WO2011055771A1 - 乳化化粧料 - Google Patents
乳化化粧料 Download PDFInfo
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- WO2011055771A1 WO2011055771A1 PCT/JP2010/069655 JP2010069655W WO2011055771A1 WO 2011055771 A1 WO2011055771 A1 WO 2011055771A1 JP 2010069655 W JP2010069655 W JP 2010069655W WO 2011055771 A1 WO2011055771 A1 WO 2011055771A1
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- emulsified cosmetic
- zinc oxide
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- 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
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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
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/0254—Platelets; Flakes
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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
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
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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
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/27—Zinc; Compounds thereof
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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
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
- A61K8/735—Mucopolysaccharides, e.g. hyaluronic acid; Derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/60—Particulates further characterized by their structure or composition
- A61K2800/61—Surface treated
- A61K2800/62—Coated
- A61K2800/623—Coating mediated by organosilicone compounds
Definitions
- the present invention relates to an emulsified cosmetic having a high UV protection effect and excellent stability over time and feeling of use.
- UV-A region 320 to 400 nm
- inorganic powders such as titanium oxide and zinc oxide have been used to protect against ultraviolet rays.
- zinc oxide has been widely used in cosmetics in recent years because of its relatively high shielding power not only in the UV-B region (290 nm to 320 nm) but also in the UV-A region.
- fine particle zinc oxide having an average particle size of 0.1 ⁇ m or less is used.
- this fine particle zinc oxide tends to aggregate, its dispersibility is poor, and when it is incorporated in a large amount, it expands. However, the whitening occurred and the usability was not practical.
- a powder of 0.1 ⁇ m or less of finely divided zinc oxide is surface-treated with silicic acid anhydride and then treated with silicone, and a specific polyoxyalkylene-modified polysiloxane is used to disperse the powder.
- Sunscreen cosmetics have been proposed that are excellent in properties, have a high UV protection effect, are stable, are transparent, and have a good feeling of use (see Patent Document 1).
- the smooth spreading of the cosmetic is insufficient and the feeling of use is poor, the water resistance against sweat and water from the outside is not sufficient, and it is not satisfactory from the standpoint of having a makeup.
- Patent Document 2 a skin external preparation having improved transparency and UV protection effect by using flaky zinc oxide powder has been proposed (see Patent Document 2), but the dispersibility of the powder is not sufficient and blended. It was not satisfactory in terms of white floating and feeling of use.
- JP 2001-58934 A Japanese Patent No. 307387 gazette Japanese Patent No. 3964780 Japanese Patent Laid-Open No. 11-35440 Japanese Patent No. 2578037
- the present invention relates to (A) zinc oxide powder having an average particle size of 0.1 to 1 ⁇ m, an average particle thickness of 0.01 to 0.2 ⁇ m, and an average plate ratio of 3 or more, an alkyl group having 1 to 20 carbon atoms or An emulsified cosmetic comprising a powder having a fluoroalkyl group and surface-treated with a silane compound or silazane compound having reactivity with an inorganic oxide is provided.
- the emulsified cosmetic of the present invention has high transparency and UV protection effect, good stability over time, no stickiness, moist feeling, and excellent usability.
- FIG. 4 is a view showing a scanning electron microscope image of a coating film of alkylsilane (octyltriethoxysilane) surface-treated flaky zinc oxide powder obtained in Production Example 2.
- FIG. It is a figure which shows the scanning electron microscope image of the coating film of the silicone (methyl hydrogen polysiloxane) surface treatment flaky zinc oxide powder obtained by manufacture example 3.
- an object of the present invention is to provide an emulsified cosmetic excellent in UV protection effect, transparency, feeling in use, and stability over time.
- zinc oxide powder having an average particle diameter of 0.1 to 1 ⁇ m, an average particle thickness of 0.01 to 0.2 ⁇ m, and an average plate ratio of 3 or more.
- Is used in an emulsified cosmetic by using a powder having a surface treatment with a silane compound or silazane compound having an alkyl group or fluoroalkyl group having 1 to 20 carbon atoms and having reactivity with an inorganic oxide. It has been found that it has a protective effect and is excellent in stability over time and feeling of use.
- the powder (A) used in the present invention is a zinc oxide powder having an average particle size of 0.1 to 1 ⁇ m, an average particle thickness of 0.01 to 0.2 ⁇ m and an average plate ratio of 3 or more (hereinafter referred to as flaky zinc oxide powder).
- flaky zinc oxide powder a powder having a surface treatment with a silane compound or silazane compound having an alkyl group having 1 to 20 carbon atoms and having reactivity with an inorganic oxide.
- the average particle diameter the arithmetic average of the major axis and the minor axis was regarded as the particle diameter for 20 arbitrary particles in an arbitrary field of view in a transmission electron micrograph.
- the average particle thickness was determined by reading the thickness in the same field of the transmission electron micrograph and calculating the arithmetic average of the thicknesses of all the particles that could be read.
- the average plate ratio was determined by (average particle diameter) / (average particle thickness), and was rounded off to the nearest decimal point.
- the average particle diameter is 0.1 to 1 ⁇ m, preferably 0.1 to 0.8 ⁇ m, more preferably 0.2 to 0.7 ⁇ m. When this average particle diameter is less than 0.1 ⁇ m, it aggregates to lower the dispersibility, and when it exceeds 1 ⁇ m, the transparency and the ultraviolet absorption are reduced.
- the average particle thickness is 0.01 to 0.2 ⁇ m, preferably 0.01 to 0.1 ⁇ m, more preferably 0.01 to 0.05 ⁇ m. When the average particle thickness is less than 0.01 ⁇ m, the flaky shape tends to collapse, and when the average particle thickness exceeds 0.2 ⁇ m, uncomfortable feeling is caused when blended in cosmetics, which is not practical.
- the average plate ratio is 3 or more, preferably 5 or more, more preferably 7 or more. The upper limit of the average plate ratio is preferably 30 or less. When this plate ratio is less than 3, the transparency is lowered.
- the flaky zinc oxide powder preferably further contains a +2 or more trace element.
- containing means that the trace element is bound and held on the surface of the flaky zinc oxide powder or inside thereof.
- the trace element of +2 or more include metals such as iron, zirconium, calcium, manganese, magnesium, and yttrium. These can be used alone or in combination of two or more. Examples of combinations include zirconium and iron, zirconium and magnesium, iron and magnesium, iron and calcium and the like.
- the content of the trace element is preferably 0.005 to 1.0 mol, more preferably 0.01 to 1.0 mol with respect to 100 mol of zinc contained in the flaky zinc oxide powder, from the viewpoint of UV protection ability. 0.5 mole.
- the additive element content is obtained by dissolving a fixed amount of dry powder in 6N hydrochloric acid and diluting the solution to a fixed volume by ICP emission analysis to obtain the concentration of zinc and other additive elements.
- the molar ratio of the additive element to zinc was determined.
