Cosmetic
The cosmetic formulation uses a carboxylic acid-modified silicone with an ester-bonded carboxy group to improve powder dispersibility and stability, addressing issues of aggregation and UV protection, and resulting in a uniform, skin-friendly finish with long-term stability.
Patent Information
- Application Number
- PCT/JP2024/043244
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-12-18
- Filing Date
- 2024-12-06
- Publication Date
- 2025-06-26
AI Technical Summary
Existing cosmetics face challenges with powder aggregation, leading to reduced color fidelity, uneven finish, and decreased ultraviolet protection when using titanium oxide or zinc oxide as UV scattering agents. Additionally, dispersants like carboxylic acid-modified silicones struggle to maintain dispersion stability with high powder content.
A cosmetic formulation incorporating a carboxylic acid-modified silicone, where the carboxy group is bonded to a silicon atom via an ester bond, enhancing its adsorption on powder surfaces and forming a strong adsorption layer to prevent particle aggregation. This improves powder dispersibility and stability, while also enhancing skin affinity and elongation.
The cosmetic achieves improved dispersibility and stability of powders, resulting in a uniform finish, reduced resistance during application, and sustained ultraviolet protection, along with enhanced skin compatibility and long-term stability.
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Abstract
Description
Cosmetics
[0001] The present invention relates to a cosmetic preparation.
[0002] Cosmetics containing powder include makeup, sunscreen, concealer, makeup base, etc. It is known that agglomeration of powder can cause the color to become dull and the finish to be less beautiful, the agglomeration can make the skin feel resistant, and in the case of UV scattering agents such as titanium oxide and zinc oxide, it can reduce the UV protection effect.
[0003] On the other hand, oils blended into cosmetics are selected depending on the purpose, including hydrocarbon oils, higher fatty acids, higher alcohols, esters, polar oils such as organic UV absorbers, and silicone oils. Silicone oils, which are characterized by their light feel, are particularly popular. Accordingly, numerous technologies have been developed for powder dispersants using modified silicones that are compatible with silicone oils. For example, a method using polyether-modified silicone as a dispersant (Patent Document 1) and a method using polyglycerin-modified silicone (Patent Document 2) have been proposed. These oils are often used in combination, but because they differ in molecular weight and molecular polarity, the compatibility, feel, and other characteristics of the oils used in combination must be carefully considered before they are used in cosmetics. Therefore, in order to improve compatibility with oils other than silicones, silicone compounds have been proposed that combine a long-chain alkyl group with a polyoxyalkylene group (Patent Document 3), a silicone compound that combines a long-chain alkyl group with a polyhydric alcohol (Patent Document 4), and other silicone compounds that combine a long-chain alkyl group, a glycerin group, and a branched-chain silicone group (Patent Document 5). However, polyoxyalkylene groups, polyhydric alcohols, and glycerin groups are highly hydrophilic and also act as surfactants, so when used in emulsified cosmetics, they may reduce dispersion stability and emulsion stability depending on the combination with other surfactants.
[0004] Furthermore, carboxylic acid-modified silicone compounds (Patent Document 6) and carboxylic acid-modified silicone compounds with a molecular weight of 800 or less (Patent Document 7) have been proposed. Carboxylic acids have weak emulsifying properties and good adsorption stability to powders, making them excellent dispersants. However, with the carboxylic acid-modified silicones of the prior art, when a high amount of powder is incorporated, the cohesive force between the powders cannot be suppressed, resulting in a high viscosity of the dispersion. Dispersants suppress powder re-agglomeration by adsorbing to the powder surface and forming a strong adsorption layer, so it is important that they have an organic group that allows for strong adsorption, and dispersants with even better dispersion stability are desired.
[0005] Japanese Patent Laid-Open No. 10-167946 Japanese Patent Laid-Open No. 10-316536 Japanese Patent Laid-Open No. 61-090732 Japanese Patent Laid-Open No. 2002-179798 International Publication No. 2022-172816 Japanese Patent Laid-Open No. 2002-080771 Japanese Patent Laid-Open No. 2013-177370
[0006] An object of the present invention is to provide a cosmetic preparation containing a carboxylic acid-modified silicone that has excellent powder dispersibility and dispersion stability, good spreadability and compatibility with the skin, and excellent stability over time.
[0007]
[0005] As a result of extensive research to achieve the above object, the present inventors discovered that a carboxylic acid-modified silicone in which a carboxyl group is bonded to a silicon atom via an ester bond is easily adsorbed to the surface of powder particles, forming a strong adsorption layer that inhibits aggregation of powder particles and provides excellent powder dispersibility and dispersion stability. They also discovered that by including this, it is possible to provide a cosmetic preparation that spreads well, blends well with the skin, and is stable over time, which led to the present invention.
[0008] Therefore, the present invention provides the following cosmetic preparation: 1. (A) 0.1 to 10 mass% of a carboxylic acid-modified silicone having a weight-average molecular weight of 1,000 to 5,000 and represented by the following formula (1): [In the formula, R 1 are independently an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 15 carbon atoms, an aralkyl group having 7 to 15 carbon atoms, and -Q-O-R 4 (Q is an alkylene group having 2 to 4 carbon atoms, R 4is an alkyl group having 3 to 30 carbon atoms), R 2 are independently a carboxylic acid group represented by the following formula (2): (wherein X represents a hydrogen atom or a monovalent cation, n represents 2 to 4, m represents 2 to 4, L represents 0 to 20, and p represents 2 to 6.) R 3 is expressed by the following formula (3) or (4): (In the formula, R 1 are independently the same as above. h is 0 to 5, i is 0 to 80, and j is 0 to 3. a is a group represented by the formula: a is 0 to 20, b is 0 to 5, c is 0 to 3, d is 0 or more, e is 0 or more, and f and g are numbers that satisfy f+g=2+d+e×2, provided that b and g are not 0 at the same time.] A cosmetic comprising: (B) an oil agent: 1 to 90% by mass; and (C) a powder: 2 to 95% by mass. 2. The cosmetic according to 1, further comprising: (D) an organic ultraviolet absorber in an amount of 0.1 to 30% by mass. 3. The cosmetic according to 1 or 2, wherein the oil agent (B) is one or more selected from silicone oil, hydrocarbon oil, ester oil, glyceride oil, natural animal and vegetable oils and fats, semi-synthetic oils and fats, and higher alcohols. 4. 4. The cosmetic preparation according to any one of 1 to 3, wherein the powder (C) is one or more selected from titanium oxide, zinc oxide, and colored pigments. 5. The cosmetic preparation according to any one of 1 to 4, further comprising (E) a surfactant and water, and in the form of an emulsion.
[0009] According to the present invention, by including a carboxylic acid-modified silicone that has excellent powder dispersibility and dispersion stability, it is possible to obtain a cosmetic that spreads well, blends well with the skin, and has excellent stability over time.
[0010] The present invention will be described in detail below. In the present invention, the names of ingredients may be written as cosmetic names or International Nomenclature of Cosmetic Ingredients (INCI). When the cosmetic name corresponds to the INCI, the cosmetic name or English name may be omitted.
[0011] [(A) Carboxylic Acid-Modified Silicone] (A) Carboxylic acid-modified silicone is represented by the following formula (1), and can be used alone or in combination of two or more. [In the formula, R 1 are independently an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 15 carbon atoms, an aralkyl group having 7 to 15 carbon atoms, and —O—R 4 (Q is an alkylene group having 2 to 4 carbon atoms, R 4 is an alkyl group having 3 to 30 carbon atoms), R 2 are independently a carboxylic acid group represented by the following formula (2): (wherein X represents a hydrogen atom or a monovalent cation, n represents 2 to 4, m represents 2 to 4, L represents 0 to 20, and p represents 2 to 6.) R 3 is expressed by the following formula (3) or (4): (In the formula, R 1 are independently the same as above. h is 0 to 5, i is 0 to 80, and j is 0 to 3. a is 0 to 20, b is 0 to 5, c is 0 to 3, d is 0 or more, e is 0 or more, and f and g are numbers that satisfy the equation f+g=2+d+e×2, with the proviso that b and g are not 0 at the same time.]
[0012] R 1 are independently an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 15 carbon atoms, an aralkyl group having 7 to 15 carbon atoms, and -Q-O-R 4 (Q is an alkylene group having 2 to 4 carbon atoms, R 4 is an alkyl group having 3 to 30 carbon atoms). Specifically, examples thereof include linear or branched alkyl groups such as methyl, ethyl, propyl, butyl, hexyl, octyl, decyl, dodecyl, tetradecyl, and hexadecyl groups; cycloalkyl groups such as cyclopentyl and cyclohexyl groups; aryl groups such as phenyl and tolyl groups; aralkyl groups such as benzyl groups; —C2H4OC 11 C 23 , -C2H4OC 12 C 25 , -C3H6OC 16 C 33 , -C3H6OC 18 C 37 , -C3H4OC 22 C 45Among these, methyl groups are preferred, but when the oil used contains polar oils such as hydrocarbon oils, higher fatty acids, higher alcohols, esters, and ultraviolet absorbers, dodecyl groups, hexadecyl groups, and -C3H6OC 18 C 37 is also preferred.
[0013] R 2 are independently a carboxy group connected via an ester bond, represented by the following formula (2): (In the formula, X represents a hydrogen atom or a monovalent cation, n represents 2 to 4, m represents 2 to 4, L represents 0 to 20, and p represents 2 to 6.)
[0014] X is a hydrogen atom or a monovalent cation, and specific examples of the monovalent cation include alkali metal ions such as lithium, sodium, and potassium, and salts such as ammonium and alkylamine. Preferably, it is a hydrogen atom, sodium, or potassium. It is a monovalent organic group containing a carboxyl group, where n is 2 to 4, m is 2 to 4, L is 0 to 20, and p is 2 to 6. The ester bond facilitates adsorption to the surface of powder particles, forming a strong adsorption layer, which inhibits aggregation between powder particles and improves the dispersibility and dispersion stability of the powder. Specific examples include the following formulas (5) to (7).
[0015] R 3 is expressed by the following formula (3) or (4): (In the formula, R 1 are independently the same as above. h is 0 to 5, i is 0 to 80, and j is 0 to 3.
[0016] R 1 are independently the same as above. h is 0 to 5, and when obtained from an addition reaction between a vinylsiloxy group and a hydrosilyl group, h is 0. i is 0 to 80, and preferably 1 to 10. i is 0 to 80, and preferably 1 to 10. If i exceeds 80, the adsorption of the dispersant to the powder becomes poor, and dispersion stability deteriorates. j is 0 to 3, and preferably 0 or 1.
[0017] a is 0 to 20, b is 0 to 5, c is 0 to 3, d is 0 or more, e is 0 or more, and f and g are numbers that satisfy the equation f + g = 2 + d + e × 2. However, b and g cannot be 0 at the same time. If a exceeds 20 or c exceeds 3, the adsorption of the dispersant to the powder will be poor, and dispersibility stability will deteriorate. Furthermore, if b exceeds 5, the polarity will be high and the viscosity of the dispersant itself will increase, thereby worsening dispersibility stability. Since compatibility differs depending on the type of oil used, the preferred values for these will vary, but it is preferable that a is 0 to 10, b is 1 to 3, c is 0 to 3, d is 0 to 3, e is 0 to 3, and f + g is 2 to 11.
