WO2024122402A1 - 油中水型乳化化粧料 - Google Patents
油中水型乳化化粧料 Download PDFInfo
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- WO2024122402A1 WO2024122402A1 PCT/JP2023/042558 JP2023042558W WO2024122402A1 WO 2024122402 A1 WO2024122402 A1 WO 2024122402A1 JP 2023042558 W JP2023042558 W JP 2023042558W WO 2024122402 A1 WO2024122402 A1 WO 2024122402A1
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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
- A61K8/064—Water-in-oil emulsions, e.g. Water-in-silicone emulsions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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
- A61K8/025—Explicitly spheroidal or spherical shape
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- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
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- 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
- A61K8/24—Phosphorous; Compounds thereof
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- A61K8/27—Zinc; Compounds thereof
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- 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
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- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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- A61K8/89—Polysiloxanes
- A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
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- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
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- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
Definitions
- the present invention relates to a water-in-oil emulsion cosmetic.
- Emulsion cosmetics are a commonly used formulation for cosmetics, and water-in-oil emulsion cosmetics in particular are widely used in foundations, primers, sunscreens, and other products because of the light spreadability of the oily outer phase and the long-lasting makeup.
- makeup durability When it comes to cosmetics, maintaining the cosmetic film that is formed over time (makeup durability) is a very important quality.
- Patent Document 1 proposes a composite powder of hydroxyapatite and zinc oxide, which has sebum-adsorbing properties.
- sebum solidifying powder fine metal oxide or hydroxyapatite, which can be used as a powder with sebum adsorption properties (hereinafter also referred to as sebum solidifying powder), into the water-in-oil type cosmetic. If the blended amount of sebum solidifying powder increases, the powder becomes difficult to disperse in the external phase of the water-in-oil type emulsion cosmetic, and in the case of a multi-layer type in which the powder has settled, the settled powder becomes difficult to redisperse in the external phase. If the dispersibility or redispersibility of the sebum solidifying powder decreases, the cosmetic becomes non-uniform, and the expected cosmetic effect may not be obtained.
- the present invention therefore aims to provide a water-in-oil emulsion cosmetic that has excellent powder dispersibility in the external phase and is resistant to makeup wear even in high-temperature, high-humidity environments such as when wearing a mask.
- Another object of the present invention is to provide a water-in-oil emulsion cosmetic that has a sustained pore-covering effect and does not or hardly causes a dry feeling even after application of the cosmetic.
- the present invention provides a water-in-oil emulsion cosmetic according to one aspect of the present invention that solves the above problems as follows.
- R 1 's are each independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and no aliphatic unsaturated bonds;
- R 2 's are each independently a polyoxyalkylene-containing group, a polyglycerin-containing group, or a group selected from the options for R 1 ;
- at least one R 2 in each R 2 3 SiO 1/2 unit is a polyoxyalkylene-containing group or a polyglycerin-containing group;
- R 3 's are each independently an organopolysiloxane-containing group, or a group selected from the options for R 1 ;
- at least one R 3 in each R 3 3 SiO 1/2 unit is an organopolysiloxane-containing group;
- X is a divalent group represented by the following general formula (2), in which (R 1 3-p (X 1/2 ) p SiO 1/2 ) may be a plurality of different structural units; and optionally R 2 , R 3 and
- R 4 is independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and no aliphatic unsaturated bond, e is an integer of 0 ⁇ e ⁇ 500, k is an integer of 0 ⁇ k ⁇ 5), a1, a2, a3, a4, b, c, and d are numbers satisfying 0 ⁇ a1 ⁇ 400, 0 ⁇ a2 ⁇ 200, 0 ⁇ a3 ⁇ 400, 0 ⁇ a4 ⁇ 10, 0 ⁇ b ⁇ 320, 0 ⁇ c ⁇ 320, 0 ⁇ d ⁇ 1,000, 0.5 ⁇ (a1+a2+a3+a4)/d ⁇ 1.5, and p is 1.) (D) containing spherical powder having an average particle size of 5 to 50 ⁇ m, A water-in-oil emulsion cosmetic, wherein the content of the component (A) in the cosmetic is 3 mass% or more.
- the water-in-oil emulsion cosmetic according to 1. wherein the component (A) contains at least one selected from the group consisting of zinc oxide, hydroxyapatite, and composite powders containing a metal oxide and hydroxyapatite.
- the water-in-oil emulsion cosmetic according to 1. or 2. wherein the amino acid of component (B) is at least one selected from the group consisting of amino acids (salts) having a hydroxyl group and amino acids (salts) having an amide bond.
- the water-in-oil emulsion cosmetic according to any one of 1. to 4., wherein the component (D) is at least one powder selected from the group consisting of silicone resin powder, urethane, nylon, cellulose acetate, cellulose, starch, polylactic acid, acrylic resin powder, and silica.
- a water-in-oil emulsion cosmetic according to any one of 1. to 8., having a viscosity of 10,000 mPa ⁇ s or less at 30°C.
- the present invention is not limited to the following preferred embodiment, and can be freely modified within the scope of the present invention.
- percentages are expressed by mass unless otherwise specified.
- the "average particle size" in this invention is a number standard value (D50) obtained by observing the surface state using a scanning electron microscope (JSM-7800prime, manufactured by JEOL Ltd.) and measuring the number of 1000 particles using an image analyzer (LUZEX AP, manufactured by Nireco Corporation).
- the median diameter D50 obtained from the distribution of the largest particle diameter is the average particle size in this invention.
- the range "X to Y” means “X or more and Y or less”.
- the operation and measurement of physical properties are performed under the conditions of room temperature (20 to 25°C) and relative humidity of 45 to 55% RH.
- One embodiment of the present invention comprises: The following components (A) to (D): (A) at least one selected from the group consisting of fine particles of metal oxide, hydroxyapatite, and composite powders containing metal oxide and hydroxyapatite; (B) at least one selected from the group consisting of amino acids and amino acid salts; (C) a crosslinked organosilicon resin represented by the following average composition formula (1):
- R 1 's are each independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and no aliphatic unsaturated bonds;
- R 2 's are each independently a polyoxyalkylene-containing group, a polyglycerin-containing group, or a group selected from the options for R 1 ;
- at least one R 2 in each R 2 3 SiO 1/2 unit is a polyoxyalkylene-containing group or a polyglycerin-containing group;
- R 3 's are each independently an organopolysiloxane-containing group, or a group selected from the options for R 1 ;
- at least one R 3 in each R 3 3 SiO 1/2 unit is an organopolysiloxane-containing group;
- X is a divalent group represented by the following general formula (2), in which (R 1 3-p (X 1/2 ) p SiO 1/2 ) may be a plurality of different structural units; and optionally R 2 , R 3 and
- R 4 is independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and no aliphatic unsaturated bonds, e is an integer of 0 ⁇ e ⁇ 500, k is an integer of 0 ⁇ k ⁇ 5), a1, a2, a3, a4, b, c, and d are numbers satisfying 0 ⁇ a1 ⁇ 400, 0 ⁇ a2 ⁇ 200, 0 ⁇ a3 ⁇ 400, 0 ⁇ a4 ⁇ 10, 0 ⁇ b ⁇ 320, 0 ⁇ c ⁇ 320, 0 ⁇ d ⁇ 1,000, 0.5 ⁇ (a1+a2+a3+a4)/d ⁇ 1.5, and p is 1.) (D) containing spherical powder having an average particle size of 5 to 50 ⁇ m,
- the cosmetic is a water-in-oil emulsion cosmetic, in which the content of the component (A) in the cosmetic is 3 mass % or more.
- the water-in-oil emulsion cosmetic of this form has excellent dispersibility of powder in the external phase, and is less likely to come off even in a high-temperature, high-humidity environment such as when wearing a mask, and therefore the cosmetic is less likely to transfer to the mask.
- the water-in-oil emulsion cosmetic of this form has a sustained pore-covering effect, and there is no or little feeling of dryness even after application of the cosmetic.
- components (B), (C), and (D) By blending components (B), (C), and (D), in a water-in-oil cosmetic containing a certain amount of component (A) of 3% by mass or more, the (re)dispersibility of the powder in the external phase is increased, and the effect of preventing makeup from coming off in a high-temperature, high-humidity environment is exhibited. On the other hand, even if any one of components (B), (C), and (D) is missing, the dispersibility of the powder and/or the makeup retention in a high-temperature, high-humidity environment is significantly reduced.
- component (B) causes component (B) to be adsorbed to the surface of component (A), which is a powder, thereby suppressing the aggregation of the powders, and the high molecular weight and bulky structure peculiar to component (C) effectively prevents the precipitation of component (A) adsorbed by component (B), and even if partial precipitation does occur, the incorporation of component (D), which is a spherical powder with an average particle size of 5 to 50 ⁇ m, can prevent dense precipitation of component (A), improving the (re)dispersibility of the powder in the external phase.
- component (C) maintains a state in which the uniformly dispersed component (A) having sebum adsorption ability and component (D) having pore covering effect are densely oriented.
- the moisture-retaining ability of the amino acid (salt) makes it difficult to feel the squeaky or dry sensation caused by component (A) for a long time, and even in harsh environments such as high temperature and humidity, the evenly distributed component (A) effectively adsorbs sebum secreted from the inside, and even in high humidity, component (C) does not mix with water, maintaining an evenly distributed cosmetic film, which is thought to significantly suppress adhesion of cosmetics to the mask.
- the above mechanism does not restrict the technical scope of the present invention in any way.
- Component (A) At least one selected from the group consisting of fine particle metal oxide, hydroxyapatite, and composite powder containing metal oxide and hydroxyapatite> Component (A) specifically adsorbs, in particular, fatty acids contained in sebum secreted from the skin and turns it into a gel.
- component (A) contains at least one selected from the group consisting of fine particle zinc oxide, hydroxyapatite, and composite powders containing metal oxide and hydroxyapatite.
- the content of at least one selected from the group consisting of fine particle zinc oxide, hydroxyapatite, and composite powders containing metal oxide and hydroxyapatite contained in component (A) is preferably 50 mass% or more (upper limit 100 mass%), but is not particularly limited.
- the metal oxide is not particularly limited as long as it is a metal oxide used in cosmetics, and any metal oxide can be used regardless of its particle shape (spherical, acicular, plate-like, amorphous, etc.) or particle structure (porous, non-porous, etc.).
- metal oxides include zinc oxide, titanium oxide, cerium oxide, iron oxide, etc., and these can be used alone or in combination of two or more.
- component (A) contains at least one selected from the group consisting of zinc oxide and titanium oxide.
- the metal oxide is zinc oxide.
- Metal oxides and hydroxyapatite may be surface-treated.
- surface treatments include fluorine compound treatment, silica treatment, hydrous silica treatment, alumina treatment, aluminum hydroxide treatment, silicone treatment (methicone treatment, dimethicone (dimethylpolysiloxane) treatment, hydrogen dimethicone treatment, etc.), silicone resin treatment, pendant treatment, silane coupling agent treatment (trimethoxyhexylsilane treatment, triethoxycaprylylsilane treatment, trimethoxyoctylsilane treatment, triethoxyoctylsilane treatment, etc.), titanium coupling agent treatment, silane treatment, oil treatment, polyacrylic acid treatment, metal soap treatment, acrylic resin treatment, and metal oxide treatment.
- the treatment amount (total) of the surface treatment agent is preferably 0.1 to 30 mass% based on the untreated powder.
- the surface-treated metal oxide is included in the content of component (A), excluding the surface treatment with component (B).
- component (A) may be surface-treated with component (B).
- component (B) Specific examples include fine particle metal oxides surface-treated with component (B) and hydroxyapatite surface-treated with component (B).
- the content of amino acid (salt) as the surface treatment agent is the content of component (B)
- the content of metal oxide (or metal oxide surface-treated with another surface treatment agent) excluding the amount of amino acid (salt) as the surface treatment agent is the content of component (A).
- component (A) does not have to be surface-treated with component (B).
- a conventional method can be used for the surface treatment.
- a surface treatment agent and powder particles to be treated are added to a solvent, and the mixture is stirred using a ball mill, bead mill, mixer, pulverizer, etc., and then dried as necessary, washed with water, and filtered repeatedly to remove impurities, and then dried and pulverized to obtain the desired surface-treated powder.
- several types of compounds that are surface treatment agents can be used for surface treatment at the same time, or one compound can be used for surface treatment first, and then another compound can be used for surface treatment.
- Fine particle metal oxide refers to particles with a particle diameter of 0.2 ⁇ m or less.
- the fine particle metal oxide is preferably a metal oxide with an average particle diameter of 0.01 to 0.15 ⁇ m, more preferably a metal oxide with an average particle diameter of 0.01 to 0.1 ⁇ m, and even more preferably a metal oxide with an average particle diameter of 0.01 to 0.05 ⁇ m.
- the average particle diameter of the metal oxide particles refers to the average particle diameter of the surface-treated metal oxide particles if surface treatment has been performed.
- Fine particle metal oxide products include, for example, FINEX-50 (manufactured by Sakai Chemical Industry Co., Ltd.), XZ-100F (manufactured by Sakai Chemical Industry Co., Ltd.: average particle size 0.1 ⁇ m), ZnO-350 (manufactured by Sumitomo Osaka Cement Co., Ltd.), fine particle zinc oxide MZ-500 (manufactured by Teika Corporation), MZY-505S (manufactured by Teika Corporation), MZY-505M (manufactured by Teika Corporation), MZ-500FT (manufactured by Teika Corporation), MZY-303 (manufactured by Teika Corporation), MZY-303S (manufactured by Teika Corporation: average particle size 0.035 ⁇ m), etc.
- FINEX-50 manufactured by Sakai Chemical Industry Co., Ltd.
- XZ-100F manufactured by Sakai Chemical Industry Co., Ltd.: average particle size 0.1 ⁇ m
- titanium oxide examples include zinc oxide MT-05 (manufactured by Teika Corporation), MT-100SA (manufactured by Teika Corporation), MTY-100SAS (manufactured by Teika Corporation), SMT-100SAS (manufactured by Teika Corporation), MT-500B (manufactured by Teika Corporation), SMT-500SAS (manufactured by Teika Corporation), SMT-500SAM (manufactured by Teika Corporation), and MICRO TITANIUM DIOXIDE MT-500SA (manufactured by Teika Corporation), and these can be used alone or in combination of two or more kinds.
- Hydroxyapatite is defined as calcium phosphate having an apatite structure, and examples thereof include one or more selected from Ca5 ( PO4 ) 3 ( OH), Ca10( PO4 ) 6 (OH) 2 , Ca4 ( PO4 ) 2O , Ca10 (PO4 ) 6F2 , and Ca3 ( PO4 ) 2 .
- the shape of the hydroxyapatite is not particularly limited, but may be, for example, plate-like, with an aspect ratio of, for example, 2 to 200.
- the average particle size of the hydroxyapatite is, for example, 1 to 100 ⁇ m, or 10 to 80 ⁇ m.
- An example of a composite powder containing hydroxyapatite and a metal oxide is a composite powder in which the surface of a base powder is coated with hydroxyapatite and zinc oxide.
- composite powder in which the surface of the base powder is coated with hydroxyapatite and zinc oxide.
- the order of coating can be simultaneous or multiple layers, and any form is acceptable as long as both are coated on the surface of the base powder.
- the mother powder is preferably a flaky powder from the viewpoint of (re)dispersibility in the external phase.
- the average particle size of the mother powder is preferably 0.1 to 50 ⁇ m, more preferably 0.3 to 30 ⁇ m, particularly preferably 1 to 20 ⁇ m, and most preferably 2 to 15 ⁇ m.
- the aspect ratio (average plate ratio) of the mother flaky powder is preferably 50 or more.
