Composite particles, method for producing composite particles, and cosmetics
Composite particles with rubber-coated organic resin particles using silica as a binder address the issues of hardness and environmental impact, providing a soft feel and natural finish in cosmetics.
Patent Information
- Application Number
- JP2022064734
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-04-08
- Publication Date
- 2025-09-24
- Estimated Expiration
- 2042-04-08
AI Technical Summary
Existing cosmetic particles made of organic resins provide a hard feel and poor spreadability, while microplastics are environmentally harmful and difficult to recover, and naturally derived cellulose particles offer low slipperiness and a hard feel.
Composite particles are formed by adhering rubber particles to the surfaces of organic resin particles using silica as a binder, with a method involving a hydrolysis-condensation reaction of tetraalkoxysilane in a mixture with cationic substances and alkaline substances.
The composite particles offer a soft feel, smooth texture, extensibility, and light scattering properties, resulting in a natural finish, while being environmentally friendly.
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Abstract
Description
[Technical Field]
[0001] The present invention relates to composite particles, specifically composite particles formed by adhering rubber particles to the surfaces of organic resin particles, a method for producing the same, and cosmetics containing the particles. [Background technology]
[0002] Spherical particles of organic resins (plastics), such as polyamide resin, polyacrylic resin, polystyrene resin, and silicone resin (polyorganosilsesquioxane), are used in cosmetics such as foundations to provide a smooth feel and good spreadability. They also scatter light, creating a natural finish without an unnatural sheen. However, because these particles are made of resin (plastic), they have the disadvantage of being hard to the touch.
[0003] Microplastics, which are water-insoluble, solid, and minute organic matter with a diameter of 5 mm or less, have become a global concern due to concerns about their impact on ecosystems, including the risk that the chemicals they contain or adsorb may be absorbed into the food chain. Authorities in some countries are considering regulating them. Because microplastics manufactured as such particles are extremely small, they are difficult to recover if they end up in rivers, oceans, ponds, and other areas. Furthermore, the decomposition of these organic resin particles in the natural environment is extremely slow. Therefore, the use of naturally derived cellulose particles in cosmetics has been proposed (Patent Document 1). However, while cellulose particles are biodegradable, they suffer from drawbacks such as low slipperiness and a hard feel.
[0004] Patent Document 2 proposes a cosmetic product using composite particles in which a silicone elastomer is attached to the surface of particles (mother particles). It is said that the light diffusion properties of the silicone elastomer improve the natural finish and provide a soft, moist feel. A specific example is given of using a silicone resin (polyorganosilsesquioxane) as a binder to fix the silicone elastomer to the particle surface. When the mother particles of these composite particles are organic resin, they have inferior slip properties compared to inorganic particles, and may even have poor spreadability, resulting in creasing. This is thought to be because the organic resin of the mother particles and the silicone resin binder are not as hard as inorganic particles. [Prior art documents] [Patent documents]
[0005] [Patent Document 1] International Publication No. WO2020 / 004604 Brochure [Patent Document 2] Japanese Patent Application Laid-Open No. 2011-1332 Summary of the Invention [Problem to be solved by the invention]
[0006] The present invention has been made in view of the above circumstances, and aims to provide composite particles formed by adhering rubber particles to the surfaces of organic resin particles, which can impart the effects of a soft feel, smooth sensation in use, extensibility, and light scattering properties, resulting in a natural finish; a method for producing the composite particles; and a cosmetic composition containing the composite particles. [Means for solving the problem]
[0007] In order to solve the above problems, the present invention provides: Provided are composite particles in which rubber particles are attached to the surfaces of spherical organic resin particles, and the rubber particles are fixed to the organic resin particles using silica as a binder.
[0008] Such composite particles can provide effects of soft feel, smooth feel in use, extensibility, and light scattering properties that result in a natural finish.
[0009] The amount of the rubber particles is preferably in the range of 0.1 to 100 parts by mass with respect to 100 parts by mass of the organic resin particles.
[0010] Such an amount of rubber particles can impart a significantly soft feel, smooth feel in use, extensibility, and light scattering properties to the cosmetic, while also achieving low cohesion.
[0011] The amount of silica is preferably in the range of 10 to 1,000 parts by mass relative to 100 parts by mass of the rubber particles.
[0012] With such an amount of silica, the rubber particles can be more reliably fixed to the surfaces of the organic resin particles, and a soft feel can be imparted to the cosmetic.
[0013] The rubber particles are preferably silicone rubber particles.
[0014] In the present invention, such rubber particles can be suitably used.
[0015] The organic resin particles are preferably cellulose particles.
[0016] In the present invention, such organic resin particles can be suitably used.
[0017] Further, the present invention provides a method for producing the above composite particles, comprising the steps of: a method for producing composite particles, comprising adding tetraalkoxysilane to a mixed solution containing the organic resin particles, the rubber particles, a cationic substance, an alkaline substance, and water, and subjecting the resulting mixture to a hydrolysis-condensation reaction; The present invention provides a method for producing composite particles in which the cationic substance is a cationic surfactant and / or a cationic water-soluble polymer.
[0018] In this way, the composite particles of the present invention can be produced.
[0019] The cationic substance is preferably a cationic surfactant or a cationic water-soluble polymer.
[0020] In this way, the composite particles of the present invention can be produced more reliably.
[0021] The amount of the cationic substance blended is preferably in the range of 0.0001 to 2.0 parts by mass per 100 parts by mass of water in the mixed solution.
[0022] In this way, the rubber particles adhere to the surfaces of the organic resin particles, and the adhesion by the silica is sufficient.
[0023] It is also preferable that the amount of the cationic surfactant is in the range of 0.001 to 1.9 parts by mass per 100 parts by mass of water in the mixed solution, and the amount of the cationic water-soluble polymer is in the range of 0.0001 to 1.0 part by mass per 100 parts by mass of water in the mixed solution.
[0024] This ensures that the rubber particles adhere to the surfaces of the organic resin particles more reliably, and that the particles are sufficiently fixed by the silica.
[0025] The present invention also provides a cosmetic containing the above composite particles.
[0026] The cosmetic of the present invention is a cosmetic that has a soft feel, smooth texture when used, spreadability, and light-scattering properties, resulting in a natural finish. [Effects of the Invention]
[0027] According to the present invention, it is possible to provide composite particles that can impart the effects of a soft feel, smooth feel in use, spreadability, and light scattering properties, resulting in a natural finish, a method for producing the same, and a cosmetic preparation containing the composite particles. [Brief explanation of the drawings]
[0028] [Figure 1] 1 is an electron microscope photograph of the composite particles obtained in Example 1. [Figure 2] 1 is an electron microscope photograph of the composite particles obtained in Example 2. [Figure 3] 1 is an electron microscope photograph of the composite particles obtained in Example 3. [Figure 4] 1 is an electron microscope photograph of cellulose particles used in Examples and Comparative Examples. [Figure 5] 1 shows the results of measuring the oil absorption of composite particles of an example and cellulose particles of a comparative example. DETAILED DESCRIPTION OF THE INVENTION
[0029] As described above, there has been a need for the development of composite particles in which rubber particles are attached to the surfaces of organic resin particles, which can impart the effects of a soft feel, smooth sensation in use, extensibility, and light scattering properties, resulting in a natural finish, a method for producing the same, and a cosmetic containing the composite particles.
[0030] As a result of extensive research into the above-mentioned problems, the inventors discovered that composite particles in which rubber particles are fixed to the surfaces of spherical organic resin particles using silica as a binder can impart to cosmetics a soft feel, smooth texture, extensibility, and light-scattering properties that result in a natural finish, and thus completed the present invention.
[0031] That is, the present invention provides composite particles in which rubber particles are attached to the surfaces of spherical organic resin particles, and the rubber particles are fixed to the organic resin particles using silica as a binder.
[0032] The present invention also provides a method for producing the above-mentioned composite particles, which comprises adding tetraalkoxysilane to a mixed liquid containing the organic resin particles, the rubber particles, a cationic substance, an alkaline substance, and water, and subjecting the mixed liquid to a hydrolysis-condensation reaction, and wherein the cationic substance is a cationic surfactant and / or a cationic water-soluble polymer.
[0033] The present invention will be described in detail below, but the present invention is not limited thereto.
[0034] [Composite particles] The composite particles of the present invention are composite particles in which rubber particles are attached to the surfaces of spherical organic resin particles, and the rubber particles are fixed to the organic resin particles using silica as a binder.
[0035] The volume average particle size can be measured by the Coulter counter method (electrical resistance method). The particle size is determined by the particle size of the organic resin particles, the particle size of the rubber particles, and the amount of rubber particles attached to the surface of the organic resin particles.
[0036] [Organic resin particles] The organic resin particles used in the present invention are particles that become the core of composite particles. The organic resin particles can be used alone or in appropriate combinations of two or more types, and as long as they are spherical, any powder that can be substantially used in cosmetics and any particle size within the entire range can be used.
[0037] The organic resin particles have a spherical shape. In this specification, "spherical" means that the particle shape is not only a perfect sphere, but also a deformed sphere in which the average aspect ratio (length of the longest axis / length of the shortest axis) is usually in the range of 1.0 to 4.0, preferably 1.0 to 2.0, more preferably 1.0 to 1.6, and even more preferably 1.0 to 1.4. The particle shape can be confirmed by observing the particles with an optical microscope, an electron microscope, or the like. The particle structure may be either non-porous or porous.
[0038] The volume average particle size is preferably in the range of 0.5 to 50 μm, more preferably 1 to 30 μm. If the particle size is 0.5 μm or more, the effects of providing a smooth feel and silky texture as well as spreadability can be sufficiently obtained, while if it is 50 μm or less, the rough feeling can be reduced. The volume average particle size is measured by the Coulter counter method (electrical resistance method).
[0039] Examples of organic resin particles include particles of polyethylene; polypropylene; polystyrene; divinylbenzene resin; polyvinyl chloride; methacrylic resin; polytetrafluoroethylene; methacrylic-styrene copolymer; polyamide; polycarbonate; polyesters such as polyethylene terephthalate, polybutylene succinate, polyhydroxybutyric acid, and polycaprolactone; cellulose; cellulose derivatives; calcium alginate; phenolic resin; melamine resin; benzoguanamine resin; epoxy resin; and polyurethane.
[0040] When biodegradable properties are desired, examples include particles of polybutylene succinate, polyhydroxybutyrate, polycaprolactone, cellulose, and cellulose derivatives such as cellulose acetate and cellulose acetate propionate. Furthermore, when natural origin is desired, examples include cellulose particles.
[0041] [Rubber particles] The rubber particles used in the present invention are particles attached to the surface of organic resin particles that serve as the core of composite particles. The rubber particles can be used alone or in combination of two or more types, and powders and particles of any particle size that can be substantially used in cosmetics can be used. Furthermore, as long as their geometric form is one that is commonly used in cosmetics, they can be any shape, such as spherical, polyhedral, spindle-shaped, needle-shaped, or plate-shaped, and can be either non-porous or porous.
[0042] The volume average particle size of the rubber particles is preferably smaller than that of the organic resin particles. If the size is smaller than that of the organic resin particles that form the core powder, the powder's soft feel, smooth feel in use, extensibility, light scattering properties, and other properties are fully exhibited. The volume average particle size is preferably in the range of 0.05 to 5 μm, and more preferably 0.1 to 1 μm. The volume average particle size is measured by a laser diffraction / scattering method.
[0043] The rubber constituting the rubber particles is preferably non-sticky, and its rubber hardness, measured using a Type A durometer as specified in JIS K6253, is preferably in the range of 5 to 95, more preferably 10 to 70. A rubber hardness of 5 or higher reduces cohesion and provides the cosmetic with good slipperiness and spreadability, preventing creasing. A rubber hardness of 95 or lower provides a soft feel. The rubber hardness is measured by preparing a test piece with the particle composition and the shape and dimensions specified in JIS K6253.
[0044] Examples of rubber particles include particles of polybutadiene rubber, acrylic rubber, urethane rubber, silicone rubber, fluororubber, etc. Silicone rubber particles are preferred because they tend to provide a soft feel.
[0045] Silicone rubber has the formula -(RSiO 2 / 2 ) a Preferably, the cured product comprises a linear organosiloxane block represented by the formula: -, where R is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms, and a is a positive integer of 5 to 5,000.
[0046] R has 1 to 30 carbon atoms, preferably 1 to 22, and more preferably 1 to 18. Examples of R include alkyl groups such as methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, decyl, undecyl, dodecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, icosyl, henicosyl, docosyl, tricosyl, tetracosyl, and triacontyl; aryl groups such as phenyl, tolyl, and naphthyl; benzyl, fluoro, and the like. Examples of such groups include aralkyl groups such as phenethyl groups; alkenyl groups such as vinyl groups and allyl groups; cycloalkyl groups such as cyclopentyl groups, cyclohexyl groups, and cycloheptyl groups; and hydrocarbon groups in which some or all of the hydrogen atoms bonded to carbon atoms of these groups have been substituted with atoms such as halogen atoms (fluorine atoms, chlorine atoms, bromine atoms, and iodine atoms) and / or substituents such as acryloyloxy groups, methacryloyloxy groups, epoxy groups, glycidoxy groups, and carboxyl groups. Preferred are alkyl groups or phenyl groups having 1 to 18 carbon atoms, and it is preferred that 50 mol % or more of all R groups are methyl groups.
[0047] Silicone rubber is obtained from a curable liquid silicone composition, and its curing can be exemplified by addition reactions, condensation reactions, radical reactions, etc. The curable liquid silicone composition contains a component having reactive groups for the above curing reactions (a component having both reactive groups, or a component having one reactive group and a component having the other reactive group), a curing catalyst, and a radical generator.
[0048] When silicone rubber is produced by curing through an addition reaction, the curable liquid silicone composition may contain (A) an organopolysiloxane having alkenyl groups, (B) an organohydrogenpolysiloxane having silicon-bonded hydrogen atoms, and an addition reaction catalyst.
[0049] The component (A) is represented by the following average composition formula (1): R 1 b R 2 cSiO (4-b-c) / 2 (1) is an organopolysiloxane represented by the formula and having at least two alkenyl groups in one molecule. In the formula, R 1 is, independently of one another, an unsubstituted or substituted monovalent hydrocarbon group having 1 to 30 carbon atoms and no alkenyl group. R 2 is, independently of one another, an alkenyl group having 2 to 6 carbon atoms. b and c are positive numbers satisfying 0 < b < 3, 0 < c ≤ 3, and 0.1 ≤ b + c ≤ 3.
[0050] One kind of the organopolysiloxane represented by the average composition formula (1) may be used alone or two or more kinds may be used in combination.
[0051] R 1 has 1 to 30 carbon atoms, preferably 1 to 22, more preferably 1 to 18. R 1 is a monovalent hydrocarbon group excluding the alkenyl group among those listed for R above, and R 1 is preferably 50 mol% or more methyl groups. R 2 includes vinyl group, allyl group, propenyl group, butenyl group, pentenyl group, hexenyl group, and is preferably vinyl group. b and c are preferably positive numbers satisfying 0 < b ≤ 2.295, 0.005 ≤ c ≤ 2.3, and 0.5 ≤ b + c ≤ 2.3.
[0052] The viscosity of the component (A) at 25°C is preferably 100,000 mm 2 / s or less, more preferably 10,000 mm 2 / s or less. When the viscosity is 100,000 mm 2 / s or less, it is particularly easy to obtain silicone fine particles with a narrow particle size distribution in the preparation of the aqueous dispersion of silicone rubber particles described below. The lower limit of the viscosity is not particularly limited, but it may be 0.7 mm 2 / s or more, particularly 2 mm 2 / s or more. In the present invention, the value of the kinematic viscosity can be the value measured using a capillary viscometer at 25°C.
[0053] The structure of component (A) may be linear, cyclic, or branched, with linear or branched structures with few branching units being particularly preferred. There are no particular restrictions on the bonding position of the alkenyl group, and it may be bonded to a silicon atom on either the side chain or the terminal of the molecule, with bonding to silicon atoms at both terminals of the linear organopolysiloxane being particularly preferred.
[0054] An example of a linear structure is one represented by the following general formula (2).