- silane compound or silazane compound having an alkyl group or fluoroalkyl group having 1 to 20 carbon atoms and reactive with an inorganic oxide used in the present invention include (1) an alkyl group or fluoroalkyl having 1 to 20 carbon atoms. And alkoxysilane compounds or halogenosilane compounds having a group, and (2) silazane compounds having an alkyl group or fluoroalkyl group having 1 to 20 carbon atoms. Examples of these silane compounds and silazane compounds include silane compounds represented by the following general formula (1) and silazane compounds represented by the general formula (2).
- N is an integer of 0 or 1
- R represents an alkyl group or a fluoroalkyl group having 1 to 20 carbon atoms (which may be linear or branched), and R 1 represents 1 carbon atom.
- -6 represents an alkyl group, and X represents a halogen atom or an alkoxy group.
- R 2 to R 7 represent an alkyl group or fluoroalkyl group having 1 to 20 carbon atoms (which may be linear or branched) and may be independent or the same.)
- an alkyl group or perfluoroalkyl group having 6 to 10 carbon atoms is more preferred, and hexyl Group, octyl group, decyl group, octadecyl group, trifluoropropyl group, heptadecafluorodecyl group and the like are preferable.
- R 1 include a methyl group, an ethyl group, and a propyl group.
- the halogen atom include a chlorine atom and a bromine atom.
- alkoxy group include alkoxy groups having 1 to 6 carbon atoms such as a methoxy group, an ethoxy group, and an isopropoxy group.
- silane compounds include hexyltrimethoxysilane, octyltrimethoxysilane, decyltrimethoxysilane, octadecyltrimethoxysilane, octyltriethoxysilane, trifluoropropyltrimethoxysilane, heptadecafluorodecyltrimethoxysilane, and the like. It is done. Of these, octyltriethoxysilane and octyltrimethoxysilane are particularly preferable.
- silazane compound examples include hexamethyldisilazane, octyldisilazane, etc. Among them, octyldisilazane is particularly preferable.
- the silane compound or silazane compound is characterized in that it can be uniformly treated, is easy to supply and is inexpensive in cost, and further dispersibility when the powder (A) surface-treated with these compounds is blended into a product. Etc. are preferable because of excellent properties.
- the silane compound or the silazane compound and the flaky zinc oxide powder are mixed in an organic solvent such as n-hexane, cyclohexane or lower alcohol. After pulverization, the organic solvent is removed by heating or reduced pressure, and the silane compound or silazane compound is preferably reacted on the surface of the flaky zinc oxide powder (alkoxy group, And a method of chemically reacting with halogen, amino group and the like.
- an organic solvent such as n-hexane, cyclohexane or lower alcohol.
- the surface of the flaky zinc oxide powder is pre-coated with an inorganic oxide such as silica, alumina, zirconia, titanium oxide, iron oxide, cerium oxide, etc., and then the silane compound or silazane compound is treated with inorganic oxide.
- the method of surface-coating powder is also mentioned.
- Examples of a method for producing the inorganic oxide-treated flaky zinc oxide powder include conventionally known treatment methods such as a wet treatment method using a solvent and a mechanochemical method.
- a method of obtaining a silica-coated flaky zinc oxide powder by coating the surface of a flaky zinc oxide powder with a silicone compound by a method described in WO98-17730 and firing it.
- the coating amount of the silane compound or silazane compound on the flaky zinc oxide powder is preferably 3 to 15% by mass, more preferably 5 to 10% by mass, based on the total amount of the flaky zinc oxide powder used. is there. Within this range, the surface of the flaky zinc oxide powder is uniformly coated with the silane compound or silazane compound, and the silane compound or silazane compound does not aggregate or precipitate on the surface of the flaky zinc oxide powder.
- the flaky zinc oxide powder surface-treated with the silane compound or silazane compound used in the present invention is preferably contained in an amount of 0.5 to 20% by mass, particularly 1 to 18% by mass, based on the total amount of the emulsified cosmetic. It is preferable to contain. If it is in the said range, the dispersibility of powder will be favorable and the viscosity raise of a formulation can also be prevented.
- a zinc oxide powder having an average particle diameter of 0.01 to 1 ⁇ m (hereinafter referred to as fine particle zinc oxide powder) is contained. It is more preferable for obtaining excellent stability over time and feeling of use while having properties and UV protection effects.
- the average particle size of the (B) fine particle zinc oxide powder used in the present invention is preferably in the range of 0.01 to 1 ⁇ m, more preferably 0.012 to 0.2 ⁇ m, still more preferably 0.015 to 0.1 ⁇ m. It is. If the particle diameter is less than 0.01 ⁇ m, the powder has high activity and strong cohesiveness, and therefore, as a secondary particle, it often behaves as a powder having a particle diameter larger than the applicable range of the present invention. On the other hand, when the thickness exceeds 1 ⁇ m, optical problems such as easy formulation opacification may occur.
- Examples of the shape of the (B) fine particle zinc oxide powder used in the present invention include a spherical shape, a rod shape, a spindle shape, a needle shape, and an indefinite shape, but any shape having an average particle diameter within the above range is used. can do. However, those having a shape different from that of the flaky zinc oxide powder are preferred, more preferably the average plate ratio is less than 3, more preferably 2 or less, particularly preferably 1.5 or less. It is. If it is in the said range, when it uses together with said (A) surface-treated flaky zinc oxide powders, such as a silane compound, transparency is high and the ultraviolet-ray protective effect is also favorable.
- the shape is particularly preferably spherical.
- These fine zinc oxide powders are, for example, FINEX-25, FINEX-50, FINEX-75 (manufactured by Sakai Chemical Co., Ltd.), MZ500 series, MZ700 series (manufactured by Teika), and ZnO-350 (manufactured by Sumitomo Osaka Cement). It is commercially available.
- These fine particle zinc oxide powders are the same as those in the above flaky zinc oxide powder, or surface treatment using a silane compound or silazane compound, and other conventionally known surface treatments such as fluorine compound treatment, silicone treatment, silicone resin treatment, pendant.
- surface treatment using methylhydrogenpolysiloxane or methylhydrogenpolysiloxane / dimethylpolysiloxane copolymer of the following formula (3) surface using the same silane compound or silazane compound as the flaky zinc oxide powder Processing.
- surface treatment using a silane compound or a silazane compound similar to the flaky zinc oxide powder is preferred.
- the (B) fine particle zinc oxide powder used in the present invention is preferably contained in an amount of 0.5 to 20% by mass, particularly preferably 1 to 18% by mass, based on the total amount of the emulsified cosmetic. If it is in the said range, the dispersibility of powder will be favorable and the viscosity raise of a formulation can also be prevented.
- the total content of (A) flaky zinc oxide powder surface-treated with a silane compound or the like and (B) fine-particle zinc oxide powder is 1 to 30% by mass relative to the total amount of the emulsified cosmetic.
- the content is preferably 2 to 20% by mass. If it is in the said range, it is excellent in a usability
- (C) polyether-modified silicone is contained, while having high transparency and UV protection effect, excellent stability over time and smoothness of the coating film. It is more preferable for obtaining a long lasting cosmetic effect.
- the component (B) and the component (C) may be used in combination.
- Examples of the polyether-modified silicone include those represented by the following general formulas (4) to (6).