[0018] The weight-average molecular weight of (A) carboxylic acid-modified silicone is 1,000 to 5,000, preferably 1,000 to 3,000, in view of the balance between the viscosity of the dispersant itself and compatibility with the oil. If the weight-average molecular weight is less than 1,000, dispersion stability deteriorates over time. In the present invention, the molecular weight refers to the weight-average molecular weight value determined by GPC (gel permeation chromatography) analysis using polystyrene as a standard substance under the following conditions: [Measurement conditions] Developing solvent: tetrahydrofuran (THF) Flow rate: 0.6 mL / min Detector: differential refractive index detector (RI) Column: TSK Guard column Super H-H TSKgel Super HM-N (6.0 mm I.D. × 15 cm × 1) TSKgel Super H2500 (6.0 mm I.D. × 15 cm × 1) (all manufactured by Tosoh Corporation) Column temperature: 40°C Sample injection volume: 50 μL (THF solution with a concentration of 0.3% by mass)
[0019] The blending amount of component (A) in the cosmetic is 0.1 to 10% by mass, preferably 0.5 to 5% by mass. If it is less than 0.1% by mass, the dispersion stability of the powder will deteriorate, and if it is more than 10% by mass, the dispersant itself will feel sticky.
[0020] (A) Carboxylic acid-modified silicone can be prepared according to a conventional method. The carboxylic acid-modified silicone of the present invention can be produced by known techniques. For example, it can be obtained by subjecting a hydrosilyl group-containing organopolysiloxane to an addition reaction with a terminally unsaturated group-containing hydroxyl group compound, followed by a ring-opening reaction with succinic anhydride. More specifically, a production method can be mentioned that includes a step of reacting an organohydrogenpolysiloxane with a glycol having an unsaturated group in the presence of an addition reaction catalyst to obtain a hydroxyl group-containing dimethylpolysiloxane, and a step of subjecting this to a ring-opening reaction with an acid anhydride compound such as succinic anhydride.
[0021] [(B) Oil] Examples of the oil (B) include silicone oil, hydrocarbon oil, ester oil, glyceride oil, natural animal and vegetable oils and fats, semi-synthetic oils and fats, higher alcohols, etc., and are not particularly limited as long as they are typically used in cosmetics, pharmaceuticals, etc. These can be used alone or in combination of two or more.
[0022] Examples of silicone oils include cyclotetrasiloxane (INCI), cyclopentasiloxane (INCI), cyclohexasiloxane (INCI), dimethicone (INCI), methyl trimethicone (INCI), tetraquistrimethylsiloxysilane, caprylyl methicone (INCI), phenyl trimethicone (INCI), diphenylsiloxyphenyl trimethicone (INCI), diphenyl dimethicone (INCI), trifluoromethyl alkyl (C1-4) dimethicone, amodimethicone (INCI), aminopropyl dimethicone (INCI), and PCA dimethicone (INCI).
[0023] Examples of hydrocarbon oils include linear, branched, and volatile hydrocarbon oils, and specific examples thereof include isoparaffins such as olefin oligomers (INCI) and (C13,14) isoparaffin (INCI), alkanes such as isododecane (INCI), undecane (INCI), dodecane (INCI), isohexadecane (INCI), hydrogenated polyisobutene (INCI), squalane (INCI), mineral oil (INCI), palm alkanes (INCI), and (C13-15) alkanes (INCI).
[0024] Examples of ester oils include alkyl glycol monoisostearates such as diisobutyl adipate (INCI: Diisobutyl Adipate), dihexyldecyl adipate (display name), diheptylundecyl adipate (INCI: Diheptylundecyl Adipate), and isostearyl isostearate (INCI: Isostearyl Isostearate), isocetyl isostearate (INCI: Isocetyl Isostearate), trimethylolpropane triisostearate (INCI: Trimethylolpropane Triisostearate), glycol diethylhexanoate (INCI: Glycol Diethylhexanoate), and cetyl ethylhexanoate (INCI: Cetyl octyldodecyl esters such as trimethylolpropane triethylhexanoate (INCI: Trimethylolpropane Triethylhexanoate), pentaerythrityl tetraethylhexanoate (INCI: Pentaerythrityl Tetraethylhexanoate), octyldodecyl stearoyloxystearate (INCI: Octyldodecyl Stearoyl Stearate), oleyl oleate (INCI: Oleate), octyldodecyl oleate (INCI: Octyldodecyl Oleate), decyl oleate (INCI: Decyl Oleate), neopentyl glycol dioctanoate (INCI: Neopentyl Glycol Diethylhexanoate), neopentyl glycol dicaprate (INCI: Neopentyl Glycol Dicaprate), diisostearyl malate (INCI: Diisostearyl Malate), triethyl citrate (INCI: Triethyl Citrate), diethylhexyl succinate (INCI: Diethylhexyl Succinate), amyl acetate (INCI: Amyl Acetate), ethyl acetate (INCI: Ethyl Acetate), butyl acetate (INCI: Butyl Acetate),Isocetyl stearate (INCI: Isocetyl stearate), butyl stearate (INCI: Butyl stearate), diisopropyl sebacate (INCI: Diisopropyl sebacate), diethylhexyl sebacate (INCI: Diethylhexyl sebacate), cetyl lactate (INCI: Cetyl lactate), myristyl lactate (INCI: Myristyl lactate), isononyl isononanoate (INCI: Isononyl isononanoate), isotridecyl isononanoate (INCI: Isotridecyl isononanoate), isopropyl palmitate (INCI: Isopropyl palmitate) palmitate esters such as ethylhexyl palmitate (INCI: Ethylhexyl Isopalmitate) and hexyldecyl palmitate (INCI: Isocetyl Palmitate, Hexyldecyl Palmitate); cholesteryl hydroxystearate (INCI: Cholesteryl Hydroxystearate); isopropyl myristate (INCI: Isopropyl Myristate); octyldodecyl myristate (INCI: Octyldodecyl Myristate); myristyl myristate (INCI: Myristyl Myristate), ethylhexyl laurate (INCI: Ethylhexyl Laurate), hexyl laurate (INCI: Hexyl Laurate), dioctyldodecyl lauroyl glutamate (INCI: Dioctyldodecyl Lauroyl Glutamate), and isopropyl lauroyl sarcosinate (INCI: Isopropyl Lauroyl Sarcosinate).
[0025] Examples of glyceride oils include triethylhexanoin (INCI), tri(caprylic / capric)glyceryl (INCI: Caprylic / Capric Triglyceride), cocoglyceryl (INCI), (caprylic / capric / succinic) triglyceride (INCI: Caprylic / Capric / Succinic Triglyceride), and (caprylic / capric)glycerides (INCI).
[0026] Examples of natural animal and vegetable oils and semi-synthetic oils include avocado oil (INCI: Persea Gratissima (Avocado) Oil), linseed oil (INCI: Linum Usitatissimum (Linseed) Seed Oil), almond oil (INCI: Prunus Amygdalus Dulcis (Sweet Almond) Oil), ivotaro, perilla oil (labeled name), perilla oil, olive oil (INCI: Olea Europaea (Olive) Fruit Oil), cocoa butter, kapok wax, and American grass oil (INCI: Torreya California (California) Fruit Oil). Nutmeg Oil), Cymbopogon Nardus (Citronella) Oil, Torreya Seed Oil (INCI: Torreya Nucifera Seed Oil), Carnauba Wax (INCI: Copernicia Cerifera (Carnauba) Wax), Cod Liver Oil, Candelilla Wax (INCI: Euphorbia Cerifera (Candelilla) Wax), Refined Candelilla Wax, Beef Tallow, Beef Foot Fat, Beef Bone Fat, Hydrogenated Beef Tallow, Kyounin Oil (INCI: Kyounin Yu), Sperm Wax, Hydrogenated Oil, Wheat Germ Oil (INCI: Triticum Vulgare (Wheat) Sesame oil (INCI: Sesamum indicum (Sesame) Seed Oil), rice germ oil (INCI: Oryza sativa (Rice) Germ Oil), rice bran oil (INCI: Oryza sativa (Rice) Bran Oil), sugarcane wax (INCI: Saccharum officinarum (Sugarcane) Wax), camellia oil (INCI: Camellia kissii Seed Oil), safflower oil (INCI: Carthamus tinctorius (Safflower) Seed Oil), shea butter (INCI: Butyrospermum Parkii (Shea Butter)), Chinese ginger oil, cinnamon oil, jojoba wax, squalane (INCI), squalene (INCI), shellac wax, turtle oil (INCI: Turtle Oil),Soybean oil (INCI: Glycine Soja (Soybean) Oil), tea seed oil (INCI: Camellia Sinensis Seed Oil), camellia oil (INCI: Camellia Japonica Seed) Oil), Evening Primrose Oil (INCI), Zea Mays (Corn) Germ Oil), lard (INCI:Lard), rapeseed oil, Japanese tung oil, rice bran wax (INCI:Oryza Sativa (Rice) Bran Wax), germ oil, horse tallow (INCI:Horse) Fat), Persic Oil (Label name), Palm Oil (INCI: Elaeis Guineensis (Palm) Oil), Palm Kernel Oil (INCI: Elaeis Guineensis (Palm) Kernel Oil), Castor Oil (INCI: Ricinus Communis (Castor) Seed Oil), Hydrogenated Castor Oil, Castor Fatty Acid Methyl Esters, Sunflower Oil (INCI: Helianthus Annuus (Sunflower) Seed Oil), Grape Seed Oil (INCI: Vitis Vinifera (Grape) Seed Oil), Bayberry Wax, Jojoba Seed Oil (INCI: Simmondsia Chinensis) (Jojoba) Seed Oil), Macadamia Ternifolia Seed Oil (INCI: Macadamia Ternifolia Seed Oil), Macadamia Nut Oil (INCI: Macadamia Integrifolia Seed Oil), Beeswax (INCI: Beeswax), Mink Oil, Meadowfoam Oil (INCI: Limnanthes Alba (Meadowfoam) Seed Oil), Cottonseed Oil (INCI: Gossypium Herbaceum (Cotton) Seed Oil), Cotton Wax, Japan Wax (INCI: Rhus Succedanea Fruit) Wax), Japan Wax Kernel Oil, Montan Wax (INCI: Montan Wax), Coconut Oil (INCI: Cocos Nucifera (Coconut) Oil), Hardened Coconut Oil, Tri-Coconut Fatty Acid Glycerides, Sheep Tallow,Examples of such oils include peanut oil (INCI: Arachis Hypogaea (Peanut) Oil), lanolin (INCI: Lanolin), liquid lanolin (INCI: Lanolin Oil), reduced lanolin, lanolin alcohol (INCI), hard lanolin, acetated lanolin, acetated lanolin alcohol (INCI: Acetylated Lanolin Alcohol), isopropyl lanolinate (INCI: Isopropyl Lanolate), POE lanolin alcohol ether, POE lanolin alcohol acetate, polyethylene glycol lanolinate, POE hydrogenated lanolin alcohol ether, and egg yolk oil (INCI: Egg Oil), where POE stands for polyoxyethylene.