[0055] [ka] (In the formula, R 1 , R 2 is the same as above, d is a positive number, e is 0 or a positive number, and f is 0, 1, 2, or 3, provided that e and f are numbers that satisfy e+2×f≧2.
[0056] Examples of branched structures include R 1 SiO 3 / 2 Examples of the branched units are those represented by the following general formula (3).
[0057] [ka] (In the formula, R 1 , R 2 is the same as above, g is a positive number, h is 0 or a positive number, i is a positive number, and j is 0, 1, 2, or 3, provided that h and j are numbers that satisfy h+j≧1.
[0058] SiO 4 / 2 An example of a structure branched by the unit is one represented by the following general formula (4).
[0059] [ka] (In the formula, R 1 , R 2is the same as described above, k is a positive number, l is 0 or a positive number, m is a positive number, n is 0, 1, 2, or 3, provided that l and n satisfy l + n ≥ 1.)
[0060] In addition, those represented by the following unit formula (5) and having two or more alkenyl groups per molecule are exemplified.
[0061] [R 1 3SiO 1 / 2 o [R 2 (R 1 )2SiO 1 / 2 p [SiO 4 / 2 q [(OR 3 )SiO 3 / 2 r (5) (In the formula, R 1 , R 2 are the same as described above, R 3 is a hydrogen atom or an unsubstituted monovalent hydrocarbon group having 1 to 6 carbon atoms, o is 0 or a positive number, p is a positive number, q is a positive number, and r is 0 or a positive number.)
[0062] Component (B) is an organohydrogenpolysiloxane represented by the following average composition formula (6) R 4 s H t SiO (4-s-t) / 2 (6) and has at least two hydrogen atoms bonded to silicon atoms (referred to as SiH groups) in one molecule. In the formula, R 4 are, independently of each other, unsubstituted or substituted monovalent hydrocarbon groups having 1 to 30 carbon atoms and not having an alkenyl group. s and t are numbers satisfying 0 < s < 3, 0 < t ≤ 3, and 0.1 ≤ s + t ≤ 3.)
[0063] One kind of the organopolysiloxane represented by the average composition formula (6) may be used alone or two or more kinds may be used in combination.)
[0064] R 4 has 1 to 30 carbon atoms, preferably 1 to 22, more preferably 1 to 18. R 4 is the same monovalent hydrocarbon group as R 1 and preferably 80 mol% or more is a methyl group, more preferably 95% or more is a methyl group. s and t are positive numbers preferably satisfying 0 < s ≦ 2.295, 0.005 ≦ t ≦ 2.3 and 0.5 ≦ s + t ≦ 2.3.
[0065] (B) The viscosity at 25 °C of the component is preferably 100,000 mm 2 / s or less, more preferably 10,000 mm 2 / s or less. When the viscosity is 100,000 mm 2 / s or less, it is particularly easy to obtain silicone fine particles with a narrow particle size distribution in the preparation of the aqueous dispersion of silicone rubber particles described below. The lower limit of the viscosity is not particularly limited, but 0.4 mm 2 / s or more, particularly 2 mm 2 / s or more is sufficient.
[0066] Also, the structure of the (B) component may be linear, cyclic, or branched, but particularly linear or branched is preferred. Also, the bonding position of the hydrogen atom bonded to the silicon atom is not particularly limited and may be bonded to any silicon atom of the side chain and the terminal of the molecule.
[0067] Examples of those having a linear structure include those represented by the following general formula (7).
[0068] [Chemical formula] (In the formula, R 4 is the same as described above, u is a positive number, v is 0 or a positive number, w is 0, 1, 2, or 3, provided that v and w are numbers satisfying v + 2×w ≧ 2.)
[0069] Examples of the branched structure include those represented by the following general formula (8) branched by units of R 4 SiO 3 / 2
[0070] [ka] (In the formula, R 4 is the same as above, x is a positive number, y is 0 or a positive number, z is a positive number, and a1 is 0, 1, 2, or 3, provided that y and a1 are numbers that satisfy y+a1≧1.
[0071] SiO 4 / 2 An example of a structure branched by the unit is one represented by the following general formula (9).
[0072] [ka] (In the formula, R 4 is the same as above, b1 is a positive number, c1 is 0 or a positive number, d1 is a positive number, and e1 is 0, 1, 2, or 3, provided that c1 and e1 are numbers that satisfy c1+e1≧1.
[0073] Further examples include those represented by the following unit formula (10) and having two or more hydrogen atoms bonded to silicon atoms per molecule. [R 4 3SiO 1 / 2 ] f1 [H(R 4 )2SiO 1 / 3 ] g1 [SiO 4 / 2 ] h1 [(OR 5 )SiO 3 / 2 ] i1 (10) In the formula, R 4 is the same as above, and R 5 is a hydrogen atom or an unsubstituted monovalent hydrocarbon group having 1 to 6 carbon atoms, f1 is 0 or a positive number, g1 is a positive number, h1 is a positive number, and i1 is 0 or a positive number.
[0074] As described above, component (A) is an organopolysiloxane having two or more alkenyl groups per molecule, and component (B) is an organohydrogenpolysiloxane having two or more silicon-bonded hydrogen atoms per molecule. However, the combination of an organopolysiloxane (A) having only two alkenyl groups with an organohydrogenpolysiloxane (B) having only two SiH groups is excluded. This is because the combination of an organopolysiloxane having two alkenyl groups as component (A) with an organohydrogensiloxane having two SiH groups as component (B) results in a sticky cured product, making it impossible to obtain a silicone rubber. That is, when component (A) has two alkenyl groups, at least one of components (B) is an organohydrogensiloxane having three or more SiH groups, and when component (B) has two SiH groups, at least one of components (A) is an organosiloxane having three or more alkenyl groups.
[0075] The amount of component (B) relative to component (A) is preferably an amount such that the ratio of the number of SiH groups in component (B) to the number of monovalent alkenyl groups in component (A) is 0.5 to 2, and more preferably an amount such that it is 0.7 to 1.5. When component (B) is blended in an amount such that the ratio of the number of SiH groups falls within the above range, the resulting cured silicone rubber is not sticky and has appropriate reactivity.
[0076] Examples of catalysts for addition reactions include platinum group metal catalysts used in hydrosilylation reactions, such as platinum (including platinum black), rhodium, and palladium; platinum chlorides such as HPtCl·XH2O, HPtCl·XH2O, NaHPtCl·XH2O, KHPtCl·XH2O, NaPtCl·XH2O, KPtCl·XH2O, PtCl·XH2O, PtCl·XH2O, PtCl2, and NaHPtCl·XH2O (wherein X is an integer of 0 to 6, preferably 0 or 6); chloroplatinic acid; and platinum chlorides such as HPtCl·XH2O, HPtCl·XH2O, PtCl·XH2O, PtCl·XH2O, and NaHPtCl·XH2O (wherein X is an integer of 0 to 6, preferably 0 or 6). Examples of such catalysts include acid salts, alcohol-modified chloroplatinic acid, platinum chloride, complexes of chloroplatinic acid and olefins, complexes of chloroplatinic acid and vinyl group-containing siloxanes, complexes of platinum and vinyl group-containing siloxanes, platinum black, platinum group metals such as palladium supported on a support such as alumina, silica, or carbon, rhodium-olefin complexes, and chlorotris(triphenylphosphine)rhodium (Wilkinson's catalyst). These catalysts may be used alone or in combination of two or more.
[0077] The amount of platinum group metal catalyst to be added may be an amount effective as a hydrosilylation reaction catalyst, and is an amount such that the amount of platinum group metal in the platinum group metal catalyst relative to the total amount of components (A) and (B), converted to mass, is typically about 0.1 to 500 ppm, preferably about 0.5 to 200 ppm, and more preferably about 1 to 100 ppm.
[0078] The silicone rubber may contain silicone oil, organosilane, inorganic powder, organic powder, antioxidant, and the like.
[0079] In the present invention, the density of rubber particles attached to the surface of organic resin particles is not particularly limited. That is, the rubber particles may be sparsely attached to the surface of the organic resin particles, or may be tightly coated and attached to the surface of the organic resin particles. Furthermore, the rubber particles may be attached in an aggregated state, or may be attached to rubber particles that tightly coat and attach to the surface of the organic resin particles. The density and state of attachment of the rubber particles can be confirmed using an electron microscope.
[0080] The amount of rubber particles is not particularly limited, but when a more pronounced soft feel, smooth feel in use, extensibility, and light scattering property are desired, the amount is preferably 0.1 parts by mass or more, more preferably 0.2 parts by mass or more, even more preferably 0.5 parts by mass or more, and even more preferably 0.8 parts by mass or more, relative to 100 parts by mass of organic resin particles. Furthermore, from the viewpoint of obtaining low cohesion, smooth feel in use, and extensibility, the amount is preferably 100 parts by mass or less, more preferably 50 parts by mass or less, even more preferably 20 parts by mass or less, and even more preferably 10 parts by mass or less, relative to 100 parts by mass of organic resin particles.
[0081] [silica] The silica used in the present invention is a binder for the organic resin particles and the rubber particles. By using silica as a binder to form composite particles in which rubber particles are attached to the surfaces of organic resin particles, the rubber particles are fixed to the surfaces of the organic resin particles and are less likely to fall off from the surfaces of the organic resin particles, which makes it possible to impart a better feel when used.
[0082] The silica may be in the form of a film or particles, and may be attached partially or entirely to the surface of the organic resin particles and / or the surface of the rubber particles.
[0083] Silica has a structure consisting of SiO2 units, and although there are no particular restrictions on the method for producing it, it is preferable to use silica obtained by the hydrolysis and condensation reaction of tetraalkoxysilane, as in the production method described below.
[0084] The amount of silica is not particularly limited, but in order to fix the rubber particles to the surfaces of the organic resin particles, it is preferably 10 parts by mass or more, more preferably 20 parts by mass or more, even more preferably 30 parts by mass or more, and even more preferably 50 parts by mass or more, per 100 parts by mass of the rubber particles. Also, from the viewpoint of obtaining a soft feel, it is preferably 1000 parts by mass or less, more preferably 800 parts by mass or less, even more preferably 500 parts by mass or less, and even more preferably 350 parts by mass or less, per 100 parts by mass of the rubber particles.
[0085] [Surface treatment agent] The composite particles of the present invention may have their surfaces treated with a silylating agent, silicone oil, waxes, paraffins, organic fluorine compounds, surfactants, or the like in order to impart or improve water repellency or improve dispersibility in oil agents.
[0086] [Method of manufacturing composite particles] The composite particles of the present invention, which are formed by adhering rubber particles to the surfaces of organic resin particles using the silica of the present invention as a binder, can be obtained by adding tetraalkoxysilane to a mixture of organic resin particles, rubber particles, a cationic substance (cationic surfactant and / or cationic water-soluble polymer), an alkaline substance, and water, and then causing a hydrolysis and condensation reaction.
[0087] [Organic resin particles and rubber particles] The organic resin particles and rubber particles are those explained in the section on composite particles, but those prepared in advance as an aqueous dispersion or an aqueous dispersion synthesized in water may also be used.
[0088] In order to disperse the organic resin particles and rubber particles in water, a surfactant and a water-soluble polymer may be blended into the aqueous dispersion. When an aqueous dispersion synthesized in water is used, the surfactant and the water-soluble polymer used during synthesis may be contained in the aqueous dispersion.
[0089] The surfactant is not particularly limited, but a nonionic surfactant, a cationic surfactant, and / or an amphoteric surfactant is preferred.
[0090] Examples of nonionic surfactants include polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyethylene glycol fatty acid esters, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbit fatty acid esters, glycerin fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyglycerin fatty acid esters, propylene glycol fatty acid esters, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid esters, polyoxyethylene alkylamines, polyoxyethylene fatty acid amides, polyoxyethylene-modified organopolysiloxanes, and polyoxyethylene polyoxypropylene-modified organopolysiloxanes.
[0091] Examples of cationic surfactants include, but are not limited to, alkyltrimethylammonium salts, dialkyldimethylammonium salts, polyoxyethylenealkyldimethylammonium salts, dipolyoxyethylenealkylmethylammonium salts, tripolyoxyethylenealkylammonium salts, alkylbenzyldimethylammonium salts, alkylpyridinium salts, monoalkylamine salts, and monoalkylamidoamine salts.
[0092] Examples of amphoteric surfactants include alkyldimethylamine oxide, alkyldimethylcarboxybetaine, alkylamidopropyldimethylcarboxybetaine, alkylhydroxysulfobetaine, and alkylcarboxymethylhydroxyethylimidazolinium betaine.
[0093] The water-soluble polymer is not particularly limited, but a nonionic water-soluble polymer and / or a cationic water-soluble polymer is preferred.
[0094] Examples of nonionic water-soluble polymers include polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone, polyethylene oxide, polymethyl vinyl ether, polyisopropylacrylamide, methyl cellulose, hydroxypropyl methyl cellulose, starch, guar gum, and xanthan gum.
[0095] Examples of cationic water-soluble polymers include polymers of dimethyldiallylammonium chloride, polymers of vinylimidazoline, polymers of methylvinylimidazolium chloride, polymers of ethyl acrylate trimethylammonium chloride, polymers of ethyl methacrylate trimethylammonium chloride, polymers of acrylamidopropyl trimethylammonium chloride, polymers of methacrylamide propyl trimethylammonium chloride, epichlorohydrin / dimethylamine polymers, polymers of ethyleneimine, quaternized polymers of ethyleneimine, polymers of allylamine hydrochloride, polylysine, cationic starch, cationized cellulose, chitosan, and derivatives thereof obtained by copolymerizing these with monomers having a nonionic group or an anionic group.
[0096] When silicone rubber particles are used as the rubber particles, it is preferable to use an aqueous dispersion of silicone rubber particles.
[0097] There are no particular limitations on the method for preparing the aqueous dispersion of silicone rubber particles, and any known method for preparing an aqueous dispersion of silicone rubber particles can be used. For example, the aqueous dispersion can be produced by emulsifying the curable liquid silicone composition described in the composite particle section in water using the surfactant and / or the water-soluble polymer described above, and then subjecting it to a curing reaction.
[0098] When making an aqueous dispersion of silicone rubber particles by curing through addition reaction, the method can be mentioned in which the curable liquid silicone composition is made up of the organopolysiloxane (A) with alkenyl groups and the organohydrogenpolysiloxane (B) with silicon-bonded hydrogen atoms, as explained in the composite particle section, and the surfactant and / or the water-soluble polymer and water are added to emulsify, and after emulsion is formed, a platinum catalyst is added to carry out addition polymerization.It is also possible to use a method in which a platinum group metal catalyst is mixed in advance with the curable liquid silicone composition, but in this case, it is necessary to prevent the reaction from proceeding before the emulsification is completed by adjusting the temperature, adjusting the amount of catalyst, or adding a regulator, etc.
[0099] In the mixed solution containing organic resin particles, rubber particles, a cationic substance, an alkaline substance, and water, the organic resin particles are preferably present in an amount of 3 to 150 parts by mass, more preferably 5 to 50 parts by mass, per 100 parts by mass of water. An amount of 3 parts by mass or more improves production efficiency, while an amount of 150 parts by mass or less prevents the dynamic viscosity of the aqueous dispersion (mixed solution) from becoming too high, making it easier for the rubber particles to adhere. The amount of rubber particles should be determined so that they adhere to the surfaces of the organic resin particles.
[0100] [Cationic substances] The cationic surfactant and / or cationic water-soluble polymer added during the production of composite particles promotes the condensation reaction of hydrolyzed tetraalkoxysilane to produce silica. It is also thought that they have the effect of adsorbing the produced silica onto the surfaces of organic resin particles and rubber particles, and also adsorbing the organic resin particles to the rubber particles.
[0101] The cationic surfactant and the cationic water-soluble polymer may be used alone or in combination of two or more. It is preferable to use both the cationic surfactant and the cationic water-soluble polymer because this allows a large amount of rubber particles to adhere to the surface of the organic resin particles.
[0102] Examples of cationic surfactants include those mentioned above in the description of the method for producing composite particles, but alkyltrimethylammonium salts are preferred, and among these, lauryltrimethylammonium salt and cetyltrimethylammonium salt are more preferred.
[0103] Examples of cationic water-soluble polymers include those mentioned above in the description of the method for producing composite particles, but among them, polymers that do not use monomers having nonionic groups are preferred, and polymers of dimethyldiallylammonium chloride are more preferred.