- R 8 represents an alkyl group having 1 to 5 carbon atoms or a phenyl group
- R 9 represents the formula — (CH 2 ) r —O— (C 2 H 4 O) s — (C 3 H 6 O).
- t— R 12 R 12 is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, r is a number of 1 to 5, s is a number of 1 to 50, and t is a number of 0 to 30
- R 10 and R 11 represent the same group as any one of R 8 or R 9
- R 13 represents an alkyl group having 2 to 20 carbon atoms
- R 14 and R 15 represent R 8 , R 9 or R 13 .
- u is an integer
- u 1 to 30 (provided that not all of R 8 are phenyl groups)
- R 16 represents the same or different unsubstituted or substituted alkyl or aryl group having 1 to 20 carbon atoms
- R 17 represents the formula —Q 1 —O— (C 2 H 4 O) x — ( C 3 H 6 O) y
- Q 1 is a hydrocarbon group having 1 to 4 carbon atoms
- R 21 is a hydrogen atom, an alkyl group or acetyl group having 1 to 4 carbon atoms
- R 18 is represented by the formula —Q 2 —O—R 22
- Q 2 is a hydrocarbon group having 1 to 4 carbon atoms
- R 22 is a hydrocarbon group having 8 to 30 carbon atoms, or a group represented by the formula —Q 3 —O— (C 2 H 4 O
- the polyether-modified silicones represented by the general formulas (4) to (6) have a branched structure in the silicone main chain within a range not departing from the purpose, and functional groups other than the polyether such as perfluoro It may be co-modified with alkyl.
- polyether-modified silicones used in the present invention those preferred as water-in-oil emulsified cosmetics are polyether-modified silicones having an HLB in the range of 4 to 7, and particularly preferably an HLB in the range of 4 to 7.
- Perfluoroalkyl / polyoxyalkylene co-modified organopolysiloxane (for example, in the general formula (5), R 16 is the same or different unsubstituted or substituted alkyl group or aryl group having 1 to 20 carbon atoms, and R 17 is carbon.
- Perfluoroalkyl / polyoxyalkylene co-modified organopolysiloxanes are commercially available, for example, as FPD4970 and FPD6131 (both manufactured by Shin-Etsu Chemical Co., Ltd.). These physical property values are shown in Table 1.
- polyether-modified silicones used in the present invention those preferred as oil-in-water emulsified cosmetics are polyether-modified silicones having an HLB in the range of 8-18.
- the (C) polyether-modified silicone in the present invention is preferably contained in an amount of 0.1 to 5% by mass, particularly preferably 0.3 to 3% by mass, based on the total amount of the emulsified cosmetic.
- the content of the polyether-modified silicone is within the above range, the storage stability is excellent and the usability is excellent.
- the emulsified cosmetic of the present invention may contain (D) an organic ultraviolet absorber in order to further improve the ultraviolet protection ability.
- organic ultraviolet absorber used in the present invention include 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybonzophenone-5-sulfonic acid, 2,2′-dihydroxy-4,4′-dimethoxybenzophenone, Disodium 2,2′-dihydroxy-4,4′-dimethoxy-5,5′-disulphobenzophenone, 2,4-dihydroxybenzophenone, 2,2 ′, 4,4′-tetrahydroxybenzophenone, 4-tert- Butyl-4′-methoxy-dibezoylmethane, 2,4,6-trianilino-p-carbo-2′-ethylhexyl-1′-oxy) -1,3,5-triazine, menthyl anthranilate, 2- (2-hydroxy -5-methylphenyl) benzothiazole, 2-
- 2- (4-diethylamino-2-hydroxybenzoyl) -benzoic acid hexyl ester is blended, particularly with an excellent ultraviolet protective effect, There is no stickiness and a good feeling of use is obtained.
- This 2- (4-diethylamino-2-hydroxybenzoyl) -benzoic acid hexyl ester is an organic ultraviolet absorber represented by the following formula (7), and is commercially available as ubinal Aplus (manufactured by BSAF).
- the ultraviolet absorption is in the range of 310 to 390 nm (UV-A region) with a maximum absorption wavelength of about 354 nm.
- the content of the organic ultraviolet absorber is preferably 0.01 to 20% by mass, particularly preferably 0.05 to 10% by mass, based on the total amount of the emulsified cosmetic. If it is in the said range, it is excellent in the ultraviolet-ray protective effect and is stable over time.
- the content of 2- (4-diethylamino-2-hydroxybenzoyl) -benzoic acid hexyl ester is preferably 0.01 to 8% by mass, most preferably 0.05 to 3% by mass. is there.
- the organic ultraviolet absorber sealed in a polymer powder may or may not be hollow, the average particle diameter may be in the range of 0.1 to 50 ⁇ m, and the particle size distribution may be broad or sharp.
- the polymer include acrylic resin, methacrylic resin, styrene resin, urethane resin, polyethylene, polypropylene, polyethylene terephthalate, silicone resin, nylon, and acrylamide resin.
- a powder in which an organic ultraviolet absorber is incorporated in these polymer powders in the range of 0.1 to 30% by mass of the powder mass is preferable.
- the emulsified cosmetic composition of the present invention may further contain various (E) polysaccharides in order to improve the feeling of use and stability over time.
- polysaccharides used in the present invention include pullulan, dextran, cyclosophoran, laminarin, schizophyllan, lentinan, arabinogalactan, burley glucan, lichenan, succinoglycan, xyloglucan, locust bean gum, xanthan gum, chitosan, pustulan, carrageenan , Hyaluronic acid, or a salt thereof.
- Hyaluronic acid, alkali metal hyaluronic acid, and xanthan gum are preferable.
- Hyaluronic acid is a high-viscosity mucopolysaccharide obtained by extraction from chicken crested shark, or a fermentation method using Streptococcus zooepidemicus or Streptococcus equi, which is a kind of lactococci.
- Hyaluronic acid FCH series Food Chemifa
- hyaluronic acid solution HA series Cuppy
- the content of the polysaccharide (E) is preferably 0.0001 to 5% by mass, particularly preferably 0.001 to 3% by mass, based on the total amount of the emulsified cosmetic. . Even when used together with flaky zinc oxide or the like, if it is within the range, there is no stickiness and stability over time is good.
- the lower alcohol, fluorine compound, resin, thickener Ingredients such as antibacterial preservatives, fragrances, moisturizers, salts, solvents, antioxidants, chelating agents, neutralizing agents, pH adjusters, insect repellents, physiologically active ingredients and the like can be used.
- Ingredients such as antibacterial preservatives, fragrances, moisturizers, salts, solvents, antioxidants, chelating agents, neutralizing agents, pH adjusters, insect repellents, physiologically active ingredients and the like can be used.
- silicone compounds, higher alcohols, fats and oils, ester oils, hydrocarbon oils and the like are used as the oil component.
- surfactants are used as the emulsifier.
- the emulsified cosmetic of the present invention can be used as a cosmetic without particular limitation, but hair cosmetics such as shampoos, rinses, conditioners, facial cleansers, cleansing cosmetics, sunscreen cosmetics, packs, massage cosmetics, etc. It can be suitably used as a skin cosmetic. Among these, it is particularly preferred to apply to sunscreen cosmetics, suntan, cosmetic base cosmetics, foundations having UV protection ability, and the like.