- Such a flaky powder may be a flaky powder or a granular or amorphous powder processed into a flaky form.
- the flaky powder examples include talc, kaolin, sericite, mica, synthetic mica (synthetic phlogopite, fluorine tetrasilicic mica, etc.), magnesium carbonate, aluminum silicate, magnesium silicate, aluminum magnesium silicate, calcium silicate, anhydrous silicic acid, boron nitride, magnesium oxide, alumina, titanium oxide, barium sulfate, carmine, bentonite, titanium oxide-coated mica, iron oxide-coated mica, iron oxide-coated titanium mica, organic pigment-coated titanium mica, bismuth oxychloride, glass powder, cellulose, etc. These may be used alone or in combination of two or more.
- the zinc oxide in the composite powder should be zinc oxide on the surface of the flaky powder.
- the average particle size of the zinc oxide at this time is preferably 0.01 to 1 ⁇ m from the viewpoint of effectively gelling fatty acids contained in sebum, which are the main cause of greasiness.
- the hydroxyapatite is similar to the hydroxyapatite described above.
- the shape of the hydroxyapatite used in the composite powder is preferably needle-like, in which case the major axis is preferably about 0.1 to 10 ⁇ m, more preferably about 0.1 to 5 ⁇ m, and even more preferably about 0.1 to 2 ⁇ m, on average, and the minor axis is preferably about 0.01 to 0.06 ⁇ m, more preferably about 0.01 to 0.04 ⁇ m, and even more preferably about 0.02 to 0.04 ⁇ m, on average.
- the mass ratio of hydroxyapatite and zinc oxide in the composite powder is preferably hydroxyapatite ⁇ zinc oxide, and the total mass % of hydroxyapatite and zinc oxide in the composite powder is preferably 15-80 mass%, more preferably 20-50 mass%, and even more preferably 25-40 mass%.
- the method of coating the flaky powder surface with hydroxyapatite and zinc oxide is not particularly limited, but for example, a method such as that described in JP-A-2004-315467 is used.
- calcium acetate is added to a liquid in which flaky powder is dispersed, and the liquid is heated (for example, at 85° C.), and then a mixed solution of sodium hydroxide and dibasic sodium phosphate is added to adjust the pH value to about 9 to 10.
- Sodium hydroxide solution is then added to adjust the pH value to about 11 to 12, and the mixture is aged at about 85° C. After aging, the mixture is cooled and the reaction solution is set to about 60° C. When the temperature reaches 60° C., a 5N sodium hydroxide solution is added to adjust the pH value to about 12, and then a 1M zinc chloride solution and a 5N sodium hydroxide solution are simultaneously dropped to maintain the pH value at about 12.
- the mixture is then cooled, filtered, washed with water, dried at about 120° C. for about 16 hours, and then crushed to obtain the product.
- the content of component (A) in the cosmetic is 3% by mass or more, preferably 5% by mass or more, and more preferably 7% by mass or more, from the viewpoint of solidifying sebum secreted even in a high-temperature and high-humidity environment and suppressing adhesion to the mask.
- the content of component (A) in the cosmetic is preferably 30% by mass or less, 25% by mass or less, 18% by mass or less, and 15% by mass or less, in order of preference, because this further improves powder dispersibility.
- the content of component (A) is preferably 5 to 30% by mass, 7 to 25% by mass, and 7 to 18% by mass, in that order.
- Component (B) at least one selected from the group consisting of amino acids and amino acid salts>
- amino acids and/or amino acid salts are also referred to as amino acids (salts).
- amino acidic amino acids As the amino acid, acidic amino acids, neutral amino acids, basic amino acids and salts thereof that are usually used in cosmetics and external skin preparations can be used.
- neutral amino acids amino acids having the same number of amino groups (-NH 2 ) and carboxy groups (-COOH)
- glycine trimethylglycine, alanine, valine, leucine, isoleucine, phenylalanine, tyrosine, threonine, serine, tryptophan, thyroxine, methionine, cysteine, asparagine, glutamine, pyrrolidone carboxylic acid, theanine, sarcosine, tranexamic acid, etc.
- acidic amino acids amino acids having more carboxy groups
- basic amino acids amino acids having more amino groups
- amino acid salts examples of counter bases include sodium, potassium, ammonium, triethanolamine, etc.
- the amino acids (salts) may be used alone or in combination of two or more types.
- the amino acid (salt) is preferably a neutral amino acid, more preferably at least one selected from the group consisting of amino acids having a hydroxyl group (serine, threonine, tyrosine, etc.) and their salts, and amino acids having an amide bond (glutamine, asparagine, theanine, etc.) and their salts, and even more preferably at least one selected from the group consisting of serine, threonine, theanine, and their salts.
- component (B) contains theanine (salt) is also preferred.
- the content of the amino acid (salt) as the surface treatment agent is the content of component (B)
- the content of the metal oxide excluding the amount of the amino acid (salt) as the surface treatment agent is the content of component (A).
- the content of component (B) is preferably 0.001% by mass or more, 0.005% by mass or more, 0.01% by mass or more, or 0.05% by mass or more, since this further improves the redispersibility of the powder. Also, since this suppresses adhesion of the cosmetic to the mask under high humidity conditions, the content of component (B) is preferably 3% by mass or less, 2% by mass or less, 1.5% by mass or less, 1% by mass or less, or 0.5% by mass or less. The content of component (B) is preferably 0.001 to 3% by mass, 0.005 to 2% by mass, 0.01 to 1.5% by mass, 0.1 to 1% by mass, respectively, and more preferably 0.1 to 0.5% by mass.
- Crosslinked organosilicon resin represented by average composition formula (1) (hereinafter also referred to simply as crosslinked organosilicon resin or crosslinked organosilicon resin of the present invention)>
- the component (C) used in the present invention is a crosslinked organosilicon resin represented by the following average composition formula (1):
- R 1 's are each independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and no aliphatic unsaturated bonds;
- R 2 's are each independently a polyoxyalkylene-containing group, a polyglycerin-containing group, or a group selected from the options for R 1 ; in each of the R 2 3 SiO 1/2 units, at least one R 2 is a polyoxyalkylene-containing group or a polyglycerin-containing group;
- R 3 's are each independently an organopolysiloxane-containing group, or a group selected from the options for R 1 ; in each of the R 3 3 SiO 1/2 units, at least one R 3 is an organopolysiloxane-containing group;
- X is a divalent group represented by the following general formula (2), in which (R 1 3-p (X 1/2 ) p SiO 1/2 ) may be a plurality of different structural units; and optionally R 2 , R 3
- R 4 are each independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and no aliphatic unsaturated bonds, e is an integer satisfying 0 ⁇ e ⁇ 500, and k is an integer satisfying 0 ⁇ k ⁇ 5), a1, a2, a3, a4, b, c, and d are numbers satisfying 0 ⁇ a1 ⁇ 400, 0 ⁇ a2 ⁇ 200, 0 ⁇ a3 ⁇ 400, 0 ⁇ a4 ⁇ 10, 0 ⁇ b ⁇ 320, 0 ⁇ c ⁇ 320, 0 ⁇ d ⁇ 1,000, and 0.5 ⁇ (a1+a2+a3+a4)/d ⁇ 1.5, and p is 1.
- R 1 is, independently of each other, a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms, preferably 1 to 10 carbon atoms, and having no aliphatic unsaturated bond.
- R 1 is, for example, an alkyl group, an aryl group, or an aralkyl group having 1 to 30 carbon atoms, or a group in which a hydrogen atom bonded to a carbon atom of these groups is substituted with a halogen atom, an amino group, or a carboxyl group.
- R 1 is preferably an alkyl group, an aryl group, an aralkyl group, a fluorine-substituted alkyl group, a chloro-substituted alkyl group, an amino-substituted alkyl group, or a carboxyl-substituted alkyl group having 1 to 10 carbon atoms.
- examples of R 1 include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a cyclopentyl group, a cyclohexyl group, a phenyl group, a tolyl group, a trifluoropropyl group, a heptadecafluorodecyl group, a chloropropyl group, and a chlorophenyl group.
- R 1 is preferably an alkyl group, a phenyl group, or a trifluoropropyl group having 1 to 5 carbon atoms.
- R2 are each independently a polyoxyalkylene-containing group, a polyglycerin-containing group, or a group selected from the options of R1, and in each R23SiO1 / 2 unit , at least one R2 is a polyoxyalkylene-containing group or a polyglycerin-containing group.
- R1 is as described above. Note that a part of R2 and R3 may be a hydroxyl group.
- the polyoxyalkylene-containing group is preferably represented by the following general formula (4).
- R5 is an unsubstituted or substituted monovalent hydrocarbon group having 1 to 30 carbon atoms or a hydrogen atom
- m, g1, and g2 are integers satisfying 0 ⁇ m ⁇ 15, 0 ⁇ g1 ⁇ 200, 0 ⁇ g2 ⁇ 200, and 0 ⁇ g1+g2 ⁇ 200).
- the polyglycerin-containing group is preferably represented by the following general formula (5):
- R 5 is an unsubstituted or substituted monovalent hydrocarbon group having 1 to 30 carbon atoms or a hydrogen atom, and m and h are integers satisfying 0 ⁇ m ⁇ 15 and 0 ⁇ h ⁇ 5).
- the R5s are each independently an unsubstituted or substituted monovalent hydrocarbon group having 1 to 30 carbon atoms or a hydrogen atom.
- R5 is preferably an alkyl group having 1 to 10 carbon atoms, more preferably 1 to 5 carbon atoms, or a hydrogen atom.
- Examples of the alkyl group include a methyl group, an ethyl group, a propyl group, a butyl group, and a pentyl group.
- the R5 may be a group in which a hydrogen atom bonded to a carbon atom of these groups is substituted with a halogen atom, an amino group, or a carboxyl group, such as a fluorine-substituted alkyl group, a chloro-substituted alkyl group, an amino-substituted alkyl group, or a carboxyl-substituted alkyl group.
- m is 0 ⁇ m ⁇ 15, and preferably 0 ⁇ m ⁇ 2.
- g1 is 0 ⁇ g1 ⁇ 200, and preferably 0 ⁇ g1 ⁇ 100, and more preferably 0 ⁇ g1 ⁇ 50. If g1 is 200 or more, the melting point of the resin will be low, which is not preferable in terms of lack of film-forming properties.
- g2 is 0 ⁇ g2 ⁇ 200, and preferably 0 ⁇ g2 ⁇ 100, and more preferably 0 ⁇ g2 ⁇ 50. If g2 is 200 or more, the melting point of the resin will be low, which is not preferable in terms of lack of film-forming properties.
- g1+g2 is 0 ⁇ g1+g2 ⁇ 200, and preferably 0 ⁇ g1+g2 ⁇ 100, and more preferably 0 ⁇ g1+g2 ⁇ 50. If g1+g2 is more than 50, the melting point of the resin will be low, which is not preferable in terms of lack of film-forming properties.
- the polyoxyalkylene portion is composed of both ethylene oxide units and propylene oxide units, it may be either a block copolymer or a random copolymer of these two units.
- h is 0 ⁇ h ⁇ 5, preferably 0 ⁇ h ⁇ 4, and more preferably 0 ⁇ h ⁇ 3. If h is greater than 5, the melting point of the resin becomes low, which is undesirable in terms of lack of film-forming properties.
- the organopolysiloxane - containing group is a group represented by the following general formula (6), general formula (7), general formula (8), or general formula (9).
- the organopolysiloxane - containing group is a group represented by the following general formula (6), general formula (7), general formula (8), or general formula (9).
- at least one R3 is a group represented by the following general formula (6), general formula (7), general formula (8), or general formula (9).
- R 6 are each independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and no aliphatic unsaturated bonds, n and i are integers satisfying 0 ⁇ n ⁇ 5 and 0 ⁇ i ⁇ 500, and j1 to j3 are each an integer of 0 or more and 2 or less.
- R 6 are each independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms, preferably 1 to 10 carbon atoms.
- R 6 is, for example, an alkyl group, an aryl group, an aralkyl group, or a group in which a hydrogen atom bonded to a carbon atom of these groups is substituted with a halogen atom, an amino group, or a carboxyl group.
- R 6 is preferably an alkyl group, an aryl group, an aralkyl group, a fluorine-substituted alkyl group, a chloro-substituted alkyl group, an amino-substituted alkyl group, or a carboxyl-substituted alkyl group.
- R 6 may be a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a cyclopentyl group, a cyclohexyl group, a phenyl group, a tolyl group, a trifluoropropyl group, a heptadecafluorodecyl group, a chloropropyl group, a chlorophenyl group, or the like.
- R 6 is more preferably an alkyl group having 1 to 5 carbon atoms, a phenyl group, or a trifluoropropyl group.
- n is 0 ⁇ n ⁇ 5, preferably 0 ⁇ n ⁇ 2, and i is 0 ⁇ i ⁇ 500, preferably 1 ⁇ i ⁇ 100, more preferably 1 ⁇ i ⁇ 50. If i is greater than 500, the resin will have a low melting point and will lack film-forming properties.
- j1 to j3 are each integers that satisfy 0 ⁇ j1 to 3 ⁇ 2.
- X is a divalent group represented by the following general formula (2):
- R 4 is independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and no aliphatic unsaturated bonds, e is an integer of 0 ⁇ e ⁇ 500, and k is an integer of 0 ⁇ k ⁇ 5), provided that optionally, a part of X may be a hydroxyl group, and in this case, X may be monovalent.
- (R 1 3-p (X 1/2 ) p SiO 1/2 ) may be a plurality of different structural units. That is, for example, it may be a structural unit of (R 1 3-p (X 1 1/2 ) p SiO 1/2 ) and (R 1 3-p (X 2 1/2 ) p SiO 1/2 ) (wherein X 1 and X 2 are divalent groups represented by general formula (2) and have mutually different structures).
- X 1 and X 2 are divalent groups represented by general formula (2) and have mutually different structures.
- a4 is the sum of a4' and a4''.
- R 4 is independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms, preferably 1 to 10 carbon atoms, and having no aliphatic unsaturated bond.
- R 4 is, for example, an alkyl group, an aryl group, an aralkyl group, or a group in which one or more hydrogen atoms bonded to the carbon atoms of these groups are replaced with a halogen atom, an amino group, or a carboxyl group.
- R 4 is preferably an alkyl group, an aryl group, an aralkyl group, a fluorine-substituted alkyl group, a chloro-substituted alkyl group, an amino-substituted alkyl group, or a carboxyl-substituted alkyl group.
- R 4 may be a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a cyclopentyl group, a cyclohexyl group, a phenyl group, a tolyl group, a trifluoropropyl group, a heptadecafluorodecyl group, a chloropropyl group, a chlorophenyl group, or the like.
- R 4 is more preferably an alkyl group having 1 to 5 carbon atoms, a phenyl group, or a trifluoropropyl group.
- e is 0 ⁇ e ⁇ 500, preferably 0 ⁇ e ⁇ 100, and more preferably 0 ⁇ e ⁇ 50. If e is greater than the upper limit, the melting point of the resin drops and the film properties are poor, which is not preferable.
- k is 0 ⁇ k ⁇ 5, preferably 0 ⁇ k ⁇ 3, and more preferably 0 ⁇ k ⁇ 1.
- the crosslinked organosilicon resin of the present invention necessarily has a group represented by the above formula (2).
- the group represented by formula (2) has a flexible skeleton, and therefore can impart flexibility to the organosilicon resin that enables it to form a self-supporting film.
- a1 is 0 ⁇ a1 ⁇ 400, preferably 1 ⁇ a1 ⁇ 100, and more preferably 1 ⁇ a1 ⁇ 50.
- a2 is 0 ⁇ a2 ⁇ 200, preferably 0 ⁇ a2 ⁇ 100, and more preferably 0 ⁇ a2 ⁇ 50.
