WO2021112208A1 - Composition de filtre solaire à base d'émulsion huile-dans-eau - Google Patents

Composition de filtre solaire à base d'émulsion huile-dans-eau Download PDF

Info

Publication number
WO2021112208A1
WO2021112208A1 PCT/JP2020/045165 JP2020045165W WO2021112208A1 WO 2021112208 A1 WO2021112208 A1 WO 2021112208A1 JP 2020045165 W JP2020045165 W JP 2020045165W WO 2021112208 A1 WO2021112208 A1 WO 2021112208A1
Authority
WO
WIPO (PCT)
Prior art keywords
cosmetic
oil
cosmetic according
mass
water
Prior art date
Application number
PCT/JP2020/045165
Other languages
English (en)
Japanese (ja)
Inventor
紗希 鎌田
圭太 西田
Original Assignee
株式会社 資生堂
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社 資生堂 filed Critical 株式会社 資生堂
Priority to CN202080083276.4A priority Critical patent/CN114760981A/zh
Priority to JP2021562738A priority patent/JPWO2021112208A1/ja
Publication of WO2021112208A1 publication Critical patent/WO2021112208A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04—Dispersions; Emulsions
    • A61K8/06—Emulsions
    • 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
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/29—Titanium; Compounds thereof
    • 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
    • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
    • 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
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • 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