- the emulsification type of the emulsified cosmetic of the present invention can be applied to various emulsification types without limitation such as water-in-oil emulsification and oil-in-water emulsification.
- the dosage form of the emulsified cosmetic of the present invention can be applied to liquid, emulsion, cream, paste, solid, multilayer, etc., and further applied as a sheet, spray, mousse. it can.
- Production Example 2 (Production of alkylsilane surface-treated flaky zinc oxide powder) A slurry composed of 93 parts by mass of flaky zinc oxide powder, 7 parts by mass of octyltriethoxysilane, and toluene was prepared, and pulverized and crushed using a bead mill (Dynomill manufactured by Shinmaru Enterprises). Next, toluene was distilled off by heating under reduced pressure, followed by heat treatment at 150 ° C. for 4 hours using a blown air dryer, to obtain octyltriethoxysilane-treated flaky zinc oxide powder.
- Production Example 3 (Production of silicone surface-treated flaky zinc oxide powder) A slurry composed of 93 parts by weight of flaky zinc oxide powder, 7 parts by weight of methyl hydrogen polysiloxane (KF-99P, manufactured by Shin-Etsu Chemical Co., Ltd.) and isopropyl alcohol was prepared, stirred well, and pulverized. The mixture was distilled off by heating and heat-treated in air at 150 ° C. for 4 hours to obtain a methyl hydrogen polysiloxane surface-treated flaky zinc oxide powder.
- KF-99P methyl hydrogen polysiloxane
- Production Example 4 (Production of alkylsilane surface-treated fine particle zinc oxide powder)
- a slurry composed of 93 parts by mass of fine zinc oxide powder (substantially spherical, average particle size 0.02 ⁇ m), 7 parts by mass of octyltriethoxysilane, and toluene was prepared and pulverized using a bead mill (Dynomill manufactured by Shinmaru Enterprises). ⁇ We disintegrated.
- toluene was distilled off by heating under reduced pressure, followed by heat treatment at 150 ° C. for 4 hours using an air blast dryer to obtain octyltriethoxysilane-treated fine particle zinc oxide powder.
- Production Example 5 (Production of silicone surface-treated fine particle zinc oxide powder) A slurry consisting of 95 parts by mass of fine zinc oxide powder (substantially spherical, average particle size 0.02 ⁇ m), 5 parts by mass of methyl hydrogen polysiloxane (KF-99P, manufactured by Shin-Etsu Chemical Co., Ltd.) and isopropyl alcohol is prepared and stirred well. After pulverization, the solvent was removed by heating under reduced pressure, and heat treatment was performed in air at 150 ° C. for 4 hours to obtain methyl hydrogen polysiloxane surface-treated fine particle zinc oxide powder.
- KF-99P methyl hydrogen polysiloxane
- Production Example 6 (Production of silicone surface-treated fine particle titanium oxide powder) A slurry composed of 95 parts by mass of fine particle titanium oxide powder (substantially spherical, average particle size 0.017 ⁇ m), 5 parts by mass of methyl hydrogen polysiloxane (KF-99P, manufactured by Shin-Etsu Chemical Co., Ltd.) and isopropyl alcohol is prepared and stirred well. After pulverization, the solvent was removed by heating under reduced pressure, and a heat treatment was performed in air at 160 ° C. for 4 hours to obtain methylhydrogenpolysiloxane surface-treated fine particle titanium oxide powder.
- KF-99P methyl hydrogen polysiloxane
- Test example 1 Cyclomethicone was added to the powders of Production Example 2 and Production Example 3, and dispersed with a disper to prepare samples each having a powder content of 10% by mass. They were coated on a glass plate with a doctor blade (YD type) with a film thickness of 6 ⁇ m to obtain a scanning electron microscope (SEM) image after drying. The respective SEM images are shown in FIG. 1 (Production Example 2) and FIG. 2 (Production Example 3).
- the coating film obtained from the surface-treated flaky zinc oxide powder of alkylsilane (octyltriethoxysilane) used in the present invention achieves a uniform and highly coated coating film.
- the coating film obtained with the surface-treated flaky zinc oxide powder of silicone has a portion where the powder is agglomerated and fine holes, and a uniform coating film cannot be obtained. I understand that.
- UVB protection effect evaluation criteria A: SPF value is 40 or more B: SPF value is 30 or more and less than 40 C: SPF value is 20 or more and less than 30 D: SPF value is less than 20 [UVA protective effect evaluation criteria] a: T (UVA) is less than 20% b: T (UVA) is 20% or more and less than 25% c: T (UVA) is 25% or more
- T (UVA) is defined by the following equation.
- the emulsified cosmetic containing the (A) silane compound-treated flaky zinc oxide powder of the present invention has a high UV protection effect, and has good stability over time, transparency and use feeling. .
- the effect of the emulsified cosmetic of the present invention in which the powder (A) is used in combination with the fine particle zinc oxide (B) was particularly remarkable.
- Oil-in-water emulsified cosmetics having the composition described in Table 3 below were prepared by the following production method. Based on the above evaluation criteria, the obtained emulsified cosmetic was evaluated with respect to feeling of use (no stickiness, moist feeling), stability over time, and UV protection effect. The evaluation results are shown in Table 3.
- A Components (1) to (7) are dissolved by heating at 70 ° C. and mixed uniformly.
- B Components (8) to (12) are uniformly dissolved and mixed at 70 ° C.
- C While stirring B, gradually add A and pre-emulsify.
- D C was cooled to 40 ° C., components (13) to (15) were gradually added and stirred, mixed uniformly with a homomixer, degassed and cooled to obtain an emulsified cosmetic.
- Ultraviolet absorber 2- (4-diethylamino-2-hydroxybenzoyl hexyl benzoate, which absorbs in the UV-A region, has poor solubility in oils and solvents and poor stability when used in combination with metal oxides. However, by adopting the configuration of the present invention, good usability was obtained while maintaining stability over time.
- Hexyl diethylaminohydroxybenzoyl benzoate an ultraviolet absorber that absorbs in the UV-A region, has a problem of poor solubility in oils and solvents, poor stability when used in combination with metal oxides, and strong stickiness. In the present invention, good usability was obtained while maintaining stability over time.
- the following is a formulation example of the emulsified cosmetic of the present invention. All of these are emulsified cosmetics that have high transparency and UV protection effects, and are excellent in stability over time and in use.
- Methylphenylpolysiloxane 3.0 (FZ-209 manufactured by Toray Dow Corning) 10. Isononyl isononanoate 1.0 11. Squalane 1.0 12.1,3-butylene glycol 5.0 13. Yellow iron oxide 0.5 14 Sodium chloride 1.0 (E) component 15. Sodium hyaluronate 0.1 16. Hydrolyzed collagen 0.01 17. Stearyl glycyrrhetinate 0.1 18. Phenoxyethanol 0.3 19. Fragrance 0.1 20. Purified water balance
- Formulation example 2 (sunscreen oil-in-water emulsified makeup base) (A) component (mass%) 1. Alkylsilane-treated flaky zinc oxide (Production Example 2) 10.0 (B) component 2. Silicone-treated zinc oxide (Production Example 5) 10.0 Component (D) Diethylaminohydroxybenzoyl hexyl benzoate 1.0 (D) component 4. 2-Ethylhexyl paramethoxycinnamate 5.0 5. Octyldodecyl myristate 2.0 6). Sorbitan stearate 0.3 (C) component 7. Polyoxyethylene / methylpolysiloxane copolymer 1.0 (Silicone KF-6017, Shin-Etsu Chemical) 8).