- a3 is 0 ⁇ a3 ⁇ 400, preferably 0 ⁇ a3 ⁇ 100, and more preferably 0 ⁇ a3 ⁇ 50. If a3 is greater than 200, the melting point of the resin is low, resulting in a lack of filmability.
- a4 is 0 ⁇ a4 ⁇ 50, preferably 0 ⁇ a4 ⁇ 30, and more preferably 0 ⁇ a4 ⁇ 10. If a4 is greater than 50, the degree of crosslinking increases and the molecular weight increases, increasing the possibility of gelation. It is a number that satisfies 0 ⁇ b ⁇ 320, 0 ⁇ c ⁇ 320, 0 ⁇ d ⁇ 1,000, 0.5 ⁇ (a1+a2+a3+a4)/d ⁇ 1.5, and preferably 0.7 ⁇ (a1+a2+a3+a4)/d ⁇ 1.2.
- the crosslinked organosilicon resin of the present invention preferably has a weight average molecular weight of 1,000 to 1,000,000, more preferably 1,000 to 500,000, more preferably 3,000 to 300,000, and even more preferably 50,000 to 300,000. Being within the above range is more preferable in terms of performance and workability such as filtration.
- the weight average molecular weight can be determined as the weight average molecular weight converted into polystyrene by gel permeation chromatography (GPC) analysis (hereinafter the same).
- a4 in the above average composition formula (1) is 0 ⁇ a4 ⁇ 5
- e in the above general formula (2) is an integer that satisfies 0 ⁇ e ⁇ 40
- the group represented by the above general formula (2) has multiple groups with different structures, and at least one of the multiple groups has e that satisfies 0 ⁇ e ⁇ 40, is a solid at 25°C and can provide a crosslinked organosilicon resin with excellent film-forming properties.
- the resin has film-forming properties, but has a gel-like feel.
- a crosslinked organosilicon resin in which a4 in the above average composition formula (1) is 0 ⁇ a4 ⁇ 3 and e in the above general formula (2) is a number that satisfies 0 ⁇ e ⁇ 20 or a crosslinked organosilicon resin in which a4 in the above average composition formula (1) is 0 ⁇ a4 ⁇ 3, the group represented by the above general formula (2) has multiple groups with different structures, and at least one of the multiple groups has e that satisfies 0 ⁇ e ⁇ 40, is a crosslinked organosilicon resin that is solid at 25°C and has excellent film-forming properties. The resulting film exhibits excellent bending resistance and oil resistance.
- Crosslinked organosilicon resin can be synthesized by various methods known in the art. For example, crosslinking can be achieved by reacting the surface silanol group of organosilicon resin with organopolysiloxane having hydroxyl groups at both ends.
- crosslinking can be achieved by reacting the surface silanol group of organosilicon resin with organopolysiloxane having hydroxyl groups at both ends.
- organopolysiloxane having hydroxyl groups at both ends.
- the crosslinked organosilicon resin represented by the above average composition formula (1) can be obtained by subjecting an organosilicon resin containing hydrosilyl groups, which is represented by the following average composition formula (13) and is solid or liquid at 25°C, to a hydrosilylation reaction with one or more compounds containing terminal alkenyl groups represented by the following general formulas (11), (14), (15), (16), (17), (18) or (19) (including at least one group represented by the following formula (11)).
- the hydrosilylation reaction may also be carried out in the presence of a platinum catalyst or a rhodium catalyst.
- R1 is, independently of each other, a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and no aliphatic unsaturated bond, and examples of the monovalent hydrocarbon groups exemplified for R1 above are given; a1, a2, a3, a4, b, c, and d are numbers that satisfy 0 ⁇ a1 ⁇ 400, 0 ⁇ a2 ⁇ 200, 0 ⁇ a3 ⁇ 400, 0 ⁇ a4 ⁇ 10, 0 ⁇ b ⁇ 320, 0 ⁇ c ⁇ 320, 0 ⁇ d ⁇ 1,000, and 0.5 ⁇ (a1+a2+a3+a4)/d ⁇ 1.5, and p is 1.]
- the hydrosilyl group-containing organosilicon resin represented by the above average composition formula (13) is composed of essential components including Q units (SiO 4/2 ), M units ((R 1 3 SiO 1/2 ) and (H p R 1 3-p SiO 1/2 )) and optional components including D units (R 1 2 SiO 2/2 ) and T units (R 1 SiO 3/2 ).
- the hydrosilyl group-containing organosilicon resin represented by the above average composition formula (13) may be solid or liquid at 25° C., but is preferably solid from the viewpoint of film-forming properties.
- Examples of hydrosilyl group-containing organosilicon resin represented by the above average composition formula (13) include MQ resin, MTQ resin, MDQ resin and MDTQ resin.
- the weight average molecular weight is preferably in the range of 2,000 to 30,000, and more preferably in the range of 3,000 to 15,000 in terms of performance and workability such as filtration.
- the weight average molecular weight can be determined as a polystyrene-equivalent weight average molecular weight in gel permeation chromatography (GPC) analysis.
- the molar ratio of hydrosilyl group/terminally unsaturated group is preferably 0.5 to 2.0, more preferably 0.8 to 1.2.
- the hydrosilylation reaction is preferably carried out in the presence of a platinum or rhodium catalyst.
- a platinum or rhodium catalyst for example, chloroplatinic acid, alcohol-modified chloroplatinic acid, chloroplatinic acid-vinylsiloxane complex, etc. are preferred.
- the amount of platinum or rhodium used is preferably 50 ppm or less, and particularly preferably 20 ppm or less.
- the above addition reaction may be carried out in the presence of an organic solvent, if necessary.
- the organic solvent include cyclic organopolysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; aromatic hydrocarbons such as toluene and xylene; ketone-based organic solvents such as acetone, methyl ethyl ketone, diethyl ketone, and methyl isobutyl ketone; aliphatic hydrocarbons such as hexane, heptane, octane, and cyclohexane; and aliphatic alcohols such as methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-methyl-1-propanol, 2-butanol, 2-methyl-2-propanol, 1-pentanol, 2-methylbutan
- the amount of solvent used is preferably 1 to 80% by mass of the entire reaction liquid (system), and more preferably 5 to 50% by mass. Within the above range, the reaction system is kept uniform and the reaction proceeds efficiently.
- the addition reaction conditions are not particularly limited, but it is preferable to heat under reflux at a temperature of 50 to 150°C, more preferably 80 to 120°C, for about 1 to 10 hours.
- the amount of activated carbon used is preferably 0.001 to 5.0% by mass, and more preferably 0.01 to 1.0% by mass, of the entire system. If it is within the above range, it is possible to further suppress coloration of the sample.
- a step of removing remaining hydrosilyl groups can be included.
- a step of removing the hydrosilyl groups since the hydrosilyl groups may become inactivated over time by a dehydrogenation reaction.
- the process for removing hydrosilyl groups includes adding a basic catalyst such as an alkali metal carbonate, an alkali metal hydrogen carbonate, or an alkali metal hydroxide to hydrolyze unreacted hydrosilyl groups, and then adding an acid catalyst in an amount equal to the molar equivalent of the basic catalyst to neutralize.
- a basic catalyst such as an alkali metal carbonate, an alkali metal hydrogen carbonate, or an alkali metal hydroxide
- an acid catalyst in an amount equal to the molar equivalent of the basic catalyst to neutralize.
- Specific examples of basic catalysts include strong basic catalysts such as lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, and barium hydroxide, and weak basic catalysts such as sodium carbonate, calcium carbonate, and sodium hydrogen carbonate. In terms of promoting the dehydrogenation reaction, it is particularly preferable to use a strong basic catalyst, and specifically, sodium hydroxide is preferable.
- acid catalysts include hydrochloric acid, sulfuric acid, sulfurous acid, fuming sulfuric acid, oxalic acid, p-toluenesulfonic acid, methanesulfonic acid, trifluoroacetic acid, trifluoromethanesulfonic acid, phosphoric acid, formic acid, acetic acid, propionic acid, benzoic acid, and citric acid.
- a deodorizing process to reduce odors, if necessary.
- a deodorizing process since odors develop over time.
- the odor-developing mechanism of polyether-modified silicones is particularly common and can be explained as follows.
- an addition reaction is carried out between allyl-etherified polyether and hydrogen polyorganosiloxane in the presence of a platinum catalyst, the allyl group undergoes internal transfer as a side reaction to produce propenyl-etherified polyether.
- This propenyl-etherified polyether has no reactivity with hydrogen polyorganosiloxane, so it remains in the system as an impurity.
- the first method is to add an acid catalyst to the solution after the addition reaction to hydrolyze all the propenyl ether remaining in the system, and then remove the resulting propionaldehyde by strip purification (Patent Publication No. 2137062).
- acid catalysts used in the first recipe include hydrochloric acid, sulfuric acid, sulfurous acid, oleum, oxalic acid, p-toluenesulfonic acid, methanesulfonic acid, trifluoroacetic acid, trifluoromethanesulfonic acid, phosphoric acid, formic acid, acetic acid, propionic acid, benzoic acid, and citric acid.
- acids are used in combination with water, but when it is necessary to remove the acid that has been used, it is preferable to use acids with low boiling points such as hydrochloric acid, formic acid, acetic acid, and trifluoroacetic acid.
- strong acids such as hydrochloric acid and trifluoroacetic acid.
- the treatment temperature is preferably 80°C or less to prevent oxidation of the hydrophilic groups.
- the amount of acidic aqueous solution added is preferably 0.1 to 100% relative to the organic group-modified organosilicon resin, and more preferably 5 to 30%.
- an aqueous solution to the solution after the reaction so that the pH becomes 7 or less, and then heat and stir the solution before stripping and purifying it.
- the above stripping and purification can be carried out at room temperature or under reduced pressure, but the temperature condition is preferably 120°C or less, and in order to efficiently perform stripping and purification under this temperature condition, it is preferable to carry out the purification under reduced pressure, or, in the case of normal pressure, to carry out the purification under aeration of an inert gas such as nitrogen or argon.
- the second method is to add hydrogen to the solution after the addition reaction to alkylate the unsaturated double bonds (a so-called hydrogenation reaction), thereby stably controlling the generation of propionaldehyde over time (U.S. Patent No. 5,225,509, JP-A-7-330907).
- Hydrogenation reactions can be carried out using hydrogen or metal hydrides, and can also be homogeneous or heterogeneous. These can be carried out alone or in combination. However, heterogeneous catalytic hydrogenation reactions using solid catalysts are most preferable, as they have the advantage that the catalyst used does not remain in the product.
- Solid catalysts include, for example, nickel, palladium, platinum, rhodium, cobalt, chromium, copper, iron, and other elements or compounds.
- a catalyst carrier is not necessary, but if one is used, activated carbon, silica, silica alumina, alumina, zeolite, etc. are used. These catalysts can be used alone or in combination.
- the most preferred catalyst is Raney nickel, which is economically advantageous. Since Raney nickel is usually used by developing it with an alkali, it is particularly necessary to carefully measure the pH of the reaction solution. In addition, since the reaction system becomes weakly alkaline, a hydrolysis reaction using an acidic aqueous solution is particularly effective for deodorization.
- Hydrogenation reactions are generally preferably carried out at 1 to 100 MPa and 50 to 200°C.
- the hydrogenation reaction may be either batchwise or continuous. In the case of a batchwise reaction, the reaction time depends on the amount of catalyst and temperature, but is generally 3 to 12 hours.
- the hydrogen pressure can be adjusted to a constant pressure as needed, but the end point of the hydrogenation reaction is the point at which the hydrogen pressure no longer changes, and can be determined by carefully observing the pressure gauge.
- the amount of aldehyde contained in the organic-modified organosilicon resin refined by such acid treatment or hydrogenation reaction treatment can be reduced to 70 ppm or less, 20 ppm or less, or even 10 ppm or less.
- the acid treatment method can decompose and remove aldehyde compounds, but there is a limit to completely removing unsaturated double bonds, so it is not possible to completely suppress the generation of aldehydes, which are the cause of odors.
- the hydrogenation reaction method can reduce the amount of aldehyde compounds generated by eliminating unsaturated double bonds, but aldehyde condensates generated by condensation of some of the aldehydes remain in the system even after the above treatment, and are difficult to remove by strip purification.
- the hydrosilyl group-containing organosilicon resin represented by the average composition formula (13) may be in a solid or liquid form at 25° C., but is preferably in a solid form from the viewpoint of film-forming properties. From the viewpoint of usability, it is preferable to dilute it with an organic solvent. It is also preferable to use a solvent having a boiling point higher than the reflux temperature during hydrolysis.
- organic solvents used for dilution include cyclic organopolysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; aromatic hydrocarbons such as toluene and xylene; ketone-based organic solvents such as acetone, methyl ethyl ketone, diethyl ketone, and methyl isobutyl ketone; aliphatic hydrocarbons such as hexane, heptane, octane, and cyclohexane; and aliphatic alcohols such as methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-methyl-1-propanol, 2-butanol, 2-methyl-2-propanol, 1-pentanol, 2-methylbutanol, 2-pentanol, 1-hexanol
- the hydrosilyl group-containing organosilicon resin represented by the above average composition formula (13) may be produced according to a known method. For example, it can be produced according to the method described in JP 2017-75283 A (the disclosure of which is incorporated by reference in its entirety in the specification of U.S. Patent Application Publication No. 2018/0298148).
- the compound is obtained by hydrolyzing a mixture of one or more organic silicon compounds represented by the following general formula (20) or (21), one or more hydrosilyl group-containing organic silicon compounds represented by the following general formula (22) or (23), and one or more hydrolyzable silanes represented by the following general formula (24), partial hydrolysis condensates of the hydrolyzable silanes, and metal salts of the hydrolyzable silanes, under an acid catalyst, neutralizing the mixture by adding a base catalyst in an amount greater than the molar equivalent of the acid catalyst, and then condensing the mixture in the presence of a base catalyst.
- X1 , X2 , and X3 are each independently a hydrolyzable functional group directly bonded to a silicon atom, and examples of such functional groups include halogen atoms such as chlorine and bromine atoms, alkoxy groups such as methoxy, ethoxy, propoxy, and butoxy groups, alkenoxy groups, acyloxy groups, amide groups, and oxime groups. Among these, in terms of availability and hydrolysis rate, methoxy, ethoxy, and chlorine are particularly preferred.
- organosilicon compounds represented by the above general formula (20) include 1,1,1,3,3,3-hexamethyldisiloxane, 1,1,1,3,3,3-hexaphenyldisiloxane, 1,1,3,3-tetramethyl-1,3-divinyldisiloxane, 1,1,1,3,3,3-hexaethyldisiloxane, 1,1,1,3,3,3-hexavinyldisiloxane, 1,1,1,3,3-pentavinylmethyldisiloxane, 1,1,1,3,3-n-octylpentamethyldisiloxane, 1,1,1,3,3-chloromethylpentamethyldisiloxane, 1,1,3,3-tetramethyl-1,3-diallyldisiloxane, 1,3-dimethyl-1,1,3,3-tetravinyldisiloxane, etc.
- 1,1,1,3,3,3-hexamethyldisiloxane 1,1,1,
- organosilicon compounds represented by the above general formula (21) include trimethylchlorosilane, triethylchlorosilane, ethyldimethylchlorosilane, trivinylchlorosilane, dimethylvinylchlorosilane, triphenylchlorosilane, dimethylphenylchlorosilane, methyldiphenylchlorosilane, trimethylmethoxysilane, trimethylethoxysilane, triethylmethoxysilane, triethylethoxysilane, triphenylmethoxysilane, triphenylethoxysilane, etc.
- trimethylchlorosilane, trimethylethoxysilane, etc. are preferred.