  • the present invention relates to an oil-in-water emulsified sunscreen cosmetic. More specifically, in an oil-in-water emulsified sunscreen cosmetic containing a hydrophobized ultraviolet scattering agent, ultraviolet rays are scattered in the internal phase (oil phase) while maintaining the fresh feeling of use peculiar to the oil-in-water emulsion. It relates to an oil-in-water emulsified sunscreen cosmetic that can be mixed with a high amount of agent.
  • An oil-in-water emulsified sunscreen cosmetic in which an ultraviolet scattering agent is dispersed in an internal phase (oil phase) is useful as a prescription system that can achieve both a fresh feeling of use and an ultraviolet protection effect.
  • an ultraviolet scattering agent is to be blended in order to increase (also referred to as "SPF")
  • a large amount of a surfactant as an emulsifying agent may be required. If the amount of the surfactant compounded is large, stickiness may occur. Therefore, various measures have been taken to improve the usability.
  • a hydrophilic surfactant is prepared by blending an alkyl cellulose hydrophobically modified with an alkyl group having 14 to 22 carbon atoms as an emulsifier. It is described that the oil phase containing powder can be stably emulsified by showing a fresh feeling of use even if it is not substantially blended.
  • the ultraviolet scattering agent it was difficult to maintain the emulsion stability and the feeling of use.
  • the present invention has been made in view of the above circumstances, and by highly blending a hydrophobized ultraviolet scattering agent in the oil phase, a high SPF can be achieved, and at the same time, the emulsification stability and usability are excellent. It is an object of the present invention to provide an oil-in-water emulsified sunscreen cosmetic.
  • the present inventors have made oil in water by blending a water-soluble alkyl-substituted polysaccharide derivative and an ionic surfactant in an oil-in-water emulsified cosmetic.
  • the hydrophobized ultraviolet scattering agent can be stably and highly blended in the oil phase without impairing the fresh feeling of use of the mold emulsion, and have completed the present invention.
  • the present invention (A) Water-soluble alkyl-substituted polysaccharide derivative, (B) Hydrophobicized UV scatterer, (C) Containing an ionic surfactant, Provided is an oil-in-water emulsified sunscreen cosmetic characterized in that the ultraviolet scattering agent (B) is dispersed in the oil phase.
  • the oil-in-water emulsified sunscreen cosmetic of the present invention has the above constitution, so that the hydrophobized ultraviolet scattering agent is uniformly and stable in the oil phase without impairing the fresh feeling of use of the oil-in-water emulsion. Can be highly blended.
  • the usability can be improved by adding an aqueous phase thickener in addition to the above-mentioned components (A) to (C).
  • an aqueous phase thickener in addition to the above-mentioned components (A) to (C).
  • a high amount of UV scatterer can be blended, it is possible to achieve a high SPF without blending a UV absorber, and it is possible to use "UV absorber-free" or "non-chemical formulation”. Sunscreen cosmetics can be realized.
  • the oil-in-water emulsified sunscreen cosmetics of the present invention are (A) a water-soluble alkyl-substituted polysaccharide derivative, (B) a hydrophobized ultraviolet scattering agent, and (C) ionic. It is characterized by containing a surfactant as an essential component.
  • cosmetics are (A) a water-soluble alkyl-substituted polysaccharide derivative, (B) a hydrophobized ultraviolet scattering agent, and (C) ionic. It is characterized by containing a surfactant as an essential component.
  • the (A) water-soluble alkyl-substituted polysaccharide derivative (hereinafter, also simply referred to as “component (A)”) used in the cosmetics of the present invention is not particularly limited, but is a hydrophobically modified alkyl cellulose or a hydrophobically modified sulfonated polysaccharide derivative. Etc. can be exemplified.
  • alkyl cellulose hydrophobically modified with an alkyl group having 14 to 22 carbon atoms is preferable. More specifically, it is a compound in which a long-chain alkyl group which is a hydrophobic group is introduced into a water-soluble cellulose ether derivative, and a compound represented by the following general formula (I) is preferable.
  • R may be the same or different, hydrogen atom, alkyl group having 1 to 4 carbon atoms, group- [CH 2 CH (CH 3 ) O] m- H (in the formula, m is 1 to 5, preferably an integer of 1 to 3), group-CH 2 CH 2 OH, and group-CH 2 CH (OH) CH 2 OR'(in the formula, R'has a carbon atom number. It is one or more groups selected from (14 to 22 alkyl groups), but must include the group -CH 2 CH (OH) CH 2 OR'.
  • A is a group- (CH 2 ) q- (q is an integer of 1 to 3, preferably 1), and n is 100 to 10,000, preferably 500 to 5. It is an integer of 000. ]
  • the method for producing the hydrophobically modified alkyl cellulose of the formula (I) is generally a water-soluble cellulose ether derivative as a base, specifically, methyl cellulose (R is a hydrogen atom or a methyl group), ethyl cellulose (R is a hydrogen atom or ethyl).