[0027] Examples of higher alcohols include lauryl alcohol (INCI), myristyl alcohol (INCI), palmityl alcohol, stearyl alcohol (INCI), behenyl alcohol (INCI), hexadecyl alcohol, oleyl alcohol (INCI), isostearyl alcohol (INCI), hexyldodecanol, octyldodecanol (INCI), cetostearyl alcohol, 2-decyltetradecynol, cholesterol (INCI), phytosterols (INCI), POE cholesterol ether, monostearyl glycerin ether (batyl alcohol), and monooleyl glyceryl ether (selachyl alcohol).
[0028] The blending amount of (B) oil varies depending on the formulation, but is 1 to 90% by mass, preferably 5 to 70% by mass, and can also be 20 to 50% by mass in the cosmetic.
[0029] [(C) Powder] As the powder (C), any powder used in ordinary cosmetics can be used, regardless of its shape (spherical, acicular, plate-like, etc.), particle size (aerosol, fine particles, pigment-grade, etc.), or particle structure (porous, non-porous, etc.), and one or more types can be used. Examples of powders include inorganic powders, organic powders, surfactant metal salt powders, colored pigments, pearl pigments, metal powder pigments, tar dyes, and natural dyes.
[0030] Examples of inorganic powders include titanium oxide (INCI: Tiatanium Dioxide), zirconium oxide (INCI: Zirconium Dioxide), zinc oxide (INCI: Zinc Oxide), cerium oxide (INCI: Cerium Oxide), magnesium oxide (Magnesium Oxide), barium sulfate (Barium Sulfate), calcium sulfate (Calcium Sulfate), magnesium sulfate (Magnesium Sulfate), calcium carbonate (Calcium Carbonate), and magnesium carbonate (Magnesium Carbonate). Carbonate), talc (INCI: Talc), mica (INCI: Mica), kaolin (INCI: Kaolin), sericite, titanium mica (Titanate Mica), silica (INCI: Silica), hydrated silica (INCI: Hydrated Silica), aluminum silicate (INCI: Aluminum Silicate), magnesium silicate (INCI: Magnesium Silicate), magnesium aluminum silicate (INCI: Magnesium Aluminum Silicate), calcium silicate (INCI: Calcium silicate), hydroxyapatite (INCI: Hydroxyapatite), bentonite (INCI: Bentonaite), montmorillonite (INCI: Montmorillonate), hectorite (INCI: Hectorite), zeolite (INCI: Zeolite), alumina (INCI: Alumina), aluminum hydroxide, boron nitride (INCI: Boron Nitride), etc. Among these, one or more selected from titanium oxide, zinc oxide, and colored pigments are preferred.
[0031] Examples of organic powders include polyamide, polyester, polyethylene (INCI: Polyethylene), polypropylene (INCI: Polypropylene), polystyrene (INCI: Polystyrene), polyurethane, polymethyl methacrylate (INCI: Polymethyl Methylacrylate), cellulose (INCI: Cellulose), silk, nylon, and silicone (INCI: Vinyl Dimethicone / Methicone Crosspolymer, Polymethylsilsesquioxane, Vinyl Dimethicone / Methicone Silsesquioxane). Crosspolymer, Diphenyl Dimethicone / Vinyl Diphenyl Dimethicone / Silsesquioxane Crosspolymer, Polysilicone-1 Crosspolymer, Polysilicone-22), etc.
[0032] Examples of surfactant metal salt powders (metal soaps) include zinc stearate (INCI: Zinc Stearate), aluminum stearate, calcium stearate, magnesium stearate, zinc myristate (INCI: Zinc Myristate), and magnesium myristate.
[0033] Examples of colored pigments include inorganic red pigments such as iron oxide (INCI: Iron Oxide), iron hydroxide, and iron titanate, inorganic brown pigments such as γ-iron oxide, inorganic yellow pigments such as yellow iron oxide and yellow ocher (INCI: Yellow Ochre), inorganic black pigments such as black iron oxide and carbon black (INCI: Carbon Black), inorganic purple pigments such as manganese violet (INCI: Manganese Violet), chromium hydroxide (INCI: Chromium Hydroxide Green), chromium oxide (INCI: Chromium Oxide Green), and cobalt titanate (INCI: Cobalt Titanium). Examples of suitable pigments include inorganic green pigments such as Iron Oxide, inorganic blue pigments such as Iron Blue and Ultramarine, and synthetic resin powders obtained by combining these powders.
[0034] Examples of pearl pigments include titanium oxide-coated mica, titanium oxide-coated mica, bismuth oxychloride, titanium oxide-coated bismuth oxychloride, titanium oxide-coated talc, fish scale foil, and titanium oxide-coated colored mica.
[0035] Examples of metal powder pigments include aluminum powder and copper powder (INCI: Copper Powder). Tar dyes include Red No. 3 (Erythrosine), Red No. 104 (Phloxine B), Red No. 106 (Acid red), Red No. 201 (Lithol rubine B), Red No. 202 (Lithol rubine BCA), Red No. 204 (Lake red CBA), Red No. 205 (Lithol red), Red No. 220 (Deep maroon), Red No. 226 (Helindone pink CN), Red No. 227 (Fast acid magenta), Red No. 228 (Parmatone red), Red No. 230 (Eosine YS), Red No. 401 (Violamine R), and Red No. 505 (Oil red). XO), Yellow No. 4 (Tartrazin), Yellow No. 5 (Sunset yellow FCF), Yellow No. 202 (Uranine K), Yellow No. 203 (Quinolin yellow WS), Yellow No. 204 (Quinolin yellow SS), yellow No. 401 (Hanza yellow), blue No. 1 (Brilliant blue FCF), blue No. 2 (Indigo carmine), blue No. 201 (Indigo), blue No. 404 (Phtalocyanine blue), Green No. 3 (Fast green FCF), Green No. 201 (Alizanine cyanine green F), Green No. 204 (Pyranine Examples of natural dyes include Green No. 205 (Light green SF yellowwish), Orange No. 201 (Dibromofluorescein), Orange No. 203 (Permanent orange), Orange No. 204 (Benzidine orange G), Orange No. 206 (Diiodofluorescein), and Orange No. 207 (Erlthrosine yellowwish NA). Examples of natural dyes include cochineal, laccaic acid (INCI: Laccaic Acid), carthamin, Brazilin, and crocin.Among these, one or more selected from titanium oxide, zinc oxide and colored pigments are preferred.
[0036] These powders may be composites of powders or powders treated with general oils, silicone oils, fluorine compounds, surfactants, etc., or may be treated with a hydrolyzable silyl group or an alkyl group having a hydrogen atom directly bonded to the silicon atom, a linear and / or branched organopolysiloxane having a hydrolyzable silyl group or a hydrogen atom directly bonded to the silicon atom, a linear and / or branched organopolysiloxane having a hydrolyzable silyl group or a hydrogen atom directly bonded to the silicon atom and co-modified with a long-chain alkyl, a linear and / or branched organopolysiloxane having a hydrolyzable silyl group or a hydrogen atom directly bonded to the silicon atom and co-modified with a polyoxyalkylene, an acrylic-silicone copolymer having a hydrolyzable silyl group or a hydrogen atom directly bonded to the silicon atom, etc. Furthermore, from the viewpoint of ease of handling, it is preferable to incorporate the powder in any of the following forms: a dispersed liquid, a paste, or a solid.
[0037] The blending amount of (C) powder varies depending on the formulation, but is 2 to 95% by mass, preferably 5 to 70% by mass, of the cosmetic.
[0038] [(D) Organic UV Absorber] In addition to the components (A) to (C), the cosmetic of the present invention can contain an organic UV absorber (D) as an optional component. As the organic UV absorber (D), any organic UV absorber, whether solid, semi-solid, or liquid, can be used as long as it is one that is commonly used in cosmetics, and one type can be used alone or two or more types can be used in combination.
[0039] Specifically, homosalate (INCI), octocrylene (INCI), t-butyl methoxydibenzoylmethane (INCI: Butyl Methoxydibenzoylmethane), ethylhexyl salicylate (INCI: Ethylhexyl Salicylate), diethylamino hydroxybenzoyl hexyl benzoate (INCI: Diethylamino Hydroxybenzoyl Hexyl Benzoate), Benzoate), Oxybenzone-6 (INCI: Benzophenone-6), Oxybenzone-9 (INCI: Benzophenone-9), Oxybenzone-1 (INCI: Benzophenone-1), Polysilicone-15 (INCI), Dimethoxybenzylidene dioxoimidazolidine octyl propionate (INCI: Ethylhexyl Dimethoxybenzylidene Dioxoimidazolidine Propionate), Oxybenzone-2 (INCI: Benzophenone-2), Terephthalylidene Dicamphor Sulfonic Acid (INCI: Terephthalylidene Dicamphor Sulfonic Acid) Acid), Ethylhexyl Triazone (INCI), Bis(trimethylsiloxy)silylisopentyl Methyl Trimethoxycinnamate (INCI: Isopentyl Trimethoxycinnamate Trisiloxane), Drometrizole Trisiloxane (INCI), Ethylhexyl Dimethyl PABA (INCI: Ethylhexyl Dimethyl PABA), Isopropyl Paramethoxycinnamate (INCI: Isopropyl Methoxycinnamate), Ethylhexyl Methoxycinnamate (INCI: Ethylhexyl Methoxycinnamate), Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (INCI: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine), Oxybenzone-3 (INCI: Benzophenone-3), Oxybenzone-4 (INCI: Benzophenone-4), Oxybenzone-5 (INCI: Benzophenone-5),Phenylbenzimidazole Sulfonic Acid (INCI: Phenylbenzimidazole Sulfonic Acid), Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (INCI: Methylene Bis-Benzotriazolyl Tetramethylbutylphenol), Glyceryl Ethylhexanoate Dimethoxycinnamate (INCI: Glyceryl Ethylhexanoate Dimethoxycinnamate), Glyceryl PABA (INCI: Glyceryl PABA), Methyl Diisopropylcinnamate (INCI: Diisopropyl Methyl Examples of such an absorbent include UVA absorbers (e.g., diethylaminohydroxybenzoylhexyl benzoate (INCI: Diethylamino Hydroxybenzoyl Hexyl Benzoate) and UVB absorbers (e.g., ethylhexyl methoxycinnamate (INCI: Ethylhexyl Methoxycinnamat)) and the like.
[0040] The amount of component (D) when blended varies depending on the formulation, but is preferably 0.1 to 30% by mass, and more preferably 1 to 15% by mass, of the cosmetic.
[0041] The cosmetic contains (E) a surfactant and water, and may be an emulsion. The type of emulsion is not particularly limited. When water is blended, the amount varies depending on the formulation, but is preferably 1 to 95% by mass, and more preferably 20 to 80% by mass, of the cosmetic.
[0042] [(E) Surfactant] Examples of surfactants include anionic, cationic, nonionic, and amphoteric surfactants, but there are no particular limitations, and any surfactant that is used in ordinary cosmetics can be used.
[0043] Examples of anionic surfactants include fatty acid soaps such as sodium stearate and triethanolamine palmitate, alkyl ether carboxylic acids and their salts, condensate salts of amino acids and fatty acids, alkanesulfonates, alkenesulfonates, sulfonates of fatty acid esters, sulfonates of fatty acid amides, formalin condensation sulfonates, alkyl sulfates, secondary higher alcohol sulfates, alkyl and allyl ether sulfates, sulfates of fatty acid esters, sulfates of fatty acid alkylolamides, sulfate salts of turmeric oil, alkyl phosphates, ether phosphates, alkyl allyl ether phosphates, amide phosphates, N-acyl lactates, N-acyl sarcosine salts, N-acyl amino acid surfactants, and the like; and examples of cationic surfactants include alkylamine salts, amine salts of polyamines and amino alcohol fatty acid derivatives, alkyl quaternary ammonium salts, aromatic quaternary ammonium salts, pyridium salts, and imidazolium salts.