- hydrosilyl-containing organosilicon compound represented by the above general formula (22) examples include 1,1,3,3-tetramethyldisiloxane and 1,1,1,3,3-pentamethyldisiloxane. 1,1,3,3-tetramethyldisiloxane is particularly preferred.
- p is in the range of 1 ⁇ p ⁇ 3, but in general formula (22), p relating to H, R 1 bonded to one silicon atom may be the same as or different from p relating to H, R 1 bonded to the other silicon atom.
- hydrosilyl group-containing organosilicon compound represented by the above general formula (23) examples include dimethylchlorosilane, diphenylchlorosilane, dimethylmethoxysilane, dimethylethoxysilane, etc. Dimethylchlorosilane and dimethylmethoxysilane are particularly preferred.
- hydrolyzable silanes represented by the above general formula (24) include tetrachlorosilane, tetramethoxysilane, tetraethoxysilane, etc.
- examples of partial hydrolyzed condensates of the hydrolyzable silanes include tetramethoxysilane condensates, tetraethoxysilane condensates, etc.
- examples of metal salts of the hydrolyzable silanes include water glass, sodium silicate, potassium silicate, etc. In particular, tetraethoxysilane and tetraethoxysilane condensates are preferred.
- a mixture of one or more compounds selected from the compounds represented by the above general formulas (20) to (24) can be added before hydrolysis under an acid catalyst, or after the hydrolysis and before the second hydrolysis described below, a mixture of one or more compounds selected from the organosilicon compounds represented by the following general formulas (25) or (26) can be added.
- X4 and X5 are each independently a hydrolyzable functional group directly bonded to a silicon atom, and examples of such functional groups include halogen atoms such as chlorine and bromine atoms, alkoxy groups such as methoxy, ethoxy, propoxy and butoxy groups, alkenoxy groups, acyloxy groups, amide groups, and oxime groups.
- halogen atoms such as chlorine and bromine atoms
- alkoxy groups such as methoxy, ethoxy, propoxy and butoxy groups
- alkenoxy groups acyloxy groups
- amide groups amide groups
- oxime groups oxime groups
- silicon compounds represented by general formula (25) include methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, pentyltriethoxysilane, phenyltriethoxysilane, benzyltriethoxysilane, chloropropyltriethoxysilane, bromopropyltriethoxysilane, cyclohexyltrimethoxysilane, trifluoropropyltrimethoxysilane, methyltrichlorosilane, etc.
- methyltrimethoxysilane, methyltriethoxysilane, and methyltrichlorosilane are preferred.
- silicon compounds represented by general formula (26) include dimethyldimethoxysilane, dimethyldiethoxysilane, diethyldimethoxysilane, dipentyldiethoxysilane, diphenyldiethoxysilane, dibenzyldiethoxysilane, dichloropropyldiethoxysilane, dibromopropyldiethoxysilane, dicyclohexyldimethoxysilane, difluoropropyldimethoxysilane, dimethyldichlorosilane, etc. Dimethyldimethoxysilane, dimethyldiethoxysilane, and dimethyldichlorosilane are particularly preferred.
- a solvent (particularly an organic solvent) and hydrolysis raw materials i.e., a mixture of one or more selected from organosilicon compounds represented by the above general formula (20) or (21), one or more selected from hydrosilyl-containing organosilicon compounds represented by the above general formula (22) or (23), and one or more selected from hydrolyzable silanes represented by the above general formula (24), partial hydrolysis condensates of the hydrolyzable silanes, and metal salts of the hydrolyzable silanes
- the organic solvent may be added after the end of the dropwise addition of water. Since it is preferable to carry out hydrolysis under acidic conditions, the addition of an acid catalyst is essential.
- the temperature when dripping water is preferably 0 to 80°C, and more preferably 0 to 50°C. By keeping the temperature within this range, the reaction heat resulting from the hydrolysis reaction of the hydrolysis raw material in the system can be suppressed.
- the amount of water to be dripped is in the range of 0.6 to 2, preferably 1.0 to 1.8, in terms of molar ratio to the hydrolyzable functional group (alkoxy group, etc.). By keeping the temperature within the above range, it is possible to further suppress the deactivation of the hydrosilyl group.
- a solvent for the hydrolysis reaction it is preferable to use an organic solvent in order to maintain a homogeneous reaction system during the hydrolysis reaction and to prevent a decrease in the reaction rate due to an increase in viscosity. It is also desirable to use a solvent with a boiling point higher than the reflux temperature during hydrolysis.
- organic solvents examples include cyclic organopolysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; aromatic hydrocarbons such as toluene and xylene; ketone-based organic solvents such as acetone, methyl ethyl ketone, diethyl ketone, and methyl isobutyl ketone; and aliphatic hydrocarbons such as hexane, heptane, octane, and cyclohexane.
- cyclic organopolysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane
- aromatic hydrocarbons such as toluene and xylene
- ketone-based organic solvents such as
- Alcohol solvents having 1 to 10 carbon atoms can also be used in some cases. Examples include methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-methyl-1-propanol, 2-butanol, 2-methyl-2-propanol, 1-pentanol, 2-methylbutanol, 2-pentanol, 1-hexanol, 2-methylpentanol, 1-heptanol, 1-octanol, 1-nonanol, 1-decanol, phenol, benzyl alcohol, ethylene glycol, and 1,2-propylene glycol.
- the amount of solvent used is preferably 1 to 80% (mass %, the same applies below) of the entire reaction liquid (system), and especially 5 to 50%. Within the above range, the reaction system is kept uniform and the reaction proceeds efficiently.
- acid catalysts include hydrochloric acid, sulfuric acid, sulfurous acid, oleum, oxalic acid, p-toluenesulfonic acid, methanesulfonic acid, trifluoromethanesulfonic acid, phosphoric acid, formic acid, acetic acid, propionic acid, benzoic acid, and citric acid.
- the amount of acid catalyst used may be small, and is preferably in the range of 0.001 to 10% of the entire reaction solution (system).
- the mixture is heated, for example, at a temperature of 50 to 150°C, more preferably 80 to 120°C, for about 2 to 8 hours to carry out the hydrolysis reaction.
- a temperature of 50 to 150°C more preferably 80 to 120°C, for about 2 to 8 hours.
- the reaction by carrying out the reaction at a temperature below the boiling point of the hydrosilyl group-containing organic compound used, the deactivation of the hydrosilyl group can be further suppressed.
- the hydrolysis raw material is thus hydrolyzed under an acid catalyst, it is cooled to 10 to 100°C, preferably 10 to 60°C, more preferably 10 to 30°C, and even more preferably to 25°C.
- the mixture is neutralized at 10 to 40°C with a base catalyst such as an alkali metal carbonate, an alkali metal hydrogen carbonate, or an alkali metal hydroxide.
- a base catalyst such as an alkali metal carbonate, an alkali metal hydrogen carbonate, or an alkali metal hydroxide.
- strong base catalysts include lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, and barium hydroxide.
- weak base catalysts include sodium carbonate, calcium carbonate, and sodium hydrogen carbonate.
- a combination of sodium hydroxide and calcium carbonate is desirable as a combination of a strong base catalyst and a weak base catalyst because it is easy to increase the molecular weight.
- the molecular weight increases sufficiently, making it possible to more reliably obtain a high molecular weight hydrosilyl group-containing organosilicon resin.
- the amount of base catalyst used must be greater than the molar equivalent of the acid catalyst. Neutralizing with a greater amount of base catalyst than the equivalent of the acid catalyst allows the condensation reaction of the organosilicon resin to take precedence, resulting in an increase in molecular weight and a high molecular weight hydrosilyl group-containing organosilicon resin to be obtained. It is preferable that the amount of base catalyst used is in the range of 1.1 to 3.0 molar equivalents of the acid catalyst. By keeping the amount added within the above range, the condensation reaction of the hydrosilyl group-containing organosilicon resin takes precedence, resulting in a resin with the desired molecular weight.
- the generated alcohols, solvent, and excess water may be removed by heating at 95-120°C under normal or reduced pressure. After confirming that the generated alcohols, solvent, and excess water have been removed, the condensation reaction is carried out, for example, by heating at 120-150°C for about 2-5 hours. This produces an organosilicon resin containing hydrosilyl groups.
- the ratio of the total amount of the compounds of the general formulae (20), (21), (22) and (23) to the amount of the SiO 4/2 unit of the compound of the general formula (24) is preferably 0.3:1 to 2:1, more preferably 0.6:1 to 1.3:1, as a molar ratio (((20), (21), (22) + (23)): (24)).
- the ratio of the total amount of the compounds of the formulae (20) and (21) to the total amount of the compounds of the formulae (22) and (23) is preferably 0.3:1.0 to 2.0:1.0, more preferably 0.6:1.0 to 1.3:1.0, as a molar ratio (((20) + (21)): ((22) + (23)).
- reaction formula In the manufacturing process for hydrosilyl-containing organosilicon resins, a reaction may occur in which some of the hydrosilyl groups are deactivated, as shown in the reaction formula below.
- the second hydrolysis reaction is preferably carried out by heating for about 2 to 8 hours at a temperature below the boiling point of the hydrosilyl group-containing organic compound to be reacted, for example, at a temperature of 40 to 150°C, more preferably at 40 to 120°C.
- a temperature below the boiling point of the hydrosilyl group-containing organic compound to be reacted for example, at a temperature of 40 to 150°C, more preferably at 40 to 120°C.
- the amount of hydrosilyl groups contained in the hydrosilyl group-containing organosilicon resin represented by the above average composition formula (13) can be easily adjusted by changing the amount of hydrosilyl group-containing organosilicon compound added, and large amounts can also be introduced. Furthermore, by changing the amount of hydrolysis raw material, the type and amount of acid catalyst added, reaction temperature, reaction time, and the amount and method of addition of solvent, the molecular weight distribution and shape of the organosilicon resin can be adjusted, and hydrosilyl group-containing organosilicon resins suitable for specific applications can be produced.
- R 1' is an alkenyl group having 2 to 8 carbon atoms
- R 1's are each independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and no aliphatic unsaturated bonds
- R 2 's are each independently a polyoxyalkylene-containing group, a polyglycerin-containing group, or a group selected from the options for R 1 , in each of the R 2 3 SiO 1/2 units, at least one R 2 is a polyoxyalkylene-containing group or a polyglycerin-containing group
- R 3 's are each independently an organopolysiloxane-containing group or a group selected from the options for R 1
- one or more of R 3 's in each R 3 3 SiO 1/2 unit is an organopolysiloxane-containing group.
- a1, a2, a3, b, c, and d are numbers that satisfy 0 ⁇ a5 ⁇ 5, 0 ⁇ a1 ⁇ 400, 0 ⁇ a2 ⁇ 200, 0 ⁇ a3 ⁇ 400, 0 ⁇ b ⁇ 320, 0 ⁇ c ⁇ 320, and 0 ⁇ d ⁇ 1,000, and 0.5 ⁇ (a1+a2+a3+a5)/d ⁇ 1.5.
- the molar ratio of terminal hydrosilyl groups to unsaturated groups can be selected within the range of 0.5 to 2.0, preferably 0.5 to 1.2 moles, more preferably 0.8 to 1.2, and even more preferably 0.9 to 1.1. If the ratio is too large, the amount of remaining hydrosilyl groups will increase, and the stability over time may deteriorate.
- This hydrosilylation reaction is preferably carried out in the presence of a platinum or rhodium catalyst.
- a platinum or rhodium catalyst for example, chloroplatinic acid, alcohol-modified chloroplatinic acid, chloroplatinic acid-vinylsiloxane complex, etc. are preferred.
- the amount of platinum or rhodium used is preferably 50 ppm or less, and more preferably 20 ppm or less.
- the above addition reaction may be carried out in the presence of an organic solvent, if necessary.
- the organic solvent include cyclic organopolysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; aromatic hydrocarbons such as toluene and xylene; ketone-based organic solvents such as acetone, methyl ethyl ketone, diethyl ketone, and methyl isobutyl ketone; aliphatic hydrocarbons such as hexane, heptane, octane, and cyclohexane; and aliphatic alcohols such as methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-methyl-1-propanol, 2-butanol, 2-methyl-2-propanol, 1-pentanol, 2-methylbutan
- the amount of solvent used is preferably 1 to 80% by mass of the entire reaction liquid (system), and more preferably 5 to 50% by mass. Within the above range, the reaction system is kept uniform and the reaction proceeds efficiently.
- the addition reaction conditions are not particularly limited, but it is preferable to heat under reflux at a temperature of 50 to 150°C, more preferably 80 to 120°C, for about 1 to 10 hours.
- the rhodium or platinum catalyst and hydrosilyl groups used can be removed by a process similar to that used in the addition reaction of an organosilicon resin having hydrosilyl groups and an organopolysiloxane having unsaturated groups at both ends.
- the crosslinked organosilicon resin may be solid, gel or liquid at 25°C, but from the viewpoint of film forming, solid or gel is preferred, and solid is particularly preferred.
- the cross-linked organosilicon resin is preferably in a solid state at 25°C and will form a film. Whether or not a film is formed can be determined by dropping 1.5 g of a solution diluted 60% with isododecane or decamethylcyclopentasiloxane onto PTFE (fluororesin), drying at 105°C for 3 hours, and checking whether or not a self-supporting film is formed. If a film is not formed, oil will seep out from cracks in the film, significantly reducing oil resistance, and the film will have poor conformability to the skin, resulting in an unnatural finish.
- PTFE fluororesin
- the crosslinked organosilicon resin may be used as an intermediate composition by preparing an O/W emulsion. That is, an O/W emulsion in which a solution of an optional oil agent of the crosslinked organosilicon resin is dispersed as a dispersed phase in a water phase, which is a continuous phase, is prepared as an intermediate composition, and a cosmetic product containing this emulsion can be prepared.
- an O/W emulsion in which a solution of an optional oil agent of the crosslinked organosilicon resin is dispersed as a dispersed phase in a water phase, which is a continuous phase, is prepared as an intermediate composition, and a cosmetic product containing this emulsion can be prepared.
- the method for preparing the O/W emulsion that serves as the intermediate composition can be prepared by a known method, such as a method of emulsifying using one or more types of surfactants with an HLB of 10 or more. Surfactants with an HLB of less than 10 or higher alcohols
- the amount of cross-linked organosilicon resin is preferably in the range of 0.1 to 40% by mass of the entire cosmetic, more preferably 0.1 to 20% by mass, even more preferably 0.3 to 15% by mass, and even more preferably 1 to 10% by mass. If it is 0.1% by mass or more, effects such as secondary adhesion, sustained pore covering effect, and no dry feeling are likely to be obtained, and if it is 40% by mass or less, the feeling during use (especially no dry feeling) will be good.
- the crosslinked organosilicon resin of the present invention can be dissolved in any oil and can be provided as a dissolved product.
- the oil is a volatile oil
- the oil evaporates, making it possible to form a film, and exerting its effect as a film-forming agent.
- the volatile oil form a film and exert its effect soon after the cosmetic is applied, and from this point of view, it is preferable to blend a volatile oil having a boiling point of 240°C or less.
- silicone oils such as decamethylpentasiloxane and dimethicone, isododecane, and ethanol are particularly preferable, and they can be appropriately selected and combined depending on the type of base base of the cosmetic.
- the base base is silicone-based
- silicone oil which improves the compatibility of the entire cosmetic composition.
- Silicone oil is preferable because it provides a good feel
- examples of commercially available products include TMF-1.5, KF-995, KF-96L-1cs, KF-96L-1.5cs, and KF-96L-2cs, manufactured by Shin-Etsu Chemical Co., Ltd.
- Component (D) Spherical powder with an average particle size of 5 to 50 ⁇ m>
- Component (D) is a spherical powder having an average particle size of 5 to 50 ⁇ m.