[0104] The amount of cationic substance (cationic surfactant and / or cationic water-soluble polymer) is preferably 0.0001 to 2.0 parts by mass, more preferably 0.001 to 1.0 part by mass, per 100 parts by mass of water in the mixed solution. If the amount is 0.0001 to 2.0 parts by mass, the rubber particles adhere to the surfaces of the organic resin particles, and the fixation by silica is sufficient.
[0105] Furthermore, the amounts of the cationic surfactant and the cationic water-soluble polymer are preferably 0.001 to 1.9 parts by mass and 0.0001 to 1.0 part by mass, more preferably 0.01 to 1.0 part by mass, and 0.001 to 0.5 part by mass, and even more preferably 0.05 to 0.5 part by mass, and 0.01 to 0.2 part by mass, relative to 100 parts by mass of water blended into the mixed liquid.
[0106] As described above, when a cationic surfactant and / or cationic water-soluble polymer is used to disperse organic resin particles and rubber particles in water in advance to prepare an aqueous dispersion, if the cationic surfactant and / or cationic water-soluble polymer is not of the desired type and amount, then additional addition is required; if the desired type and amount are achieved, then additional addition is not necessary.
[0107] The cationic surfactant and / or cationic water-soluble polymer may be blended in advance in a mixed liquid of organic resin particles, rubber particles, an alkaline substance, and water, or may be added simultaneously with the addition of the tetraalkoxysilane described below.
[0108] [Alkaline substances] Alkaline substances are catalysts for the hydrolysis and condensation reactions of tetraalkoxysilanes.
[0109] The alkaline substance is not particularly limited, and examples thereof include alkali metal hydroxides such as potassium hydroxide, sodium hydroxide, and lithium hydroxide; alkaline earth metal hydroxides such as calcium hydroxide and barium hydroxide; alkali metal carbonates such as potassium carbonate and sodium carbonate; ammonia; tetraalkylammonium hydroxides such as tetramethylammonium hydroxide and tetraethylammonium hydroxide; and amines such as monomethylamine, monoethylamine, monopropylamine, monobutylamine, monopentylamine, dimethylamine, diethylamine, trimethylamine, triethanolamine, and ethylenediamine. Among these, ammonia is the most suitable because it can be easily removed from the resulting composite particle powder by volatilization. Commercially available aqueous ammonia solutions can be used as the ammonia.
[0110] The amount of alkaline substance added is preferably such that the pH of a mixture of at least the alkaline substance, organic resin particles, rubber particles, cationic surfactant and / or cationic water-soluble polymer, and water is 9.0 to 12.0, more preferably 9.5 to 11.5. Adding an amount of alkaline substance that results in a pH of 9.0 to 12.0 allows the hydrolysis and condensation reaction of the tetraalkoxysilane to proceed sufficiently, and the rubber particles to adhere to the surfaces of the organic resin particles satisfactorily.
[0111] [Tetraalkoxysilane] In the method for producing composite particles of the present invention, tetraalkoxysilane is added to a mixture of organic resin particles, rubber particles, a cationic surfactant and / or a cationic water-soluble polymer, an alkaline substance, and water.
[0112] Tetraalkoxysilane undergoes hydrolysis and condensation reaction with the catalytic action of alkaline substances to become silica. After the addition of tetraalkoxysilane, the silica produced by the hydrolysis and condensation reaction of tetraalkoxysilane is formed on the surface of organic resin particles and / or rubber particles, and at the same time, the rubber particles are adsorbed onto the surface of the organic resin particles, resulting in the rubber particles being fixed to the surface of the organic resin particles by silica.
[0113] Tetraalkoxysilane is Si(OR 6 )4. R in the formula 6 is an alkyl group. The alkyl group is preferably an alkyl group having 1 to 6 carbon atoms. Specific examples include methyl, ethyl, propyl, butyl, pentyl, and hexyl groups, but from the viewpoint of reactivity, methyl and ethyl groups are more preferred. That is, tetramethoxysilane and tetraethoxysilane are more preferred, and tetramethoxysilane is even more preferred. Tetraalkoxysilanes in which some or all of the alkoxy groups have been hydrolyzed may be used. Furthermore, tetraalkoxysilanes in which some of the alkoxy groups have been condensed may also be used.
[0114] The amount of tetraalkoxysilane added is not particularly limited, but it is sufficient that the amount of silica after the hydrolysis and condensation reaction is the same as the amount of the rubber particles described above.
[0115] [Hydrolysis and condensation reaction] A hydrolysis and condensation reaction is carried out by adding tetraalkoxysilane to a stirred mixture of organic resin particles, rubber particles, a cationic surfactant and / or cationic water-soluble polymer, an alkaline substance, and water. The tetraalkoxysilane may be added dropwise, dissolved or dispersed in water, or mixed with a water-soluble organic solvent such as alcohol.
[0116] In order to prevent aggregation of the organic resin particles and the rubber particles, gentle stirring is preferably performed using paddle blades, propeller blades, swept-back blades, anchor-type blades, etc., but stirring intensity sufficient to disperse the organic resin particles, rubber particles, and tetraalkoxysilane in the mixed liquid is required.
[0117] The temperature when the tetraalkoxysilane is added to the mixed solution is preferably 0 to 60° C., more preferably 0 to 39° C. If the temperature is 0° C. or higher, there is no risk of the mixed solution solidifying, and if the temperature is 60° C. or lower, there is no risk of the resulting particles agglomerating.
[0118] A water-soluble organic solvent such as alcohol may be added to the mixture for the purposes of improving the dispersibility of the organic resin particles and rubber particles in water and for the purposes of uniformly adhering the rubber particles to the surfaces of the organic resin particles.
[0119] When the particles are surface-treated with a silylating agent, the treatment may be carried out on the finished composite particles, or the silylating agent may be added to the mixture after adding the tetraalkoxysilane. Examples of the silylating agent include trimethylmethoxysilane, trimethylsilanol, hexamethyldisilazane, methyltrimethoxysilane, and phenyltrimethoxysilane.
[0120] After adding the tetraalkoxysilane, it is recommended to continue stirring for a while until the hydrolysis and condensation reaction is complete. To accelerate the reaction, the mixture may be heated to 40-100°C or an alkaline substance may be added. If necessary, an acidic substance may then be added to neutralize the mixture.
[0121] After the hydrolysis and condensation reaction, water is removed. This can be done, for example, by heating the post-reaction mixture under normal or reduced pressure. Specific methods include removing water by leaving the mixture stationary under heating, removing water while stirring and fluidizing the mixture under heating, spraying and dispersing the mixture in a hot air stream using a spray dryer, or using a fluidized heat medium. As a pretreatment for this operation, the mixture can be concentrated by methods such as thermal dehydration, pressure filtration, centrifugation, and decantation, and, if necessary, washing the mixture with water or alcohol.
[0122] If the powder obtained by removing water from the mixed liquid after the reaction is aggregated, it is advisable to disintegrate or classify it using a pulverizer such as a jet mill, a ball mill, or a hammer mill.
[0123] [Cosmetics containing composite particles] The cosmetic of the present invention is characterized by containing the composite particles. The cosmetic of the present invention will be described in detail below. In the present invention, the names of ingredients may be written in cosmetic name or International Nomenclature of Cosmetic Ingredients (INCI). When the cosmetic name and INCI correspond, the English name may be omitted.
[0124] The present invention is applicable to various types of cosmetics, but particularly preferred are cosmetics applied to the skin, such as skin care cosmetics, makeup cosmetics, antiperspirant cosmetics, and UV protection cosmetics, and cosmetics applied to the hair, such as hair cosmetics. Examples of skin care cosmetics include lotions, emulsions, creams, cleansers, packs, oil liquids, massage products, beauty serums, beauty oils, detergents, deodorants, hand creams, lip balms, and wrinkle concealers. Examples of makeup cosmetics include makeup bases, concealers, face powders, powder foundations, eye color, eye shadow, mascara, eyeliner, eyebrow pencils, and lipsticks. Examples of antiperspirant cosmetics include roll-on, cream, solution, and stick-type antiperspirant cosmetics. Examples of UV protection cosmetics include sunscreen oils, sunscreen emulsions, and sunscreen creams. Examples of hair cosmetics include shampoos, rinses, treatments, and setting agents.
[0125] The cosmetic preparation of the present invention may be in any form, for example, a powder, an oily liquid, a water-in-oil emulsion, an oil-in-water emulsion, a non-aqueous emulsion, or a multiple emulsion such as a W / O / W type or an O / W / O type. The cosmetic preparation of the present invention may be in a variety of forms, including liquid, emulsion, cream, solid, paste, gel, powder, pressed, multi-layered, mousse, spray, stick, pencil, etc.
[0126] There are no particular limitations on the cosmetic product as long as it contains the essential ingredients, but it can be applied to, for example, skin care products, liquid foundations, powder foundations, concealers, lipsticks, and various other products to which sunscreen properties have been added.
[0127] The cosmetic preparation of the present invention may contain various components used in ordinary cosmetic preparations. For example, it may contain (1) an oil, (2) an aqueous component, (3) a surfactant, (4) a powder other than that of the present invention, (5) a composition comprising a crosslinked organopolysiloxane and an oil that is liquid at room temperature, (6) a film-forming agent, (7) an ultraviolet absorbing / scattering agent, and (8) other additives. These may be used alone or in appropriate combinations of two or more.
[0128] (1) Oil The oil may be volatile or non-volatile, and may be solid, semi-solid, or liquid at room temperature (25°C). Examples of the oil include silicone oil, silicone wax, natural animal and vegetable oils and semi-synthetic oils and fats, hydrocarbon oil, higher alcohol, fatty acid, ester oil, fluorine-based oil, and ultraviolet absorber.
[0129] The composite particles of the present invention have rubber particles on the surface that have high oil absorption properties for various liquid oils, and by absorbing the liquid oils, they are able to suppress the stickiness and glare of the oils, thereby significantly improving the feel when used. Furthermore, the viscosity of the oil can be adjusted, and various properties such as a mousse-like consistency can be obtained. The composite particles used in the present invention can be used as a cosmetic ingredient as is, but in order to achieve a desired feel when used in a cosmetic, an oily gel composition containing the composite particles and the oily component can be separately prepared, and a cosmetic containing the composite particles and the oily component can be prepared in the form of this oily gel composition.
[0130] Silicone oil Examples of silicone oils include alkyl-modified silicones such as dimethicone (INCI), trisiloxane (INCI), methyl trimethicone (INCI), ethyl trisiloxane (INCI), ethyl methicone (INCI), and hexyl dimethicone (INCI), long-chain alkyl-modified silicones such as caprylyl methicone (INCI), low- to high-viscosity linear or branched organopolysiloxanes such as phenyl trimethicone (INCI), diphenyl dimethicone (INCI), diphenylsiloxyphenyl trimethicone (INCI), tetraphenyldimethyldisiloxane (INCI), and methylhydrogen polysiloxane, cyclotetrasiloxane (INCI), and cyclopentasiloxane. Examples of such silicone rubbers include cyclic organopolysiloxanes such as cyclohexasiloxane (INCI), amino-modified organopolysiloxanes such as amodimethicone (INCI), aminopropyl dimethicone (INCI), pyrrolidone-modified organopolysiloxanes such as PCA dimethicone (INCI), pyrrolidone carboxylic acid-modified organopolysiloxanes, gummy dimethylpolysiloxanes with a high degree of polymerization, gummy amino-modified organopolysiloxanes, and gummy dimethylsiloxane-methylphenylsiloxane copolymers, as well as low-viscosity organopolysiloxane solutions of silicone gums and rubbers, amino acid-modified silicones, fluorine-modified silicones, silicone resins, and silicone resin solutions.
[0131] Examples of commercially available silicone oils include KF-96L-1cs, KF-96L-1.5cs, KF-96L-2cs, KF-96A-6cs, KF-4422, KF-54, KF-54HV, KF-56A, and KF-995 manufactured by Shin-Etsu Chemical Co., Ltd.
[0132] Solid oily ingredients In the present invention, when it is desired to solidify the cosmetic, it is preferable to blend an oily component that is solid at 25° C. The oily component that is solid at 25° C. is preferably one that has a melting point of 40° C. or higher, more preferably 60 to 110° C., and examples thereof include waxes, hydrocarbons, esters, higher alcohols, and higher fatty acids, and is not particularly limited as long as it is a raw material that can be normally blended into cosmetics.
[0133] Specifically, vegetable waxes such as carnauba wax (INCI: Copernicia Cerifera (Carnauba) Wax), sugarcane wax, candelilla wax (INCI: Euphorbia Cerifera (Candelilla) Wax), refined candelilla wax, rice wax, Japan wax, jojoba wax, kapok wax, rice bran wax, white bayberry fruit wax, shea butter, cacao butter, Japan wax (INCI: Rhus Sucedanea Fruit Wax), montan wax (INCI: Montan Wax), hydrogenated castor oil isostearate, beeswax, beef tallow, beef bone fat, lard (INCI: Lard), and horse fat (INCI: Horse Fat). animal waxes such as lambs' fat, mutton tallow, lanolin (INCI: Lanolin), butterbur, shellac wax, and spermaceti; semi-synthetic waxes such as lanolin esters, lanolin fatty acid esters, and beeswax acid esters; hydrogenated oils such as hydrogenated castor oil and hydrogenated coconut oil; hydrocarbon waxes such as solid paraffin, polyethylene, ceresin, ozokerite, and microcrystalline wax; wax esters such as synthetic beeswax; amino acid stearyl alcohols such as dioctyldodecyl lauroyl glutamate, dioctyldodecyl lauroyl glutamate, and dioctyldodecyl lauroyl glutamate; fatty acids such as stearic acid and behenic acid; and silicone waxes such as acrylic silicone resins of acrylic-silicone graft or block copolymers (acrylic-silicone graft copolymers: KP-561P, 562P, etc., manufactured by Shin-Etsu Chemical Co., Ltd.), or derivatives thereof, and it is preferable to use one or more waxes selected from these.
[0134] Natural animal and vegetable oils and semi-synthetic oilsNatural animal and vegetable oils and semi-synthetic oils, アボガド oil (: Indicates the name (INCI: Persea Gratissima (Avocado) Oil)), アマニ Oil (: Indicates the name (INCI: Linum Usitatissimum (Linseed) Seed Oil)), アーモンドoil(:Name(INCI:Prunus Amygdalus Dulcis (Sweet Almond) Oil)), エゴマoil(Name), オリーブoil(:Name(INCI:Olea Europaea (Olive) Fruit Oil)), アメリカガヤ Oil (: Indicates the name (INCI: Torreya Californica (California Nutmeg) Oil), Koushiga Oil (INCI: Cymbopogon Nardus (Citronella) Oil), Kaya Seed Oil (INCI: Torreya Nucifera Seed Oil), Kiownin Oil (INCI: Kyounin Yu), Komugi Germ Oil (INCI: Triticum Vulgare (Wheat) Germ Oil), Goma Oil (INCI: Sesamum Indicum (Sesame) Seed Oil), Komugi Germ Oil (INCI: Triticum Vulgare (Wheat) Germ Oil), Kome Germ Oil (INCI: Oryza Sativa (Rice) Germ Oil), Comed Oil (INCI: Oryza Sativa (Rice) Bran Oil), Sazan Oil (INCI: Camellia Kissi Seed Oil), Saffron Oil (INCI: Carthamus Tinctorius (Safflower) Seed Oil), Daizu Oil (INCI: Glycine Soja (Soybean) Oil), Chiya Oil (INCI: Camellia Sinensis Seed Oil), Tsubaki Oil (INCI: Camellia Japonica Seed Oil), Evening Primrose Oil (INCI: Oenothera Biennis (Evening Primrose)Oil), Nataneh Oil (Indication Name), Toumolokoshi Germ Oil (Indication Name (INCI: Zea Mays (Corn) Germ Oil)), Komugi Germ Oil (Indication Name (INCI: Triticum Vulgare (Wheat) Germ Oil)), etc. Germ Oil, Parsik Oil (Indication Name), Parm Oil (Indication Name (INCI: Elaeis Guineensis (Palm) Oil)), Parm Kernel Oil (Indication Name (INCI: Elaeis Guineensis (Palm) Kernel Oil)), Himasi Oil (Indication Name (INCI: Ricinus Communis (Castor) Seed Oil)), Himasi Oil (Indication Name (INCI: Helianthus Annuus (Sunflower) Seed Oil), Budo Seed Oil(INCI: Vitis Vinifera (Grape) Seed Oil), Hohoba Seed Oil(INCI: Simmondsia Chinensis (Jojoba) Seed Oil), Macadamia Seed Oil(INCI: Macadamia Ternifolia Seed Oil), Medowfoam Oil(INCI: Limnanthes Alba (Meadowfoam) Seed Oil), Mianyang Oil(INCI: Gossypium Herbaceum (Cotton) Seed Oil), Yashi Oil(INCI: Cocos Nucifera (Coconut) Oil), Pinot Oil(INCI: Arachis Hypogaea (Peanut) Oil)) などの natural vegetable oil, サメ liver oil (: Indicates the name (INCI: Shark Liver Oil)), タラ liver oil (: Indicates the name (INCI: Cod Liver Oil)), cod liver oil (: Indicates the name (INCI: Fish Liver Oil)), タートル Oil (: Indicates the name (INCI: Turtle) Oil)), mink oil (: Indicated name (INCI: Mink Oil)), egg oil (: Indicated name (INCI: Egg Oil)) natural animal oil, water-added coconut oil (: Indicated name (INCI: Hydrogenated Coconut Oil)), liquid ラノリン (: Indicated name (INCI: Lanolin)and semi-synthetic oils and fats such as synthetic oils.