[0044] Examples of nonionic surfactants include sorbitan fatty acid esters, glycerin fatty acid esters, polyglycerin fatty acid esters, propylene glycol fatty acid esters, polyethylene glycol fatty acid esters, sucrose fatty acid esters, methyl glucoside fatty acid esters, alkyl polyglucosides, polyoxyethylene alkyl ethers, polyoxypropylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitol fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyoxyethylene propylene glycol fatty acid esters, polyoxyethylene castor oil, poly Examples of the surfactant include oxyethylene hydrogenated castor oil, polyoxyethylene phytostanol ether, polyoxyethylene phytosterol ether, polyoxyethylene cholestanol ether, polyoxyethylene cholesteryl ether, linear or branched polyoxyalkylene-modified organopolysiloxane, linear or branched polyoxyalkylene-alkyl co-modified organopolysiloxane, linear or branched polyglycerin-modified organopolysiloxane, linear or branched polyglycerin-alkyl co-modified organopolysiloxane, alkanolamide, sugar ether, and sugar amide. Examples of the amphoteric surfactant include betaine, phosphatidylcholine, aminocarboxylate, imidazoline derivative, and amidoamine type.
[0045] Among these surfactants, preferred are linear or branched organopolysiloxanes having a polyoxyalkylene chain or a polyglycerin chain in the molecule, or linear or branched organopolysiloxanes further having a long-chain alkyl group having 6 to 20 carbon atoms. In these surfactants, the content of the hydrophilic polyoxyalkylene group or polyglycerin residue preferably accounts for 10 to 85 mass% of the molecule.
[0046] When a surfactant other than component (A) is blended, the amount thereof is preferably 0.1 to 20% by mass, and more preferably 0.2 to 10% by mass, of the cosmetic.
[0047] The cosmetic of the present invention can contain an appropriate amount of optional components other than the above-mentioned components, as long as the effects of the present invention are not impaired. Examples of optional components include the following. The following examples of optional components can be used alone or in combination of two or more, and are selected appropriately depending on the desired formulation and purpose.
[0048] Compounds Having an Alcoholic Hydroxyl Group in Their Molecular Structure Examples of compounds having an alcoholic hydroxyl group include lower alcohols such as ethanol (INCI: Alcohol) and isopropanol (INCI: Isopropyl Alcohol), sugar alcohols such as sorbitol (INCI) and maltose (INCI), sterols such as cholesterol (INCI), sitosterol (INCI: Beta-Sitosterol), phytosterol (INCI) and lanosterol (INCI), and polyhydric alcohols such as butylene glycol (INCI), propylene glycol (INCI), dibutylene glycol and pentylene glycol (INCI). When a compound having an alcoholic hydroxyl group in its molecular structure is blended, the amount is preferably in the range of 0.1 to 98% by mass in the cosmetic.
[0049] Water-soluble or water-swellable polymer compounds Examples of water-soluble or water-swellable polymer compounds include gum arabic (INCI: Acacia Senegal Gum), tragacanth gum (INCI: Astragalus Gummifer Gum), galactan, carob gum, guar gum (INCI: Cyamopsis Tetragonoloba (Guar) Gum), karaya gum (INCI: Sterculia Urens Gum), carrageenan (INCI: Chondrus crispus (Carrageenan)), pectin (INCI), agar (INCI: Agar), quince seed (INCI: Pyrus Cydonia) Seed), rice starch (INCI: Oryza Sativa (Rice) Starch), wheat starch (INCI: Triticum Vulgare (Wheat) Starch), potato starch (INCI: Solanum Tuberosum (Potato) Starch), corn starch, algae colloid, toranth gum (INCI: Astragalus Gummifer) Gum), locust bean gum, and other plant-based polymer compounds; xanthan gum (INCI), dextran (INCI), succinoglycan (INCI), pullulan (INCI), and other microbial polymer compounds; collagen (INCI), casein (INCI), albumin (INCI), and gelatin (INCI), and other animal-based polymer compounds; carboxymethyl starch Na (INCI: Sodium Carboxymethyl Starch), hydroxypropyl starch (INCI: Hydroxypropyl Starch), and other starch-based polymer compounds; methyl cellulose (INCI), ethyl cellulose (INCI), methylhydroxypropyl cellulose (INCI), carboxymethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose (INCI), nitrocellulose (INCI), sodium cellulose sulfate (INCI: Sodium Cellulose Sulfate), sodium carboxymethylcellulose, crystalline cellulose (INCI: Microcrystalline Cellulose), cellulose-based polymers such as cellulose powder,Alginic acid-based polymer compounds such as sodium alginate (INCI: Algin) and propylene glycol alginate (INCI: Propylene Glycol Alginate), vinyl-based polymer compounds such as polyvinyl methyl ether and carboxyvinyl polymer (INCI: Carbomer), polyoxyethylene-based polymer compounds, polyoxyethylene-polyoxypropylene copolymer-based polymer compounds, acrylic polymers such as sodium polyacrylate (INCI: Sodium Polyacrylate), polyethyl acrylate (INCI: Polyethylacrylate), polyacrylamide (INCI), and acryloyldimethyltaurate copolymer, polyethyleneimine, cationic polymers, and other synthetic water-soluble polymer compounds, bentonite (INCI), magnesium aluminum silicate (INCI: Magnesium Aluminum Silicate), Examples of water-soluble or water-swellable polymer compounds include inorganic water-soluble polymers such as silicate, montmorillonite (INCI), beidellite, nontronite, saponite, hectorite (INCI), and silicic anhydride. These water-soluble polymer compounds also include film-forming agents such as polyvinyl alcohol (INCI) and polyvinylpyrrolidone (INCI). When a water-soluble or water-swellable polymer compound is incorporated, its amount is preferably in the range of 0.1 to 25% by mass in the cosmetic.
[0050] Silicone Resin The silicone resin is preferably an acrylic silicone resin of an acrylic / silicone graft or block copolymer. It is also possible to use an acrylic silicone resin containing one or more moieties selected from the group consisting of a pyrrolidone moiety, a long-chain alkyl moiety, a polyoxyalkylene moiety, a fluoroalkyl moiety, and an anion moiety such as a carboxylic acid in the molecule.
[0051] Furthermore, this silicone resin is R3SiO 1 / 2 Units and SiO 4 / 2 Resin composed of units, RSiO 1 / 2 Units and RSiO 2 / 2 Units and SiO 4 / 2 Resin composed of units, RSiO 1 / 2 Units and RSiO 3 / 2Resin composed of units, RSiO 1 / 2 Units and RSiO 2 / 2 Units and RSiO 3 / 2 Resin composed of units, RSiO 1 / 2 Units: RSiO 2 / 2 Units: RSiO 3 / 2 Units and SiO 4 / 2 Preferably, the silicone network compound is a resin composed of units (where R represents a monovalent organic group). Alternatively, a silicone network compound containing one or more moieties selected from a pyrrolidone moiety, a long-chain alkyl moiety, a polyoxyalkylene moiety, a fluoroalkyl moiety, and an amino moiety in the molecule can also be used.
[0052] Furthermore, silicone resins such as silicone-modified pullulan and silicone-modified norbornene can also be used. When silicone resins are blended, the amount of the silicone resin is preferably 0.1 to 20% by mass, and more preferably 1 to 10% by mass, in the cosmetic.
[0053] Compositions comprising a crosslinked organopolysiloxane and an oil that is liquid at room temperature. The crosslinked organopolysiloxane preferably swells by absorbing a liquid oil that is equal to or greater than its own weight. Examples of the liquid oil include the above-mentioned liquid silicone oils, hydrocarbon oils, ester oils, natural animal and vegetable oils, semi-synthetic oils, and fluorine-based oils. For example, compositions having a kinematic viscosity of 0.65 to 100.0 mm at 25°C as measured using a Cannon-Fenske viscometer according to JIS Z 8803:2011 are suitable. 2Examples of suitable crosslinking agents include low-viscosity silicone oils (e.g., 1 / s), liquid paraffin, hydrocarbon oils such as squalane, isododecane, and isohexadecane, glyceride oils such as trioctanoin, ester oils such as isotridecyl isononanoate, N-acyl glutamate, and lauroyl sarcosinate, and natural animal and vegetable oils such as macadamia nut oil. The crosslinking agent for this crosslinked organopolysiloxane preferably has two or more vinyl reactive sites in the molecule and forms a crosslinked structure by reacting with hydrogen atoms directly bonded to silicon atoms. Examples of crosslinking agents having two or more vinyl reactive sites in the molecule include organopolysiloxanes having two or more vinyl groups in the molecule, polyoxyalkylenes having two or more allyl groups in the molecule, polyglycerols having two or more allyl groups in the molecule, and α,ω-alkenyl dienes. It is also possible to use a crosslinked organopolysiloxane containing at least one moiety selected from the group consisting of a polyoxyalkylene moiety, a polyglycerin moiety, a long-chain alkyl moiety, an alkenyl moiety, an aryl moiety, and a fluoroalkyl moiety in the crosslinked molecule.When a composition consisting of a crosslinked organopolysiloxane and an oil that is liquid at room temperature is blended, the amount of the composition in the cosmetic is preferably 0.1 to 80% by mass, and more preferably 1 to 50% by mass.
[0054] Silicone wax is a silicone-modified olefin wax obtained by addition reaction of an olefin wax having an unsaturated group composed of an α-olefin and a diene with an organohydrogenpolysiloxane having one or more hydrosilyl groups per molecule. The α-olefin in the olefin wax is preferably an α-olefin having 2 to 12 carbon atoms, such as ethylene, propylene, 1-butene, 1-hexene, or 4-methyl-1-pentene, and the diene is preferably butadiene, isoprene, 1,4-hexadiene, vinylnorbornene, ethylidenenorbornene, or dicyclopentadiene. The organohydrogenpolysiloxane having hydrosilyl groups can be linear or branched siloxane.
[0055] Furthermore, the cosmetic of the present invention may contain ingredients that are commonly used in cosmetic preparations, such as oil-soluble gelling agents, antiperspirants, moisturizing agents, antibacterial and preservative agents, antibacterial agents, fragrances, salts, antioxidants, pH adjusters, chelating agents, refreshing agents, anti-inflammatory agents, skin-beautifying ingredients (skin-whitening agents, cell activators, agents for improving rough skin, blood circulation promoters, skin astringents, antiseborrheic agents, etc.), vitamins, amino acids, nucleic acids, hormones, hair solidifying agents, etc.