- the cosmetic of the present invention contains spherical powder with an average particle size of 5 to 50 ⁇ m, this does not exclude the cosmetic from containing spherical powder with an average particle size of less than 5 ⁇ m and/or spherical powder with an average particle size of more than 50 ⁇ m, and these powders may be contained as long as they do not impair the effects of the present invention.
- the amount of spherical powder with an average particle size of less than 5 ⁇ m and/or spherical powder with an average particle size of more than 50 ⁇ m in the cosmetic is preferably 5% by mass or less (lower limit 0% by mass), more preferably 3% by mass or less, and even more preferably 1% by mass or less.
- spherical does not only mean a perfect sphere, but also includes ellipsoids, approximate spheres, and those with minute holes or irregularities on the surface.
- a spherical shape is preferably one in which the ratio of the minor axis to the major axis is 1:1 to 1:2.
- spherical powders include inorganic powders such as zinc oxide, aluminum oxide, silicon dioxide (silica, silicic anhydride), magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, calcium sulfate, chromium oxide, chromium hydroxide, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, talc, kaolin, silicon carbide, barium sulfate, bentonite, smectite, and boron nitride; and acrylic resin powders such as polymethyl methacrylate, methyl methacrylate crosspolymer, acrylonitrile-methacrylic acid copolymer, and vinylidene chloride-methacrylic acid copolymer.
- inorganic powders such as zinc oxide, aluminum oxide, silicon dioxide (silica, silicic anhydride), magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, calcium sulfate, chromium oxide, chromium hydrox
- silicone resin powders such as (dimethicone/vinyl dimethicone) crosspolymer, (vinyl dimethicone/methicone silsesquioxane) crosspolymer, (diphenyl dimethicone/vinyl diphenyl dimethicone/silsesquioxane) crosspolymer, and polymethyl silsesquioxane; organic powders such as nylon, cellulose acetate, cellulose, polylactic acid, polyurethane, polyethylene, polystyrene, and (HDI/PPG/polycaprolactone) crosspolymer; and composite powders such as titanium oxide-containing silica and zinc oxide-containing silica. These powders may be used alone or in combination of two or more.
- component (D) is preferably at least one powder selected from the group consisting of silicone resin powder, urethane, nylon, cellulose acetate, cellulose, starch, polylactic acid, acrylic resin powder, and silica, more preferably at least one powder selected from the group consisting of cellulose acetate, cellulose, starch, polylactic acid, acrylic resin powder, and silica, and even more preferably at least one powder selected from the group consisting of cellulose, acrylic resin powder, and silica.
- the powder is plant-derived or inorganic powder are also preferred, and specifically at least one powder selected from the group consisting of cellulose, starch, and silica is preferred.
- component (D) is preferably a powder having an average particle size of 15 to 50 ⁇ m, and more preferably a spherical powder having an average particle size of 20 to 40 ⁇ m.
- a preferred embodiment of the present invention is Components (A) to (D):
- the water-in-oil emulsion cosmetic contains: (A) at least one type selected from the group consisting of fine particle metal oxides, hydroxyapatite, and composite powders containing metal oxides and hydroxyapatite; (B) at least one type selected from the group consisting of amino acids and amino acid salts; (C) a crosslinked organosilicon resin represented by average composition formula (1); and (D) spherical powders having an average particle size of 20 to 40 ⁇ m, wherein the content of component (A) in the cosmetic is 3% by mass or more.
- the particle size of the spherical powder can be measured using a laser diffraction particle size distribution analyzer.
- the average particle size is the volume average particle size.
- spherical powders with small particle sizes may be combined as in the following examples. That is, the particle size distribution may have two (or more) peaks, but in this case, it is sufficient that at least one peak (mode diameter) is between 5 and 50 ⁇ m.
- mode diameter peak
- spherical powders with an average particle size of 5 to 50 ⁇ m does not mean the average particle size of all spherical powders, but means that a particle group includes spherical powders with an average particle size of 5 to 50 ⁇ m.
- the spherical powder may be surface-treated.
- surface treatments include fluorine compound treatment, silica treatment, alumina treatment, aluminum hydroxide treatment, silicone treatment (methicone treatment, dimethicone treatment, hydrogen dimethicone treatment, etc.), silicone resin treatment, pendant treatment, silane coupling agent treatment, titanium coupling agent treatment, silane treatment, oil treatment, polyacrylic acid treatment, metal soap treatment, acrylic resin treatment, and metal oxide treatment.
- These surface treatments may be used alone or in combination of two or more.
- the treatment amount (total) of the surface treatment agent is preferably 0.1 to 30% by mass based on the untreated powder.
- component (D) may be surface-treated with component (B).
- the content of the amino acid (salt) as the surface treatment agent is defined as the content of component (B)
- the content of the spherical powder (or spherical powder surface-treated with another surface treatment agent) excluding the amount of the amino acid (salt) as the surface treatment agent is defined as the content of component (D).
- the surface treatment method is the same as described in the column for component (A) above.
- the content of component (D) is preferably 0.1% by mass or more, 0.5% by mass or more, and 1% by mass or more, in order of preference, as this further improves the dispersibility of the powder. Also, in order of preference, the content of component (D) is 20% by mass or less, 15% by mass or less, 10% by mass or less, and 5% by mass or less, in order of preference, in order of preference, as to the lack of dryness.
- the content of component (D) is preferably 0.1 to 20% by mass, 0.5 to 15% by mass, and 1 to 10% by mass, in that order.
- Component (E) Water> Since the present invention is a water-in-oil emulsion cosmetic, it usually contains component (E) water.
- Water is used as a dispersion medium, and is not particularly limited, but examples include purified water, distilled water, ion-exchanged water, tap water, hot spring water, deep sea water, etc.
- the water content is not particularly limited, but from the viewpoint of formulation stability of the water-in-oil emulsion cosmetic, it is preferably 5 to 60% by mass, and more preferably 10 to 45% by mass in the water-in-oil emulsion cosmetic.
- a lower alcohol having 2 to 4 carbon atoms, preferably 2 to 3 carbon atoms (e.g., ethanol) and/or a polyhydric alcohol may be used in combination with water.
- polyhydric alcohols include propylene glycol, 1,3-butylene glycol, dipropylene glycol, and tripropylene glycol. These may be used alone or in combination of two or more types.
- the content of the lower alcohol and/or polyhydric alcohol in the cosmetic is, for example, 1 to 20% by mass.
- Component (F) Oil> Since the present invention is a water-in-oil emulsion cosmetic, it usually contains component (F) an oily agent.
- the oil agent is not particularly limited, but may be an organopolysiloxane such as dimethylpolysiloxane (dimethicone), methylhydrogenpolysiloxane, methyltrimethicone, methylphenylpolysiloxane, or a dimethylsiloxane-methylphenylsiloxane copolymer; an cyclic siloxane such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetramethyltetrahydrogencyclotetrasiloxane, tetramethyltetraphenylcyclotetrasiloxane, tetramethyltetratrifluoropropylcyclotetrasiloxane, pentamethylpentatrifluoropropylcyclopentasiloxane, or diphenylsiloxyphenyltrime
- a non-volatile silicone having a viscosity (kinetic viscosity) of 1 to 50 mm 2 /s ( centistokes (cS)) at 25° C.
- KF-96A-6CS, KF-96-10CS, KF-96-50CS, KF-56 all manufactured by Shin-Etsu Chemical Co., Ltd.
- BELSIL DM 1 PLUS manufactured by Wacker Asahi Kasei Silicones
- the amount of oil contained is not particularly limited, but from the standpoint of preventing secondary adhesion and preventing a dry feeling, it is preferably 20 to 90% by mass, and more preferably 30 to 70% by mass in the water-in-oil emulsion cosmetic.
- composition (G) Surfactant> Since the present invention is a water-in-oil emulsion cosmetic preparation, it usually contains component (G) a surfactant.
- Surfactants include, but are not limited to, PEG-9 dimethicone, PEG-9 methyl ether dimethicone, PEG-10 dimethicone, cetyl PEG/PPG-10/1 dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PEG-9 polydimethylsiloxyethyl dimethicone, lauryl polyglyceryl 3-polydimethylsiloxyethyl dimethicone, bis(PEG/PPG-14/14) dimethicone.
- the amount of surfactant contained is not particularly limited, but from the viewpoint of (re)dispersibility of the powder in the external phase, it is preferably 0.01 to 10% by mass, and more preferably 0.5 to 5% by mass in the water-in-oil emulsion cosmetic.
- an acrylic-silicone graft copolymer may be further combined.
- the acrylic-silicone graft copolymer has the characteristics of both an acrylic acid group and a dimethylpolysiloxane group.
- the structure of these is not particularly limited, but may be a graft copolymer having a dimethylpolysiloxane group as the main chain and an acrylic acid group on the side chain, a linear block copolymer or crosslinked polymer in which a dimethylpolysiloxane group and an acrylic acid group are alternately bonded, or a polymer having an acrylic acid main chain and a dimethylpolysiloxane group on the side chain.
- the dimethylpolysiloxane group may be linear or have a branched structure, or may be one that has been co-modified with an organic group such as an alkyl group.
- the property is not particularly limited, but it is more preferable to use one that is liquid at 25°C.
- (acrylates/dimethicone) copolymer examples include (acrylates/dimethicone) copolymer, (acrylates/stearyl acrylate/dimethicone methacrylate) copolymer, (acrylates/ethylhexyl acrylate/dimethicone methacrylate) copolymer, (acrylates/behenyl acrylate/dimethicone methacrylate) copolymer, etc.
- Commercially available products include KP-540, KP-545L, KP-550, KP-545, KP-562, KP-561P, KP-578 (manufactured by Shin-Etsu Chemical Co., Ltd.), etc.
- (acrylates/ethylhexyl acrylate/dimethicone methacrylate) copolymer is preferred.
- an acrylic-silicone graft copolymer When an acrylic-silicone graft copolymer is used, its content in the cosmetic is, for example, 0.01 to 5% by mass, and may be 0.05 to 1% by mass.
- Cosmetics can contain various ingredients that are normally used in cosmetics.
- ingredients normally used in cosmetics include thickeners (gelling agents, polymers), colorants, powders other than colorants, lower alcohols such as ethanol, polyhydric alcohols, ultraviolet absorbers, pH adjusters, antioxidants, metal chelating agents, preservatives, fragrances, various drugs, and the like.
- ultraviolet absorbers examples include cinnamic acid derivatives, aminobenzoic acid derivatives, salicylic acid derivatives, benzophenone derivatives, phenylbenzimidazole derivatives, phenylbenzotriazole derivatives, and silicone derivatives.
- ultraviolet absorbers also include oils. The ultraviolet absorbers may be used alone or in combination of two or more.
- the method for producing the water-in-oil cosmetic of the present invention is not particularly limited, and the cosmetic can be prepared at room temperature.
- the cosmetic can be prepared by pre-dispersing components (A), (B) and (D) in an oil agent containing component (C), and then adding an aqueous component and emulsifying the mixture.
- the cosmetic of the present invention is not particularly limited, and examples thereof include makeup cosmetics such as a makeup base, foundation, eye color, lipstick, and lip cream, as well as skin care cosmetics such as a lotion, milky lotion, beauty essence, pack, face wash, and sunscreen.
- the cosmetic of the present invention is preferably used in makeup cosmetics such as sunscreen, makeup base (including BB cream), foundation, eye color, lipstick, and lip cream, and more preferably used in sunscreen, makeup base, and foundation, because the effects of the present invention are significantly exhibited.
- the shape of the item is not particularly limited, and examples include paste, cream, liquid, and multi-layered. Note that multi-layered refers to a type in which the powder has settled, and the container is shaken when used. Furthermore, it is possible to include a propellant in order to make the water-in-oil emulsion cosmetic of the present invention into an aerosol or spray type. There is no particular limit to the propellant, so long as it is one that is normally used in cosmetics. Specific examples include liquefied petroleum gas, dimethyl ether, nitrogen, nitrous oxide, and carbon dioxide gas.
- the viscosity of the water-in-oil emulsion cosmetic of the present invention (when a propellant is used, the viscosity of the base before the propellant is added) is preferably 25,000 mPa ⁇ s or less at 30°C, and more preferably 10,000 mPa ⁇ s or less.
- the higher the viscosity of the formulation the better the powder dispersibility, but high viscosity makes the cosmetic more likely to adhere to the mask.
- Examples 1 to 48 Water-in-oil emulsion cosmetics (sunscreen base)
- the cross-linked organosilicon resins of Production Examples 1 to 4, the theanine-treated zinc oxide of Production Example 5, and the theanine-treated hydroxyapatite of Production Example 6 in the table are manufactured by the following methods.
- the resulting decamethylcyclopentasiloxane solution of the crosslinked organosilicon resin was heated to 120-130°C under reduced pressure to remove the decamethylcyclopentasiloxane, leaving a solid powder (weight average molecular weight 156,000).
- the resulting decamethylcyclopentasiloxane solution of crosslinked organosilicon resin was heated to 120-130°C under reduced pressure, and the product obtained by removing the decamethylcyclopentasiloxane was in a solid form (weight average molecular weight 221,000).
- R4 and a part of X may be a hydroxyl group.
- the resulting decamethylcyclopentasiloxane solution of crosslinked organosilicon resin was heated to 120-130°C under reduced pressure to remove the decamethylcyclopentasiloxane, leaving a solid powder (weight average molecular weight 63,800).
- R2 -CH2 - CH2 - CH2- O-( C2H4O ) 5 ( C3H6O ) 2 - CH3
- a part of R2 and X may be a hydroxyl group.
- Viscosity The viscosity was measured at 30° C. using a Brookfield type rotational viscometer with a No. 2 rotor at 6 rpm, and measuring the average value for 1 minute.
- Example 49 Water-in-oil type emulsion shaking foundation
- Composition (mass%) (1) Isododecane 15.0 (2) Dimethylpolysiloxane (kinematic viscosity at 25°C: 2 cS) 10.0 (3) Cetyl PEG/PPG-10/1 Dimethicone *31 1.2 (4) Theanine (ingredient (B)) *11 0.3 (5) Neopentyl glycol diethylhexanoate 10.0 (6) 2-ethylhexyl p-methoxycinnamate 5.0 (7) 2-(4-diethylamino-2-hydroxybenzoyl) Benzoic acid hexyl ester 2.0 (8) Decamethylcyclopentasiloxane solution of the crosslinked organosilicon resin of Production Example 1 (resin purity: 60%) (Component (C)) 5.0 (9) Zinc oxide treated with 3% di
- B Components (8) to (14) were added to A and mixed and dispersed uniformly using a roll mill.
- C Components (15) to (18) were mixed uniformly.
- D C was added to B, and emulsified in a disperser mixer at 2000 rpm and room temperature for 5 minutes.
- E D was filled into a container to obtain a water-in-oil type emulsion shaking foundation.
- the water-in-oil emulsion shaking foundation of Example 49 obtained in the above manner was excellent in all of the following: "redispersibility of powder in liquid,” “effect of preventing secondary adhesion under high temperature conditions,” “effect of preventing secondary adhesion under high humidity conditions,” “sustained pore covering effect,” and “absence of dryness.”
- the viscosity of the water-in-oil emulsion shaking foundation of Example 49 was 10,000 mPa ⁇ s or less at 30°C.
- Example 50 Water-in-oil emulsion BB cream A water-in-oil emulsion BB cream was prepared according to the composition and manufacturing method shown below.