[0135] Hydrocarbon oil Examples of hydrocarbon oils include linear or branched hydrocarbon oils, and may be volatile or non-volatile hydrocarbon oils. Specific examples include isoparaffins such as olefin oligomers (INCI), (C13,14) isoparaffin (INCI), isododecane (INCI), undecane (INCI), dodecane (INCI), isohexadecane (INCI), hydrogenated polyisobutene (display name (INCI: Hydrogenated Polyisobutene)), squalane (INCI), mineral oil (INCI), palm alkanes (INCI), and (C13-15) alkanes (INCI).
[0136] Higher alcohols Examples of higher alcohols include alcohols having preferably 6 or more carbon atoms, more preferably 10 to 30. Specific examples of higher alcohols include lauryl alcohol (INCI), myristyl alcohol (INCI), palmityl alcohol (INCI), stearyl alcohol (INCI), behenyl alcohol (INCI), oleyl alcohol (INCI), isostearyl alcohol (INCI), octyldodecanol (INCI), cholesterol (INCI), phytosterols (INCI), and batyl alcohol (INCI).
[0137] Ester oil Examples of ester oils include n-alkyl glycol monoisostearates such as diisobutyl adipate (label name (INCI: Diisobutyl Adipate)), dihexyldecyl adipate (label name (INCI: Diheptylundecyl Adipate)), and isostearyl isostearate (label name (INCI: Isostearyl Isostearate)), isocetyl isostearate (label name (INCI: Isocetyl Isostearate)), trimethylolpropane triisostearate (label name (INCI: Trimethylolpropane Triisostearate)), glycol diethylhexanoate (label name (INCI: Glycol Diethylhexanoate)), cetyl ethylhexanoate (label name (INCI: Cetyl Ethylhexanoate)), and trimethylolpropane triethylhexanoate (label name (INCI: Trimethylolpropane Triethylhexanoate), pentaerythrityl tetraethylhexanoate (label name (INCI: Pentaerythrityl Tetraethylhexanoate)), cetyl octanoate (label name (INCI: Cetyl Ethylhexanoate)), octyldodecyl stearoyloxystearate (label name (INCI: Octyldodecyl Stearoyl Stearate)), and other octyldodecyl esters, oleyl oleate (label name (INCI: Oleyl Oleate)), octyldodecyl oleate (label name (INCI: Octyldodecyl Oleate)), decyl oleate (label name (INCI: Decyl Oleate)), neopentyl glycol dioctanoate (label name (INCI: Neopentyl Glycol Diethylhexanoate)), neopentyl glycol dicaprate (label name (INCI: Neopentyl Glycol Dicaprate), Diisostearyl Malate (Indication Name (INCI: Diisostearyl Malate)), Triethyl Citrate (Indication Name (INCI: Triethyl Citrate)Citrate), Diethylhexyl succinate (InCI: Diethylhexyl Succinate), Amyl acetate (InCI: Amyl Acetate), Ethyl acetate (InCI: Etyl 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 (label name (INCI: Isononyl Isononanoate)), isotridecyl isononanoate (label name (INCI: Isotridecyl Isononanoate)), isopropyl palmitate (label name (INCI: Isopropyl Palmitate)), ethylhexyl palmitate (label name (INCI: Ethylhexyl Isopalmitate)), hexyldecyl palmitate (label name (INCI: Isocetyl Palmitate, Hexyldecyl Palmitate)), and other palmitic acid esters, cholesteryl hydroxystearate (label name (INCI: Cholesteryl Hydroxystearate)), isopropyl myristate (label name (INCI: Isopropyl Myristate)), octyldodecyl myristate (label name (INCI: Octyldodecyl Myristate), myristyl myristate (Indication name (INCI: Myristyl Myristate)), myristate esters such as ethylhexyl laurate (Indication name (INCI: Ethylhexyl Laurate)), hexyl laurate (Indication name (INCI: HexylLaurate), dioctyldodecyl lauroyl glutamate (label name (INCI: Dioctyldodecyl Lauroyl Glutamate)), lauroyl sarcosine isopropyl ester (label name (INCI: Isopropyl Lauroyl Sarcosinate)), and coconut (caprylic / capric acid) (label name (INCI: Coco-Caprylate·Caprate)).
[0138] Furthermore, among ester oils, examples of glyceride oils include triethylhexanoin (INCI), tri(caprylic / capric)glyceryl (:display name (INCI: Caprylic / Capric Triglyceride)), cocoglyceryl (INCI), (caprylic / capric / succinic) triglyceryl (:display name (INCI: Caprylic / Capric / Succinic Triglyceride)), and (caprylic / capric) glycerides (:display name (INCI: Caprylic / Capric Glycerides)).
[0139] Fluorine-based oils Examples of fluorine-based oils include perfluorodecalin (INCI), perfluorononyl dimethicone (INCI), and perfluoromethylcyclopentane (INCI).
[0140] UV absorber UV absorbers include oxybenzone-1 (label name (INCI: Benzophenone-1)), oxybenzone-2 (label name (INCI: Benzophenone-2)), oxybenzone-3 (label name (INCI: Benzophenone-3)), oxybenzone-4 (label name (INCI: Benzophenone-4)), oxybenzone-5 (label name (INCI: Benzophenone-5)), oxybenzone-6 (label name (INCI: Benzophenone-6)), oxybenzone-9 (label name (INCI: Benzophenone-9)), homosalate (INCI), octocrylene (INCI), t-butyl methoxydibenzoylmethane (label name (INCI: Butyl Methoxydibenzoylmethane)), and ethylhexyl salicylate (label name (INCI: Ethylhexyl Salicylate), Diethylamino Hydroxybenzoyl Hexyl Benzoate (Incidium Hydroxybenzoyl Hexyl Benzoate), Polysilicone-15 (Incidium), Dimethoxybenzylidene Dioxoimidazolidine Octyl Propionate (Incidium Ethylhexyl Dimethoxybenzylidene Dioxoimidazolidine Propionate), Terephthalylidene Dicamphor Sulfonic Acid (Incidium Terephthalylidene Dicamphor Sulfonic Acid), Ethylhexyl Triazone (Incidium), Bis(trimethylsiloxy)silylisopentyl Methyl Trimethoxycinnamate (Incidium Isopentyl Trimethoxycinnamate Trisiloxane), Drometrizole Trisiloxane (Incidium), Ethylhexyl Dimethyl PABA (Incidium Ethylhexyl Dimethyl PABA), isopropyl paramethoxycinnamate (INCI: Isopropyl Methoxycinnamate), ethylhexyl methoxycinnamate (INCI: EthylhexylExamples of other benzotriazolyl compounds include methylbenzoate (INCI), ...
[0141] (2)Aqueous component The aqueous component is not particularly limited as long as it is an aqueous component that can be typically incorporated into cosmetics. Specific examples include water, lower alcohols preferably having 2 to 5 carbon atoms such as ethanol (INCI: Alcohol) and isopropanol (INCI: Isopropyl Alcohol), and sugar alcohols such as sorbitol (INCI), maltose (INCI), and xylitol (INCI). In addition, polyhydric alcohols such as BG (: Display name (INCI: Butylene Glycol)), PG (: Display name (INCI: Propylene Glycol)), DPG (: Display name (INCI: Dipropylene Glycol)), pentylene glycol (INCI), 1,10-decanediol (INCI), octanediol (INCI), 1,2-hexanediol (INCI), erythritol (INCI), glycerin (INCI), diglycerin (INCI), and polyethylene glycol; glucose (INCI), glyceryl glucoside (INCI), betaine (INCI), sodium chondroitin sulfate (: Display name (INCI: Sodium Chondroitin Sulfate)), and sodium PCA (: Display name (INCI: Sodium Examples of moisturizing agents include PCA), methyl gluceth-10 (INCI), methyl gluceth-20 (INCI), hyaluronic acid, egg yolk lecithin, soybean lecithin, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylglycerol, phosphatidylinositol, and sphingophospholipids.
[0142] (3) Surfactants Surfactants include nonionic, anionic, cationic, and amphoteric surfactants, but are not particularly limited; any surfactant commonly used in cosmetics can be used. Among these surfactants, one or more selected from non-crosslinked silicone surfactants or crosslinked silicone surfactants are preferred because they can produce stable cosmetics. In either case, the amount of surfactant blended is preferably 0.1 to 20% by mass of the total cosmetic. A content of 0.1% or more ensures sufficient dispersion and emulsification functions, while a content of 20% by mass or less is preferred because it prevents the cosmetic from feeling sticky after use. The HLB of the surfactant is not limited, but is preferably 2 to 14.5 to maintain the water resistance of the cosmetic.
[0143] The non-crosslinked silicone surfactant is one in which some of the methyl groups in a linear or branched silicone main chain have been substituted with hydrophilic groups such as polyethylene glycol or polyglycerin, and specifically, linear or branched polyoxyethylene-modified organopolysiloxanes, linear or branched polyoxyethylene-polyoxypropylene-modified organopolysiloxanes, linear or branched polyoxyethylene-alkyl-co-modified organopolysiloxanes, linear or branched polyoxyethylene-polyoxypropylene-alkyl-co-modified organopolysiloxanes, linear or branched polyglycerin-modified organopolysiloxanes, linear or branched polyglycerin-alkyl-co-modified organopolysiloxanes, and linear or branched pyrrolidone-modified organopolysiloxanes are preferred.
[0144] Examples include PEG-11 methyl ether dimethicone (INCI), PEG / PPG-20 / 22 butyl ether dimethicone (INCI), PEG-3 dimethicone (INCI), PEG-10 dimethicone (INCI), PEG-9 polydimethylsiloxyethyl dimethicone (INCI), lauryl PEG-9 polydimethylsiloxyethyl dimethicone (INCI), cetyl PEG / PPG-10 / 1 dimethicone (INCI), polyglyceryl-3 disiloxane dimethicone (INCI), polyglyceryl-3 polydimethylsiloxyethyl dimethicone (INCI), lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone (INCI), etc.
[0145] Examples of commercially available products include KF-6011, KF-6011P, KF-6012, KF-6015, KF-6017, KF-6043, KF-6028, KF-6038, KF-6048, KF-6100, KF-6104, KF-6106, KF-6105, and KF-6115 manufactured by Shin-Etsu Chemical Co., Ltd.
[0146] Examples of crosslinked silicone surfactants include (dimethicone / (PEG-10 / 15)) crosspolymer (INCI), (PEG-15 / lauryl dimethicone) crosspolymer (INCI), (PEG-10 / lauryl dimethicone) crosspolymer (INCI), (PEG-15 / lauryl polydimethylsiloxyethyl dimethicone) crosspolymer (INCI), (dimethicone / polyglycerin-3) crosspolymer (INCI), (lauryl dimethicone / polyglycerin-3) crosspolymer (INCI), and (polyglycerin-3 / lauryl polydimethylsiloxyethyl dimethicone) crosspolymer (INCI).
[0147] Furthermore, when a crosslinked silicone surfactant is used, in a composition comprising the crosslinked silicone surfactant and an oily agent that is liquid at room temperature, it is preferable that the crosslinked silicone surfactant swells with the liquid oil in an amount equal to or greater than its own weight.
[0148] The liquid oil may be a liquid silicone oil, hydrocarbon oil, ester oil, natural animal or vegetable oil, semi-synthetic oil, or fluorine-based oil in the antioxidant component (1) oil, and examples thereof include cyclopentasiloxane (INCI), dimethicone (INCI), mineral oil (INCI), isododecane (INCI), isohexadecane (INCI), triethylhexanoin (INCI), isotridecyl isononanoate (display name: (INCI: Isotridecyl Isononanoate)), squalane (INCI), etc.
[0149] Examples of commercially available cross-linked silicone surfactants that swell when exposed to a liquid oil include KSG-210, KSG-240, KSG-270, KSG-310, KSG-320, KSG-330, KSG-340, KSG-320Z, KSG-350Z, KSG-710, KSG-810, KSG-820, KSG-830, KSG-840, KSG-820Z, and KSG-850Z manufactured by Shin-Etsu Chemical Co., Ltd.
[0150] (4) Powder Examples of powders include color pigments, inorganic powders, metal powders, organic powders, inorganic-organic composite powders, etc. Specific examples are as follows:
[0151] Color pigments The color pigment is not particularly limited as long as it is a pigment that is normally used for coloring cosmetics, and examples thereof include red iron oxide (:display name (INCI:Iron Oxides)), yellow iron oxide (:display name (INCI:Iron Oxides)), white titanium oxide (:display name (INCI:Titanium Dioxide)), black iron oxide (:display name (INCI:Iron Oxides)), ultramarines (:display name (INCI:Ultramarines)), ferric ferrocyanide (:display name (INCI:Ferric Ferrocyanide, Ferric Ammonium Ferrocyanide)), manganese violet (:display name (INCI:Manganese Violet)), cobalt titanate (:display name (INCI:Cobalt Titanium Oxide)), chromium hydroxide (:display name (INCI:Chromium Hydroxide Green)), chromium oxide (:display name (INCI:Chromium Oxide)), and the like. Greens), oxide (Al / cobalt) (:Display name (INCI: Cobalt Aluminum Oxide)), cobalt titanate (:Display name (INCI: Cobalt Titanium Oxide)), (titanium / titanium oxide) fired product (:Display name (INCI: Titanium / Titanium Dioxide)), titanate (Li / cobalt) (:Display name (INCI: Lithium Cobalt Titanate)), cobalt titanate (:Display name (INCI: Cobalt Titanium Oxide)), (iron oxide / titanium oxide) sintered product (:Display name), composites doped with different metals such as iron oxide-doped titanium oxide (:Display name (INCI: Iron Oxides, Titanium Dioxide)), titanium nitride (:Display name (INCI: Titanium Nitride)), ferrous hydroxide (:Display name (INCI: Iron Any of the following color pigments can be used: inorganic brown pigments such as γ-iron oxide, inorganic yellow pigments such as yellow ochre, lakes of tar-based pigments, lakes of natural pigments, etc.
[0152] The shape of the pigment may be any shape, such as spherical, approximately spherical, rod-like, spindle-like, petal-like, strip-like, or irregular, and there are no particular limitations on the geometric form as long as it is possible to impart color to the cosmetic.