- Prune extract 0.5 (Product name: Prune extract WC (manufactured by Maruzen Pharmaceutical Co., Ltd.)) (E) component 19. Hyaluronic acid 0.5 20. Fragrance 0.1 21. Phenoxyethanol 0.3 22. Purified water balance
- Formulation Example 1 (Sunscreen oil-in-water emulsified cosmetic) (A) component (mass%) Alkylsilane-treated flaky zinc oxide (Production Example 2) 10.0 (B) Component Alkylsilane-treated fine particle zinc oxide (Production Example 4) 5.0 Silicone-treated titanium oxide (Production Example 6) 5.0 Component (C) PEG-9 polydimethylsiloxyethyl dimethicone 2.0 (KF-6028 manufactured by Shin-Etsu Chemical Co., Ltd.) Dimethicone (2.0cs) 10.0 Methyltrimethicone 20.0 Component (D) Octyl methoxycinnamate 7.5 Component (D) 2- (4-Diethylamino-2-hydroxybenzoyl) -Benzoic acid hexyl ester 1.0 Organically modified bentonite 0.5 Isononyl isononanoate 3.0 Ethanol 5.0 Preservative appropriate amount Purified water balance
- Formulation Example 2 Water-in-oil emulsified cream
- A component (mass%) Flaky zinc oxide treated with alkylsilane
- B Silicone-treated zinc oxide
- D Diethylaminohydroxybenzoyl hexyl benzoate 1.0 Decamethylcyclopentasiloxane 25.0 Dimethicone (6cs) 3.0 (SH200CF fluid 2cs manufactured by Toray Dow Corning)
- C Component Polyether-modified silicone 0.6 (BY22-008M, manufactured by Toray Dow Corning Co., Ltd.)
- Sorbitan monoisostearate 1.0 Methylphenylpolysiloxane 3.0 (FZ-209 manufactured by Toray Dow Corning)
- Isononyl isononanoate 1.0 Squalane 1.0 3-Butylene glycol 7.0
- flavor used in said Example and prescription example is shown in Table 6.
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Abstract
Description
紫外線防御効果を高めるため、平均粒子径が0.1μm以下の微粒子酸化亜鉛が用いられているが、この微粒子酸化亜鉛は、凝集しやすいために分散性が悪く、多量に配合した際には伸びが悪く、白浮きが生じ、使用性においても実用的ではなかった。
また、平均粒子径が0.1~1μmの薄片状酸化亜鉛と、短径が0.05~0.1μm、長径が0.01~0.5μmで、粒子形状が紡錘状又は針状の微粒子酸化チタンを用いることで、肌上での伸び広がりが良く、高い透明性と紫外線防御効果を有する化粧料が提案されている(特許文献4参照)。
さらに、平均粒子径0.1~1μm、平均粒子厚さ0.01~0.2μm、平均板状比が3以上の薄片状亜鉛と、エーテル変性シリコーンと、シリコーン油を用いることで、使用感及び持続性に優れた油中水型乳化化粧料が提案されている(特許文献5参照)。
また、特許文献5においては、ある程度のなめらかな伸びは得られるが、油中水型乳化化粧料中の揮発成分が揮発して化粧膜が形成されていく段階で、徐々にのびや広がりが悪くなり、化粧料の塗布中に急激なのびの重さを感じることがあった。また、経時安定性においても満足のいくものではなかった。
従って本発明は、紫外線防御効果、透明感、使用感及び経時安定性に優れる乳化化粧料を提供することを課題とする。
ここで、平均粒子径は、透過型電子顕微鏡写真中、任意の視野の任意の粒子20個について、長軸と短軸との相加平均を粒子径とみなした。平均粒子厚さは、透過型電子顕微鏡写真の同視野中の厚さを読み取り、読み取れるすべての粒子の厚さの算術平均より求めた。平均板状比は、(平均粒子径)/(平均粒子厚さ)により求め、小数点以下を四捨五入した値とした。
平均粒子厚さは0.01~0.2μmであり、好ましくは0.01~0.1μm、より好ましくは0.01~0.05μmである。この平均粒子厚さが0.01μm未満の場合は薄片状形態が崩れ易く、0.2μmを超える場合は化粧料に配合した場合に不快感を生じさせるので、実用的ではない。
平均板状比は3以上であり、好ましくは5以上、さらに好ましくは7以上である。また平均板状比の上限は30以下が好ましい。この板状比が3未満の場合は透明性が低下する。
+2価以上の微量元素としては、鉄、ジルコニウム、カルシウム、マンガン、マグネシウム、イットリウム等の金属が挙げられる。これらは単独でも2種以上を組み合わせても用いることもでき、組み合わせの例としては、ジルコニウムと鉄、ジルコニウムとマグネシウム、鉄とマグネシウム、鉄とカルシウム等を挙げることができる。微量元素の含有量は、紫外線防御能の点から、薄片状酸化亜鉛粉末に含有されている亜鉛量100モルに対して、0.005~1.0モルが好ましく、より好ましくは0.01~0.5モルである。
その内、2-(4―ジエチルアミノ-2-ヒドロキシベンゾイル)-安息香酸ヘキシルエステルの含有量は、0.01~8質量%とすることが好ましく、最も好適には0.05~3質量%である。
本発明で用いる多糖類としては、プルラン、デキストラン、シクロソフォラン、ラミナリン、シゾフィラン、レンチナン、アラビノガラクタン、バーレイグルカン、リケナン、サクシノグリカン、キシログルカン、ローカストビーンガム、キサンタンガム、キトサン、プスツラン、カラギーナン、ヒアルロン酸、又はその塩などが挙げられ、好ましくはヒアルロン酸、ヒアルロン酸アルカリ金属塩、キサンタンガムである。
説明にあたり、以下の実施例で用いた表面処理粉末の製造方法につき、説明する。