- Composition (%) (1) Isododecane 15.0 (2) Dimethylpolysiloxane (kinematic viscosity at 25°C: 2 cS) 10.0 (3) Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone *40 0.8 (4) PEG-9 polydimethylsiloxyethyl dimethicone * 41 0.4 (5) Sorbitan sesquiisostearate 0.6 (6) Neopentyl glycol diethylhexanoate 10.0 (7) 2-(4-diethylamino-2-hydroxybenzoyl) Benzoic acid hexyl ester 2.0 (8) Spherical cellulose powder (average particle size 30 ⁇ m) (component (D)) * 42 3.0 (9) Isododecane solution of the crosslinked organosilicon resin
- B Components (10) to (16) were added to A and mixed and dispersed uniformly using a roll mill.
- C Components (17) to (20) were mixed uniformly.
- D Components (1), (2), (8), and (9) were added to B and dispersed, and C was added and emulsified at room temperature for 5 minutes at 2000 rpm using a disper mixer.
- E D was filled into a container to obtain a water-in-oil type emulsion BB cream.
- the water-in-oil emulsion BB cream of Example 50 obtained in the above manner was excellent in all of the following: "redispersibility of powder in liquid,” “effect of preventing secondary adhesion under high temperature conditions,” “effect of preventing secondary adhesion under high humidity conditions,” “sustained pore covering effect,” and “absence of dryness.”
- the viscosity of the water-in-oil emulsion BB cream of Example 50 was 20,000 mPa ⁇ s at 30°C.
- Example 51 Water-in-oil emulsion sunscreen (liquid) (Composition) (%) 1.
- Dimethylpolysiloxane (25°C kinematic viscosity 6 cS) *10 10.0 6. Isododecane 3.0 7. Triethylhexanoin 2.0 8. Serine *12 (ingredient (B)) 1.0 9. Decamethylcyclopentasiloxane solution of the crosslinked organosilicon resin of Production Example 2 (resin pure content 60%) (Component (C)) 5.0 10.
- Propylene glycol dicaprylate 4.0
- 2-Ethylhexyl paramethoxycinnamate 7.0 12. Diethylamino hydroxybenzoyl hexyl benzoate 2.5 13.
- KF-96 10CS dimethylpolysiloxane
- the sunscreen of Example 51 obtained in the above manner was excellent in all of the following: "redispersibility of powder in liquid,” “effect of preventing secondary adhesion under high temperature conditions,” “effect of preventing secondary adhesion under high humidity conditions,” “sustained pore covering effect,” and “absence of dryness.”
- the viscosity of the sunscreen of Example 51 at 30°C was 10,000 mPa ⁇ s or less.
- Example 52 Water-in-oil emulsion sunscreen (liquid) (Composition) (%) 1. 2-Ethylhexyl paramethoxycinnamate 5.0 2. Theanine *11 (ingredient (B)) 2.0 3. Dimethylpolysiloxane (25°C kinematic viscosity 2 cS) 5.0 4. Isododecane 10.0 5. Isododecane solution of the crosslinked organosilicon resin of Production Example 4 (resin pure content 60%) (Component (C)) 3.0 6. PEG-9 Polydimethylsiloxyethyl Dimethicone *41 2.0 7. PEG-9 Dimethicone 2.5 8.
- Corn starch octenylsuccinate Al (average particle size 15 ⁇ m) (Component (D)) * 59 1.0 15. Mica 5.0 16. Purified water remaining 17. Ethanol 5.0 18. Glycerin 1.0 19. Polyacrylamide mixture *60 0.5 20.
- A Components (1) to (12) were uniformly mixed and dispersed using a roll mill.
- B A and components (13) to (15) were mixed and dispersed uniformly using a homomixer.
- C Components (16) to (20) were mixed uniformly.
- D B and C were emulsified and filled into a container to obtain a sunscreen cosmetic.
- the sunscreen of Example 52 obtained in the above manner was excellent in all of the following: "redispersibility of powder in liquid,” “effect of preventing secondary adhesion under high temperature conditions,” “effect of preventing secondary adhesion under high humidity conditions,” “sustained pore covering effect,” and “absence of dryness.”
- the viscosity of the sunscreen of Example 52 was 10,000 mPa ⁇ s or less at 30°C.
- Example 53 Aerosol Foundation (Composition) (%) 1. Fine particle titanium dioxide (average particle diameter 35 nm) (component (A)) 3.0 2. Fine particle zinc oxide (average particle diameter 25 nm) (component (A)) 6.0 3. Hydrophobized titanium oxide (average particle size 0.25 ⁇ m) 10.0 4. Iron oxide 3.0 5. (Acrylates/Ethylhexyl acrylate/Dimethicone methacrylate) Copolymer *7 2.0 6. Dimethylpolysiloxane (25°C kinematic viscosity 10 cS) 10.0 7. Dimethylpolysiloxane (25°C kinematic viscosity 2 cS) 3.0 8.
- Polyglyceryl-3 polydimethylsiloxyethyl dimethicone 1.0 9. Decamethylcyclopentasiloxane solution of the crosslinked organosilicon resin of Production Example 1 (resin pure content 60%) (Component (C)) 5.0 10. 2-Ethylhexyl paramethoxycinnamate 7.0 11. Diethylamino hydroxybenzoyl hexyl benzoate 2.5 12. Bisethylhexyloxyphenol methoxyphenyl triazine 1.5 13. Theanine *11 (ingredient (B)) 0.5 14. Threonine *13 (ingredient (B)) 1.0 15.
- Methyl methacrylate crosspolymer (average particle size 30 ⁇ m) *21 (Component (D)) 1.0 16. Trifluoropropyldimethyltrimethylsiloxysilicate 5.0 17. (Dimethicone/vinyl dimethicone) crosspolymer *27 (ingredient (D)) 2.0 18. Tripropylene glycol 3.0 19. Purified water remaining (production method)
- Components (1) to (6) were uniformly mixed and dispersed using a roller mill.
- B A and components (7) to (17) were mixed in a homomixer and dispersed uniformly.
- C Components (18) and (19) were mixed and added to B, and the mixture was emulsified at room temperature using a homomixer to obtain a stock solution.
- D 9 g of the stock solution obtained in C was poured into an aluminum pressure container, a valve was then attached, and 10 g of 0.15 LPG and 2 g of dimethyl ether were poured into the pressure container through the valve to obtain an aerosol type foundation.
- the aerosol type foundation of Example 53 obtained in the above manner was excellent in all of the following: "redispersibility of powder in liquid,” “effect of preventing secondary adhesion under high temperature conditions,” “effect of preventing secondary adhesion under high humidity conditions,” “sustained pore covering effect,” and “absence of dryness.”
- the viscosity of the concentrate of the aerosol type foundation of Example 53 was 10,000 mPa ⁇ s or less at 30°C.
- Example 54 Water-in-oil emulsion BB cream A water-in-oil emulsion BB cream was prepared according to the composition and manufacturing method shown below.
- Composition (%) (1) Isododecane 15.0 (2) Dimethylpolysiloxane (kinematic viscosity at 25°C: 2 cS) 10.0 (3) Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone *40 0.8 (4) PEG-9 polydimethylsiloxyethyl dimethicone * 41 0.4 (5) Sorbitan sesquiisostearate 0.6 (6) Neopentyl glycol diethylhexanoate 10.0 (7) 2-(4-diethylamino-2-hydroxybenzoyl) Benzoic acid hexyl ester 2.0 (8) Spherical cellulose powder (average particle size 30 ⁇ m) (component (D)) * 42 3.0 (9) Isododecane solution of the crosslinked organosilicon resin
- B Components (10) to (16) were added to A and mixed and dispersed uniformly using a roll mill.
- C Components (17) to (20) were mixed uniformly.
- D Components (1), (2), (8), and (9) were added to and dispersed in B, and C was added, followed by emulsification in a disper mixer at 2000 rpm at room temperature for 5 minutes.
- E D was filled into a container to obtain a water-in-oil type emulsion BB cream.
- the water-in-oil emulsion BB cream of Example 54 obtained in the above manner was excellent in all of the following: "redispersibility of powder in liquid,” “effect of preventing secondary adhesion under high temperature conditions,” “effect of preventing secondary adhesion under high humidity conditions,” “sustained pore covering effect,” and “absence of dryness.”
- the viscosity of the water-in-oil emulsion BB cream of Example 54 was 23,000 mPa ⁇ s at 30°C.
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Abstract
Description
1.次の成分(A)~(D):
(A)微粒子金属酸化物、ハイドロキシアパタイトならびに金属酸化物およびハイドロキシアパタイトを含む複合粉体からなる群から選択される少なくとも1種
(B)アミノ酸およびアミノ酸塩からなる群から選択される少なくとも1種
(C)下記平均組成式(1)で表される架橋型有機ケイ素樹脂
(D)平均粒子径5~50μmの球状粉体
を含有し、
前記成分(A)の化粧料中の含有量が3質量%以上である、油中水型乳化化粧料。
次の成分(A)~(D):
(A)微粒子金属酸化物、ハイドロキシアパタイトならびに金属酸化物およびハイドロキシアパタイトを含む複合粉体からなる群から選択される少なくとも1種
(B)アミノ酸およびアミノ酸塩からなる群から選択される少なくとも1種
(C)下記平均組成式(1)で表される架橋型有機ケイ素樹脂
(D)平均粒子径5~50μmの球状粉体
を含有し、
前記成分(A)の化粧料中の含有量が3質量%以上である、油中水型乳化化粧料である。