[0153] ·Inorganic powder Inorganic powders include zirconium oxide (:display name (INCI: Zirconium Dioxide)), zinc oxide (:display name (INCI: Zinc Oxide)), cerium oxide (:display name (INCI: Cerium Oxide)), magnesium oxide (:display name (INCI: Magnesium Oxide)), barium sulfate (:display name (INCI: Barium Sulfate)), calcium sulfate (:display name (INCI: Calcium Carbonate)), magnesium sulfate (:display name (INCI: Magnesium Sulfate)), calcium carbonate (:display name (INCI: Calcium Carbonate)), magnesium carbonate (:display name (INCI: Magnesium Carbonate)), talc (INCI), mica (INCI), kaolin (INCI), and synthetic fluorphlogopite (:display name (INCI: Synthetic Fluorphlogopite), synthetic phlogopite iron (display name), biotite (display name (INCI: Biotite)), potassium silicate (display name (INCI: Potassium Silicate)), silica (INCI), aluminum silicate (display name (INCI: Aluminum Silicate)), magnesium silicate (display name (INCI: Magnesium Silicate)), aluminum magnesium silicate (display name (INCI: Magnesium Aluminum Silicate)), calcium silicate (display name (INCI: Calcium Silicate)), aluminum calcium sodium silicate (display name (INCI: Aluminum Calcium Sodium Silicate)), lithium magnesium sodium silicate (display name (INCI: Lithium Magnesium Sodium Silicate)), sodium magnesium silicate (display name (INCI: Sodium Magnesium Silicate), Borosilicate (Ca / Al) (Indication name (INCI: Calcium Aluminum Borosilicate)), Borosilicate (Ca / Na) (Indication name (INCI: Calcium Sodium)Examples of such particles include fine particles made of aluminum hydroxide (INCI: Aluminum Hydroxide), boron nitride (INCI: Boron Nitride), glass (INCI: Glass), and the like.
[0154] Examples of inorganic colored pearl pigments include pearl agents such as mica (INCI) coated with titanium dioxide (display name (INCI: Titanium Dioxide)) and synthetic fluorophlogopite (INCI: Synthetic Fluorphlogopite) coated with titanium dioxide (display name (INCI: Titanium Dioxide)), as well as pearl pigments such as bismuth oxychloride (INCI: Bismuth Oxychloride), bismuth oxychloride (INCI: Bismuth Oxychloride) coated with titanium dioxide (display name (INCI: Titanium Dioxide)), talc (INCI) coated with titanium dioxide (display name (INCI: Titanium Dioxide)), fish scale foil (display name), and colored mica coated with titanium dioxide (DISPLAY name (INCI: Titanium Dioxide)), and are not particularly limited and may be untreated or may have been subjected to a known surface treatment commonly used in cosmetics.
[0155] ·Metal powder Examples of metal powders include metal fine particles made of Al (display name (INCI: Aluminum, Aluminum Powder)), copper (display name (INCI: Copper Powder)), silver (display name (INCI: Silver Powder)), gold (display name (INCI: Gold)), etc.
[0156] ·Organic powder Examples of organic powders include powders made from silicone, polyamide, polyacrylic acid / acrylic acid ester, polyester, polyethylene (INCI), polypropylene (INCI), polystyrene (INCI), styrene / acrylic acid copolymer, divinylbenzene / styrene copolymer, polyurethane, vinyl resin, urea resin, melamine resin, benzoguanamine, polymethylbenzoguanamine, tetrafluoroethylene, polymethyl methacrylate, cellulose (INCI), silk (INCI), nylon (display name), phenolic resin, epoxy resin, polycarbonate, etc.
[0157] In particular, examples of silicones include silicone resin particles; polymethylsilsesquioxane (INCI), silicone rubber powder, silicone resin-coated silicone rubber powder; (vinyl dimethicone / methicone silsesquioxane) crosspolymer (INCI), (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) crosspolymer (INCI), polysilicone-1 crosspolymer (INCI), polysilicone-22 (INCI), and the like.
[0158] Examples of commercially available silicone powders include KMP-590, KMP-591, KMP-592, KMP-597, KMP-598, KSP-100, KSP-101, KSP-102, KSP-105, KSP-300, KSP-411, KSP-441, KM-9729, and KM-440 manufactured by Shin-Etsu Chemical Co., Ltd.
[0159] Other examples include metal soaps, and specific examples include powders made of zinc stearate (labeled as "INCI: Zinc Stearate"), aluminum stearate (labeled as "INCI: Aluminum Stearate"), calcium stearate (labeled as "INCI: Calcium Stearate"), magnesium stearate (labeled as "INCI: Magnesium Stearate"), zinc myristate (labeled as "INCI: Zinc Myristate"), magnesium myristate (labeled as "INCI: Magnesium Myristate"), zinc / sodium cetyl phosphate (labeled as "INCI: Sodium Zinc Cetyl Phosphate"), potassium cetyl phosphate (labeled as "INCI: Potassium Cetyl Phosphate"), and the like.
[0160] Further, organic dyes and the like can also be mentioned, and specific examples thereof include Red 3, Red 104(1) (: display name (INCI: Red 28, Red 28 Lake)), Red 106, Red 201 (: display name (INCI: Red 6)), Red 202 (: display name (INCI: Red 7)), Red 204, Red 205, Red 220 (: display name (INCI: Red 34)), Red 226 (: display name (INCI: Red 30)), Red 227 (: display name (INCI: Red 33, RED 33 Lake)), Red 228 (: display name (INCI: Red 36)), Red 230(1) (: display name (INCI: Red 22, Red 22 Red 230(2)(Display name), Red 401(Display name), Red 505(Display name), Yellow 4(:Display name(INCI:Yellow 5)), Yellow 5(:Display name(INCI:Yellow 6, Yellow 6 Lake))), Yellow 202(1)(:Display name(INCI:Yellow 8)), Yellow 203(:Display name(INCI:Yellow) 10, Yellow 10 Lake)), Yellow 204 (:Display name (INCI:Yellow 11)), Yellow 401, Blue 1 (:Display name (INCI:Blue 1, Blue 1 Lake)), Blue 2, Blue 201, Blue 205 (:Display name (INCI:Blue 4))), Blue 404 (Display name), Green 3 (:Display name (INCI:Green 3, Green 3) Lake)), Green 201(:Display name(INCI:Green) 5), Green 202 (:Label Name (INCI:Green 6)), Green 204 (:Label Name (INCI:Green 8)), Green 205 (Label Name), Orange 201 (:Label Name (INCI:Orange 5)), Orange 203 (:Label Name (INCI:Pigment Orange 5)), Orange 204 (Label Name), Orange 205 (:Label Name (INCI:Orange 4, Orange 4 Lake)), Orange 206 (:Label Name (INCI:Orange 10)), Orange 207 (:Label Name (INCI:Orange 11)), and other tar dyes, cochineal (INCI), laccaic acid (:Label Name (INCI:Laccaic Acid)), safflower red (:Label Name (INCI:Carthamus Tinctorius (Safflower) Flower)Examples of natural pigments include Lithospermum Officinale Root Extract (INCI: Lithospermum Officinale Root Extract), Gardenia Yellow (INCI: Hydrolyzed Gardenia Florida Extract), and other natural pigments.
[0161] ·Inorganic / organic composite powder The inorganic-organic composite powder may be, for example, a composite powder in which the surface of an inorganic powder is coated with an organic powder by a known or commonly used method.
[0162] The above-mentioned powders may also be surface-treated. The surface treatment agent is preferably one that can impart hydrophobicity from the viewpoint of water resistance of the cosmetic. Examples of the surface treatment agent that can impart hydrophobicity include, but are not limited to, silicone treatment agents, waxes, paraffins, organic fluorine compounds such as perfluoroalkyl phosphates, surfactants, amino acids such as N-acyl glutamic acid, and metal soaps such as aluminum stearate and magnesium myristate.
[0163] More preferred are silicone treatment agents, including silanes or silylating agents such as triethoxycaprylylsilane (INCI), dimethicone (INCI), methicone (INCI), hydrogen dimethicone (INCI), triethoxysilylethyl polydimethylsiloxyethyl dimethicone (INCI), triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone (INCI), and (acrylates / tridecyl acrylate / triethoxysilylpropyl methacrylate / dimethicone methacrylate) copolymer (display name (INCI: Acrylates / Tridecyl Acrylate / Triethoxysilylpropyl Methacrylate / Dimethicone Methacrylate Copolymer)).
[0164] Specific examples of these silicone treating agents include AES-3083, KF-99P, KF-9901, KF-9908, KF-9909, KP-574, KP-541, and the like, all manufactured by Shin-Etsu Chemical Co., Ltd.
[0165] Furthermore, the above surface hydrophobic treatment agents may be used alone or in combination of two or more kinds.
[0166] Specific examples of surface-treated color pigments include the KTP-09 series manufactured by Shin-Etsu Chemical Co., Ltd., particularly KTP-09W, 09R, 09Y, and 09B.
[0167] (5) A composition comprising a crosslinked organopolysiloxane and an oil that is liquid at room temperature In a composition comprising a crosslinked organopolysiloxane and an oil that is liquid at room temperature, the crosslinked organopolysiloxane preferably swells with the liquid oil in an amount equal to or greater than its own weight. The liquid oil may be a liquid silicone oil, hydrocarbon oil, ester oil, natural animal or vegetable oil, semi-synthetic oil, or fluorine-containing oil, as contained in the optional component (1) oil, such as cyclopentasiloxane (INCI), dimethicone (INCI), mineral oil (INCI), isododecane (INCI), isohexadecane (INCI), triethylhexanoin (INCI), isotridecyl isononanoate (INCI: Isotridecyl Isononanoate), or squalane (INCI).
[0168] Unlike the cross-linked silicone surfactant of component (3) described above, component (5) is a compound that does not have a polyether or polyglycerin structure in its molecular structure, and specific examples include (dimethicone / vinyl dimethicone) crosspolymer (INCI), (dimethicone / phenyl vinyl dimethicone) crosspolymer (INCI), (vinyl dimethicone / lauryl dimethicone) crosspolymer (INCI), (lauryl polydimethylsiloxyethyl dimethicone / bis vinyl dimethicone) crosspolymer (INCI), etc.
[0169] Examples of commercially available compositions comprising a crosslinked organopolysiloxane and an oil that is liquid at room temperature include KSG-15, KSG-1510, KSG-16, KSG-1610, KSG-19, KSG-016F, KSG-18A, KSG-41A, KSG-42A, KSG-43, KSG-44, KSG-042Z, KSG-045Z, and KSG-048Z manufactured by Shin-Etsu Chemical Co., Ltd.
[0170] (6) Film-forming agent The film-forming agent is mainly blended for the purpose of further maintaining the durability of the cosmetic effect. Although there are no particular limitations, a silicone-based composition is preferable from the viewpoint of imparting water repellency. Specifically, trimethylsiloxysilicate, acrylic-silicone film-forming agent, silicone-modified norbornene, silicone-modified pullulan, silicone-modified polyvinyl alcohol, etc. can be used.
[0171] Examples of film-forming agents for silicone-based compositions include trimethylsiloxysilicate (INCI: Trimethylsiloxysilicate), acrylates / dimethicone copolymer (INCI), norbornene / tris(trimethylsiloxy)silylnorbornene copolymer (INCI), and tri(trimethylsiloxy)silylpropylcarbamate pullulan (INCI: Trimethylsiloxysilylcarbamoyl Pullulan).
[0172] The film-forming agent may be dissolved in a liquid oil at room temperature before blending into the cosmetic. The liquid oil may be a liquid silicone oil, hydrocarbon oil, ester oil, natural animal or vegetable oil, semi-synthetic oil, or fluorine-based oil, among the optional components (1) of the oil.
[0173] Specific examples of commercially available silicone film-forming agents include KF-7312J, KP-545, KP-549, KP-543, NBN-30-ID, TSPL-30-ID, and TSPL-30-D5 manufactured by Shin-Etsu Chemical Co., Ltd.
[0174] (7) UV absorbing and scattering agents Examples of ultraviolet absorbing / scattering agents include particles that absorb and scatter ultraviolet light, such as fine particle titanium oxide, fine particle iron-containing titanium oxide, fine particle zinc oxide, fine particle cerium oxide, and composites thereof. Dispersions in which these particles that absorb and scatter ultraviolet light are dispersed in an oil agent in advance can also be used.
[0175] As the oil agent, liquid silicone oil, hydrocarbon oil, ester oil, natural animal and vegetable oil, semi-synthetic oil, and fluorine-based oil in the optional component (1) oil agent can be used.
[0176] Specific examples of dispersions in which particles that absorb and scatter ultraviolet light are dispersed in an oil agent in advance include the SPD series (product name) manufactured by Shin-Etsu Chemical Co., Ltd., particularly SPD-T5, Z5, T6, Z6, T7, etc.
[0177] (8) Other additives Other additives include oil-soluble gelling agents, preservatives / bactericides, antiperspirants, fragrances, salts, antioxidants, pH adjusters, chelating agents, cooling agents, anti-inflammatory agents, skin-beautifying ingredients (whitening agents, cell activators, skin roughness improving agents, blood circulation promoters, skin astringents, antiseborrheic agents, etc.), vitamins, amino acids, nucleic acids, hormones, and inclusion compounds.
[0178] Oil-soluble gelling agent Examples of oil-soluble gelling agents include metal soaps such as aluminum stearate, magnesium stearate, and zinc myristate; amino acid derivatives such as lauroyl glutamic acid (labeled as "Lauroyl Glutamic Acid") and α,γ-di-n-butylamine; dextrin palmitate (labeled as "Dextrin Palmitate"), dextrin isostearate (labeled as "Dextrin Isostearate"), dextrin myristate (labeled as "Dextrin Myristate"), inulin stearate (labeled as "Stearoyl Inulin"), and dextrin (palmitate / ethylhexanoate) (labeled as "Dextrin"). dextrin fatty acid esters such as dextrin palmitate / ethylhexanoate); sucrose fatty acid esters such as sucrose palmitate and sucrose stearate; fructooligosaccharide fatty acid esters such as fructooligosaccharide stearate and fructooligosaccharide 2-ethylhexanoate; benzylidene derivatives of sorbitol such as monobenzylidene sorbitol and dibenzylidene sorbitol; disteardimonium hectorite (INCI), stearalkonium hectorite (INCI), organically modified clay minerals of hectorite; stearalkonium bentonite (INCI), etc.
[0179] · Preservatives · Disinfectants Preservatives and disinfectants include alkyl parahydroxybenzoate, benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, phenoxyethanol, imidazolidinyl urea, salicylic acid, isopropylmethylphenol, carbolic acid, parachlormetacresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, trichlorocarbanilide, iodopropynyl butylcarbamate, polylysine, photosensitizers, silver, and plant extracts.
[0180] Antiperspirant Antiperspirants include aluminum hydroxyhalides such as chlorohydroxy AL, aluminum halides such as aluminum chloride, aluminum allantoin, tannic acid, persimmon tannin, sulfate (AL / K), zinc oxide, zinc paraphenolsulfonate, burnt alum, tetrachloro(Al / zirconium) hydrate, trichlorohydrex glycine(Al / zirconium), etc. Particularly preferred components that exhibit high effectiveness are aluminum hydroxyhalides, aluminum halides, and their complexes or mixtures with zirconyl oxyhalides and zirconyl hydroxyhalides (for example, tetrachloro(Al / zirconium) hydrate, trichlorohydrex glycine(Al / zirconium)).
[0181] ·Fragrance Fragrances include natural and synthetic fragrances. Natural fragrances include plant-based fragrances isolated from flowers, leaves, wood, and peels; and animal-based 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; and acetals.
[0182] ·salts Examples of salts include inorganic salts, organic acid salts, amine salts, and amino acid salts. Examples of inorganic salts include sodium salts, potassium salts, magnesium salts, calcium salts, aluminum salts, zirconium salts, 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, dehydroacetic acid, citric acid, malic acid, succinic acid, ascorbic acid, and stearic acid; examples of amine salts and amino acid salts include salts of amines such as triethanolamine, and salts of amino acids such as glutamic acid. In addition, salts of hyaluronic acid, chondroitin sulfate, aluminum zirconium glycine complex, and even acid-alkali neutral salts used in cosmetic formulations can also be used.
[0183] Antioxidants The antioxidant is not particularly limited, but examples thereof include carotenoids, ascorbic acid and its salts, ascorbyl stearate, tocopherol acetate, tocopherol, pt-butylphenol, butylhydroxyanisole, dibutylhydroxytoluene, phytic acid, ferulic acid, thiotaurine, hypotaurine, sulfites, erythorbic acid and its salts, chlorogenic acid, epicatechin, epigallocatechin, epigallocatechin gallate, apigenin, campherol, myricetin, quercetin, etc. Only one type of antioxidant may be used, or two or more types may be used in combination.