硫酸亜鉛1.6×10-1モル、硫酸ナトリウム3.8×10-2モル及び微量元素の塩として硫酸第一鉄1.6×10-4モルを、5×10-2モル硫酸水溶液315mlに溶解した。次に、この溶液をホモミキサーにより6000r.p.m.で攪拌しながら、2N水酸化ナトリウム水溶液230mLを15秒間で投入し(pH=12.8)、沈殿を生成させたのち、10分間攪拌を継続した。その後、100℃で90分間熟成し、濾過、水洗し、230℃で約10時間乾燥して、紫外線吸収性粉末を得た。このようにして得られた粉末を走査型電子顕微鏡で観察し、薄片状粒子(平均粒子径0.25μm、平均粒子厚さ0.019μm、板状比13、鉄元素含有量0.11mol%)であることを確認した。
薄片状酸化亜鉛粉末93質量部とオクチルトリエトキシシラン7質量部と、トルエンからなるスラリーを作成し、ビーズミル(シンマルエンタープライゼス社製ダイノミル)を用いて粉砕・解砕を行った。次いで、トルエンを減圧下に加熱留去した後、送風気流型乾燥機を用いて150℃にて4時間加熱処理し、オクチルトリエトキシシラン処理薄片状酸化亜鉛粉末を得た。
薄片状酸化亜鉛粉末93質量部とメチルハイドロジェンポリシロキサン(KF-99P、信越化学工業社製)7質量部とイソプロピルアルコールからなるスラリーを作成し、よく攪拌・粉砕した後、溶媒を減圧下に加熱留去し、空気中150℃で4時間加熱処理を行い、メチルハイドロジェンポリシロキサン表面処理薄片状酸化亜鉛粉末を得た。
微粒子酸化亜鉛粉末(略球状、平均粒子径0.02μm)93質量部とオクチルトリエトキシシラン7質量部と、トルエンからなるスラリーを作成し、ビーズミル(シンマルエンタープライゼス社製ダイノミル)を用いて粉砕・解砕を行った。次いで、トルエンを減圧下に加熱留去した後、送風気流型乾燥機を用いて150℃にて4時間加熱処理し、オクチルトリエトキシシラン処理微粒子酸化亜鉛粉末を得た。
微粒子酸化亜鉛粉末(略球状、平均粒子径0.02μm)95質量部とメチルハイドロジェンポリシロキサン(KF-99P、信越化学工業社製)5質量部とイソプロピルアルコールからなるスラリーを作成し、よく攪拌・粉砕した後、溶媒を減圧下に加熱留去し、空気中150℃で4時間加熱処理を行い、メチルハイドロジェンポリシロキサン表面処理微粒子酸化亜鉛粉末を得た。
微粒子酸化チタン粉末(略球状、平均粒子径0.017μm)95質量部とメチルハイドロジェンポリシロキサン(KF-99P、信越化学工業社製)5質量部とイソプロピルアルコールからなるスラリーを作成し、よく攪拌・粉砕した後、溶媒を減圧下に加熱留去し、空気中160℃で4時間加熱処理を行い、メチルハイドロジェンポリシロキサン表面処理微粒子酸化チタン粉末を得た。
製造例2及び製造例3の粉末にシクロメチコンを添加し、ディスパーで分散し、それぞれ粉体含量が10質量%の試料を作成した。それらをガラスプレート上にドクターブレード(YD型)にて膜厚6μmで塗布し、乾燥後の走査型電子顕微鏡(SEM)像を得た。
それぞれのSEM像を図1(製造例2)及び図2(製造例3)に示す。図1及び図2から明らかなように、本発明で用いるアルキルシラン(オクチルトリエトキシシラン)表面処理薄片状酸化亜鉛粉末で得られた塗膜は均一に高被覆な塗膜を実現しているのに対し、シリコーン(メチルハイドロジエンポリシロキサン)表面処理薄片状酸化亜鉛粉末で得られた塗膜は、粉体が凝集している部分や微細な穴が存在し、均一な塗膜が得られないことがわかる。
下記表2に記載した配合組成の油中水型乳化化粧料を下記の製法にて調製した。得られた乳化化粧料について、下記評価試験を行った。評価結果を合わせて表2に示す。
(1)紫外線防御効果
SPFアナライザー(Optometices社)を用いてSPF値を測定し、以下の基準で示した。
〔UVB防御効果評価基準〕
A:SPF値が40以上
B:SPF値が30以上40未満
C:SPF値が20以上30未満
D:SPF値が20未満
〔UVA防御効果評価基準〕
a:T(UVA)が20%未満
b:T(UVA)が20%以上25%未満
c:T(UVA)が25%以上
専門パネラーを評価項目ごとに10名ずつ用意し(但し、品目によりパネラーが重複する場合もある)、パネラーが製剤を実際に使用し、「塗布後の透明感がある」、「塗布時の滑らかさ」に関して、下記評価基準に従って評価を行い、全パネラーの合計点数から、以下の基準で示した。
〔パネラー評価基準〕
評価基準 点数
効果が高いように感じられる 5
効果が感じられる 4
効果がやや感じられる 3
効果がわずかしか感じられない 2
効果が感じられない 1
〔使用感評価結果〕
A:合計点数が40点以上
B:合計点数が35点以上40点未満
C:合計点数が25点以上35点未満
D:合計点数が25点未満
各試料を60℃の恒温槽に1ヶ月間保管し、1ヶ月後の状態を観察し、以下の判定基準を用いて判定した。
〔保存安定性判定基準〕
A:変化なし
B:やや粘度変化が見られる
C:明らかな粘度変化が見られる
D:分離している
A:成分(1)~(12)を70℃で加熱溶解し、均一に混合する。
B:成分(14)を70℃に加熱する。
C:Aを攪拌しながら、Bを徐々に加えて予備乳化を行う。
D:Cを35℃までを冷却し、成分(13)を徐々に加え攪拌、ホモミキサーにて均一に混合した後、脱気、冷却を行い、乳化化粧料を得た。
下記表3に記載した配合組成の水中油型乳化化粧料を下記の製法にて調製した。得られた乳化化粧料について、上記評価基準に基づき、使用感(べたつき感のなさ、しっとり感がある)、経時安定性、紫外線防御効果に関する評価を行った。評価結果を合わせて表3に示す。
A:成分(1)~(7)を70℃で加熱溶解し、均一に混合する。
B:成分(8)~(12)を70℃で均一に溶解混合する。
C:Bを攪拌しながら、徐々にAを添加し、予備乳化する。
D:Cを40℃まで冷却し、成分(13)~(15)を徐々に加え攪拌し、ホモミキサーにて均一に混合した後、脱気、冷却を行い、乳化化粧料を得た。
下記表4に記載した配合組成の油中水型乳化化粧料を下記の製法にて調製した。得られた乳化化粧料について、下記評価試験を行った。評価結果を合わせて表4に示す。
紫外線防御効果、及び経時安定性は、前記の実施例1~10の方法と同様にして評価した。
〔試験方法〕
平均動摩擦係数をハンディトライボマスター(トリニティラボ社製、Type:TL-201-Sa)を用いて測定した。
〔測定法〕
モデル皮膚(バイオプレート:ビューラックス社製)上に試験サンプル4mg/cm2を載せ均一に馴染むように塗布し、60分間室温で乾燥し、試験塗膜を得た。各サンプル塗膜の平均動摩擦係数を摩擦計(TL201Ts:トリニティラボ社製)にて、移動速度500mm/分、測定距離:50mm往路、荷重:200g/cm2の条件で測定した。尚、数値が小さいものほど、なめらかさに優れていることを意味し、下記の基準で示した。
〔評価基準〕
a:平均動摩擦係数が0.6未満
b:平均動摩擦係数が0.6以上0.7未満
c:平均動摩擦係数が0.7以上
専門パネラーを評価項目ごとに10名ずつ用意し(但し、品目によりパネラーが重複する場合もある)、パネラーが製剤を実際に使用し、「化粧持続性(撥水性・撥油性)」、「塗布後の透明感」に関して、下記評価基準に従って評価を行い、全パネラーの合計点数から、以下の基準で示した。
〔パネラー評価基準〕
評価基準 点数
効果が高いように感じられる 5
効果が感じられる 4
効果がやや感じられる 3
効果がわずかしか感じられない 2
効果が感じられない 1
〔使用感評価結果〕
A:合計点数が40点以上
B:合計点数が35点以上40点未満
C:合計点数が25点以上35点未満