成分(A)は、肌から分泌される皮脂中の特に脂肪酸を特異的に吸着し、これをゲル化するものである。
本明細書においてアミノ酸および/またはアミノ酸塩をアミノ酸(塩)とも称する。
本発明に用いられる成分(C)は、下記平均組成式(1)で表される架橋型有機ケイ素樹脂
架橋型有機ケイ素樹脂は、当技術分野で既知として知られる様々な処方によって合成可能である。例えば、有機ケイ素樹脂の表面シラノール基に対して、両末端にヒドロキシル基を有するオルガノポリシロキサンを反応させることで架橋が可能である。しかし、有機ケイ素樹脂表面のシラノール基量の完全な制御が困難であることから、架橋するオルガノポリシロキサンの量を精度よく制御するのが難しいという問題点がある。そのため、ヒドロシリル基を有する有機ケイ素樹脂と両末端に不飽和基を有するオルガノポリシロキサンの付加反応か、不飽和基を有する有機ケイ素樹脂と両末端にヒドロシリル基を有するオルガノポリシロキサンの付加反応による合成法が好ましい。
上記平均組成式(13)で表されるヒドロシリル基含有有機ケイ素樹脂は、25℃で形状が固形状であっても、液状であってもよいが、皮膜形成性の点から固形状が好ましい。使用性の観点から有機溶剤により希釈することが好ましい。また、加水分解時の還流温度よりも高い沸点を有する溶剤の使用が好ましい。
R1 3SiX1(21)
HpR1 (3-p)SiOSiR1 (3-p)Hp(22)
HpR1 (3-p)SiX2(23)
SiX3 4(24)
(式中、R1は上記の通りであり、X1、X2、及びX3は互いに独立に、加水分解性を有する官能基であり、p=1である)。
R1 2SiX5 2(26)
(式中、R1は上記の通りである)
一般式(25)及び(26)において、X4及びX5は、互いに独立に、ケイ素原子に直接結合した加水分解性を有する官能基であり、塩素原子、臭素原子等のハロゲン原子;メトキシ基、エトキシ基、プロポキシ基、ブトキシ基等のアルコキシ基;アルケノキシ基;アシロキシ基;アミド基;オキシム基等が挙げられる。その中でも、入手の容易さ、加水分解速度の観点から特にメトキシ基、エトキシ基及び塩素原子が好ましい。
そこで、上記に示すヒドロシリル基含有有機ケイ素樹脂の製造方法において、上記一般式(20)及び(21)で表される有機ケイ素化合物から選ばれる1種又は2種以上と、上記一般式(22)で表される加水分解性シラン、該加水分解性シランの部分加水分解縮合物及び前記加水分解性シランの金属塩から選ばれる1種又は2種以上との混合物を、酸触媒下で加水分解を行った後に、上記一般式(22)及び(23)で表されるヒドロシリル基含有有機ケイ素化合物から選ばれる1種又は2種以上を徐々に滴下して添加して、再度加水分解を行うことにより、上記ヒドロシリル基の失活を抑制することができる。
上記平均組成式(30)で表されるアルケニル基含有有機ケイ素樹脂と、上記式(31)で表されるオルガノハイドロジェンポリシロキサンとのヒドロシリル化反応工程において、末端ヒドロシリル基/不飽和基のモル比は0.5~2.0の範囲から選択できるが、0.5~1.2モルが好ましく、0.8~1.2がより好ましく、0.9~1.1がさらに好ましい。上記比が大きすぎると、ヒドロシリル基の残存量が多くなり、経時安定性が悪化する可能性がある。
架橋型有機ケイ素樹脂は、25℃で固形状であっても、ゲル状であっても、液状であってもよいが、皮膜形成性の点から固形状またゲル状が好ましく、特に固形状が好ましい。特に、上記平均組成式(1)のa4が0<a4≦5を満たす数であり、上記一般式(2)のeが0<e≦20を満たす数である架橋型有機ケイ素樹脂、または、上記平均組成式(1)のa4が、0<a4≦5を満たす数であり、上記一般式(2)で表される基が異なる構造の複数の基を有し、当該複数の基の少なくとも一のeが、0<e≦20を満たす数である架橋型有機ケイ素樹脂は、25℃で固形状であり、重量平均分子量1,000~1,000,000の範囲を有するため好ましく、特には重量平均分子量3,000~500,000を有するのが性能及びろ過等の作業性の点でより好ましい。
成分(D)は、平均粒子径が5~50μmの球状粉体である。当該粉体を成分(B)、成分(C)と組み合わせて含むことで、成分(A)の粉体分散性が向上する。また、成分(D)を含むことで、毛穴カバー効果の持続性が向上する。
成分(A)~(D):
(A)微粒子金属酸化物、ハイドロキシアパタイトならびに金属酸化物およびハイドロキシアパタイトを含む複合粉体からなる群から選択される少なくとも1種
(B)アミノ酸およびアミノ酸塩からなる群から選択される少なくとも1種
(C)平均組成式(1)で表される架橋型有機ケイ素樹脂
(D)平均粒子径20~40μmの球状粉体
を含有し、前記成分(A)の化粧料中の含有量が3質量%以上である、油中水型乳化化粧料である。
本発明は油中水型乳化化粧料であるので、通常成分(E)水を含む。
本発明は油中水型乳化化粧料であるので、通常成分(F)油剤を含む。
本発明は油中水型乳化化粧料であるので、通常成分(G)界面活性剤を含む。
本発明においては、アクリル-シリコーングラフト共重合体をさらに組み合わせてもよい。アクリル-シリコーングラフト共重合体は、アクリル酸基とジメチルポリシロキサン基の両方の特性を有するものである。これらの構造は、特に限定しないが、ジメチルポリシロキサン基を主鎖として側鎖にアクリル酸基を有するグラフト共重合体であっても、ジメチルポリシロキサン基とアクリル酸基とが、交互に結合した直鎖状のブロック共重合体や架橋型の重合体であっても、アクリル酸を主鎖として側鎖にジメチルポリシロキサン基を有するものでもよい。前記ジメチルポリシロキサン基は、直鎖状であっても、分岐構造を有していてもよく、アルキル基等の有機基を共変性したものであってもよい。性状としては、特に限定されないが、25℃で液状であるものを用いることがより好ましい。具体的には、(アクリレーツ/ジメチコン)コポリマー、(アクリレーツ/アクリル酸ステアリル/メタクリル酸ジメチコン)コポリマー、(アクリレーツ/アクリル酸エチルヘキシル/メタクリル酸ジメチコン)コポリマー、(アクリレーツ/アクリル酸ベヘニル/メタクリル酸ジメチコン)コポリマー等が挙げられる。市販品としては、KP-540、KP-545L、KP-550、KP-545、KP-562、KP-561P、KP-578(信越化学工業社製)等が挙げられる。特に、(アクリレーツ/アクリル酸エチルヘキシル/メタクリル酸ジメチコン)コポリマーが好ましい。
化粧料には、通常化粧料に用いられる各種成分を配合することができる。通常化粧料に配合される成分としては、増粘剤(ゲル化剤、高分子)、着色剤、着色剤以外の粉体、エタノールなどの低級アルコール、多価アルコール、紫外線吸収剤、pH調整剤、酸化防止剤、金属キレート剤、防腐剤、香料、各種薬剤等を任意に配合することができる。
本発明の油中水型化粧料の製造方法は、特に限定されないが、常温で調製でき、例えば、成分(C)を含む油剤に成分(A)、成分(B)および成分(D)を事前分散した後に、更に水系成分を加え乳化することにより調製する方法等が挙げられる。
本発明の化粧料は、特に限定されないが、化粧用下地、ファンデーション、アイカラー、口紅、リップクリーム等のメイクアップ化粧料、化粧水、乳液、美容液、パック料、洗顔料、日焼け止め料等のスキンケア化粧料等が挙げられる。これらの中でも、本発明の効果が顕著に発揮される点から、日焼け止め料や、化粧用下地(BBクリームを含む)、ファンデーション、アイカラー、口紅、リップクリーム等のメイクアップ化粧料に好適に用いられ、さらに好ましくは日焼け止め料、化粧用下地、ファンデーションに好適に用いられる。
表1に示す組成(化粧料全体100質量%に対する質量%、以下同様)の油中水型乳化化粧料(下地日焼け止め料)を下記製造方法により調製し、液中での粉体の再分散性、二次付着防止(室温33℃湿度60%)、二次付着防止(室温25℃湿度90%)、粘度、毛穴カバー効果の持続、乾燥感のなさ(保湿感)の各項目について、以下に示す評価方法および判定基準により評価判定し、結果を併せて表1に示す。
架橋型有機ケイ素樹脂/デカメチルシクロペンタシロキサン60%溶液の製造方法
下記平均組成式(E1)で表される粉末状のヒドロシリル基含有有機ケイ素樹脂(重量平均分子量4,430,水素ガス発生量:9.1mL/g)の50%デカメチルシクロペンタシロキサン溶液1,000g、下記式(E2)で表される両末端にビニル基を有するオルガノポリシロキサン98.6g、2-プロパノール1,000g、塩化白金酸0.5%の2-プロパノール溶液0.6gを反応器に仕込み、80℃で6時間加熱することで反応を行った。その後、減圧下で加熱することで溶剤を留去した。さらに、エタノールを250g添加した後、5%水酸化ナトリウム水溶液5gを添加することで、未反応のヒドロシリル基を加水分解し、さらに濃塩酸0.63gを添加し中和を行った。反応物を減圧下で加熱して溶剤を留去し、濾過を行うことで、下記式(E3)で表される架橋型有機ケイ素樹脂のデカメチルシクロペンタシロキサン溶液(樹脂純分60%)を得た。また、得られた架橋型有機ケイ素樹脂のデカメチルシクロペンタシロキサン溶液を減圧下で120~130℃に加熱し、デカメチルシクロペンタシロキサンを除去することで得られた生成物は固形状の粉末であった(重量平均分子量156,000)。
式(E2):
(Me3SiO1/2)26.5(X1/2Me2SiO1/2)1.8(SiO2)36
[製造例2:架橋型有機ケイ素樹脂のデカメチルシクロペンタシロキサン溶液]
架橋型有機ケイ素樹脂/デカメチルシクロペンタシロキサン60%溶液の製造方法
下記平均組成式(E21)で表される固形状のヒドロシリル基含有有機ケイ素樹脂(重量平均分子量5,940,水素ガス発生量:8.3mL/g)の50%デカメチルシクロペンタシロキサン溶液800g、下記式(E22)で表される両末端にビニル基を有するオルガノポリシロキサン67.9g、下記式(E23)で表される両末端にビニル基を有するオルガノポリシロキサン221.3g、2-プロパノール800g、塩化白金酸0.5%の2-プロパノール溶液0.7gを反応器に仕込み、105℃で6時間加熱することで反応を行った。その後、減圧下で加熱することで溶剤を留去した。さらに、エタノールを200g添加した後、5%水酸化ナトリウム水溶液4.0gを添加することで、未反応のヒドロシリル基を加水分解し、さらに濃塩酸0.5gを添加し中和を行った。反応物を減圧下で加熱して溶剤を留去し、濾過を行うことで、下記平均組成式(E24)で表される架橋型有機ケイ素樹脂のデカメチルシクロペンタシロキサン溶液(樹脂純分60%)を得た。
式(E22):
架橋型有機ケイ素樹脂/デカメチルシクロペンタシロキサン60%溶液の製造方法
下記平均組成式(E25)で表される粉末状のヒドロシリル基含有有機ケイ素樹脂(重量平均分子量8,550,水素ガス発生量:10.0mL/g)の50%デカメチルシクロペンタシロキサン溶液1,300g、下記式(E26)で表される両末端にビニル基を有するオルガノポリシロキサン40.8g、2-プロパノール1,300g、塩化白金酸0.5%の2-プロパノール溶液0.8gを反応器に仕込み、100℃で6時間加熱することで反応を行った。その後、下記式(E27)で表される末端にビニル基を有するポリオキシアルキレンを82.7g添加して、100℃で6時間加熱することで反応を継続した後、さらに減圧下で加熱することで溶剤を留去した。さらに、エタノールを325g添加した後、5%水酸化ナトリウム水溶液6.5gを添加することで、未反応のヒドロシリル基を加水分解し、さらに濃塩酸0.8gを添加し中和を行った。中和後、0.01N塩酸水溶液を195g添加して未反応ポリオキシアルキレンのアリルエーテル基を加水分解し、5%重槽水3.3gで中和した。さらに反応液をオートクレープに移した後、ラネーニッケル50gを添加して、1MPaの水素圧で水素を流しながら100℃で3時間反応を行った。反応物を減圧下で加熱して溶剤を留去し、濾過を行うことで、下記平均組成式(E28)で表される架橋型有機ケイ素樹脂のデカメチルシクロペンタシロキサン溶液を得た。
式(E26):
式(E28):(Me3SiO1/2)52.0(X1/2Me2SiO1/2)1.1(R2Me2SiO1/2)2.7(SiO2)68.0
上記式(E28)においてR2及びXの一部は水酸基であってよい。
架橋型有機ケイ素樹脂/イソドデカン溶解品60%溶液の製造方法
下記平均組成式(E1)で表される粉末状のヒドロシリル基含有有機ケイ素樹脂(重量平均分子量4,430,水素ガス発生量:9.1mL/g)の50%イソドデカン溶液1,000g、下記式(E2)で表される両末端にビニル基を有するオルガノポリシロキサン98.6g、2-プロパノール1,000g、塩化白金酸0.5%の2-プロパノール溶液0.6gを反応器に仕込み、80℃で6時間加熱することで反応を行った。その後、減圧下で加熱することで溶剤を留去した。さらに、エタノールを250g添加した後、5%水酸化ナトリウム水溶液5gを添加することで、未反応のヒドロシリル基を加水分解し、さらに濃塩酸0.63gを添加し中和を行った。反応物を減圧下で加熱して溶剤を留去し、濾過を行うことで、架橋型有機ケイ素樹脂のイソドデカン溶液(樹脂純分60%)を得た。
式(E1):
(Me3SiO1/2)26.5(HMe2SiO1/2)1.8(SiO2)36.0式(E2):
(Me3SiO1/2)26.5(X1/2Me2SiO1/2)1.8(SiO2)36
微粒子酸化亜鉛(MZ-500:テイカ株式会社製)49.5gに、表面処理剤であるテアニン(太陽化学社製)0.5gを水70gに溶解させた溶液を添加混合し、これを風乾し、パルベライザーで粉砕して1.0%処理酸化亜鉛を得た。
ハイドロキシアパタイト(FL-HAP:太平化学産業株式会社製)49.5gに、表面処理剤であるテアニン(太陽化学社製)0.5gを水70gに溶解させた溶液を添加混合し、これを風乾し、パルベライザーで粉砕して1.0%処理ハイドロキシアパタイトを得た。
A.成分1~27を均一に混合した。
B.Aに、成分28~49を加え均一に混合した。
C.Bに成分50~52の溶解物を添加し、乳化混合した。
D.Cを脱泡し、油中水型下地化粧料を得た。
1.液中での粉体の再分散性評価
所定の方法にて調製した油中水型乳化化粧料を、ステンレスボールを入れたガラス瓶に充填し、50℃恒温槽内に静置し、1ヶ月後の微粒子金属酸化物またはハイドロキシアパタイトの沈降状態を、上下の振盪と目視で観察し、下記基準に従って、専門評価者20名が下記評価基準にしたがって4段階評価した。
5回振盪後に均一な分散状態となる :4
10回振盪後に均一な分散状態となる :3
20回振盪後に均一な分散状態となる :2
容器の底で固化しており振盪してもステンレスボールが動かない:1
<判定基準>
(判定):(評点平均値)
◎ :3.5点以上
○ :3.0点以上3.5点未満
△ :2.0点以上3.0点未満
× :1.0点未満。
所定の方法にて調整した油中水型乳化化粧料を、専門評価者20名が適量を手にとり、指で顔上に伸ばして使用し、室温33℃湿度60%と、室温25℃湿度90%の部屋でそれぞれ10時間過ごし、同環境下でティッシュオフを行った際の化粧膜の移り方を観察し、評価項目ごとに評価者各人が下記絶対評価にて5段階に評価し評点を付け、各サンプルのパネル全員の評点合計から、その平均値を算出し、判定した。なお、室温約25℃、湿度約60%程度の際、マスク内の条件が、N=5で、温度31~33℃湿度80~90%となったため、上記温・湿度設定により、擬似的にマスク内の条件とした。
(評点):(評価結果)
5点 :ティッシュへの化粧移りが非常に少ない
4点 :ティッシュへの化粧移りが少ない
3点 :普通
2点 :ティッシュへの化粧移りが多い
1点 :ティッシュへの化粧移りが非常に多い
<判定基準>
(判定):(評点平均値)
◎ :4.0点以上
○ :3.0点以上4.0点未満
× :3.0点未満。
粘度は30℃において、B型回転粘度計、ローター2号、6rpm、1分間平均値測定によって測定した。
前記油中水型乳化化粧料について専門評価者20名が適量を手にとり、指で顔上に伸ばして使用し、評価項目ごとに評価者各人が下記絶対評価にて5段階に評価し評点を付け、各サンプルのパネル全員の評点合計から、その平均値を算出し、下記判定基準により判定した。
毛穴カバー効果の持続 :肌の毛穴が目立たない状態が維持されているかどうか
乾燥感の無さ :塗布した肌が乾燥するなどの嫌な感覚がないかどうか
<評価基準>
(評点):(評価結果)
5点 :良好
4点 :やや良好
3点 :普通
2点 :やや不良
1点 :不良
<判定基準>
(判定):(評点平均値)
◎ :4.0点以上
○ :3.0点以上4.0点未満
× :3.0点未満
※2:MZ-500(テイカ社製)を表面処理したもの
※3:MZY-505M(テイカ社製)
※4:FL-HAP(太平化学産業株式会社製)
※5:MIYOSTAY Z20S-150(三好化成社製)
※6:MZ-500FT(テイカ社製)
※7:KP-578(信越化学工業社製)
※8:サラコスHS-6C(日清オイリオグループ社製)
※9:BELSIL DM 1 PLUS(旭化成ワッカーシリコーン社製)
※10:シリコン KF-96A(6CS)(信越化学工業社製)
※11:サンテアニン CG100(太陽化学社製)
※12:L-セリン(日本理化学薬品社製)
※13:L-トレオニン(純正化学社製)
※14:GLYCINE(THANACHEM社製)
※15:アミノコート(旭化成ファインケム)
※16:アミソフト LS-11
※17:AEROJIL R976S(日本アエロジル社製)
※18:ゴッドボールE-90C(鈴木油脂工業社製)97%に(ジメチコン/ビニルジメチコン)クロスポリマー(KSG-15、信越化学工業社製)を20%処理し、揮発性油を蒸発させたもの。※19:ゴッドボールE-90C(鈴木油脂工業社製)
※20:CELLOBEADS D-30(大東化成工業社製)にステアリン酸Mgを2%処理※21:MX3000C(綜研化学社製)
※22:KSP-102(信越化学工業社製)
※23:シリカマイクロビードN-1505(日揮触媒化成社製)
※24:CS-400(根上工業社製)
※25:KSP-101(信越化学工業社製)
※26:ケミスノーMR-5C(綜研化学社製)
※27:KSP-100(信越化学工業社製)
※28:トスパール2000B*(モメンティブ社製)
※29:ゴッドボールE2-824C(鈴木油脂工業社製)
※30:MSP-N050(日興リカ社製)