[0184] pH adjuster Examples of pH adjusters include lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, dl-malic acid, potassium carbonate, sodium bicarbonate, and ammonium bicarbonate.
[0185] Chelating agents Examples of the chelating agent include alanine, edetate sodium salt, sodium polyphosphate, sodium metaphosphate, phosphoric acid, and the like.
[0186] · Cooling agent Cooling agents include L-menthol, camphor, menthyl lactate, and the like.
[0187] Anti-inflammatory Anti-inflammatory agents include allantoin, glycyrrhizinic acid and its salts, glycyrrhetinic acid and stearyl glycyrrhetinate, tranexamic acid, azulene, and the like.
[0188] ·Skin-beautifying ingredients Skin-beautifying ingredients include whitening agents such as placenta extract, arbutin, glutathione, and saxifrage extract; cell activators such as royal jelly, photosensitizers, cholesterol derivatives, and calf blood extract; rough skin improving agents; blood circulation promoters such as nonylic acid valenylamide, nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, zingerone, cantharides tincture, ichthammol, caffeine, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandelate, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthine, and γ-oryzanol; skin astringents such as zinc oxide and tannic acid; and antiseborrheic agents such as sulfur and thianthrol.
[0189] Vitamins Vitamins include vitamin A oil, retinol, retinol acetate, retinol palmitate, and other vitamin A compounds; riboflavin, riboflavin butyrate, flavin adenine nucleotide, and other vitamin B2 compounds; pyridoxine hydrochloride, pyridoxine dioctanoate, pyridoxine tripalmitate, and other vitamin B6 compounds; vitamin B12 and its derivatives; vitamin B15 and its derivatives; L-ascorbic acid, L-ascorbic acid dipalmitate, sodium L-ascorbic acid 2-sulfate, and dipotassium L-ascorbic acid phosphate diester. vitamin C such as ergocalciferol and cholecalciferol; vitamin D such as α-tocopherol, β-tocopherol, γ-tocopherol, dl-α-tocopherol acetate, dl-α-tocopherol nicotinate, and dl-α-tocopherol succinate; nicotinic acids such as nicotinic acid, benzyl nicotinate, and nicotinamide; vitamin H, vitamin P, pantothenic acids such as calcium pantothenate, D-pantothenyl alcohol, pantothenyl ethyl ether, and acetylpantothenyl ethyl ether; and biotin.
[0190] Amino acids Examples of amino acids include glycine, valine, leucine, isoleucine, serine, threonine, phenylalanine, arginine, lysine, aspartic acid, glutamic acid, cystine, cysteine, methionine, and tryptophan.
[0191] ·Nucleic acid Examples of nucleic acids include deoxyribonucleic acid.
[0192] ·hormone Examples of hormones include estradiol and ethenylestradiol.
[0193] ·Inclusion compounds Examples of the inclusion compound include cyclodextrin. [Example]
[0194] The present invention will be described in more detail below with reference to examples and comparative examples, but the present invention is not limited to the following examples. In the examples, the kinematic viscosity is a value measured using a capillary viscometer at 25°C, and "%" representing concentration and content means "% by mass".
[0195] [Manufacturing Example 1] (Production of aqueous dispersion of silicone rubber particles) The kinematic viscosity shown by the following formula (11) is 55 mm 2 344 g of vinyl group-containing dimethylpolysiloxane (A1) having a kinematic viscosity of 30 mm / s, 256 g of methylhydrogenpolysiloxane (B1) (amount equivalent to 1.15 hydrosilyl groups per vinyl group) and 0.1 g of dl-α-tocopherol (antioxidant) were placed in a 1-liter glass beaker and mixed and dissolved using a homomixer. 30 g of polyoxyethylene lauryl ether (trade name: Emulgen 109P, manufactured by Kao Corporation) and 40 g of water were added and stirred using a homomixer, resulting in a thickened mixture that was no longer agitable. The thickened mixture was kneaded for 15 minutes using a homodisper. 528 g of water was then added and mixed using a homomixer, resulting in a uniform white emulsion. This emulsion was transferred to a 1-liter glass flask equipped with an anchor-type stirring blade stirrer, and the temperature was adjusted to 20-25°C. After that, a mixed solution of 1 g of an isododecane solution of a platinum-vinyl group-containing disiloxane complex (platinum content 0.5%) and 1 g of polyoxyethylene lauryl ether (trade name: Emulgen 109P, manufactured by Kao Corporation) was added with stirring, and the mixture was stirred at the same temperature for 24 hours to obtain an aqueous dispersion of silicone rubber particles.
[0196] The volume average particle size of the silicone rubber particles was measured using a laser diffraction / scattering particle size distribution analyzer LA-960 (manufactured by Horiba, Ltd.) and was found to be 300 nm.
[0197] The kinematic viscosity shown by the following formula (11) is 55 mm 2 / s vinyl group-containing dimethylpolysiloxane (A1), kinematic viscosity of 30 mm represented by the following formula (12) 2 / s methylhydrogenpolysiloxane (B1) and an isododecane solution of a platinum-vinyl group-containing disiloxane complex (platinum content 0.5%) were mixed in the above proportions, poured into an aluminum dish to a thickness of 10 mm, and left at 25°C for 6 hours, then heated in a thermostatic chamber at 50°C for an additional hour. The resulting cured product was a non-sticky rubber elastic body, and its hardness was measured to be 50 using a durometer A hardness tester specified in JIS K6253.
[0198] (A1): Vinyl group-containing dimethylpolysiloxane [ka]
[0199] (B1): Methylhydrogenpolysiloxane [ka]
[0200] [Manufacturing Example 2] (Production of aqueous dispersion of silicone rubber particles) The kinematic viscosity shown by the following formula (13) is 5,060 mm 2 393 g of vinyl group-containing dimethylpolysiloxane (A2) having a kinematic viscosity of 30 mm / s, 2 7 g of methylhydrogenpolysiloxane (containing 7 g of methylhydrogenpolysiloxane at 1 / s, yielding 1.19 hydrosilyl groups per vinyl group) and 0.1 g of dl-α-tocopherol (antioxidant) were placed in a 1-liter glass beaker and mixed and dissolved using a homomixer. 42 g of polyoxyethylene lauryl ether (product name: Emulgen 109P, manufactured by Kao Corporation) and 35 g of water were added and stirred using a homomixer, resulting in a thickened mixture that was no longer agitable. The thickened mixture was kneaded for 15 minutes using a homodisper. 521 g of water was then added and mixed using a homomixer, resulting in a uniform white emulsion. This emulsion was transferred to a 1-liter glass flask equipped with an anchor-type stirring blade stirrer, and the temperature was adjusted to 20-25°C. After that, a mixed solution of 0.6 g of an isododecane solution of a platinum-vinyl group-containing disiloxane complex (platinum content 0.5%) and 1 g of polyoxyethylene lauryl ether (trade name: Emulgen 109P, manufactured by Kao Corporation) was added with stirring, and the mixture was stirred at the same temperature for 24 hours to obtain an aqueous dispersion of silicone rubber particles.
[0201] The volume average particle size of the silicone rubber particles was measured using a laser diffraction / scattering particle size distribution analyzer LA-960 (manufactured by Horiba, Ltd.) and was found to be 300 nm.
[0202] The kinematic viscosity shown by the following formula (13) is 5,060 mm 2 / s vinyl group-containing dimethylpolysiloxane, kinematic viscosity of 30 mm represented by the formula (12) 2 A methylhydrogenpolysiloxane of 1 / s and an isododecane solution of a platinum-vinyl group-containing disiloxane complex (platinum content 0.5%) were mixed in the above proportions, poured into an aluminum dish to a thickness of 10 mm, and left at 25°C for 6 hours, then heated in a thermostatic chamber at 50°C for an additional hour. The resulting cured product was a non-sticky rubber elastic body, and its hardness, measured with a Durometer A hardness tester, was 20.
[0203] (A2): Vinyl group-containing dimethylpolysiloxane [ka]
[0204] [Example 1] Cellulose particles (product name: CELLULOBEADS) were placed in a 2-liter glass flask equipped with an anchor-type stirring blade. 150 g of D5 (manufactured by Daito Chemical Industry Co., Ltd., shape = spherical, volume average particle diameter = 12 μm, electron microscope photograph: Figure 4), 20 g of the silicone rubber particle aqueous dispersion obtained in Production Example 1 (amount equivalent to 5.3 parts by weight of silicone rubber particles per 100 parts by weight of cellulose particles), 5.5 g of a 30% aqueous solution of lauryltrimethylammonium chloride (trade name: Cation BB, manufactured by NOF Corporation) (amount equivalent to 0.2 parts by weight of lauryltrimethylammonium chloride per 100 parts by weight of water), 0.62 g of a 40% aqueous solution of dimethyldiallylammonium chloride polymer (trade name: ME Polymer H40W, manufactured by Toho Chemical Industry Co., Ltd.) (amount equivalent to 0.03 parts by weight of dimethyldiallylammonium chloride polymer per 100 parts by weight of water), 1.6 g of 2.8% aqueous ammonia, and 800 g of water were added. The pH of the solution at this time was 10.8. After adjusting the temperature to 5-10°C, 22 g of tetramethoxysilane (8.69 g of silica after the hydrolysis and condensation reaction, equivalent to 109 parts by mass of silica per 100 parts by mass of silicone rubber particles) was added dropwise over 20 minutes. The liquid temperature was maintained at 5-10°C during this period, and stirring was continued for an additional hour. The mixture was then heated to 75-80°C and stirred for an hour while maintaining this temperature, completing the hydrolysis and condensation reaction of tetramethoxysilane. The resulting suspension was dehydrated using a pressure filter. The dehydrated product was transferred to a 2-liter glass flask equipped with an anchor-type impeller stirrer, and 1,000 g of water was added. After stirring for 30 minutes, the mixture was dehydrated using a pressure filter. This procedure was repeated twice. The resulting dehydrated product was dried at 105°C in a hot air flow dryer, and the dried product was crushed using a jet mill to obtain particles.
[0205] The volume average particle size of the obtained silicone particles was measured using an electrical resistance particle size distribution measuring device (Multisizer 3, manufactured by Beckman Coulter, Inc.) and was found to be 12 μm.
[0206] When the obtained particles were observed under an electron microscope, it was confirmed that the spherical particle surfaces were closely coated with spherical particles of about 300 nm in size, forming composite particles consisting of cellulose particles with silicone rubber particles attached to the surface. The electron microscope photograph is shown in Figure 1.
[0207] Five grams of the resulting particles were added to a 100 mL beaker containing 80 g of a 1% aqueous solution of polyoxyethylene lauryl ether (trade name: Emulgen 109P, manufactured by Kao Corporation), and the particles were dispersed in the aqueous solution by stirring with a glass rod. After leaving the mixture to stand for 24 hours, the particles were observed to see if they had floated or not; all of the particles had settled. Silicone rubber particles float because their specific gravity is lower than that of water, but this result indicates that the silicone rubber particles have not fallen off the surface of the cellulose particles, suggesting that the silica acts as a binder to adhere the silicone rubber particles to the surface of the cellulose particles.
[0208] [Example 2] A 2-liter glass flask equipped with an anchor-type stirring blade stirrer was charged with 150 g of cellulose particles (trade name: CELLULOBEADS D5, manufactured by Daito Chemical Industry Co., Ltd., shape = spherical, volume average particle size = 12 μm), 20 g of the silicone rubber particle aqueous dispersion obtained in Production Example 2 (amount of silicone rubber particles = 5.3 parts by mass per 100 parts by mass of cellulose particles), 5.5 g of a 30% aqueous solution of lauryltrimethylammonium chloride (trade name: CATION BB, manufactured by NOF Corporation) (amount of lauryltrimethylammonium chloride = 0.2 parts by mass per 100 parts by mass of water), 0.62 g of a 40% aqueous solution of dimethyldiallylammonium chloride polymer (trade name: ME Polymer H40W, manufactured by Toho Chemical Industry Co., Ltd.) (amount of dimethyldiallylammonium chloride polymer = 0.03 parts by mass per 100 parts by mass of water), 1.6 g of 2.8% aqueous ammonia, and 811 g of water. The pH of the solution was 10.8. After adjusting the temperature to 5-10°C, 11 g of tetramethoxysilane (4.34 g of silica after the hydrolysis and condensation reaction, equivalent to 54 parts by mass of silica per 100 parts by mass of silicone rubber particles) was added dropwise over 10 minutes. The solution temperature was maintained at 5-10°C during this period, and stirring was continued for an additional hour. The solution was then heated to 75-80°C and stirred for an hour while maintaining this temperature, completing the hydrolysis and condensation reaction of tetramethoxysilane. The resulting suspension was dehydrated using a pressure filter. The dehydrated product was transferred to a 2-liter glass flask equipped with an anchor-type impeller stirrer, and 1,000 g of water was added. After stirring for 30 minutes, the suspension was dehydrated using a pressure filter. This procedure was repeated twice. The resulting dehydrated product was dried at 105°C in a hot air flow dryer, and the dried product was crushed using a jet mill to obtain particles.
[0209] The volume average particle size of the obtained silicone particles was measured using an electrical resistance particle size distribution measuring device (Multisizer 3, manufactured by Beckman Coulter, Inc.) and was found to be 12 μm.
[0210] When the obtained particles were observed under an electron microscope, it was confirmed that 80 to 90 percent of the spherical particle surface was made up of spherical particles and aggregates of about 300 nm in size, and that the particles were composite particles made up of silicone rubber particles attached to the surface of cellulose particles. The electron microscope photograph is shown in Figure 2.
[0211] Five grams of the resulting particles were added to a 100 mL beaker containing 80 g of a 1% aqueous solution of polyoxyethylene lauryl ether (trade name: Emulgen 109P, manufactured by Kao Corporation), and the particles were dispersed in the aqueous solution by stirring with a glass rod. After leaving the mixture to stand for 24 hours, the particles were observed to see if they had floated or not; all of the particles had settled. Silicone rubber particles float because their specific gravity is lower than that of water, but this result indicates that the silicone rubber particles have not fallen off the surface of the cellulose particles, suggesting that the silica acts as a binder to adhere the silicone rubber particles to the surface of the cellulose particles.
[0212] [Example 3] A 2-liter glass flask equipped with an anchor-type stirring blade stirrer was charged with 150 g of cellulose particles (trade name: CELLULOBEADS D5, manufactured by Daito Chemical Industry Co., Ltd., shape = spherical, volume average particle size = 12 μm), 3.5 g of the silicone rubber particle aqueous dispersion obtained in Production Example 2 (amount of silicone rubber particles = 0.9 parts by mass per 100 parts by mass of cellulose particles), 5.6 g of a 30% aqueous solution of lauryltrimethylammonium chloride (trade name: CATION BB, manufactured by NOF Corporation) (amount of lauryltrimethylammonium chloride = 0.2 parts by mass per 100 parts by mass of water), 0.63 g of a 40% aqueous solution of dimethyldiallylammonium chloride polymer (trade name: ME Polymer H40W, manufactured by Toho Chemical Industry Co., Ltd.) (amount of dimethyldiallylammonium chloride polymer = 0.03 parts by mass per 100 parts by mass of water), 1.6 g of 2.8% aqueous ammonia, and 828 g of water. The pH of the solution was 10.8. After adjusting the temperature to 5-10°C, 11 g of tetramethoxysilane (4.34 g of silica after the hydrolysis and condensation reaction, equivalent to 310 parts by mass of silica per 100 parts by mass of silicone rubber particles) was added dropwise over 10 minutes. The solution temperature was maintained at 5-10°C during this period, and stirring was continued for an additional hour. The solution was then heated to 75-80°C and stirred for an hour while maintaining this temperature, completing the hydrolysis and condensation reaction of tetramethoxysilane. The resulting suspension was dehydrated using a pressure filter. The dehydrated product was transferred to a 2-liter glass flask equipped with an anchor-type impeller stirrer, and 1,000 g of water was added. After stirring for 30 minutes, the suspension was dehydrated using a pressure filter. This procedure was repeated twice. The resulting dehydrated product was dried at 105°C in a hot air flow dryer, and the dried product was crushed using a jet mill to obtain particles.