[0056] Examples of oil-soluble gelling agents include metal soaps such as aluminum stearate, magnesium stearate (INCI: Magnesium Stearate), and zinc myristate (INCI: Zinc Myristate), amino acid derivatives such as N-lauroyl-L-glutamic acid (INCI: Lauroyl Glutamic Acid) and α,γ-di-n-butylamine, dextrin fatty acid esters such as dextrin palmitate (INCI: Dextrin Palmitate), dextrin stearate (INCI: Dextrin Stearate), and dextrin 2-ethylhexanoate palmitate (INCI: Dextrin Palmitate / Ethylhexanoate), and sucrose palmitate (INCI: Sucrose Palmitate / Ethylhexanoate). Examples of gelling agents include those selected from the group consisting of sucrose fatty acid esters such as sucrose palmitate, sucrose stearate (INCI: Sucrose Stearate), fructooligosaccharide fatty acid esters such as fructooligosaccharide stearic acid esters and fructooligosaccharide 2-ethylhexanoate, benzylidene derivatives of sorbitol such as monobenzylidene sorbitol and dibenzylidene sorbitol, and organically modified clay minerals such as dimethylbenzyldodecylammonium montmorillonite clay and dimethyldioctadecylammonium montmorillonite clay. The cosmetic composition of the present invention can achieve sufficient effects without incorporating these oil-soluble gelling agents.
[0057] Examples of antiperspirants include aluminum chlorohydrate (INCI), aluminum chloride (INCI), aluminum sesquichlorohydrate, zirconyl hydroxychloride, aluminum zirconium hydroxychloride, and aluminum zirconium glycine complex.
[0058] Examples of moisturizing agents include glycerin, sorbitol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, pentylene glycol, glucose, xylitol, maltitol, polyethylene glycol, hyaluronic acid, chondroitin sulfate, pyrrolidone carboxylate, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside, egg yolk lecithin, soybean lecithin, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylglycerol, phosphatidylinositol, and sphingophospholipids.
[0059] Examples of antibacterial and preservative agents include alkyl parahydroxybenzoates, benzoic acid (INCI: Benzoic Acid), sodium benzoate (INCI: Sodium Benzoate), sorbic acid (INCI: Sorbic Acid), potassium sorbate (INCI: Potassium Sorbate), and phenoxyethanol (INCI). Examples of antibacterial agents include benzoic acid, salicylic acid, carbolic acid (INCI), sorbic acid, alkyl parahydroxybenzoates, parachlorometacresol (INCI), hexachlorophene (INCI), benzalkonium chloride (INCI), chlorhexidine chloride (INCI: Chlorhexidine Dihydrochloride), trichlorocarbanilide, photosensitizers, and phenoxyethanol.
[0060] Examples of fragrances include natural fragrances and synthetic fragrances. Natural fragrances include plant-derived fragrances isolated from flowers, leaves, wood, peels, etc.; and animal-derived fragrances such as musk and civet. Synthetic fragrances include hydrocarbons such as monoterpenes; alcohols such as aliphatic alcohols and aromatic alcohols; aldehydes such as terpene aldehydes and aromatic aldehydes; ketones such as alicyclic ketones; esters such as terpene esters; lactones; phenols; oxides; nitrogen-containing compounds; acetals, etc.
[0061] Examples of salts include inorganic salts, organic acid salts, amine salts, and amino acid salts. Examples of inorganic salts include sodium, potassium, magnesium, calcium, aluminum, zirconium, and zinc salts of inorganic acids such as hydrochloric acid, sulfuric acid, carbonic acid, and nitric acid; examples of organic acid salts include salts of organic acids such as acetic acid (INCI: Acetic Acid), dehydroacetic acid (INCI: Dehydroacetic Acid), citric acid (INCI: Citric Acid), malic acid (INCI: Malic Acid), succinic acid (INCI: Succinic Acid), ascorbic acid (INCI: Ascorbic Acid), and stearic acid (INCI: Stearic Acid); examples of amine salts and amino acid salts include salts of amines such as triethanolamine (INCI: Triethanolamine), and salts of amino acids such as glutamic acid. In addition, salts of hyaluronic acid (INCI: Hyaluronic Acid), chondroitin sulfate, aluminum zirconium glycine complex, and even acid-alkali neutral salts used in cosmetic formulations can also be used.
[0062] Examples of antioxidants include tocopherol (INCI), p-t-butylphenol, butylhydroxyanisole (INCI), dibutylhydroxytoluene (INCI), phytic acid, etc. Examples of pH adjusters include lactic acid (INCI), citric acid (INCI), glycolic acid (INCI), succinic acid (INCI), tartaric acid (INCI), dl-malic acid (INCI), potassium carbonate (INCI), sodium bicarbonate (INCI), ammonium bicarbonate (INCI), etc. Examples of chelating agents include alanine (INCI), edetate sodium salt, sodium polyphosphate (INCI: Sodium Polyphosphate), sodium metaphosphate (INCI: Sodium Metaphosphate), phosphoric acid, etc. Examples of cooling agents include L-menthol, camphor, etc. Examples of anti-inflammatory agents include allantoin (INCI), glycyrrhizic acid (INCI: Glycyrrhizic Acid) and salts thereof, glycyrrhetinic acid (INCI: Glycyrrhetinic Acid) and stearyl glycyrrhetinate (INCI: Stearyl Glycyrrhetinate), tranexamic acid, azulene (INCI), etc.
[0063] Examples of skin-beautifying ingredients include whitening agents such as placenta extract, arbutin (INCI), glutathione (INCI), and saxifragaceae extract (INCI: Saxifragata Sarmentosa Extract), royal jelly (INCI), photosensitizers, cholesterol derivatives, and cell activators such as calf blood extract, skin roughness improving agents, nonylic acid valenylamide, nicotinic acid benzyl ester (INCI: Benzyl Nicotinate), nicotinic acid β-butoxyethyl ester, capsaicin (INCI), zingerone, cantharides tincture, ichthammol (INCI), caffeine (INCI), tannic acid (INCI: Tannic Acid), α-borneol (INCI), and tocopheryl nicotinate (INCI: Tocopheryl Acetate). Examples of suitable anti-inflammatory agents include blood circulation promoters such as nicotinate, inositol hexanicotinate, cyclandelate, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthine, and γ-oryzanol (INCI); skin astringents such as zinc oxide and tannic acid; and antiseborrheic agents such as sulfur and thianthrol.
[0064] Examples of vitamins include vitamin A oil, vitamin A derivatives such as retinol (INCI), retinol acetate (INCI: Retinyl Acetate), and retinol palmitate (INCI: Retinyl Palmitate), vitamin B2 derivatives such as riboflavin (INCI), riboflavin tetrabutyrate (INCI: Riboflavin Tetrabutyrate), and flavin adenine nucleotide (INCI: Disodium Flavine Adenine Dinucleotide), and pyridoxine hydrochloride, pyridoxine dioctanoate, and pyridoxine tripalmitate (INCI: Pyridoxine Triphosphate). Vitamin B6s such as vitamin B12 and its derivatives, vitamin B15 and its derivatives, vitamin Cs such as L-ascorbic acid (INCI: Ascorbic Acid), L-ascorbic acid dipalmitate, sodium L-ascorbyl-2-sulfate (INCI: Disodium Ascorbyl Sulfate), and L-ascorbic acid phosphate dipotassium, vitamin Ds such as ergocalciferol (INCI) and cholecalciferol (INCI), α-tocopherol (INCI), β-tocopherol (INCI), γ-tocopherol (INCI), dl-α-tocopherol acetate (INCI: Tocopheryl Acetate), dl-α-tocopherol nicotinate (INCI: Tocopheryl Acetate), Vitamin E compounds such as dl-α-tocopherol succinate (INCI: Tocopheryl Succinate), vitamin H, vitamin P, nicotinic acids such as nicotinic acid, benzyl nicotinate, and nicotinamide, pantothenic acids such as calcium pantothenate, D-pantothenyl alcohol, pantothenyl ethyl ether, and acetylpantothenyl ethyl ether, and biotin.
[0065] Examples of amino acids include glycine (INCI), valine (INCI), leucine (INCI), isoleucine (INCI), serine (INCI), threonine (INCI), phenylalanine (INCI), arginine (INCI), lysine (INCI), aspartic acid (INCI), glutamic acid (INCI), cystine (INCI), cysteine (INCI), methionine (INCI), and tryptophan (INCI). Examples of nucleic acids include deoxyribonucleic acid. Examples of hormones include estradiol (INCI), ethenylestradiol (INCI), and the like.
[0066] Examples of polymeric compounds for fixing hair include amphoteric, anionic, cationic, and nonionic polymeric compounds, such as polyvinylpyrrolidone-based polymeric compounds such as polyvinylpyrrolidone (INCI) and vinylpyrrolidone / vinyl acetate copolymer (INCI), acidic vinyl ether-based polymeric compounds such as methyl vinyl ether / maleic anhydride alkyl half ester copolymer, acidic polyvinyl acetate-based polymers such as vinyl acetate / crotonic acid copolymer, acidic acrylic polymeric compounds such as (meth)acrylic acid / alkyl(meth)acrylate copolymer and (meth)acrylic acid / alkyl(meth)acrylate / alkylacrylamide copolymer, and amphoteric acrylic polymeric compounds such as N-methacryloylethyl-N,N-dimethylammonium-α-N-methylcarboxybetaine / alkyl(meth)acrylate copolymer and hydroxypropyl(meth)acrylate / butylaminoethyl methacrylate / acrylic acid octylamide copolymer. Naturally occurring polymeric compounds such as cellulose or its derivatives, keratin, and collagen or its derivatives can also be suitably used.
[0067] [Cosmetics] By including a carboxylic acid-modified silicone that has excellent powder dispersibility and dispersion stability, it is possible to obtain cosmetics that have a uniform color finish, spread easily without any resistance caused by aggregates when applied, blend well with the skin, and are stable over time. The form of the cosmetics is not particularly limited, and examples include powder, oil, water-in-oil emulsion, oil-in-water emulsion, non-aqueous emulsion, and multiple emulsions such as W / O / W and O / W / O. The pH and viscosity are selected appropriately depending on the formulation.
[0068] The viscosity of the cosmetic preparation is not particularly limited by the formulation, but is preferably 1,000 to 300,000 mPa, and more preferably 1,000 to 200,000 mPa. In the present invention, the viscosity is the value measured at 25°C using a Brookfield viscometer. An example of a Brookfield viscometer is the TVB-10 model manufactured by Toki Sangyo Co., Ltd.
[0069] The method for producing the cosmetic of the present invention is not particularly limited, and conventional methods for each formulation can be selected. In the present invention, the above-mentioned components (A) to (C) and optional components can be mixed during cosmetic production. However, by preparing a dispersion of components (A) to (C) in advance and incorporating it into the cosmetic, the dispersibility and dispersion stability of the powder can be further improved. There are no particular limitations on how the dispersion can be prepared, and it can be carried out using known methods. For example, any stirrer, grinder, mixer, or disperser can be used, such as a Henschel mixer, ball mill, kneader, planetary mixer, ribbon blender, disperser mixer, homomixer, roll mill, or bead mill. In addition, since the viscosity of the dispersion decreases when the dispersion has good dispersibility, the dispersibility of component (C) can be evaluated by measuring the viscosity. The viscosity of the dispersion is preferably less than 4,000 mPa·s, and more preferably 100 to 3,000 mPa·s. The total amount of components (A) to (C) in the dispersion is preferably 50% by mass or more, more preferably 80% by mass or more, and even more preferably 90% by mass or more.
[0070] The cosmetic may be in a variety of forms, including liquid, emulsion, cream, solid, paste, gel, powder, pressed, multi-layered, mousse, spray, stick, pencil, etc.