  • propyl cellulose (R is hydrogen atom or propyl group), butyl cellulose (R is hydrogen atom or butyl group), hydroxypropyl cellulose [R is hydrogen atom or hydroxypropyl group (group- [CH 2 CH (CH 3 )) O] m- H (in the formula, m is an integer of 1 to 5, preferably 1 to 3)], hydroxypropylmethyl cellulose [R is a hydrogen atom, a methyl group or a hydroxypropyl group (group- [CH] 2 CH (CH 3 ) O] m- H (in the formula, m is an integer of 1 to 5, preferably 1 to 3))], etc., a long-chain alkyl group having 14 to 22 carbon atoms.
  • a compound for introduction specifically, a long-chain alkylglycidyl ether of the following formula (II) can be obtained by contacting with each other in the presence of an alkali catalyst.
  • R' is an alkyl group having 14 to 22 carbon atoms.
  • the content of the group-CH 2 CH (OH) CH 2 OR'introduced into the hydrophobically modified alkyl cellulose of the present invention is about 0.1 to 5.0% by mass with respect to the entire hydrophobic modified alkyl cellulose. preferable.
  • the molar ratio at the time of the reaction of the water-soluble cellulose ester derivative and the long-chain alkyl glycidyl ether, the reaction time, the type of the alkali catalyst and the like may be appropriately selected for production.
  • purification steps such as neutralization, filtration, washing, drying, and sieving of the reaction product may be performed.
  • R in the formula (I) is a hydrogen atom, a methyl group, or a group- [CH 2 CH (). CH 3 ) O] m H and group-CH 2 CH (OH) CH 2 OR'is one of the four groups, the q of the group A is 1, and the group A is a methylene group).
  • R'in the long-chain alkylglycidyl ether of the formula (II) is an alkyl group having 14 to 22 carbon atoms, preferably an alkyl group having 14 to 20 carbon atoms, and more preferably a stearyl group having 18 carbon atoms (-C 18). H 37 ).
  • R' is less than 14 or 23 or more, the emulsion stability of the obtained hydrophobically modified alkyl cellulose may not be sufficient.
  • the weight average molecular weight of the hydrophobically modified alkyl cellulose is preferably 100,000 to 1,000,000, more preferably 300,000 to 800,000, still more preferably 550,000 to 750,000.
  • the hydrophobically modified sulfonated polysaccharide derivative has a polysaccharide or a derivative thereof as a basic skeleton, and a part or all of the hydrogen atoms of the hydroxyl group are substituted with the following substituents (a) and (b). It is preferable that it is a thing.
  • the substituent (a) is selected from an alkyl glyceryl ether group having a linear or branched alkyl group having 10 to 40 carbon atoms and an alkenyl glyceryl ether group having a linear or branched alkenyl group having 10 to 40 carbon atoms. It is preferably a glyceryl ether group having a hydrophobic portion.
  • the substituent (b) is preferably a sulfoalkyl group having 1 to 5 carbon atoms or a salt thereof, which may be substituted with a hydroxyl group.
  • water-soluble means one that dissolves in water at 25 ° C. in an amount of 0.001% by mass or more.
  • substituent (a) are not particularly limited, but are 2-hydroxy-3-alkoxypropyl group, 2-alkoxy-1- (hydroxymethyl) ethyl group, 2-hydroxy-3-alkenyloxypropyl group, Examples include 2-alkenyloxy-1- (hydroxymethyl) ethyl groups.
  • alkyl group or alkenyl group having 10 to 40 carbon atoms substituted with these glyceryl ether groups a linear or branched alkyl group or alkenyl group having 12 to 36 carbon atoms and 16 to 24 carbon atoms is preferable. Of these, an alkyl group is preferable, and a linear alkyl group is more preferable.
  • the specific example of the substituent (b) is not particularly limited, but is 2-sulfoethyl group, 3-sulfopropyl group, 3-sulfo-2-hydroxypropyl group, 2-sulfo-1- (hydroxymethyl) ethyl.
  • Groups and the like may be mentioned, and all or part of them may be salts with alkali metals such as Na and K, alkaline earth metals such as Ca and Mg, organic cation groups such as amines, and ammonium ions.
  • the degree of substitution of the substituent (a) is preferably 0.001 to 1, more preferably 0.002 to 0.5, and even more preferably 0.003 to 0.1 per constituent monosaccharide residue.
  • the degree of substitution of the substituent (b) is preferably 0.01 to 2.5, more preferably 0.02 to 2, and even more preferably 0.1 to 1.5 per constituent monosaccharide residue.
  • the ratio of the number of substituents (a) to the number of substituents (b) is preferably 1: 1,000 to 100: 1, more preferably 1: 500 to 10: 1, and even more preferably 1: 300 to 10 :. It is 1.
  • the polysaccharide or derivative thereof which is the basic skeleton of the hydrophobized modified sulfonated polysaccharide derivative, is not particularly limited, and examples thereof include cellulose, hydroxyethyl cellulose, methyl cellulose, ethyl cellulose, and hydroxypropyl cellulose.
  • the weight average molecular weight of these polysaccharides or derivatives thereof is preferably 10,000 to 10,000,000, more preferably 100,000 to 5,000,000, and even more preferably 300,000 to 2,000,000. is there.
  • the component (A) used in the cosmetic of the present invention is not particularly limited, but is, for example, hydrophobically modified alkyl cellulose such as stearoxyhydroxypropylmethylcellulose and laureth-13PG hydroxyethylcellulose; hydrophobic such as stearoxyPG hydroxyethylcellulosesulfonate.
  • hydrophobic such as stearoxyPG hydroxyethylcellulosesulfonate.
  • Examples include denatured sulfonated polysaccharide derivatives. Of these, stearoxy hydroxypropyl methyl cellulose or stearoxy PG hydroxyethyl cellulose sulfonate is more preferable.
  • a commercially available product can also be used as the component (A).