[0213] The volume average particle size of the obtained silicone particles was measured using an electrical resistance particle size distribution measuring device (Multisizer 3, manufactured by Beckman Coulter, Inc.) and was found to be 12 μm.
[0214] When the obtained particles were observed under an electron microscope, it was confirmed that spherical particles of approximately 300 nm in size were sparsely attached to the spherical particle surface, and that they were composite particles consisting of cellulose particles with silicone rubber particles attached to the surface. On surfaces where no silicone rubber particles were attached, granular matter of 100 nm or less was observed adhering, which was determined to be silica. An electron microscope image is shown in Figure 3.
[0215] Five grams of the resulting particles were added to a 100 mL beaker containing 80 g of a 1% aqueous solution of polyoxyethylene lauryl ether (trade name: Emulgen 109P, manufactured by Kao Corporation), and the particles were dispersed in the aqueous solution by stirring with a glass rod. After leaving the mixture to stand for 24 hours, the particles were observed to see if they had floated or not; all of the particles had settled. Silicone rubber particles float because their specific gravity is lower than that of water, but this result indicates that the silicone rubber particles have not fallen off the surface of the cellulose particles, suggesting that the silica acts as a binder to adhere the silicone rubber particles to the surface of the cellulose particles.
[0216] [Comparative Example 1] A 2-liter glass flask equipped with an anchor-type impeller stirrer was charged with 150 g of cellulose particles (trade name: CELLULOBEADS D5, manufactured by Daito Chemical Industry Co., Ltd.; shape: spherical; volume average particle size: 12 μm), 20 g of the silicone rubber particle aqueous dispersion obtained in Production Example 1 (amount equivalent to 5.3 parts by mass of silicone rubber particles per 100 parts by mass of cellulose particles), 1.6 g of 2.8% aqueous ammonia, and 806 g of water. The pH of the solution was 10.8. After adjusting the temperature to 5-10°C, 22 g of tetramethoxysilane (amount equivalent to 8.69 g of silica after hydrolysis and condensation reaction, equivalent to 109 parts by mass of silica per 100 parts by mass of silicone rubber particles) was added dropwise over 20 minutes. The solution temperature was maintained at 5-10°C during this period, and the mixture was stirred for an additional hour. The mixture was then heated to 75-80°C and stirred for 1 hour while maintaining that temperature, completing the hydrolysis and condensation reaction of tetramethoxysilane. The resulting suspension was dehydrated using a pressure filter. The dehydrated product was transferred to a 2-liter glass flask equipped with an anchor-type stirring blade, 1,000 g of water was added, and the mixture was stirred for 30 minutes, after which it was dehydrated using a pressure filter. This procedure was repeated twice. The resulting dehydrated product was dried in a hot air flow dryer at 105°C, and the dried product was crushed in a jet mill to obtain particles.
[0217] When the obtained particles were observed under an electron microscope, no particles were found to be attached to the surface of the cellulose particles.
[0218] In the process of adding tetraalkoxysilane to a mixture of cellulose particles, silicone rubber particles, ammonia water, and water to cause a hydrolysis and condensation reaction, if no cationic substance (cationic surfactant and / or cationic water-soluble polymer) is added, the silicone rubber particles will not adhere to the surface of the cellulose particles.
[0219] [Oil absorption measurement of composite particles] The oil absorption of the composite particles and cellulose particles (trade name: CELLULOBEADS D5, manufactured by Daito Chemical Industry Co., Ltd., shape = spherical, volume average particle size = 12 μm) prepared in the above examples was measured using an oil agent used in cosmetics with reference to JIS K 5101-13-1 Part 13: Oil absorption - Section 1: Refined linseed oil method. The results are shown in Table 1 below and Figure 5.
[0220] [Table 1] (Note 1) Shin-Etsu Chemical Co., Ltd.: Kinematic viscosity at 25°C is 6mm 2 / s Dimethicone (INCI) *In Comparative Example 1, rubber particles and silica do not adhere to the organic resin particles.
[0221] The results in Table 1 and Figure 5 show that Examples 1 to 3 have higher oil absorption capabilities for various oil agents than cellulose particles. Among them, Example 3 has a high oil absorption capability for various oil agents, even though the amount of silicone rubber particles is 1.0 part by mass or less per 100 parts by mass of organic resin particles.
[0222] [Examples 4 to 6 and Comparative Example 2: Evaluation of the usability of composite particles] Skin care cosmetics having the formulations shown in Table 3 below were prepared by the following method, and the following property evaluations were carried out.
[0223] (1) Usability evaluation Skin care cosmetics containing the composite particles and cellulose particles (trade name: CELLULOBEADS D5, manufactured by Daito Chemical Industry Co., Ltd., shape = spherical, volume average particle size = 12 μm) prepared in the above examples were evaluated for usability during application (spreadability, compatibility with skin) and usability after application (non-stickiness, blurring, smoothness). The degree of usability was evaluated by 10 expert panelists. Evaluation was based on the evaluation criteria shown in Table 2, and the results were judged according to the following criteria based on the average of the 10 panelists. The results are also shown in Table 3 below.
[0224] [Table 2]
[0225] (2) Usability criteria ◎: Average score is 4.0 or above ○: Average score is 3.0 or more and less than 4.0 points △: Average score is between 2.0 and 3.0 points ×: Average score is less than 2.0 points
[0226] [Table 3] (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of (70-80% dimethicone + 20-30% dimethicone / PEG-10 / 15 crosspolymer) (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of (80-90% dimethicone + 10-20% dimethicone / vinyl dimethicone crosspolymer) (Note 3) Shin-Etsu Chemical Co., Ltd.: PEG-10 Dimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Kinematic viscosity at 25°C is 6mm 2 / s Dimethicone
[0227] From the results in Table 3 above, it can be seen that Examples 1 to 3 have higher oil absorption capacity than cellulose particles, and because they are composite particles with silicone rubber particles attached to the surface, Examples 4 to 6, which are cosmetics containing Examples 1 to 3, blend well with the skin when applied, and have a smoother texture after application and higher blurring ratings than Comparative Example 2.
[0228] Example 7: Water-in-oil cream (Component) (%) 1.KSG-310 (Note 1) 3.0 2.KSG-44 (Note 2) 1.0 3.KF-6048 (Note 3) 0.2 4. Squalane 10.8 5. Composite particles obtained in Example 3 1.0 6.BG 8.0 7. Ethanol 5.0 8.Mg sulfate 0.2 9. Sodium chloride 0.5 10. Water remaining Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of (65-75% mineral oil + 25-35% PEG-15 / lauryl dimethicone crosspolymer) (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of (squalane 65-75% + (vinyl dimethicone / lauryl dimethicone) crosspolymer 25-35%) (Note 3) Shin-Etsu Chemical Co., Ltd.: Cetyl PEG / PPG-10 / 1 Dimethicone
[0229] (Manufacturing method) A: Mix ingredients 1 to 5. B: Mix ingredients 6 to 10. C: Add the material obtained in step B to the material obtained in step A and mix uniformly. D: After degassing the product obtained in step C above, fill it into a container to obtain a water-in-oil cream.
[0230] The water-in-oil cream of the present invention obtained in the above manner was smooth when applied, non-sticky, spread easily, and had excellent adhesion, good settling, and a natural finish with reduced shine.
[0231] Example 8: Liquid emulsion foundation (Component) (%) 1.KSG-710 (Note 1) 4.0 2.KSG-15 (Note 2) 2.0 3.KF-6105 (Note 3) 3.0 4.KF-96A-6cs (Note 4) 12.0 5. Disteardimonium Hectorite 1.2 6. Composite particles obtained in Example 3 3.0 7.KF-7312J (Note 5) 5.0 8. Isotridecyl isononanoate 2.0 9.KF-6106 (Note 6) 0.5 10.KTP-09W (Note 7) 8.5 11.KTP-09R (Note 7) 0.4 12.KTP-09Y (Note 7) 1.0 13.KTP-09B (Note 7) 0.1 14.Fragrance 0.1 15. Pentylene Glycol 5.0 16. Sodium citrate 0.2 17. Sodium chloride 0.5 18. Water Remaining Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of (70-80% dimethicone + 20-30% dimethicone / polyglycerin-3 crosspolymer) (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of (90-96% cyclopentasiloxane + 4-10% dimethicone / vinyl dimethicone crosspolymer) (Note 3) Shin-Etsu Chemical Co., Ltd.: Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Kinematic viscosity at 25°C is 6mm 2 / s Dimethicone (Note 5) Shin-Etsu Chemical Co., Ltd.: 50% trimethylsiloxysilicate dissolved in cyclopentasiloxane (Note 6) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone (Note 7) Shin-Etsu Chemical Co., Ltd.: Triethoxysilylethyl polydimethylsiloxyethylhexyl dimethicone-treated colored inorganic pigment, W: white, R: red, Y: yellow, B: black
[0232] (Manufacturing method) A: Mix ingredients 1 to 7. B: Mix ingredients 8 to 13 and roll. C: Add the material obtained in step B to the material obtained in step A and mix uniformly. D: Mix ingredients 14 to 18. E: Add the material obtained in the above step D to the material obtained in the above step C and mix uniformly. F: After degassing the product obtained in E above, it is filled into a container to obtain a liquid emulsified foundation.
[0233] The liquid emulsified foundation of the present invention obtained in the above manner had excellent smoothness and moisturizing properties when applied, was non-sticky, spread easily, and had excellent adhesion, good settling, and a natural finish with reduced shine.
[0234] Example 9: Powder Foundation (Component) (%) 1. Neopentyl glycol diethylhexanoate 4.0 2. Mineral Oil 2.0 3.KF-56A (Note 1) 2.0 4. Hexa(hydroxystearic acid / stearic acid / rosin acid) Dipentaerythrityl 0.2 5. Zinc stearate 1.0 6. Composite particles obtained in Example 3 5.0 7. Polymethylsilsesquioxane (Note 2) 3.0 8. Boron nitride 3.0 9. KF-99P treated mica (Note 3) 20.0 10. KF-99P treated talc (Note 3) remaining amount 11. AES-3083 treated pigment-grade titanium dioxide (white) (Note 4) 8.0 12. AES-3083 treated iron oxide (red) (Note 4) 0.4 13. AES-3083 treated iron oxide (yellow) (Note 4) 1.3 14. AES-3083 treated iron oxide (black) (Note 4) 0.3 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone (Note 2) Polymethylsilsesquioxane manufactured by Shin-Etsu Chemical Co., Ltd. (Note 3) Shin-Etsu Chemical Co., Ltd.: Methicone-treated (Note 4) Shin-Etsu Chemical Co., Ltd.: Triethoxycaprylylsilane treatment
[0235] (Manufacturing method) A: Mix ingredients 1 to 4 uniformly. B: Mix ingredients 5 to 14 uniformly. C: The material obtained in the above step A is added to the material obtained in the above step B and mixed. D: After passing the material obtained in the above C step through a sieve, it is pressed into a metal plate using a mold to form a powder. Got the foundation.
[0236] The powder foundation of the present invention obtained in the above manner had excellent smoothness and adhesion when applied, and provided a long-lasting cosmetic finish.
[0237] Example 10: Water-in-oil concealer (Component) (%) 1.KSG-210 (Note 1) 3.0 2.KSG-15 (Note 2) 5.0 3.KF-6028 (Note 3) 2.0 4.KF-96L-2cs (Note 4) remaining capacity 5. Composite particles obtained in Example 1 10.0 6.KP-545(Note 5) 3.0 7. Ethylhexyl palmitate 2.0 8.KP-578(Note 6) 0.3 9.KTP-09W (Note 7) 7.0 10.KTP-09R (Note 7) 0.2 11.KTP-09Y (Note 7) 0.8 12.KTP-09B (Note 7) 0.2 13.BG 5.0 14. Ethanol 8.0 15. Sodium citrate 0.2 16. Sodium chloride 0.5 17.Wednesday 30.0 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of (70-80% dimethicone + 20-30% dimethicone / PEG-10 / 15 crosspolymer) (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of (90-96% cyclopentasiloxane + 4-10% dimethicone / vinyl dimethicone crosspolymer) (Note 3) Shin-Etsu Chemical Co., Ltd.: PEG-9 Polydimethylsiloxyethyl Dimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Kinematic viscosity at 25°C is 2 mm 2 / s Dimethicone (Note 5) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Dimethicone) Copolymer 30% Cyclopentasiloxane Dissolved Product (Note 6) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Ethylhexyl Acrylate / Dimethicone Methacrylate) Copolymer (Note 7) Shin-Etsu Chemical Co., Ltd.: Triethoxysilylethyl polydimethylsiloxyethylhexyl dimethicone-treated colored inorganic pigment, W: white, R: red, Y: yellow, B: black
[0238] (Manufacturing method) A: Mix ingredients 1 to 6. B: Mix ingredients 7 to 12 and roll. C: Add the material obtained in step B to the material obtained in step A and mix uniformly. D: Mix ingredients 13 to 17. E: Add the material obtained in the above step D to the material obtained in the above step C and mix uniformly. F: After degassing the product obtained in E above, fill it into a container to obtain a water-in-oil concealer.
[0239] The water-in-oil concealer of the present invention obtained as described above was smooth and non-sticky when applied, had excellent adhesion, reduced shine, and provided a long-lasting makeup finish.
[0240] Example 11: Lipstick (Component) (%) 1. Polyethylene wax 5.0 2. Ceresin 2.0 3. Microcrystalline Wax 3.0 4. Candelilla Wax 1.0 5. Diisostearyl malate 15.0 6.KP-561P (Note 1) 2.0 7. Composite particles obtained in Example 3 12.0 8. Sorbitan sesquiisostearate 1.0 9. Polyglyceryl-2 Triisostearate 15.0 10. Remaining amount of caprylic / capric triglyceride 11. Triethylhexanoin 3.0 12.KP-578(Note 2) 0.5 13. Red No. 202 0.5 14. Yellow No. 4 Aluminum Lake 1.6 15. KP-574 treated pigment-grade titanium dioxide (white) (Note 3) 4.0 16. KP-574 treated iron oxide (red) (Note 3) 1.0 17. KP-574 treated iron oxide (yellow) (Note 3) 0.3 18. KP-574 treated iron oxide (black) (Note 3) 0.3 19. Titanium dioxide coated mica pearling agent 3.0 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Stearyl Acrylate / Dimethicone Methacrylate) Copolymer (Note 2) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Ethylhexyl Acrylate / Dimethicone Methacrylate) Copolymer (Note 3) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Tridecyl Acrylate / Triethoxysilylpropyl Methacrylate / Dimethicone Methacrylate) Copolymer Treatment
[0241] (Manufacturing method) A: Heat and dissolve ingredients 1 to 10. B: Mix ingredients 11 to 18 evenly and roll. C: The product obtained in step B and component 19 are added to the product obtained in step A and mixed uniformly. D: After degassing the product obtained in step C, fill it into a container to obtain a lipstick.
[0242] The lipstick of the present invention obtained in this manner was smooth when applied, spread easily without stickiness, had excellent adhesion, and had a matte finish with a good fit and reduced shine.
[0243] Example 12: Oil-in-water base cream (Component) (%) 1. Water remaining 2. Glycerin 3.0 3. Microcrystalline Wax 3.0 4. Xanthan gum 0.2 5. Pentylene Glycol 2.0 6.BG 5.0 7. Palm Fatty Acid Sucrose 0.2 8. Sorbitan stearate 3.0 9. PEG-60 Glyceryl Isostearate 0.5 10. Behenyl alcohol 0.5 11. Ethylhexyl palmitate 3.0 12. Composite particles obtained in Example 2 3.0 13. Triethylhexanoin 6.0 14. Polyhydroxystearic acid 0.5 15. Titanium dioxide fine particles treated with metal soap 8.0 16. Metal soap-treated pigment-grade titanium dioxide (white) 4.0 17. Metal soap treated iron oxide (red) 0.1 18. Metal soap treated iron oxide (yellow) 0.8 19. Metal soap treated iron oxide (black) 0.1 20. Polysorbate 60 0.3 21. (Hydroxyethyl acrylate / Sodium acryloyldimethyl taurate) Copolymer 0.6 Total 100.0
[0244] (Manufacturing method) A: Mix ingredients 1 to 6 evenly. B: Heat ingredients 7 to 11 to dissolve, add ingredient 12 and mix until homogenous. C: Mix ingredients 13 to 19 and roll. D: Add the material obtained in step C to the material obtained in step B and mix uniformly. E: The heated product obtained in the above step D is added to the heated product obtained in the above step A, and mixed uniformly. F: After cooling the product obtained in step E above to room temperature, ingredients 20 to 21 are added and mixed uniformly. do. G: After degassing the product obtained in the above F step, fill it into a container to make an oil-in-water base cream. obtain.