以上の結果より、実施例1から48の油中水型乳化化粧料(下地日焼け止め料)は、「液中での粉体の再分散性」「高温条件での二次付着防止効果」「高湿条件での二次付着防止効果」「毛穴カバー効果の持続」「乾燥感の無さ」のすべてにおいて優れているものであった。一方、成分(A)を含有しない比較例1は、二次付着防止効果、乾燥感のなさの点で、成分(B)を含有しない比較例2は、粉体の再分散性、二次付着防止効果、乾燥感のなさの点で、成分(C)の代わりに皮膜形成剤であるトリメチルシロキシケイ酸を含有した比較例3は、二次付着防止効果、毛穴カバー効果、乾燥感のなさの点で、成分(D)を配合しない比較例4は、粉体の再分散性、毛穴カバー効果の点で、著しく劣るものであった。
下記に示す組成及び製造方法で、油中水型シェーキングファンデーションを調製した。
(組成) (質量%)
(1)イソドデカン 15.0
(2)ジメチルポリシロキサン(25℃動粘度 2cS) 10.0
(3)セチルPEG/PPG-10/1ジメチコン*31 1.2
(4)テアニン(成分(B))※11 0.3
(5)ジエチルヘキサン酸ネオペンチルグリコール 10.0
(6)パラメトキシケイ皮酸2-エチルへキシル 5.0
(7)2-(4-ジエチルアミノ-2-ヒドロキシベンゾイル)
安息香酸へキシルエステル 2.0
(8)製造例1の架橋型有機ケイ素樹脂の
デカメチルシクロペンタシロキサン溶液(樹脂純分60%)(成分(C))
5.0
(9)ジメチルポリシロキサン3%処理酸化亜鉛(平均粒子径25nm)(成分(A))
9.0
(10)トリエトキシカプリリルシラン2%処理黒色酸化鉄 0.3
(11)トリエトキシカプリリルシラン2%処理黄色酸化鉄 1.8
(12)トリエトキシカプリリルシラン2%処理ベンガラ 0.6
(13)トリエトキシカプリリルシラン2%処理タルク 1.0
(14)球状シリカ(平均粒子径30μm)※19(成分(D)) 5.0
(15)精製水 残量
(16)エタノール 5.0
(17)トリプロピレングリコール 10.0
(18)PEG/PPG/ポリブチレングリコール-8/5/3グリセリン
*32 1.0
*31 ABIL EM-90(Evonik社製)
*32 WILBRIDE S-753D(日油社製)
(製造方法)
A:成分(1)~(7)を80℃に加温して均一に混合溶解した。
B:成分(8)~(14)をAに添加し、ロールミルにて均一に混合分散した。
C:成分(15)~(18)を均一に混合した。
D:BにCを加え、ディスパーミキサーで2000rpm、室温で5分間乳化した。
E:Dを容器に充填し、油中水型乳化シェーキングファンデーションを得た。
下記に示す組成及び製造方法で、油中水型乳化BBクリームを調製した。
(組成) (%)
(1)イソドデカン 15.0
(2)ジメチルポリシロキサン(25℃動粘度 2cS) 10.0
(3)ラウリルPEG-9ポリジメチルシロキシエチルジメチコン*40
0.8
(4)PEG-9ポリジメチルシロキシエチルジメチコン*41 0.4
(5)セスキイソステアリン酸ソルビタン 0.6
(6)ジエチルヘキサン酸ネオペンチルグリコール 10.0
(7)2-(4-ジエチルアミノ-2-ヒドロキシベンゾイル)
安息香酸へキシルエステル 2.0
(8)球状セルロース粉末(平均粒子径30μm)(成分(D))*42
3.0
(9)製造例4の架橋型有機ケイ素樹脂のイソドデカン溶液
(樹脂純分60%)(成分(C)) 10.0
(10)ジメチルポリシロキサン3%処理ハイドロキシアパタイト
(平均粒子径20nm)(成分(A)) 9.0
(11)トリエトキシカプリリルシラン2%処理黒色酸化鉄 0.3
(12)トリエトキシカプリリルシラン2%処理黄色酸化鉄 1.8
(13)トリエトキシカプリリルシラン2%処理ベンガラ 0.6
(14)トリエトキシカプリリルシラン2%処理タルク 1.0
(15)ジメチルジステアリルアンモニウムヘクトライト 1.5
(16)ベンジルジメチルステアリルアンモニウムヘクトライト 0.6
(17)セリン※12(成分(B)) 0.5
(18)精製水 残量
(19)エタノール 5.0
(20)ジプロピレングリコール 10.0
*40:KF-6038(信越化学工業株式会社製)
*41:KF-6028(信越化学工業株式会社製)
*42:CELLOBEADS D-30(大東化成工業社製)
(製造方法)
A:成分(3)~(7)を80℃に加温して均一に混合溶解した。
B:成分(10)~(16)をAに添加し、ロールミルにて均一に混合分散した。
C:成分(17)~(20)を均一に混合した。
D:Bに成分(1)、(2)、(8)、(9)を加えて分散し、Cを加え、ディスパーミキサーで2000rpm、室温で5分間乳化した。E:Dを容器に充填し、油中水型乳化BBクリームを得た。
(組成) (%)
1.ジメチルポリシロキサン3%処理微粒子酸化チタン
(平均粒子径35nm)(成分(A)) 2.0
2.ジメチルポリシロキサン5%処理微粒子酸化亜鉛(平均粒子径25nm)
(成分(A))※3 10.0
3.(アクリレーツ/アクリル酸エチルヘキシル/メタクリル酸ジメチコン
)コポリマー※7 2.0
4.ジメチルポリシロキサン(25℃動粘度1.1cS)※9 15.0
5.ジメチルポリシロキサン(25℃動粘度 6cS)※10 10.0
6.イソドデカン 3.0
7.トリエチルヘキサノイン 2.0
8.セリン※12(成分(B)) 1.0
9.製造例2の架橋型有機ケイ素樹脂の
デカメチルシクロペンタシロキサン溶液(樹脂純分60%)(成分(C))
5.0
10.ジカプリン酸プロピレングリコール 4.0
11.パラメトキシケイ皮酸2-エチルヘキシル 7.0
12.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 2.5
13.ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジン
1.5
14.(アクリル酸アルキル/酢酸ビニル)コポリマー
非水溶媒ディスパージョン*50 3.3
15.ポリ乳酸(平均粒子18.5μm)*51(成分(D)) 1.0
16.ジメチルポリシロキサン3%処理球状シリカ(平均粒子30μm)
(成分(D))*52 0.5
17.フェノキシエタノール 0.1
18.ラウリルPEG-9ポリジメチルシロキシエチルジメチコン*40
3.0
19.PEG-9ポリジメチルシロキシエチルジメチコン*41 1.0
20.1,3-ブチレングリコール 3.0
21.エタノール 5.0
22.ポリクオタニウム-104 0.5
23.シロキクラゲエキス 0.1
24.グリセリン 1.0
25.精製水 残量
*50:ニッセツ U-3712A(日本カーバイド工業社製)
*51:LUSMAPOL(登録商標)AL120R(LX Hausys社製)
*52:球状シリカ(※19)48.5gに、表面処理剤であるジメチルポリシロキサン(信越化学工業社製KF-96 10CS)1.5gとイソプロパノール100gを添加混合し、これを減圧乾燥し、ジメチルポリシロキサン3%処理球状シリカを得た。
(製造方法)
A:成分(1)~(9)をロールミルにて均一に混合分散した。
B:Aと成分(10)~(19)をホモミキサーにて混合分散した。
C:成分20~25を均一に混合溶解した。
D:BにCを加え乳化し、日焼け止め料を得た。
(組成) (%)
1.パラメトキシ桂皮酸2-エチルヘキシル 5.0
2.テアニン※11(成分(B)) 2.0
3.ジメチルポリシロキサン(25℃動粘度 2cS) 5.0
4.イソドデカン 10.0
5.製造例4の架橋型有機ケイ素樹脂のイソドデカン溶液(樹脂純分60%)
(成分(C)) 3.0
6.PEG-9ポリジメチルシロキシエチルジメチコン*41 2.0
7.PEG-9ジメチコン 2.5
8.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
9.ジメチルポリシロキサン処理微粒子酸化亜鉛(平均粒子径25nm)
(成分(A)) 5.0
10.ジメチルポリシロキサン処理微粒子酸化チタン(平均粒子径35nm)
(成分(A)) 5.0
11.ステアラルコニウムヘクトライト 0.5
12.ジメチルジステアリルアンモニウムヘクトライト 0.5
13.ジメチルポリシロキサン5%処理シリカ(平均粒子径12±3μm)
(成分(D))*61 2.0
14.オクテニルコハク酸トウモロコシデンプンAl(平均粒子径15μm)
(成分(D))*59 1.0
15.マイカ 5.0
16.精製水 残量
17.エタノール 5.0
18.グリセリン 1.0
19.ポリアクリルアミド混合物 *60 0.5
20.香料 適量
*59:DRY-FLO PURE(ヌーリオン・ジャパン株式会社製)
*60:セピゲル501(SEPPIC社製)
*61:球状シリカ(日揮触媒化成社製シリカマイクロビードP-1505)95gに、表面処理剤であるジメチルポリシロキサン(信越化学工業社製KF-96 100CS)5gとイソプロパノール50gを添加混合し、これを減圧乾燥し、ジメチルポリシロキサン5%処理球状シリカを得た。
(製造方法)
A:成分(1)~(12)をロールミルにて均一に混合分散した。
B:Aと成分(13)~(15)をホモミキサーにて均一に分散混合した。
C:成分(16)~(20)を均一に混合した。
D:BとCを乳化し、容器に充填して日焼け止め化粧料を得た。
(組成) (%)
1.微粒子酸化チタン(平均粒子径35nm)(成分(A)) 3.0
2.微粒子酸化亜鉛(平均粒子径25nm)(成分(A)) 6.0
3.疎水化処理酸化チタン(平均粒子径0.25μm) 10.0
4.酸化鉄 3.0
5.(アクリレーツ/アクリル酸エチルヘキシル/メタクリル酸ジメチコン)
コポリマー※7 2.0
6.ジメチルポリシロキサン(25℃動粘度 10cS) 10.0
7.ジメチルポリシロキサン(25℃動粘度 2cS) 3.0
8.ポリグリセリル-3ポリジメチルシロキシエチルジメチコン 1.0
9.製造例1の架橋型有機ケイ素樹脂のデカメチルシクロペンタシロキサン溶液
(樹脂純分60%)(成分(C)) 5.0
10.パラメトキシケイ皮酸2-エチルヘキシル 7.0
11.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 2.5
12.ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジン
1.5
13.テアニン※11(成分(B)) 0.5
14.トレオニン※13(成分(B)) 1.0
15.メタクリル酸メチルクロスポリマー(平均粒子径30μm)※21
(成分(D)) 1.0
16.トリフルオロプロピルジメチルトリメチルシロキシケイ酸 5.0
17.(ジメチコン/ビニルジメチコン)クロスポリマー※27(成分(D))
2.0
18.トリプロピレングリコール 3.0
19.精製水 残量
(製造方法)
A.成分(1)~(6)をローラーミルにて均一に混合分散した。
B:Aと成分(7)~(17)をホモミキサーにて混合し、均一に分散させた。
C:成分(18)、(19)を混合し、Bに添加し、ホモミキサーを用いて常温で乳化し、原液を得た。
D:Cで得られた原液9gをアルミ製耐圧容器に充填した後バルブを固着し、バルブを通じてLPG0.15を10gおよびジメチルエーテルを、2gを耐圧容器に充填し、エアゾール型ファンデーションを得た。
下記に示す組成及び製造方法で、油中水型乳化BBクリームを調製した。
(組成) (%)
(1)イソドデカン 15.0
(2)ジメチルポリシロキサン(25℃動粘度 2cS) 10.0
(3)ラウリルPEG-9ポリジメチルシロキシエチルジメチコン*40
0.8
(4)PEG-9ポリジメチルシロキシエチルジメチコン*41 0.4
(5)セスキイソステアリン酸ソルビタン 0.6
(6)ジエチルヘキサン酸ネオペンチルグリコール 10.0
(7)2-(4-ジエチルアミノ-2-ヒドロキシベンゾイル)
安息香酸へキシルエステル 2.0
(8)球状セルロース粉末(平均粒子径30μm)(成分(D))*42
3.0
(9)製造例4の架橋型有機ケイ素樹脂のイソドデカン溶液
(樹脂純分60%)(成分(C)) 10.0
(10)ジメチルポリシロキサン10%トリエトキシカプリリルシラン
3%処理酸化亜鉛(平均粒子径25nm)*62(成分(A)) 9.0
(11)ジメチルポリシロキサン2%処理黒色酸化鉄 0.3
(12)ジメチルポリシロキサン2%処理黄色酸化鉄 1.8
(13)ジメチルポリシロキサン2%処理ベンガラ 0.6
(14)ジメチルポリシロキサン2%処理タルク 1.0
(15)ジメチルジステアリルアンモニウムヘクトライト 1.5
(16)ベンジルジメチルステアリルアンモニウムヘクトライト 0.6
(17)セリン※12(成分(B)) 0.5
(18)精製水 残量
(19)エタノール 5.0
(20)ジプロピレングリコール 10.0
*62:SALT-MZ-500(13%)(三好化成社製)
(製造方法)
A:成分(3)~(7)を80℃に加温して均一に混合溶解した。
B:成分(10)~(16)をAに添加し、ロールミルにて均一に混合分散した。
C:成分(17)~(20)を均一に混合した。
D:Bに成分(1)、(2)、(8)、(9)を加えて分散し、Cを加え、ディスパーミキサーで2000rpm、室温で5分間乳化した。
E:Dを容器に充填し、油中水型乳化BBクリームを得た。
Claims (9)
- 次の成分(A)~(D):
(A)微粒子金属酸化物、ハイドロキシアパタイトならびに金属酸化物およびハイドロキシアパタイトを含む複合粉体からなる群から選択される少なくとも1種
(B)アミノ酸およびアミノ酸塩からなる群から選択される少なくとも1種
(C)下記平均組成式(1)で表される架橋型有機ケイ素樹脂
[式中、R1は、互いに独立に、炭素数1~30の、脂肪族不飽和結合を有しない、置換又は非置換の1価炭化水素基であり、R2は、互いに独立に、ポリオキシアルキレン含有基、ポリグリセリン含有基、又はR1の選択肢から選ばれる基であり、各R2 3SiO1/2単位にある少なくとも1のR2はポリオキシアルキレン含有基又はポリグリセリン含有基であり、R3は、互いに独立に、オルガノポリシロキサン含有基、又はR1の選択肢から選ばれる基であり、各R3 3SiO1/2単位にある少なくとも1のR3はオルガノポリシロキサン含有基であり、Xは、下記一般式(2)で表される2価の基であり、この際、(R1 3-p(X1/2)pSiO1/2)は複数の異なる構造単位であってもよく、任意的にR2、R3、及びXの一部は水酸基であってもよく、
(式中、R4は、互いに独立に、置換又は非置換の、炭素数1~30の脂肪族不飽和結合を有しない1価炭化水素基であり、eは0≦e≦500、kは0≦k≦5の整数である)
a1、a2、a3、a4、b、c、及びdは、0<a1≦400、0≦a2≦200、0≦a3≦400、0<a4≦10、0≦b≦320、0≦c≦320、0<d≦1,000、0.5≦(a1+a2+a3+a4)/d≦1.5を満たす数であり、pは1である]
(D)平均粒子径5~50μmの球状粉体
を含有し、
前記成分(A)の化粧料中の含有量が3質量%以上である、油中水型乳化化粧料。 - 前記成分(A)が、酸化亜鉛、ハイドロキシアパタイトならびに金属酸化物およびハイドロキシアパタイトを含む複合粉体からなる群から選択される少なくとも1種を含む、請求項1に記載の油中水型乳化化粧料。
- 前記成分(B)が、水酸基を有するアミノ酸(塩)およびアミド結合を有するアミノ酸(塩)からなる群から選択される少なくとも1種である、請求項1または2に記載の油中水型乳化化粧料。
- 前記成分(C)の重量平均分子量が1,000~1,000,000である、請求項1または2に記載の油中水型乳化化粧料。
- 前記成分(D)がシリコーン系樹脂粉体、ウレタン、ナイロン、酢酸セルロース、セルロース、デンプン、ポリ乳酸、アクリル系樹脂粉体及びシリカからなる群から選択される少なくとも1種である、請求項1または2に記載の油中水型乳化化粧料。
- 前記成分(B)の化粧料中の含有量が、0.1~1質量%である、請求項1または2に記載の油中水型乳化化粧料。
- 前記成分(C)の化粧料中の含有量が、0.1~20質量%である、請求項1または2に記載の油中水型乳化化粧料。
- 前記成分(D)の化粧料中の含有量が、0.1~20質量%である、請求項1または2に記載の油中水型乳化化粧料。
- 粘度が、30℃において、10,000mPa・s以下である、請求項1または2に記載の油中水型乳化化粧料。
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| WO2015072540A1 (ja) * | 2013-11-15 | 2015-05-21 | 株式会社コーセー | テアニンを用いた表面処理粉体及びそれを含有する化粧料 |
| JP2015117236A (ja) * | 2013-11-12 | 2015-06-25 | 株式会社コーセー | 油中水型乳化化粧料 |
| JP2020007486A (ja) * | 2018-07-11 | 2020-01-16 | 信越化学工業株式会社 | 架橋型有機ケイ素樹脂及びその製造方法、ならびに化粧料 |
| JP2020075870A (ja) * | 2018-11-05 | 2020-05-21 | 株式会社コーセー | 化粧料 |
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| EP3010598A4 (en) | 2013-06-19 | 2016-11-30 | Gilad Arwatz | ELECTROMECHANICAL SYSTEM FOR DELIVERING A COMPOSITION |
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| JP2015117236A (ja) * | 2013-11-12 | 2015-06-25 | 株式会社コーセー | 油中水型乳化化粧料 |
| WO2015072540A1 (ja) * | 2013-11-15 | 2015-05-21 | 株式会社コーセー | テアニンを用いた表面処理粉体及びそれを含有する化粧料 |
| JP2020007486A (ja) * | 2018-07-11 | 2020-01-16 | 信越化学工業株式会社 | 架橋型有機ケイ素樹脂及びその製造方法、ならびに化粧料 |
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