  • examples of stearoxyhydroxypropylmethylcellulose include Sangelose 60L (manufactured by Daido Kasei Kogyo Co., Ltd.), Sangelose 90L (manufactured by Daido Kasei Kogyo Co., Ltd.), and Poise 310 (manufactured by Kao Corporation) as stearoxy PG hydroxyethyl cellulose sulfonate. ) Etc. can be mentioned.
  • the blending amount of the component (A) in the cosmetic of the present invention is 0.05 to 1% by mass, preferably 0.1 to 0.5% by mass, and more preferably 0.1 with respect to the total amount of the cosmetic. It is about 0.3% by mass. If it is less than 0.05% by mass, sufficient emulsification stability cannot be obtained, and even if it is blended in excess of 1% by mass, it is difficult to obtain a further increase in the effect.
  • component (B) As the base material of the (B) hydrophobized ultraviolet scattering agent (hereinafter, also simply referred to as “component (B)”) used in the cosmetics of the present invention, the ultraviolet scattering effect usually used in sunscreen cosmetics and the like. It is not particularly limited as long as it is a powder having. In the cosmetic of the present invention, zinc oxide or titanium oxide powder is preferably used. The zinc oxide and titanium oxide powders are not particularly limited and may be appropriately selected from those usually used in cosmetics.
  • the component (B) used in the cosmetic of the present invention is an ultraviolet scattering agent having a hydrophobic surface obtained by hydrophobizing the surface of a base material such as zinc oxide or titanium oxide.
  • the method of surface hydrophobization is not particularly limited, but silicone treatment of methylhydrogenpolysiloxane, methylpolysiloxane, etc.; fluorine treatment with perfluoroalkyl phosphate, perfluoroalcohol, etc.; amino acids with N-acylglutamic acid, etc. Treatment; In addition, lecithin treatment; metal soap treatment; fatty acid treatment; alkyl phosphate ester treatment and the like can be mentioned.
  • component (B) of the present invention one type or a combination of two or more types can be used.
  • the blending amount of the component (B) in the cosmetic of the present invention is preferably 10 to 40% by mass, more preferably 12 to 30% by mass, based on the total amount of the cosmetic. If it is less than 10% by mass, the ultraviolet protection effect cannot be sufficiently obtained, and if it exceeds 40% by mass, the emulsion stability tends to deteriorate.
  • ionic surfactants may be irritating to the skin
  • non-rinse type cosmetics such as skin care cosmetics (specially).
  • a hydrophobized ultraviolet scattering agent is stably and uniformly applied to the internal phase (oil phase). It has been found that a cosmetic that can be blended and has a good usability can be obtained.
  • the (C) ionic surfactant used in the cosmetics of the present invention (hereinafter, also simply referred to as "component (C)") is usually used in cosmetics, and is an anionic surfactant and a cation. It can be selected from a surfactant or an amphoteric surfactant, and these can be used alone or in combination of two or more.
  • the molecular weight thereof is not particularly limited, but is preferably 600 or less.
  • the anionic surfactant is not particularly limited, but for example, fatty acid soaps such as sodium laurate and sodium palmitate; salts of higher alkyl sulfate esters such as sodium lauryl sulfate and potassium lauryl sulfate; polyoxyethylene lauryl sulfate and triethanol.
  • Alkyl ether sulfate ester salt such as polyoxyethylene lauryl sulfate sodium
  • N-acylsarcosic acid such as lauroyl sarcosin sodium
  • phosphate esters such as sodium polyoxyethylene oleyl ether phosphate and sodium polyoxyethylene stearyl ether phosphate
  • sodium di-2-ethylhexyl sulfosuccinate Monolauroyl monoethanolamide
  • sodium dodecylbenzene sulfonate dodecylbenzene sulfonate, do
  • the cationic surfactant is not particularly limited, but is, for example, an alkyltrimethylammonium salt such as stearyltrimethylammonium chloride or lauryltrimethylammonium chloride; a dialkyldimethylammonium salt such as distearyldimethylammonium chloride; poly (N, N'-).
  • an alkyltrimethylammonium salt such as stearyltrimethylammonium chloride or lauryltrimethylammonium chloride
  • a dialkyldimethylammonium salt such as distearyldimethylammonium chloride
  • Alkylpyridinium salts such as dimethyl-3,5-methylenepiperidinium), cetylpyridinium chloride; alkyl quaternary ammonium salts, alkyldimethylbenzylammonium salts, alkylisoquinolinium salts, dialkylmoriphonium salts, polyoxyethylenealkyl Amin, alkylamine salt, polyamine fatty acid derivative, amylalcoal fatty acid derivative, benzalconium chloride, benzethonium chloride, cationic polymer, ⁇ -N acrylate, N-dimethyl-N-ethylammonioethyl vinylpyrrolidone chloride. Coalescence and the like can be mentioned.
  • amphoteric tenside is not particularly limited, but for example, 2-undecyl-N, N, N-tris (hydroxyethylcarboxymethyl) -2-imidazolin sodium, 2-cocoyl-2-imidazolinium hydroxide-1.
  • -Imidazoline amphoteric tenside agents such as carboxyethyl oxydisodium; 2-heptadecyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betainee, lauryldimethylaminoacetic acid betainee, coconut oil fatty acid amide propyl betaine, alkyl betaine, amide Betaine-based amphoteric tensides such as betaine and sulfobetaine; lecithin, hydrogenated soybean phospholipid, and the like can be mentioned.