[0071] Examples of cosmetics include skin care cosmetics such as liquids, massage lotions, beauty serums, beauty oils, cleansers, deodorants, hand creams, lip balms, and wrinkle concealers, makeup cosmetics such as makeup bases, concealers, face powders, powder foundations, liquid foundations, cream foundations, oil-based foundations, blushers, eye shadows, mascara, eyeliners, eyebrow pencils, and lipsticks, hair cosmetics such as shampoos, rinses, treatments, and setting agents, antiperspirants, and UV protection cosmetics such as sunscreen oils, sunscreen emulsions, and sunscreen creams. In particular, those that contain water and are in the form of emulsions are suitable for use as makeup bases, liquid foundations, sunscreen emulsions, sunscreen creams, and the like.
[0072] The present invention will be specifically explained below with reference to synthesis examples, examples, and comparative examples, but the present invention is not limited to the following examples. In the following examples, unless otherwise specified, "%" in the composition indicates % by mass. The blend amount listed with the product name is the blend amount in the blended product. Carboxylic acid-modified silicone compounds are shown in synthesis examples 1 to 5, and cosmetics are shown in the examples and comparative examples. In the tables, synthesis example 1 etc. refers to the carboxylic acid-modified silicone obtained in synthesis example 1, and comparative structure 1 etc. refers to the silicone of comparative structure 1. The bonding order of each siloxane unit is not limited to the following.
[0073] Synthesis Example: (A) Carboxylic Acid-Modified Silicone [Synthesis Example 1] A reactor was charged with 87 g of methylhydrogenpolysiloxane represented by formula (8), 24 g of allyl glycol, 20 g of isopropyl alcohol, and 0.1 g of a 0.5% toluene solution of chloroplatinic acid-vinylsiloxane complex, and the mixture was reacted at 80°C for 3 hours. The mixture was then distilled off under reduced pressure at 110°C / 400 Pa to obtain a hydroxyl-containing dimethylpolysiloxane represented by formula (9). Next, 30 g of succinic anhydride, 50 g of tetrahydrofuran (hereinafter referred to as THF), and 10 g of triethylamine were added to the resulting formula (9), and the mixture was reacted at 70°C for 5 hours. After completion of the reaction, 80 g of water was added and the mixture was washed with water. After washing with water three times, the mixture was distilled off under reduced pressure at 100°C / 5 mmHg to obtain a carboxylic acid-modified silicone represented by formula (10). The product was a pale yellow liquid with a molecular weight of 1,300.
[0074]
[0075] [Synthesis Example 2] 42 g of methylhydrogenpolysiloxane represented by formula (11), 77 g of organopolysiloxane represented by formula (12), and 0.1 g of a 0.5% toluene solution of chloroplatinic acid-vinylsiloxane complex were added to a reactor and reacted at 80 ° C. for 3 hours. Then, 30 g of allyl glycol, 20 g of isopropyl alcohol, and 0.1 g of a 0.5% toluene solution of chloroplatinic acid-vinylsiloxane complex were added and reacted at 80 ° C. for 3 hours. The mixture was then distilled under reduced pressure at 110 ° C. / 3 mmHg to obtain a hydroxyl group-containing dimethylpolysiloxane represented by formula (13). Next, 30 g of succinic anhydride, 50 g of THF, and 10 g of triethylamine were added to the obtained formula (12), and the mixture was reacted at 70 ° C. for 5 hours. After completion of the reaction, 80 g of water was added and the mixture was washed with water. After further washing with water three times, the residue was evaporated under reduced pressure at 100°C and 5 mmHg to obtain the carboxylic acid-modified silicone of formula (14). This product was a pale yellow liquid with a molecular weight of 1,600.
[0076]
[0077] Synthesis Example 3: A reactor was charged with 48 g of the methyl hydrogen polysiloxane represented by formula (15), 50 g of 1-dodecene, and 0.1 g of a 0.5% toluene solution of chloroplatinic acid-vinylsiloxane complex, and the mixture was reacted at 80°C for 3 hours. Subsequently, 15 g of allyl glycol, 10 g of isopropyl alcohol, and 0.1 g of a 0.5% toluene solution of chloroplatinic acid-vinylsiloxane complex were added, and the mixture was reacted at 80°C for 3 hours. The mixture was then distilled under reduced pressure at 110°C / 3 mmHg to obtain a hydroxyl group-containing dimethyl polysiloxane represented by formula (16). Next, 15 g of succinic anhydride, 50 g of THF, and 10 g of triethylamine were added to the resulting formula (16), and the mixture was reacted at 70°C for 5 hours. After completion of the reaction, 80 g of water was added and the mixture was washed with water. After further washing with water three times, the residue was evaporated under reduced pressure at 100°C and 5 mmHg to obtain the carboxylic acid-modified silicone of formula (17). This product was a pale yellow liquid with a molecular weight of 1,200.
[0078]
[0079] Synthesis Example 4 A reactor was charged with 83 g of the methyl hydrogen polysiloxane represented by formula (18), 62 g of allyl isostearyl ether, and 0.1 g of a 0.5% toluene solution of chloroplatinic acid-vinylsiloxane complex, and the mixture was reacted at 80°C for 3 hours. Furthermore, 77 g of the organopolysiloxane represented by formula (12) and 0.1 g of a 0.5% toluene solution of chloroplatinic acid-vinylsiloxane complex were added, and the mixture was reacted at 80°C for 3 hours. Then, 30 g of allyl glycol, 20 g of isopropyl alcohol, and 0.1 g of a 0.5% toluene solution of chloroplatinic acid-vinylsiloxane complex were charged, and the mixture was reacted at 80°C for 3 hours. The mixture was then distilled off under reduced pressure at 110°C / 3 mmHg to obtain a hydroxyl-containing dimethyl polysiloxane represented by formula (19). Next, 30 g of succinic anhydride, 50 g of THF, and 10 g of triethylamine were added to the obtained formula (19), and the mixture was reacted at 70°C for 5 hours. After the reaction was completed, 200 g of water was added and the mixture was washed with water. After washing with water three times, the mixture was distilled under reduced pressure at 100°C / 5 mmHg to obtain a carboxylic acid-modified silicone of formula (20). This product was a pale yellow liquid and had a molecular weight of 2,800.
[0080]
[0081] Synthesis Example 5 A reactor was charged with 135 g of the methylhydrogenpolysiloxane represented by formula (21), 45 g of 1-hexadecene, and 0.15 g of a 0.5% toluene solution of chloroplatinic acid-vinylsiloxane complex, and the mixture was reacted at 80°C for 3 hours. Furthermore, 77 g of an organopolysiloxane represented by formula (12) and 0.1 g of a 0.5% toluene solution of chloroplatinic acid-vinylsiloxane complex were added, and the mixture was reacted at 80°C for 3 hours. Then, 49 g of formula (22), 40 g of isopropyl alcohol, and 0.1 g of a 0.5% toluene solution of chloroplatinic acid-vinylsiloxane complex were charged, and the mixture was reacted at 80°C for 3 hours. The mixture was then distilled under reduced pressure at 110°C / 3 mmHg to obtain a hydroxyl-containing dimethylpolysiloxane represented by formula (23). Next, 30 g of succinic anhydride, 100 g of THF, and 10 g of triethylamine were added to the obtained formula (23), and the mixture was reacted at 70°C for 5 hours. After the reaction was completed, 300 g of water was added and the mixture was washed with water. After washing with water three times, the mixture was distilled under reduced pressure at 100°C / 5 mmHg to obtain a carboxylic acid-modified silicone of formula (24). This product was a pale yellow liquid and had a molecular weight of 3,500.
[0082]
[0083] The molecular weight was measured by GPC (gel permeation chromatography) analysis using polystyrene as a standard under the following conditions, and the weight-average molecular weight was determined. [Measurement conditions] Developing solvent: tetrahydrofuran (THF) Flow rate: 0.6 mL / min Detector: differential refractive index detector (RI) Column: TSK Guard column Super H-H TSKgel Super HM-N (6.0 mm I.D. × 15 cm × 1) TSKgel Super H2500 (6.0 mm I.D. × 15 cm × 1) (all manufactured by Tosoh Corporation) Column temperature: 40°C Sample injection volume: 50 μL (THF solution with a concentration of 0.3% by mass)
[0084] [Examples 1 to 15, Comparative Examples 1 to 6] Using the carboxylic acid-modified silicones obtained in Synthesis Examples 1 to 5, dispersions (slurries) were prepared using a bead mill according to the compositional formulations in Table 1 below. The resulting dispersions were subjected to the following dispersibility evaluation. As a comparative example, in Comparative Structure 1, a carboxylic acid-modified silicone of the following formula (25) was used. Hereinafter, "Synthesis Example" in the tables refers to the carboxylic acid-modified silicone obtained in the above Synthesis Example.
[0085] Comparative structure 2 used a carboxylic acid-modified silicone of the following formula (26).
[0086]
[0087] [Evaluation of Dispersion Viscosity (Dispersibility)] The obtained dispersion was stored in a 100 g glass bottle at 25°C for 2 months. The viscosity of the dispersion immediately after preparation and after 2 months was measured at 25°C using a Brookfield viscometer (TVB-10 model, manufactured by Toki Sangyo Co., Ltd.) according to the method described in JIS K 7111-1:1999. The results are shown according to the following evaluation criteria. [Evaluation criteria] ◎: 1,000 mPa.s or more and less than 2,000 mPa.s ○: 2,000 mPa.s or more and less than 4,000 mPa.s △: 4,000 mPa.s or more and less than 10,000 mPa.s ×: 10,000 mPa.s or more, no fluidity
[0088]
[0089] Regarding *1 and *2 in Tables 1 and 2 *1: STR-100A-LP: Hydrous silica (display name (HYDRATED SILICA)) / aluminum hydroxide (display name (ALMINUM HYDROXIDE)) hydrogen dimethicone (display name HYDROGEN DIMETHICONE) treated titanium oxide (display name TITANIUM OXIDE) *2: FINEX-30-LP: Hydrous silica (display name (HYDRATED SILICA)) / hydrogen dimethicone (display name HYDROGEN DIMETHICONE) treated zinc oxide (display name ZINC OXIDE)
[0090] As is clear from the above results, although silicone oil was used in Examples 1 to 10 and ester oil in Examples 11 to 15, all of them provided dispersions with low viscosity (less than 4,000 mPa s) and excellent stability over time. On the other hand, the dispersions obtained in Comparative Examples 1 to 6 were found to have high viscosity (4,000 mPa s or more) immediately after preparation and to thicken over time. Thus, it was found that the carboxylic acid-modified silicone of the present invention has high dispersibility and can provide low-viscosity dispersions with even better storage stability.
[0091] The silicones of Comparative Structure 1 and Comparative Structure (24) in the Comparative Examples have a structure in which a carboxylic acid is bonded to a silicon atom via a hydrocarbon group, whereas the carboxylic acid-modified silicone of the present invention has a carboxy group bonded to a silicon atom via an ester bond. This makes it easy to adsorb to the surfaces of powder particles, inhibits particle aggregation, and provides excellent powder dispersibility and dispersion stability.
