic UV absorber in the cosmetic. .
  • Hydrocarbon oils include, for example, petrolatum, liquid paraffin, tetraisobutane, hydrogenated polydecene, microcrystalline wax, olefin oligomers, isododecane, isohexadecane, squalane, polybutene, hydrogenated polybutene, polyisobutene, and hydrogenated polyisobutene.
  • silicone oils examples include linear silicone oils, branched silicone oils, and cyclic silicone oils.
  • linear silicone oils examples include dimethylpolysiloxane with a viscosity of 0.65 cs (sometimes referred to as “dimethicone”), dimethylpolysiloxane with a viscosity of 1 cs, dimethylpolysiloxane with a viscosity of 1.5 cs, and dimethyl with a viscosity of 2 cs.
  • dimethylpolysiloxane with a viscosity of 0.65 cs (sometimes referred to as "dimethicone")
  • dimethylpolysiloxane with a viscosity of 1 cs dimethylpolysiloxane with a viscosity of 1.5 cs
  • dimethyl with a viscosity of 2 cs examples of linear silicone oils.
  • branched silicone oils examples include methyltrimethicone, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane.
  • Cyclic silicone oils include, for example, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.
  • the sunscreen cosmetic of the present disclosure may contain an ultraviolet scattering agent.
  • ultraviolet scattering agent intends an agent capable of physically blocking ultraviolet rays by reflection or scattering. UV scattering agents can be used alone or in combination of two or more, and for example, commercially available products can be used as appropriate.
  • the blending amount of the ultraviolet scattering agent may be, for example, 1.0% by mass or more, 3.0% by mass or more, or 5.0% by mass or more, or 40% by mass, based on the total amount of the cosmetic. 35% by mass or less, 30% by mass or less, 25% by mass or less, 20% by mass or less, 15% by mass or less, or 10% by mass or less.
  • the ultraviolet scattering agent is not particularly limited, and examples thereof include metal oxide particles such as zinc oxide, titanium oxide, silicon oxide (silica), iron oxide, aluminum oxide, cerium oxide, chromium oxide, and tungsten oxide. can.
  • metal oxide particles such as zinc oxide, titanium oxide, silicon oxide (silica), iron oxide, aluminum oxide, cerium oxide, chromium oxide, and tungsten oxide.
  • Other examples include particles of barium sulfate, talc, mica, salicite, kaolin, titanium mica, Prussian blue, and chromium hydroxide.
  • zinc oxide particles and titanium oxide particles are preferable from the viewpoint of sunscreen performance and the like.
  • the size of the UV scattering agent is not particularly limited, and can be appropriately set so as to achieve the desired sunscreen performance.
  • the average primary particle size of the ultraviolet scattering agent can be 10 nm or more, 20 nm or more, or 30 nm or more, and can be 100 nm or less, 70 nm or less, or 50 nm or less.
  • the “average primary particle size” means the size of the primary particles of the powder measured by a commonly used method, specifically, observed with a transmission electron microscope. It is a value obtained as an arithmetic mean of the length of the major axis and the length of the minor axis of 10 or more particles.
  • the shape of the ultraviolet scattering agent is not particularly limited, and examples include spherical, elliptical, flaky, and crushed shapes.
  • the UV scattering agent may be surface-treated.
  • Surface treatment can be implemented by a well-known method.
  • a surface-treated commercially available UV scattering agent may be used.
  • hydrophobization treatment is preferable as the surface treatment.
  • hydrophobizing agents used for hydrophobizing treatment include various compounds that can be used for hydrophobizing surface treatment of UV scattering agents blended in cosmetics, such as fatty acids, silicone compounds, fluorine compounds, and silane cups. ring agents and quaternary ammonium salt compounds. Hydrophobizing agents can be used alone or in combination of two or more.
  • fatty acids examples include palmitic acid, isostearic acid, stearic acid, lauric acid, myristic acid, behenic acid, oleic acid, rosin acid, and 12-hydroxystearic acid.
  • silicone compounds include methylhydrogenpolysiloxane, dimethylpolysiloxane (dimethicone), and methylphenylpolysiloxane.