  • the blending amount of the component (C) in the cosmetic of the present invention is preferably 0.01 to 3% by mass, more preferably 0.04 to 1% by mass, based on the total amount of the cosmetic. If the blending amount of the component (C) is out of the above range, the emulsification stability may decrease.
  • the usability can be improved by further blending an aqueous phase thickener other than (A) a water-soluble alkyl-substituted polysaccharide derivative.
  • the aqueous phase thickener used in the present invention is not particularly limited, and is, for example, a plant-based polymer such as Arabic gum, tragacant gum, galactan, guagam, carrageenan, pectin, quince seed (malmero) extract, and brown algae powder; Micromolecular polymers such as xanthan gum, dextran, purulan, succinoglycan; animal polymers such as collagen, casein, albumin, gelatin; starches such as carboxymethyl starch and methylhydroxy starch; polyvinyl alcohol, polyvinyl acetate, polyvinyl methyl Vinyl polymers such as ether, polyvinylpyrrolidone, vinylpyrrolidone and vinylacetate copolymer, carboxyvinyl polymer; sodium polyacryl
  • a thickener having a low salt resistance which causes a decrease in viscosity due to the presence of an electrolyte having a concentration in a range generally blended in cosmetics (hereinafter, "electrolyte concentration").
  • electrolyte concentration an electrolyte having a concentration in a range generally blended in cosmetics
  • the "unique fresh feeling of use" in the present invention means that when a cosmetic is applied to the skin with fingers or the like, the viscosity rapidly decreases and the skin feels like it collapses, and at the same time, it has a very fresh feeling that spreads on the skin. Means to give.
  • the thickener whose viscosity decreases due to an increase in the electrolyte concentration is not particularly limited, and is, for example, vinyl such as polyvinyl alcohol, polyvinyl acetate, polyvinyl methyl ether, polyvinyl pyrrolidone, vinyl pyrrolidone and vinyl acetate copolymer, and carboxyvinyl polymer.
  • High polymers sodium polyacrylate, polyethyl acrylate, alkanolamine polyacrylate, copolymers of alkyl methacrylate and dimethylaminoethyl methacrylate, poly 2-acrylamide-2-methylpropansulfonic acid, polymethacryloyloxytrimethylammonium, (acryloyl)
  • acrylic polymers such as dimethyl taurine ammonium / VP) copolymer and (dimethyl acrylamide / acryloyl dimethyl taurine Na) cross polymer.
  • the cosmetic of the present invention has an appropriate emulsion stability due to the (A) water-soluble alkyl-substituted polysaccharide derivative, and the components contained in the internal phase are likely to flow out due to a stimulus such as application of the cosmetic. ing. Therefore, when the cosmetic of the present invention contains a thickener other than the (A) water-soluble alkyl-substituted polysaccharide derivative, which causes a decrease in viscosity due to an increase in the electrolyte concentration, the cosmetic is applied to the skin.
  • an ultraviolet scattering agent or the like which is an electrolyte, flows out from the internal phase and comes into contact with the thickener in the aqueous phase, resulting in a rapid decrease in the viscosity of the cosmetic. Due to this change in viscosity, it is considered that the cosmetic of the present invention can obtain a unique and fresh feeling of use that melts when the cosmetic is applied to the skin.
  • an anionic polymer when used as the aqueous phase thickener, it interacts with a cationic surfactant and tends to slightly reduce the emulsion stability. Therefore, in the cosmetic of the present invention, when an aqueous phase thickener is blended, it is more preferable to use an anionic surfactant or an amphoteric surfactant as the (C) ionic surfactant.
  • the blending amount of the aqueous phase thickener in the cosmetic of the present invention is preferably 0.05 to 3% by mass, more preferably 0.1 to 2% by mass, still more preferably 0.15, based on the total amount of the cosmetic. ⁇ 1% by mass. If it is less than 0.05% by mass, the function as a thickener (viscosity adjustment and emulsion stabilization) is difficult to be exhibited. If it is blended in excess of 3% by mass, stickiness or sliminess may occur.
  • the oil component constituting the oil phase of the cosmetic of the present invention may be one or more selected from the oils normally used in cosmetics, and is not particularly limited.
  • the blending amount of the oil is preferably 5 to 40% by mass, more preferably 10 to 40% by mass, and further preferably 20 to 35% by mass with respect to the total amount of the cosmetic.
  • the emulsion stability can be further improved by using 55% by mass or more, preferably 70% by mass or more, more preferably 80% by mass or more of the oil content as the polar oil.
  • the upper limit of the ratio of polar oil to the oil content is not limited, and for example, 100% of the oil content may be polar oil.
  • the "polar oil” in the present invention may be any oil having a high polarity among the oils usually used in cosmetics, and is not particularly limited.
  • the relative permittivity is about 5 or more, preferably about 10 or more. Oil content is used.
  • Ester oil is a typical example of the polar oil in the cosmetic of the present invention.
  • Suitable ester oils used in the cosmetics of the present invention are not particularly limited, but are limited, but are not limited, tripropylene glycol dineopentanoate, isononyl isononanoate, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate.