[0092] [Examples 16 and 17, Comparative Examples 7 and 8] Cosmetic W / O foundations were prepared according to the formulations shown in Table 3. (Production method) Components 1 to 7 and 9 to 10 were mixed uniformly. After uniform mixing, components 17 to 19 were gently added and stirred to obtain an emulsion. A mixture of components 8 and 13 to 16 previously mixed with stirring, and component 12 were added to obtain a foundation.
[0093] The obtained cosmetics were evaluated for (1) spreadability, (2) skin compatibility, and (3) stability (over time) using the following evaluation criteria. [Characteristics evaluation] The cosmetics were evaluated for spreadability and color using the following evaluation criteria by 10 expert panelists. The results were evaluated based on the average of the 10 panelists' scores and in accordance with the following criteria. [Evaluation criteria] 5 points: very good 4 points: good 3 points: average 2 points: somewhat poor 1 point: poor The obtained average scores were evaluated with ○ or × according to the following criteria. [Evaluation criteria] ◎: Average score is 4.5 points or more 〇: Average score is 3.5 points or more but less than 4.5 △: Average score is 2.5 points or more but less than 3.5 ×: Average score is 1.5 points or more but less than 2.5 XX: Average score is less than 1.5 points
[0094] [Stability (over time)] The cosmetic was filled into a 30 mL vial and stored in a constant temperature bath at 50°C for one week, after which the viscosity was measured. The percentage change in viscosity after storage relative to immediately after production (initial temperature: 25°C) [(viscosity after storage - initial viscosity) / initial viscosity x 100] was calculated. ◎: 0% or more and less than 25% ◯: 25% or more and less than 40% △: 40% or more and less than 50% ×: 50% or more or separation occurred The viscosity measurement for this evaluation was performed at 25°C using a Brookfield viscometer (TVB-10 model, manufactured by Toki Sangyo Co., Ltd.). The initial viscosity ranged from 5,000 to 200,000 mPa s.
[0095] (Note 1) Shin-Etsu Chemical Co., Ltd. KSG-210 (INCI: DIMETHYCONE / PEG-10 / 15 CROSSPOLYMER, DIMETHICON) (Note 2) Shin-Etsu Chemical Co., Ltd. KF-6017P (INCI: PEG-10 DIMETHICOME) (Note 3) Shin-Etsu Chemical Co., Ltd. KF-6105 (INCI: LAURYL POLYGLYCERYL-3 POLYDIMETHYLSILOXYETHYL DIMETICONE) (Note 4) Shin-Etsu Chemical Co., Ltd. KMP-590 (INCI: POLYMETHYLSILSESQUIOXANE) (Note 5) Shin-Etsu Chemical Co., Ltd. KTP-09W (INCI: TITANIUM DIOXIDE, ALUMINUM HYDROXIDE, TRIETHOXYSILYLETHYL POLYDIMETHYLSILOXYETHYL HEXYL (Note 6) KTP-09R (INCI: IRON OXIDES, TRIETHOXYSILYLETHYL POLYDIMETHYLSILOXYETHYL HEXYL DIMETICONE) manufactured by Shin-Etsu Chemical Co., Ltd. (Note 7) KTP-09Y (INCI:IRON) manufactured by Shin-Etsu Chemical Co., Ltd. (Note 8) KTP-09B (INCI: IRON OXIDES, TRIETHOXYSILYLETHYL POLYDIMETHYLSILOXYETHYL HEXYL DIMETICONE) manufactured by Shin-Etsu Chemical Co., Ltd. (Production method) a: Components 5 to 7 and 9 to 10 were mixed by stirring. b: Components 1 to 4, 13 to 16 and 8 were mixed by stirring. c: Components 17 to 19 were mixed uniformly. d: The mixture obtained in c was added to the mixture obtained in a and mixed by stirring to emulsify. e: Component 12 and the mixture obtained in b were added to the emulsion obtained in d and mixed by stirring. As is clear from the above results, it was demonstrated that the cosmetics of Examples 11 and 12 had good spreadability and compatibility with the skin, as well as good stability, compared to the cosmetics of Comparative Examples 5 and 6.
[0096] Next, examples of cosmetics containing the carboxylic acid-modified silicone of the present invention are shown. [Example 18: Sunscreen emulsion]
[0097] (Note 1) Shin-Etsu Chemical Co., Ltd. KSG-210 (INCI: DIMETHYCONE / PEG-10 / 15 CROSSPOLYMER, DIMETHICON) (Note 2) Shin-Etsu Chemical Co., Ltd. KF-56A (INCI: DIPHENYL SILOXYPHENYL TRIMETHICONE) (Note 3) Shin-Etsu Chemical Co., Ltd. KF-6028 (INCI: PEG-9 POLYDIMETHYLSILOXYETHYL DIMETHICONE) (Note 4) Teika Corporation MT-100TV (Note 5) Teika Corporation MZX-508TS (Manufacturing method) Components 1 to 8 were thoroughly mixed using a homodisper to achieve uniformity. Components 9 to 12 were then gently added after uniform mixing, and the mixture was stirred to form an emulsion, yielding a sunscreen emulsion. The resulting sunscreen emulsion had good spreadability, was non-sticky, and was easy to use.
[0098] [Example 19: Makeup base] (Note 1) Shin-Etsu Chemical Co., Ltd. KSG-210 (INCI: DIMETHICONE / PEG-10 / 15 CROSSPOLYMER, DIMETHICON) (Note 2) Shin-Etsu Chemical Co., Ltd. KSG-15 (INCI: DIMETHYCONE / VINYL DIMETHICON CROSSPOLYMER, CYCLOPENTASILOXANE) (Note 3) Shin-Etsu Chemical Co., Ltd. KF-6017 (INCI: PEG-10 DIMETHICOME) (Note 4) Shin-Etsu Chemical Co., Ltd. KP-545 (INCI: ACRYLATES / DIMETHICONE) (Note 5) KSP-105 (INCI: VINYLDIMETHICON / METHICONE SILSE SQUIOXANE CROSSPOLYMER) manufactured by Shin-Etsu Chemical Co., Ltd. (Production Method) Components 1 to 5 were thoroughly mixed to homogeneity. Components 8 to 12 were mixed uniformly and then gently added and stirred to form an emulsion, to which components 6 and 7 were added and stirred uniformly to obtain a makeup base. The resulting makeup base had good spreadability, was non-sticky, and was excellent in usability.
[0099] [Example 20: Sunscreen cream] (Note 1) Shin-Etsu Chemical Co., Ltd. KSG-210 (INCI: DIMETHICONE / PEG-10 / 15 CROSSPOLYMER, DIMETHICON) (Note 2) Shin-Etsu Chemical Co., Ltd. KSG-15 (INCI: DIMETHYCONE / VINYL DIMETHICON CROSSPOLYMER, CYCLOPENTASILOXANE) (Note 3) Shin-Etsu Chemical Co., Ltd. KF-6028P (INCI: PEG-9 POLYDIMETHYLSILOXYETHYL DIMETHICONE) (Note 4) Shin-Etsu Chemical Co., Ltd. KSP-100 (INCI: VINYLDIMETHICON / METHICONE SILSE SQUIOXANE CROSSPOLYMER) (Production Method) Components 1 to 7 were thoroughly mixed to form a uniform mixture. Components 10 to 13 were mixed uniformly and then gently added and stirred to form an emulsion, to which components 8 and 9 were added and stirred uniformly to obtain a sunscreen cream. The resulting sunscreen cream had good spreadability, was non-sticky, and was easy to use and stable.
[0100] [Example 21: Sunscreen cream] (Note 1) Shin-Etsu Chemical Co., Ltd. KSG-240 (INCI: DIMETHICONE / PEG-10 / 15 CROSSPOLYMER, CYCLOPENTASILOXANE) (Note 2) Shin-Etsu Chemical Co., Ltd. KSG-18A (INCI: DIMETHICONE / PHENYL VINYL DIMETHICON CROSSPOLYMER, DIPHENYL SILOXYPHENYL TRIMETHICONE) (Note 3) Shin-Etsu Chemical Co., Ltd. KF-6038 (INCI: LAURYL PEG-9 POLYDIMETHYLSILOXYETHYL DIMETHICONE) (Note 4) KF-56A (INCI: DIPHENYL SILOXYPHENYL TRIMETHICONE) manufactured by Shin-Etsu Chemical Co., Ltd. (Note 5) KSP-300 (INCI: DIPHENYL DIMETHICONE / VINYL DIPHENYL DIMETHICONE / SILSESQUIOXANE CROSSPOLYMER) manufactured by Shin-Etsu Chemical Co., Ltd. (Production Method) Components 1 to 11 were thoroughly mixed to homogeneity. To this, components 13 to 17 were uniformly mixed and then gently added and stirred to form an emulsion, to which component 12 was added and stirred to homogeneity to obtain a sunscreen cream. The resulting sunscreen cream had good spreadability, was not sticky, and was excellent in usability and stability.
[0101] [Example 22: Sunscreen cream] (Note 1) Shin-Etsu Chemical Co., Ltd. KSG-820 (INCI: LAURYL DIMETHICONE / POLYGLYCERYL-3 CROSSPOLYMER, ISODODECANE) (Note 2) Shin-Etsu Chemical Co., Ltd. KSG-44 (INCI: VINYL DIMETHICONE / LAURYL DIMETHICONE CROSSPOLYMER, SQUALANE) (Note 3) Shin-Etsu Chemical Co., Ltd. KF-6105 (INCI: LAURYL POLYGLYCERYL-3 POLYDIMETHYLSILOXYETHYL DIMETHICONE) (Note 4) KF-56A (INCI: DIPHENYL SILOXYPHENYL TRIMETHICONE) manufactured by Shin-Etsu Chemical Co., Ltd. (Note 5) KSP-441 (INCI: POLYSILICONE-22) manufactured by Shin-Etsu Chemical Co., Ltd. (Note 6) KSP-591 (INCI: POLYMETHYLSILSESQUIOXANE) manufactured by Shin-Etsu Chemical Co., Ltd. (Manufacturing Method) Components 1 to 8 were thoroughly mixed to homogeneity. Components 10 to 20 were mixed uniformly and then gently added and stirred to form an emulsion, to which component 9 was added and stirred uniformly to obtain a sunscreen cream. The resulting sunscreen cream had good spreadability, was not sticky, and was excellent in usability and stability.