  • fluorine compounds include perfluoroalkyl group-containing esters, perfluoropolyethers, and polymers having perfluoroalkyl groups.
  • silane coupling agents include fluoroalkylsilane compounds such as perfluoroalkylsilane, trifluoromethylethyltrimethoxysilane, heptadecafluorodecyltrimethoxysilane; methyltriethoxysilane, ethyltriethoxysilane, hexyltriethoxysilane; , octyltriethoxysilane, and triethoxycaprylylsilane.
  • fluoroalkylsilane compounds such as perfluoroalkylsilane, trifluoromethylethyltrimethoxysilane, heptadecafluorodecyltrimethoxysilane; methyltriethoxysilane, ethyltriethoxysilane, hexyltriethoxysilane; , octyltriethoxysilane, and triethoxycapry
  • quaternary ammonium salt compounds include stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, cetyltrimethylammonium chloride, distearyldimethylammonium chloride, dibehenyldimethylammonium chloride, dicetyldimethylammonium chloride, stearyldimethylbenzylammonium chloride, and dilauryldimethylammonium chloride.
  • the cosmetic composition of the present disclosure uses an ultraviolet absorber that is solid at room temperature in addition to the salicylic acid derivative ultraviolet absorber, so it can exhibit excellent ultraviolet protection performance.
  • the cosmetic of the present disclosure can reduce the amount of the UV scattering agent that has conventionally been blended in the sunscreen cosmetic in order to enhance the UV protection performance. While the UV scattering agent can enhance the UV protection performance, it causes the whiteness of the sunscreen cosmetic. Since the cosmetic of the present disclosure can exhibit excellent UV protection performance even when the amount of the UV scattering agent is small, it is possible to provide a sunscreen cosmetic with excellent transparency.
  • the amount of the UV scattering agent is 1.0% by mass or less, 0.5% by mass or less, or 0.1% by mass or less with respect to the total amount of the cosmetic. It is preferable that there is a UV scattering agent, and it is more preferable that the UV scattering agent is not blended in the cosmetic.
  • the sunscreen cosmetic of the present disclosure can be provided in the form of, for example, an oily cosmetic, a water-in-oil emulsified cosmetic, or an oil-in-water emulsified cosmetic.
  • Such cosmetics can be prepared, for example, by known methods such as a dispersion method and an aggregation method.
  • a heating step is typically provided in order to mix the salicylic acid derivative ultraviolet absorber and the ultraviolet absorber that is solid at room temperature.
  • Cosmetics containing these ultraviolet absorbers when subjected to a heating step, exhibit a peculiar sunscreen odor that accompanies heating of these ultraviolet absorbers. Therefore, even if the heating step is performed, the odor of the sunscreen can be preferably improved.
  • the temperature conditions for the heating step are not particularly limited, and can be, for example, 70° C. or higher, 75° C. or higher, or 80° C. or higher, and 100° C. or lower, 95° C. or lower, 90° C. or lower, or 85° C. or lower. can be
  • the production of the cosmetic of the present disclosure may include any steps other than the heating step, such as a slow cooling step.
  • the dispersion method is a method of refining the aggregates of the dispersed phase by mechanical force. Specifically, it is a method of emulsifying using the crushing force of an emulsifier, and examples of such a method include a high-pressure emulsification method in which a high-pressure homogenizer is used to apply a high shearing force.
  • the coagulation method is a colloidal preparation method that utilizes surface chemical properties, and is a method in which a uniformly dissolved state is brought into a supersaturated state by some means to emerge as a dispersed phase.
  • the HLB temperature emulsification method, the phase inversion emulsification method, the non-aqueous emulsification method, the D phase emulsification method, the liquid crystal emulsification method, and the like are known.
  • the dosage form of the sunscreen cosmetic for example, emulsion-like, cream-like, and liquid-like dosage forms can be adopted.
  • the stopping odor is more preferably improved.
  • the unscented control sample was sniffed before sniffing the next test sample.
  • a break of about 10 minutes or more was given every about 30 minutes.