  • non-polar oils are low-polarity oils usually used in cosmetics, for example, having a relative permittivity of less than about 5. It can be one kind or two or more kinds selected from the oil content of.
  • the non-polar oil used in the cosmetics of the present invention is not particularly limited, but is preferably selected from volatile or non-volatile silicone oils and hydrocarbon oils.
  • chain silicone oils such as polydimethylsiloxane, methylphenylpolysiloxane (diphenylsiloxyphenyltrimethicone), and methylhydrogenpolysiloxane; cyclics such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.
  • Silicone oil examples thereof include hydrocarbon oils such as decane, dodecane, isododecane, isohexadecane, liquid paraffin, squalane, squalane, and paraffin.
  • the UV absorber may cause irritation to the skin depending on the constitution of the user. Further, it is known that an ultraviolet absorber such as ethylhexyl methoxycinnamate causes irritation when it gets into the eyes (see JP-A-2015-124172).
  • an ultraviolet absorber such as ethylhexyl methoxycinnamate causes irritation when it gets into the eyes (see JP-A-2015-124172).
  • the cosmetic of the present invention since a high amount of UV scattering agent can be blended, high UV protection can be obtained without blending a UV absorber. Therefore, the cosmetic of the present invention includes an embodiment in which an ultraviolet absorber is not blended. According to the present invention, it is possible to realize a "ultraviolet absorber-free" or "non-chemical formulation” sunscreen cosmetic.
  • various ingredients usually blended in the cosmetic can be blended within a range that does not impair the effects of the present invention.
  • Specific examples include glycols such as propylene glycol, dipropylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, diethylene glycol, triethylene glycol and polyethylene glycol; glycerin such as glycerin, diglycerin and polyglycerin.
  • sugar alcohols such as sorbitol, mannitol, martitol, xylitol, erythritol
  • sugars such as fructose, glucose, galactose, maltose, lactose, trehalose
  • natural pigments such as chlorophyll, ⁇ -carotene
  • magnesium ascorbate ascorbin Vitamins such as acid glucoside, vitamin B6 hydrochloride, pantothenyl ethyl ether
  • agents such as bactericides, anti-inflammatory agents, preservatives, plant extracts, amino acids, refreshing agents
  • lower alcohols such as ethanol and isopropyl alcohol
  • phenoxyethanol, benzyl Aromatic alcohols such as alcohols are included, but are not limited thereto.
  • Lower alcohols such as ethanol may be used to improve the dispersibility of the powder.
  • the powder since the powder is present in the oil phase, a cosmetic having good powder dispersibility can be obtained without adding a lower alcohol. Therefore, even when ethanol is blended, it is preferably 5% by mass or less, more preferably 3% by mass or less, still more preferably 1% by mass or less, based on the total amount of the cosmetic. By reducing the amount of ethanol blended, a hypoallergenic cosmetic can be realized.
  • the cosmetic of the present invention can be prepared according to the method usually used for oil-in-water emulsified cosmetics. That is, it can be prepared by mixing the aqueous phase component and the oil phase component separately, adding the oil phase component while stirring the aqueous phase component, and emulsifying.
  • the cosmetic of the present invention is not particularly limited, but usually has an internal phase (oil phase) having an average particle size of about 15 ⁇ m or less.
  • the cosmetic of the present invention is suitably used in various dosage forms such as creamy, milky liquid, and liquid.
  • the product form may be a skin care cosmetic having a sunscreen effect, a makeup base having a sunscreen effect, a makeup cosmetic such as a foundation, or the like.
  • the present invention will be described in more detail with reference to specific examples below, but the present invention is not limited to these examples.
  • the blending amount represents mass% unless otherwise specified.
  • Oil-in-water emulsified cosmetics were prepared by a conventional method according to the formulations shown in Tables 1 to 3 below, and their characteristics were evaluated according to the following evaluation methods and evaluation criteria. The results are also shown in the table.
  • Emulsification stability Dispersibility of the hydrophobized ultraviolet scattering agent The state of the sample after preparation and the state of the sample filled in the screw tube and observed after 2 weeks were visually evaluated. ⁇ Evaluation criteria> A: It was able to emulsify stably, and no separation or aggregation over time was observed. B: Stable emulsification was possible, and separation and aggregation over time were observed, but there was no problem in use. C: Stable emulsification was possible, but separation and aggregation over time were observed. D: Can not emulsify.
  • the molecular weight of the blended ionic surfactant is 600 or less (Examples 1 to 6, 8, 11 to 18), it is more excellent than when the molecular weight is larger than 600 (Examples 9 and 10). It showed emulsion stability.
  • the cationic surfactant even if the molecular weight is 600 or less, as a result of coexistence with the aqueous phase thickener which is an anionic acrylic polymer, separation and aggregation with time are slightly observed. However, there was sufficient emulsion stability (Example 7).