[0102] [Example 23: Foundation] (Note 1) Shin-Etsu Chemical Co., Ltd. KSG-210 (INCI: DIMETHICONE / PEG-10 / 15 CROSSPOLYMER, DIMETHICON) (Note 2) Shin-Etsu Chemical Co., Ltd. KSG-18A (INCI: DIMETHICONE / PHENYL VINYL DIMETHICON CROSSPOLYMER, DIPHENYL SILOXYPHENYL TRIMETHICONE) (Note 3) Shin-Etsu Chemical Co., Ltd. KF-6038 (INCI: LAURYL PEG-9 POLYDIMETHYLSILOXYETHYL DIMETHICONE) (Note 4) Shin-Etsu Chemical Co., Ltd. KF-56A (INCI: Diphenyl Siloxyphenyl Trimethicone) (Note 5) Shin-Etsu Chemical Co., Ltd. KF-9901 (INCI: Hydrogen Dimethicone) treated titanium oxide (INCI: Titanium Dioxide) (Note 6) Shin-Etsu Chemical Co., Ltd. KF-9901 (INCI: Hydrogen Dimethicone) treated red iron oxide (INCI: Iron Oxides) (Note 7) Shin-Etsu Chemical Co., Ltd. KF-9901 (INCI: Hydrogen Dimethicone) treated red iron oxide (INCI: Iron Oxides) Yellow iron oxide (INCI: IRON OXIDES) treated with KF-9901 (INCI: HYDROGEN DIMETHICONE) (Note 8) Black iron oxide (INCI: IRON OXIDES) treated with KF-9901 (INCI: HYDROGEN DIMETHICONE) manufactured by Shin-Etsu Chemical Co., Ltd. (Production Method) Components 1 to 8 were thoroughly mixed to homogeneity. To this, components 15 to 18 were mixed uniformly, and then gently added and stirred to form an emulsion. 9 was then added and stirred uniformly to obtain a foundation. The resulting foundation had good spreadability, was not sticky, and was excellent in usability and stability. (Production Method) a: Components 1 to 8 were mixed by stirring. b: Components 9 to 14 were mixed by stirring. c: Components 15 to 18 were mixed uniformly. d: The mixture obtained in c was added to the mixture obtained in a and stirred to emulsify. e: The mixture obtained in b was added to the emulsion obtained in d and mixed with stirring. The obtained foundation had good spreadability, was not sticky, and was excellent in use.
[0103] [Example 24: Foundation] (Note 1) Shin-Etsu Chemical Co., Ltd. KSG-820 (INCI: LAURYL DIMETHICONE / POLYGLYCERYL-3 CROSSPOLYMER, ISODODECANE) (Note 2) Shin-Etsu Chemical Co., Ltd. KSG-44 (INCI: VINYL DIMETHICONE / LAURYL DIMETHICONE CROSSPOLYMER, SQUALANE) (Note 3) Shin-Etsu Chemical Co., Ltd. KF-6105 (INCI: LAURYL POLYGLYCERYL-3 POLYDIMETHYLSILOXYETHYL DIMETHICONE) (Note 4) Shin-Etsu Chemical Co., Ltd. KTP-09W (INCI: TITANIUM DIOXIDE, ALUMINUM HYDROXIDE, TRIETHOXYSILYLETHYL POLYDIMETHYLSILOXYETHYL HEXYL DIMETICONE) (Note 5) KTP-09R (INCI: IRON OXIDES, TRIETHOXYSILYLETHYL POLYDIMETHYLSILOXYETHYL HEXYL DIMETICONE) manufactured by Shin-Etsu Chemical Co., Ltd. (Note 6) KTP-09Y (INCI:IRON) manufactured by Shin-Etsu Chemical Co., Ltd. (Note 7) Shin-Etsu Chemical Co., Ltd., KTP-09B (INCI: IRON OXIDES, TRIETHOXYSILYLETHYL POLYDIMETHYLSILOXYETHYL HEXYL DIMETICONE) (Production method) a: Components 1 to 4 were mixed by stirring. b: Components 7 to 12 were mixed by stirring. c: Components 13 to 16 were mixed uniformly. d: The mixture obtained in c was added to the mixture obtained in a and mixed by stirring to emulsify. e: The mixture obtained in b, 5, and 6 were added to the mixture obtained in d and mixed by stirring. The obtained foundation had good spreadability, was not sticky, and was excellent in use.
[0104] [Example 25: Sunscreen cream] (Production method) a: Components 6 to 16 were mixed uniformly. b: Components 1 to 5 were mixed uniformly. c: The mixture obtained in b was added to the mixture obtained in a and mixed with stirring to emulsify. The resulting sunscreen cream had good spreadability, was smooth and non-sticky, and was excellent in use.
[0105] [Example 26: Lipstick] (Note 1) KP-561P (INCI: ACRYLATES / STEARYL ACRYLATE / DIMETHICONE COPOLYMER) manufactured by Shin-Etsu Chemical Co., Ltd. (Note 2) KP-550 (INCI: ACRYLATES / DIMETHICONE COPOLYMER, ISODODECANE) manufactured by Shin-Etsu Chemical Co., Ltd. (Production Method) a: Components 1 to 7 were mixed under heat. b: Components 9 to 18 were mixed uniformly. c: Component 8 was added to the mixture obtained in b and mixed. The obtained lipstick had good spreadability, was smooth and blended well with the skin, had good gloss, and was excellent in makeup long-lasting properties.
[0106] [Example 27: Eyeliner] (Note 1) Shin-Etsu Chemical Co., Ltd. KF-6017 (INCI: PEG-10 DIMETHICOME) (Note 2) Shin-Etsu Chemical Co., Ltd. KF-6038 (INCI: LAURYL PEG-9 POLYDIMETHYLSILOXYETHYL DIMETHICONE) (Note 3) Shin-Etsu Chemical Co., Ltd. KF-9021 (INCI: TRIMETHYLSILOXYSILICATE, CYCLOPENTASILOXANE) (Note 4) Shin-Etsu Chemical Co., Ltd. KTP-09B (INCI: IRON OXIDES, TRIETHOXYSILYLETHYL POLYDIMETHYLSILOXYETHYL HEXYL DIMETICONE)
[0107] (Production Method) a: Components 1 to 8 were mixed. b: Components 9 to 12 were mixed uniformly. c: The mixture obtained in b was added to the mixture obtained in a and emulsified. The obtained eyeliner had good spreadability, was smooth and blended well with the skin, and was excellent in water resistance and usability.
[0108] [Example 28: Sunscreen cream (oil-in-water type)] (Note 1) Lauryl group, PEG-9 co-modified silicone, HLB=10.5 (Note 2) KSG-44 (INCI: VINYL DIMETHICON / LAURYL DIMETHICONE CROSSPOLYMER, SQUALANE) manufactured by Shin-Etsu Chemical Co., Ltd. (Note 3) STR-100W-OTS manufactured by Sakai Chemical Industry Co., Ltd. (Note 4) MZX-508OTS manufactured by Teika Corporation (Note 5) BASF (Manufacturing method) a: Components 6 to 9 were mixed. b: Components 3 to 5 were added to components 1 and 2 to prepare a gel. c: The mixture obtained in a was added to the gel obtained in b and mixed by stirring. d: Components 10 to 13 were added to the mixture obtained in c and emulsified. The resulting sunscreen cream spread easily, was fresh, smooth and non-sticky, and was easy to use.
[0109] [Example 29: Sunscreen cream (oil-in-water type)] (Note 1) Lauryl group, PEG-9 co-modified silicone, HLB=10.5 (Note 2) MZX-508OTS manufactured by Teika Corporation (Note 3) KF-6013 (INCI: PEG-9 DIMETHICONE) manufactured by Shin-Etsu Chemical Co., Ltd. (Note 4) STR-100W-OTS manufactured by Sakai Chemical Industry Co., Ltd. (Manufacturing method) a: Components 6 to 8 were mixed. b: A portion of component 13 was added to components 9 and 10 and mixed. c: Components 4 and 5 were added to components 1 to 3 to prepare a gel. d: The mixture obtained in a was added to the gel obtained in c and mixed with stirring. e: Components 11, 12, and the remaining 13 were added to the mixture obtained in d and emulsified. d: The emulsion obtained in e and the mixture obtained in b were added. The resulting sunscreen cream spread easily, was fresh, smooth and non-sticky, and was easy to use.
[0110] [Example 30: Foundation (O / W type)] (Note 1) Lauryl group, PEG-9 co-modified silicone, HLB=10.5 (Note 2) Miyoshi Chemicals Co., Ltd.: ALT-RHP-10 (Note 3) Miyoshi Chemicals Co., Ltd.: ALT-YHP-10 (Note 4) Miyoshi Chemicals Co., Ltd.: ALT-BHP-10 (Note 5) Shin-Etsu Chemical Co., Ltd.: KF-6013 (INCI: PEG-9 DIMETHICONE) (Note 6) Miyoshi Chemicals Co., Ltd.: ALT-TSR-10 (Manufacturing method) a: Components 6 to 10 were mixed. b: Components 11 and 12 were mixed with a portion of component 16. c: Components 1 to 3 were mixed with components 4 and 5 to prepare a gel. d: The mixture obtained in a was added to the gel obtained in c and mixed with stirring. e: Components 13 to 15 and the remaining 16 were added to the mixture obtained in d and emulsified. f: The mixture obtained in b was added to the emulsion obtained in e. The resulting foundation had good spreadability, was moist, smooth and non-sticky, and was easy to use.
[0111] [Example 31: Shaking type sunscreen] (Note 1) MZX-508OTS manufactured by Teika Corporation (Note 2) KSP-100 (INCI: VINYLDIMETHICON / METHICONE SILSESQUIOXANE CROSSPOLYMER) manufactured by Shin-Etsu Chemical Co., Ltd. (Production method) a: Components 1 to 3 were mixed. b: Components 4 to 10 were added to the mixture obtained in a and mixed. c: Components 11 to 14 were added to the mixture obtained in b and mixed with stirring. The resulting sunscreen spread well, was refreshing, smooth and non-sticky, and had excellent usability.
[0112] From the above, it has been demonstrated that cosmetics containing the carboxylic acid-modified silicone of the present invention have excellent powder dispersibility and dispersion stability, good spreadability and skin compatibility, and excellent stability over time. It should be noted that the present invention is not limited to the above-described embodiments. The above-described embodiments are merely examples, and any product that has substantially the same configuration as the technical concept described in the claims of the present invention and exhibits similar effects is included within the technical scope of the present invention.
Claims
1. (A) carboxylic acid-modified silicone having a weight average molecular weight of 1,000 to 5,000 represented by the following formula (1): 0.1 to 10 mass %, [In the formula, R 1 each independently represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 15 carbon atoms, an aralkyl group having 7 to 15 carbon atoms, or -O-R 4 (Q is an alkylene group having 2 to 4 carbon atoms, R 4 R is a monovalent organic group selected from the group consisting of an alkyl group having 3 to 30 carbon atoms; 2 are independently a carboxylic acid group represented by the following formula (2): (In the formula, X represents a hydrogen atom or a monovalent cation, n represents 2 to 4, m represents 2 to 4, L represents 0 to 20, and p represents 2 to 6.) R 3 is expressed by the following formula (3) or (4): (In the formula, R 1 are independently the same as above. h is 0 to 5, i is 0 to 80, and j is 0 to 3. ) A group represented by the formula: a is 0 to 20, b is 0 to 5, c is 0 to 3, d is 0 or more, e is 0 or more, and f and g are numbers that satisfy f+g=2+d+e×2. However, b and g cannot be 0 at the same time. ] A cosmetic comprising: (B) an oil agent: 1 to 90% by mass, and (C) a powder: 2 to 95% by mass.
2. The cosmetic preparation according to claim 1, further comprising (D) 0.1 to 30% by weight of an organic ultraviolet absorber.
3. The cosmetic composition according to claim 1, wherein the oil (B) is one or more selected from the group consisting of silicone oil, hydrocarbon oil, ester oil, glyceride oil, natural animal and vegetable oils and fats, semi-synthetic oils and fats, and higher alcohols.
4. The cosmetic composition according to claim 1, wherein the powder (C) is at least one selected from the group consisting of titanium oxide, zinc oxide and colored pigments.
5. The cosmetic preparation according to any one of claims 1 to 4, which further comprises (E) a surfactant and water and is in the form of an emulsion.
Citation Information
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