  • Test Example 1 Confirmation of improvement effect of sunscreen odor due to difference in fragrance>>
  • Test Example 1 the effect of improving the sunscreen odor due to the difference in the blended perfume was examined. The results are shown in Tables 1-3.
  • Example 1 Using the formulations shown in Table 1, oily cosmetics were produced by the following method.
  • Salicylic acid derivative UV absorbers ethylhexyl salicylate and homosalate, UV absorber bisethylhexyloxyphenol methoxyphenyltriazine that is solid at room temperature, and thickener dextrin palmitate are mixed while heated to 80° C., followed by UV irradiation. Absorbent parts were prepared.
  • Examples 2-24 and Comparative Examples 1-2 Oil-based cosmetics of Examples 2 to 24 and Comparative Examples 1 and 2 were obtained in the same manner as in Example 1, except that the type and blending amount of the perfume was changed to those shown in Tables 1 to 3.
  • the cosmetic containing the specific fragrance of the present disclosure uses both a salicylic acid derivative ultraviolet absorber and a solid ultraviolet absorber at room temperature, and these are used in the preparation of the cosmetic. It was confirmed that the peculiar sunscreen smell generated when the was heated could be suitably improved.
  • Test Example 2 Confirmation of the effect of improving sunscreen odor due to the difference in ultraviolet absorbers that are solid at room temperature>>
  • Test Example 2 the effect of improving the sunscreen odor was examined when diethylaminohydroxybenzoyl hexyl benzoate was used as an ultraviolet absorber that is solid at room temperature. Table 4 shows the results.
  • Examples 25-27 and Comparative Examples 3-4 Oil-based cosmetics of Examples 25-27 and Comparative Examples 3-4 were obtained in the same manner as in Example 1, except that the formulations were changed to those shown in Table 4.
  • the cosmetic containing the specific fragrance of the present disclosure uses both a salicylic acid derivative UV absorber and a solid UV absorber at room temperature, regardless of the type of UV absorber that is solid at room temperature. In addition, it was confirmed that the peculiar sunscreen odor that occurs when these are heated in the preparation of cosmetics can be suitably improved.

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Abstract

La présente invention concerne un produit cosmétique de protection solaire présentant une odeur de protection solaire spécifique améliorée générée lorsqu'un absorbeur d'ultraviolets dérivé de l'acide salicylique et un absorbeur d'ultraviolets, qui est solide à température ambiante, sont utilisés en association.　Le produit cosmétique de protection solaire selon la présente invention comprend un parfum spécifique en plus d'un absorbeur d'ultraviolets dérivé de l'acide salicylique et d'un absorbeur d'ultraviolets qui est solide à température ambiante.
PCT/JP2022/039213 2021-11-05 2022-10-21 Produit cosmétique de protection solaire WO2023079977A1 (fr)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150265510A1 (en) * 2014-03-18 2015-09-24 Symrise Ag Coated titanium dioxide to reduce the whitening effect on skin
JP2020121929A (ja) * 2019-01-29 2020-08-13 株式会社 資生堂 皮膚外用剤および紫外線防御効果の向上方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150265510A1 (en) * 2014-03-18 2015-09-24 Symrise Ag Coated titanium dioxide to reduce the whitening effect on skin
JP2020121929A (ja) * 2019-01-29 2020-08-13 株式会社 資生堂 皮膚外用剤および紫外線防御効果の向上方法

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DATABASE GNPD MINTEL; August 2014 (2014-08-01), TESCO: "Sun Lotion SPF 50+", XP093063963, Database accession no. 2347466 *
DATABASE GNPD MINTEL; December 2015 (2015-12-01), BEIERSDORF: "Invisible Protection Transparent Spray SPF 30 PA++", XP093063965, Database accession no. 3620407 *
DATABASE GNPD MINTEL; December 2019 (2019-12-01), JOHNSON & JOHNSON: "Shine Control Sunscreen SPF 60", XP093063966, Database accession no. 7125365 *
DATABASE GNPD MINTEL; May 2017 (2017-05-01), ORION PHARMA: "Sunscreen Cream SPF 50+ for Children", XP093063967, Database accession no. 4789247 *
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