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Dermatology (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Cosmetics (AREA)

Abstract

La présente invention concerne une composition de filtre solaire à base d'émulsion huile-dans-eau qui est susceptible d'atteindre un SPF élevé par mélange d'une grande quantité d'un agent rendu hydrophobe de diffusion d'ultraviolet dans la phase huileuse, tout en ayant une excellente stabilité d'émulsion et une excellente sensation d'utilisation en même temps. Une composition cosmétique selon la présente invention est caractérisée en ce qu'elle est une composition de filtre solaire à base d'émulsion huile-dans-eau qui contient (A) de 0,05 % en masse à 1 % en masse d'un dérivé de polysaccharide substitué par un groupe alkyle soluble dans l'eau, (B) d'un agent rendu hydrophobe de diffusion d'ultraviolet et (C) un tensioactif ionique, l'agent rendu hydrophobe de diffusion d'ultraviolet (B) étant dispersé dans la phase huileuse.
PCT/JP2020/045165 2019-12-04 2020-12-04 Composition de filtre solaire à base d'émulsion huile-dans-eau WO2021112208A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080083276.4A CN114760981A (zh) 2019-12-04 2020-12-04 水包油型乳化防晒化妆品
JP2021562738A JPWO2021112208A1 (fr) 2019-12-04 2020-12-04