D:合計点数が25点未満
A:成分(1)~(13)を70℃で加熱溶解し、均一に混合する。
B:成分(15)を70℃に加熱する。
C:Aを攪拌しながら、Bを徐々に加えて予備乳化を行う。
D:Cを35℃までを冷却し、成分(14)を徐々に加え攪拌、ホモミキサーにて均一に混合した後、脱気、冷却を行い、油中水型乳化化粧料を得た。
下記表5に記載した配合組成の油中水型乳化化粧料を下記の製法にて調整した。得られた乳化化粧料について、上記評価基準に基づき、使用感(塗膜の滑らかさ)、経時安定性に関する評価を行った。評価結果を合わせて表5に示す。
A:成分(1)~(10)を70℃で加熱溶解し、均一に混合する。
B:成分(12)を70℃に加熱する。
C:Aを攪拌しながら、Bを徐々に加えて予備乳化を行う。
D:Cを35℃まで冷却し、成分(11)を徐々に加え攪拌、ホモミキサーにて均一に混合した後、脱気、冷却を行い、油中水型乳化化粧料を得た。
1.アルキルシラン処理薄片状酸化亜鉛(製造例2) 10.0
(B)成分
2.シリコーン処理酸化亜鉛(製造例5) 5.0
(D)成分
3.ジエチルアミノヒドロキシベンゾイル安息香酸ヘキシル 1.0
4.デカメチルシクロペンタシロキサン 25.0
5.ジメチコン 7.0
(SH200C Fluid 2cs 東レ・ダウコーニング社製)
(C)成分
6.ポリエーテル変性シリコーン 0.6
(BY22-008M 東レ・ダウコーニング社製、純分換算)
(D)成分
7.パラメトキシケイ皮酸2-エチルヘキシル 4.0
8.モノイソステアリン酸ソルビタン 1.0
9.メチルフェニルポリシロキサン 3.0
(FZ-209 東レ・ダウコーニング社製)
10.イソノナン酸イソノニル 1.0
11.スクワラン 1.0
12.1,3-ブチレングリコール 5.0
13.黄酸化鉄 0.5
14.塩化ナトリウム 1.0
(E)成分
15.ヒアルロン酸ナトリウム 0.1
16.加水分解コラーゲン 0.01
17.グリチルレチン酸ステアリル 0.1
18.フェノキシエタノール 0.3
19.香料 0.1
20.精製水 残 部
(A)成分 (質量%)
1.アルキルシラン処理薄片状酸化亜鉛(製造例2) 10.0
(B)成分
2.シリコーン処理酸化亜鉛(製造例5) 10.0
(D)成分
3.ジエチルアミノヒドロキシベンゾイル安息香酸ヘキシル 1.0
(D)成分
4.パラメトキシケイ皮酸2-エチルヘキシル 5.0
5.ミリスチン酸オクチルドデシル 2.0
6.ステアリン酸ソルビタン 0.3
(C)成分
7.ポリオキシエチレン・メチルポリシロキサン共重合体 1.0
(シリコーンKF-6017、信越化学工業)
8.ジメチコン(6cs) 3.0
9.デカメチルシクロペンタシロキサン 10.0
10.スクワラン 3.0
11.ポリメチルシルセスキオキサン 5.0
(平均一次粒径4.5μm)
12.エタノール 10.0
13.ステアロキシPGヒドロキシエチルセルローススルホン酸Na
(ポイズ310、花王社製) 0.5
14.エデト酸二ナトリウム 0.02
15.グリセリン 5.0
16.1,3-ブチレングリコール 5.0
17.アセロラエキス 1.0
(商品名:アセロラ抽出物BG25(丸善製薬社製)
18.プルーンエキス 0.5
(商品名:プルーン抽出液WC(丸善製薬社製))
(E)成分
19.ヒアルロン酸 0.5
20.香料 0.1
21.フェノキシエタノール 0.3
22.精製水 残 部
(A)成分 (質量%)
アルキルシラン処理薄片状酸化亜鉛(製造例2) 10.0
(B)成分
アルキルシラン処理微粒子酸化亜鉛(製造例4) 5.0
シリコーン処理酸化チタン(製造例6) 5.0
(C)成分
PEG-9ポリジメチルシロキシエチルジメチコン 2.0
(KF-6028 信越化学工業社製)
ジメチコン(2.0cs) 10.0
メチルトリメチコン 20.0
(D)成分
メトキシケイ皮酸オクチル 7.5
(D)成分
2-(4-ジエチルアミノ-2-ヒドロキシベンゾイル)
-安息香酸ヘキシルエステル 1.0
有機変性ベントナイト 0.5
イソノナン酸イソノニル 3.0
エタノール 5.0
防腐剤 適 量
精製水 残 部
(A)成分 (質量%)
アルキルシラン処理薄片状酸化亜鉛(製造例2) 8.0
(B)成分
シリコーン処理酸化亜鉛(製造例5) 5.0
(D)成分
ジエチルアミノヒドロキシベンゾイル安息香酸ヘキシル 1.0
デカメチルシクロペンタシロキサン 25.0
ジメチコン(6cs) 3.0
(SH200CFluid 2cs 東レ・ダウコーニング社製)
(C)成分
ポリエーテル変性シリコーン 0.6
(BY22-008M 東レ・ダウコーニング社製、純分換算)
(D)成分
パラメトキシケイ皮酸2-エチルヘキシル 7.5
モノイソステアリン酸ソルビタン 1.0
メチルフェニルポリシロキサン 3.0
(FZ-209 東レ・ダウコーニング社製)
イソノナン酸イソノニル 1.0
スクワラン 1.0
3-ブチレングリコール 7.0
キシロビオース 1.0
(商品名:キシロビオースミクスチャー 北海道糖業社製)
キウイエキス 0.5
(商品名:ファルコレックスキウイ 一丸ファルコス社製)
塩化ナトリウム 1.0
(E)成分
ヒアルロン酸ナトリウム 0.1
加水分解コラーゲン 0.01
グリチルレチン酸ステアリル 0.1
フェノキシエタノール 0.3
香料 0.1
精製水 残 部
Claims (12)
- (A)平均粒子径0.1~1μm、平均粒子厚さ0.01~0.2μm及び平均板状比3以上である酸化亜鉛粉末を、炭素数1~20のアルキル基若しくはフルオロアルキル基を有し、無機酸化物と反応性を有するシラン化合物又はシラザン化合物により表面処理した粉末を含有することを特徴とする乳化化粧料。
- 前記シラン化合物又はシラザン化合物が、ヘキシルトリメトキシシラン、オクチルトリメトキシシラン、デシルトリメトキシシラン、オクタデシルトリメトキシシラン、オクチルトリエトキシシラン、トリフルオロプロピルトリメトキシシラン、ヘプタデカフルオロデシルトリメトキシシラン、ヘキサメチルジシラザン及びオクチルジシラザンから選ばれる1種又は2種以上である請求項1記載の乳化化粧料。
- 前記シラン化合物又はシラザン化合物が、オクチルトリエトキシシラン及びオクチルトリメトキシシランから選ばれる1種又は2種以上である請求項1記載の乳化化粧料。
- さらに、(B)平均板状比が3未満の平均粒子径が0.01~1μmの酸化亜鉛粉末を含有する請求項1~3のいずれか1項記載の乳化化粧料。
- 前記(A)と(B)の質量比(A/B)が、1/2~10/1である請求項4記載の乳化化粧料。
- さらに、(C)ポリエーテル変性シリコーンを含有する請求項1~5のいずれか1項記載の乳化化粧料。
- 前記ポリエーテル変性シリコーンが、パーフルオロアルキル・ポリオキシアルキレン共変性シリコーンである請求項6記載の乳化化粧料。
- さらに、(D)有機系紫外線吸収剤を含有する請求項1~7のいずれか1項記載の乳化化粧料。