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-219978 2019-12-04
JP2019219978 2019-12-04

Publications (1)

Publication Number Publication Date
WO2021112208A1 true WO2021112208A1 (fr) 2021-06-10

Family

ID=76221736

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/045165 WO2021112208A1 (fr) 2019-12-04 2020-12-04 Composition de filtre solaire à base d'émulsion huile-dans-eau

Country Status (3)

Country Link
JP (1) JPWO2021112208A1 (fr)
CN (1) CN114760981A (fr)
WO (1) WO2021112208A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004224706A (ja) * 2003-01-20 2004-08-12 Shiseido Co Ltd 噴霧型日焼け止め化粧料
JP2016216426A (ja) * 2015-05-26 2016-12-22 ポーラ化成工業株式会社 日焼け止め化粧料
WO2018105040A1 (fr) * 2016-12-06 2018-06-14 株式会社 資生堂 Produit cosmétique en émulsion de type huile dans l'eau
JP2019094312A (ja) * 2017-11-28 2019-06-20 ポーラ化成工業株式会社 日焼け止め化粧料

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7203745B2 (ja) * 2017-09-29 2023-01-13 株式会社 資生堂 水中油型乳化化粧料

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004224706A (ja) * 2003-01-20 2004-08-12 Shiseido Co Ltd 噴霧型日焼け止め化粧料
JP2016216426A (ja) * 2015-05-26 2016-12-22 ポーラ化成工業株式会社 日焼け止め化粧料
WO2018105040A1 (fr) * 2016-12-06 2018-06-14 株式会社 資生堂 Produit cosmétique en émulsion de type huile dans l'eau
JP2019094312A (ja) * 2017-11-28 2019-06-20 ポーラ化成工業株式会社 日焼け止め化粧料

Also Published As

Publication number Publication date
JPWO2021112208A1 (fr) 2021-06-10
CN114760981A (zh) 2022-07-15

Similar Documents

Publication Publication Date Title
ES2349014T3 (es) Cosmetico autobronceador.
JP5053887B2 (ja) 水中油型乳化組成物
JP6242037B2 (ja) 水中油型乳化皮膚化粧料
KR100874877B1 (ko) 폴리올중유형 고밀집 나노 농축 에멀젼을 이용한유중수중유형 역상 다중 에멀젼 상의 화장료 조성물 및 그제조방법
TWI492763B (zh) 水凝膠粒子
WO2008001902A1 (fr) Produit cosmétique et procédé pour la production de celui-ci
JP6927956B2 (ja) 水性化粧料組成物
JP2017515864A (ja) 二酸化チタン及び酸化亜鉛による過度の白さが皮膚塗布時に視覚的に隠蔽される日焼け止め製品
JP2010120857A (ja) 皮膚外用剤
WO2012035870A1 (fr) Produit cosmétique pour la peau
JP7373264B2 (ja) 日焼け止め化粧料
JP5088766B2 (ja) 油の微細分散組成物
JP2002338433A5 (fr)
WO1998054271A1 (fr) Agent gelifiant et compositions gelifiees
JP6418626B2 (ja) 油中水型乳化組成物及び該組成物を用いた油中水型乳化化粧料
WO2021112208A1 (fr) Composition de filtre solaire à base d'émulsion huile-dans-eau
JP4594661B2 (ja) 油溶性アスコルビン酸誘導体を含有した乳化組成物
JP4553607B2 (ja) 水中油型乳化香料組成物及びその製造方法
AU2015277745A1 (en) Compositions and methods for enhancing the topical application of a color cosmetic
JP2011046629A (ja) 油性粒子を含有する外用組成物
JP2022102419A (ja) 水中油滴型乳化物
JP2003306410A (ja) 粉末含有油中水型乳化化粧料
JP2020128345A (ja) 水中油型乳化組成物
JP2001039851A (ja) 目元用マッサージ化粧料
JP2007269668A (ja) 水中油型美白化粧料

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20895202

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021562738

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20895202

Country of ref document: EP

Kind code of ref document: A1