- 前記(D)有機系紫外線吸収剤が、2-ヒドロキシ-4-メトキシベンゾフェノン、2-ヒドロキシ-4-メトキシボンゾフェノン-5-スルホン酸、2,2’-ジヒドロキシ-4,4’-ジメトキシベンゾフェノン、ジソディウム2,2’-ジヒドロキシ-4,4’-ジメトキシ-5,5’-ジサルフォベンゾフェノン、2,4-ジヒドロキシベンゾフェノン、2,2’,4,4’-テトラヒドロキシベンゾフェノン、4-tert-ブチル-4’-メトキシ-ジベゾイルメタン、2,4,6-トリアニリノ-p-カルボ-2’-エチルヘキシル-1’-オキシ)-1,3,5-トリアジン、アントラニル酸メンチル、2-(2-ヒドロキシ-5-メチルフェニル)ベンゾチリアゾール、及び2-(4-ジエチルアミノ-2-ヒドロキシベンゾイル)-安息香酸ヘキシルエステルからなる群から選択される1種又は2種以上である請求項8記載の乳化化粧料。
- 前記(D)有機系紫外線吸収剤が、2-(4―ジエチルアミノ-2-ヒドロキシベンゾイル)-安息香酸ヘキシルエステルである請求項8又は9記載の乳化化粧料。
- さらに、(E)プルラン、デキストラン、シクロソフォラン、ラミナリン、シゾフィラン、レンチナン、アラビノガラクタン、バーレイグルカン、リケナン、サクシノグリカン、キシログルカン、ローカストビーンガム、キサンタンガム、キトサン、プスツラン、カラギーナン、ヒアルロン酸及びその塩からなる群から選択される1種又は2種以上の多糖類を含有する請求項1~10のいずれか1項記載の乳化化粧料。
- 前記(E)多糖類がヒアルロン酸、ヒアルロン酸アルカリ金属塩又はキサンタンガムである請求項11記載の乳化化粧料。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/505,558 US8728503B2 (en) | 2009-11-06 | 2010-11-05 | Emulsion cosmetic |
EP10828330A EP2497457A1 (en) | 2009-11-06 | 2010-11-05 | Emulsion cosmetic |
KR1020127011511A KR101769169B1 (ko) | 2009-11-06 | 2010-11-05 | 유화 화장료 |
JP2011539393A JP5698675B2 (ja) | 2009-11-06 | 2010-11-05 | 乳化化粧料 |
CN201080048816.1A CN102596160B (zh) | 2009-11-06 | 2010-11-05 | 乳化化妆品 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-255092 | 2009-11-06 | ||
JP2009255092 | 2009-11-06 | ||
JP2009-267091 | 2009-11-25 | ||
JP2009267091 | 2009-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011055771A1 true WO2011055771A1 (ja) | 2011-05-12 |
Family
ID=43970007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/069655 WO2011055771A1 (ja) | 2009-11-06 | 2010-11-05 | 乳化化粧料 |
Country Status (9)
Country | Link |
---|---|
US (1) | US8728503B2 (ja) |
EP (2) | EP2918260B1 (ja) |
JP (2) | JP5698675B2 (ja) |
KR (1) | KR101769169B1 (ja) |
CN (1) | CN102596160B (ja) |
ES (1) | ES2638902T3 (ja) |
HK (1) | HK1212891A1 (ja) |
TW (1) | TWI480053B (ja) |
WO (1) | WO2011055771A1 (ja) |
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JP2013241318A (ja) * | 2012-04-27 | 2013-12-05 | Kao Corp | 疎水化処理した酸化亜鉛粒子の製造方法 |
JP2016155786A (ja) * | 2015-02-25 | 2016-09-01 | 花王株式会社 | 油中水型乳化化粧料 |
WO2022185982A1 (ja) * | 2021-03-02 | 2022-09-09 | 株式会社 資生堂 | 化粧料 |
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US8673329B2 (en) * | 2009-11-06 | 2014-03-18 | Kao Corporation | Oil-in-water-type emulsion cosmetic |
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KR20220163443A (ko) * | 2020-05-14 | 2022-12-09 | 카오카부시키가이샤 | 유중수형 유화 선스크린 화장료 |
JP2023162678A (ja) * | 2022-04-27 | 2023-11-09 | 住友大阪セメント株式会社 | 表面処理酸化亜鉛粒子、分散液、化粧料、表面処理酸化亜鉛粒子の製造方法 |
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JP2013147442A (ja) * | 2012-01-18 | 2013-08-01 | Kose Corp | グリチルレチン酸ステアリルの皮膚浸透促進剤 |
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WO2022185982A1 (ja) * | 2021-03-02 | 2022-09-09 | 株式会社 資生堂 | 化粧料 |
Also Published As
Publication number | Publication date |
---|---|
KR101769169B1 (ko) | 2017-08-17 |
ES2638902T3 (es) | 2017-10-24 |
JP6014184B2 (ja) | 2016-10-25 |
KR20120105441A (ko) | 2012-09-25 |
US20120219608A1 (en) | 2012-08-30 |
CN102596160A (zh) | 2012-07-18 |
JP5698675B2 (ja) | 2015-04-08 |
EP2918260B1 (en) | 2017-06-07 |
EP2918260A1 (en) | 2015-09-16 |
TW201124165A (en) | 2011-07-16 |
TWI480053B (zh) | 2015-04-11 |
HK1212891A1 (zh) | 2016-06-24 |
CN102596160B (zh) | 2014-06-18 |
EP2497457A1 (en) | 2012-09-12 |
JPWO2011055771A1 (ja) | 2013-03-28 |
US8728503B2 (en) | 2014-05-20 |
JP2015091894A (ja) | 2015-05-14 |
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