[0245] The oil-in-water base cream of the present invention obtained as described above had an excellent fresh feeling when applied, was non-sticky, spread easily, and had an excellent adhesion, good settling, and a matte finish with reduced shine.
[0246] Example 13: Aqueous gel (Component) (%) 1. Composite particles obtained in Example 3 5.0 2.KF-6100 (Note 1) 0.5 3. Ethanol 3.0 4.BG 4.0 5. Glycerin 2.0 6. (Acryloyldimethyltaurate ammonium / VP) copolymer 0.2 7. Xanthan gum 0.2g 8. Arginine 0.5 9. Phenoxyethanol 0.3 10. Water remaining Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 Disiloxane Dimethicone
[0247] (Manufacturing method) A: Mix ingredients 1 to 3 evenly. B: Mix ingredients 4 to 10 evenly. C: Add the material obtained in step A to the material obtained in step B and mix uniformly. D: The product obtained in step C above is degassed and then filled into a container to obtain an aqueous gel.
[0248] The aqueous gel of the present invention obtained in the above manner had an excellent fresh feeling when applied, was non-sticky, spread easily, had excellent adhesion, and had a matte finish with good settling and reduced gloss.
[0249] Example 14: Oily gel (Component) (%) 1. Composite particles obtained in Example 1 10.0 2.KSG-16 (Note 1) 20.0 3.KSG-15 (Note 2) 30.0 4.KF-56A (Note 3) 5.0 5.KF-995 (Note 4) remaining capacity Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of (70-80% dimethicone + 20-30% dimethicone / vinyl dimethicone crosspolymer) (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of (90-96% cyclopentasiloxane + 4-10% dimethicone / vinyl dimethicone crosspolymer) (Note 3) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Cyclopentasiloxane
[0250] (Manufacturing method) A: Mix ingredients 1 to 5 uniformly. B: The product obtained in step A above is degassed and then filled into a container to obtain an oily gel.
[0251] The oily gel of the present invention obtained in the above manner was smooth when applied, non-sticky, spread easily, had excellent adhesion, and provided a matte finish with good settling and reduced gloss.
[0252] Example 15: Oily solid foundation (Component) (%) 1. Synthetic Wax 4.0 2. Carnauba Wax 2.0 3. Shea butter 0.5 4. Caprylic / Capric Triglyceride 3.0 5.KF-56A (Note 1) 5.0 6. Ethylhexyl methoxycinnamate 7.0 7. Bis-ethylhexyloxyphenol methoxyphenyl triazine 0.5 8.KF-96L-2cs (Note 2) 5.0 9. Remaining amount of isotridecyl isononanoate 10. Composite particles obtained in Example 2 4.0 11.KMP-591 (Note 3) 1.0 12. Cetyl ethylhexanoate 3.0 13.KF-6115 (Note 4) 1.0 14. KF-99P treated fine particle titanium dioxide (Note 5) 7.0 15.KTP-09W (Note 6) 9.0 16.KTP-09R (Note 6) 0.3 17.KTP-09Y(Note 6) 1.0 18.KTP-09B (Note 6) 0.2 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone (Note 2) Shin-Etsu Chemical Co., Ltd.: Kinematic viscosity at 25°C is 2 mm 2 / s Dimethicone (Note 3) Polymethylsilsesquioxane manufactured by Shin-Etsu Chemical Co., Ltd. (Note 4) Shin-Etsu Chemical Co., Ltd.: Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone (Note 5) Shin-Etsu Chemical Co., Ltd.: Methicone-treated (Note 6) Shin-Etsu Chemical Co., Ltd.: Triethoxysilylethyl polydimethylsiloxyethylhexyl dimethicone-treated colored inorganic pigment, W: white, R: red, Y: yellow, B: black
[0253] (Manufacturing method) A: Heat and dissolve ingredients 1 to 9. B: Mix ingredients 12 to 18 evenly and roll. C: The mixture obtained in the above step B and components 10 to 11 was heated to obtain the mixture obtained in the above step A. Add to the mixture and mix evenly. D: After degassing the material obtained in step C above, fill it into a container while it is still hot and cool it to room temperature. Instead, an oily solid foundation is obtained.
[0254] The oil-based solid foundation of the present invention obtained in the above manner was extremely excellent in that it spread easily, settled well on the skin, gave a moist finish, and produced a firm makeup film with a subdued sheen, and the makeup lasted well.
[0255] Example 16: Oily foundation (Component) (%) 1.KSG-42A (Note 1) 10.0 2. Composite particles obtained in Example 3 6.0 3.KF-6104 (Note 2) 4.0 4. Disteardimonium Hectorite 1.5 5. Silica silylate 1.0 6. TSPL-30-ID (Note 3) 2.0 7.KF-96A-6cs (Note 4) 5.0 8. Ethanol 8.0 9. Isododecane remaining 10. Isotridecyl isononanoate 10.0 11.KP-578(Note 5) 0.5 12. KF-9901 treated fine particle titanium dioxide (Note 6) 8.0 13. KF-9901-treated fine particle zinc oxide (Note 6) 5.0 14. AES-3083 treated pigment-grade titanium dioxide (Note 7) 7.5 15. AES-3083 treated iron oxide (red) (Note 7) 0.4 16. AES-3083 treated iron oxide (yellow) (Note 7) 1.2 17. AES-3083 treated iron oxide (black) (Note 7) 0.1 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of (75-85% isododecane + 15-25% vinyl dimethicone / lauryl dimethicone crosspolymer) (Note 2) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone (Note 3) Shin-Etsu Chemical Co., Ltd.: 30% tri(trimethylsiloxy)silylpropylcarbamate pullulan dissolved in isododecane (Note 4) Shin-Etsu Chemical Co., Ltd.: Kinematic viscosity at 25°C is 6mm 2 / s Dimethicone (Note 5) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Ethylhexyl Acrylate / Dimethicone Methacrylate) Copolymer (Note 6) Shin-Etsu Chemical Co., Ltd.: Hydrogen dimethicone treatment (Note 7) Shin-Etsu Chemical Co., Ltd.: Triethoxycaprylylsilane treatment
[0256] (Manufacturing method) A: Mix ingredients 1 to 9 uniformly. B: Mix ingredients 10 to 17 uniformly and roll. C: Add the material obtained in step B to the material obtained in step A and mix uniformly. D: After degassing the product obtained in the above step C, it is filled into a container to obtain an oily foundation. do.
[0257] The oil-based foundation of the present invention obtained in the above manner spreads lightly, settles well on the skin, gives a moist finish, and produces a firm makeup film with a subdued sheen, and the makeup lasts well, making it extremely excellent.
[0258] Example 17: Oily mascara (Component) (%) 1. Paraffin wax 20.0 2. Microcrystalline wax 8.0 3. Polyethylene wax 3.0 4. Inulin stearate 1.0 5. Disteardimonium Hectorite 2.0 6.KF-6028 (Note 1) 1.0 7.NBN-30-ID(Note 2) 3.0 8. Hydrogenated polyisobutene remaining amount 9. Composite particles obtained in Example 3 2.0 10. Neopentyl glycol dicaprate 5.0 11.KF-6115 (Note 3) 1.0 12.KTP-09W (Note 4) 0.5 13.KTP-09B (Note 4) 6.0 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: PEG-9 Polydimethylsiloxyethyl Dimethicone (Note 2) Shin-Etsu Chemical Co., Ltd.: Norbornene / tris(trimethylsiloxy)silylnorbornene copolymer 30% dissolved in isododecane (Note 3) Shin-Etsu Chemical Co., Ltd.: Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Triethoxysilylethyl polydimethylsiloxyethylhexyl dimethicone-treated colored inorganic pigment, W: white, B: black
[0259] (Manufacturing method) A: Heat and dissolve ingredients 1 to 8. B: Mix ingredients 10 to 13 uniformly and roll. C: Add the mixture obtained in step B and ingredient 9 to the mixture obtained in step A that has been heated and mix evenly. D: After degassing the product obtained in the above step C, it is cooled to room temperature and then filled into a container to form an oily mass. Get Kara.
[0260] The oil-based mascara of the present invention obtained as described above was found to be extremely excellent in that it was smooth to apply, was not sticky, spread easily, had excellent adhesion, gave a well-fitting finish with a subdued shine, did not smudge, and lasted well.
[0261] Example 18: Loose Powder (Component) (%) 1. Composite particles obtained in Example 2 10.0 2. KF-9901 treated synthetic fluorophlogopite (Note 1) 25.0 3. KF-9901 treated talc (Note 1) remaining amount 4. Lauroyl Lysine 5.0 5. Boron nitride 3.0 6. Titanium oxide coated mica pearling agent 3.0 7. AES-3083 treated titanium dioxide (Note 2) 3.0 8. AES-3083 treated red iron oxide (Note 2) 0.2 9. AES-3083 treated yellow iron oxide (Note 2) 0.5 10. AES-3083 treated black iron oxide (Note 2) 0.1 11. Isononyl isononanoate 2.0 12. Ethylhexylglycerin 0.5 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Hydrogen dimethicone treatment (Note 2) Shin-Etsu Chemical Co., Ltd.: Triethoxycaprylylsilane treatment
[0262] (Manufacturing method) A: Mix ingredients 1 to 10 evenly. B: Mix ingredients 11 and 12 evenly. C: Add the material obtained in step B to the material obtained in step A and mix uniformly. D: The material obtained in step C above is passed through a sieve and then filled into a container to obtain loose powder.
[0263] The loose powder of the present invention obtained as described above was found to be extremely excellent in that it was smooth to the touch when applied, gave a subdued glossy finish, and provided long-lasting makeup.
[0264] Example 19: Sunscreen lotion (Component) (%) 1.KSG-270 (Note 1) 3.0 2.KSG-18A (Note 2) 3.0 3.KF-6048 (Note 3) 2.0 4.KF-56A (Note 4) 5.0 5.KF-4422 (Note 5) remaining capacity 6. Ethylhexyl methoxycinnamate 5.0 7. Ethylhexyl salicylate 2.0 8. Octocrylene 1.0 9. Diethylaminohydroxybenzoylhexyl benzoate 2.0 10. Composite particles obtained in Example 1 5.0 11.SPD-T5 (Note 6) 10.0 12.SPD-Z5 (Note 7) 10.0 13.BG 3.0 14. Ethanol 5.0 15. Sodium citrate 0.2 16. Sodium chloride 0.5 17.Wednesday 20.0 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Mixture of (Diphenylsiloxyphenyl Trimethicone 75-85% + (Dimethicone / (PEG-10 / 15)) Crosspolymer 15-25%) (Note 2) Shin-Etsu Chemical Co., Ltd.: Mixture of (Diphenylsiloxyphenyl trimethicone 80-90% + (Dimethicone / Phenylvinyldimethicone) Crosspolymer 10-20%) (Note 3) Shin-Etsu Chemical Co., Ltd.: Cetyl PEG / PPG-10 / 1 Dimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone (Note 5) Shin-Etsu Chemical Co., Ltd.: Ethyl trimethicone (Note 6) Shin-Etsu Chemical Co., Ltd.: 40% fine titanium dioxide particle dispersion in cyclopentasiloxane (Note 7) Shin-Etsu Chemical Co., Ltd.: 60% zinc oxide fine particle dispersion in cyclopentasiloxane
[0265] (Manufacturing method) A: Mix ingredients 1 to 10 evenly. B: Mix ingredients 13 to 17 evenly. C: Add the material obtained in step B to the material obtained in step A and mix uniformly. D: Components 11 and 12 are added to the mixture obtained in step C above and mixed uniformly. E: The product obtained in step D above is degassed and then filled into a container to obtain a sunscreen emulsion.
[0266] The sunscreen emulsion of the present invention obtained as described above was found to be extremely excellent in that it had excellent smoothness when applied, gave a subdued glossy finish, and provided long-lasting makeup.
[0267] Example 20: Sunscreen lotion (Component) (%) 1.KSG-210 (Note 1) 3.5 2.KSG-18A (Note 2) 3.0 3.KF-6038 (Note 3) 0.5 4.KF-56A (Note 4) 5.0 5. Ethylhexyl methoxycinnamate 7.5 6.KF-995 (Note 5) 6.5 7. Composite particles obtained in Example 3 5.0 8.BG 5.5 9. Sodium citrate 0.2 10. Sodium chloride 0.5 11.Wednesday 62.8 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of (70-80% dimethicone + 20-30% dimethicone / PEG-10 / 15 crosspolymer) (Note 2) Shin-Etsu Chemical Co., Ltd.: Mixture of (Diphenylsiloxyphenyl trimethicone 80-90% + (Dimethicone / Phenylvinyldimethicone) Crosspolymer 10-20%) (Note 3) Shin-Etsu Chemical Co., Ltd.: Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone (Note 5) Shin-Etsu Chemical Co., Ltd.: Cyclopentasiloxane
[0268] (Manufacturing method) A: Mix ingredients 1 to 7 evenly. B: Mix ingredients 8 to 11 evenly. C: Add the material obtained in step B to the material obtained in step A and mix uniformly. D: The product obtained in step C above is degassed and then filled into a container to obtain a sunscreen emulsion.
[0269] The sunscreen emulsion of the present invention obtained as described above was found to be extremely excellent in that it had excellent smoothness when applied, gave a subdued glossy finish, and provided long-lasting makeup.
[0270] Example 21: Non-aqueous deodorant cream (Component) (%) 1. Trichlorohydrex Glycine (Al / Zirconium) 19.0 2.KF-4422 (Note 1) 30.0 3.KSG-15 (Note 2) 21.5 4. Composite particles obtained in Example 3 10.0 5. Neopentyl glycol dioctanoate 9.68 6.Fragrance 0.1 7. BHT 0.02 8. Citric acid 0.1 9. Benzyl alcohol 0.1 10. Silica dimethyl silylate 0.5 11. Polyethylene 3.0 12. Ceresin 6.0 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Ethyl trimethicone (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of (90-96% cyclopentasiloxane + 4-10% dimethicone / vinyl dimethicone crosspolymer)
[0271] (Manufacturing method) A: Heat ingredients 2, 3, 5, 7, 9, 11, and 12 and mix uniformly. B: Add component 10 to the mixture obtained in step A above, and mix using a mixer to disperse evenly. C: Add ingredients 1, 4, and 8 to the mixture obtained in step B above and mix evenly. D: Add ingredient 6 to the mixture obtained in step C above, mix evenly, and then fill into a container.
[0272] The deodorant cream obtained in this manner was a non-aqueous deodorant cream that spread very smoothly and had good spreadability, was not excessively dry or sticky, and had excellent durability of deodorizing effect.
[0273] As described above, the present invention can provide composite particles formed by adhering rubber particles to the surfaces of organic resin particles, which can impart the effects of a soft feel, smooth texture, extensibility, and light scattering properties, resulting in a natural finish; a method for producing the composite particles; and a cosmetic containing the composite particles.
[0274] This specification includes the following inventions. [1]: Composite particles in which rubber particles are attached to the surface of spherical organic resin particles, The particles are fixed to the organic resin particles using silica as a binder. Characteristic composite particles. [2]: The amount of the rubber particles is 0.1 to 100 parts by mass relative to 100 parts by mass of the organic resin particles. The composite particles according to the above [1], characterized in that the amount of the composite particles is in the range of parts. [3]: The amount of the silica is 10 to 1,000 parts by mass relative to 100 parts by mass of the rubber particles. The composite particle according to [1] or [2] above, characterized in that the range is: [4]: The above [1], characterized in that the rubber particles are silicone rubber particles. [2] or the composite particle according to [3] above. [5]: The above [1], wherein the organic resin particles are cellulose particles. [2] The composite particle according to [3] or [4] above. [6]: A compound according to [1], [2], [3], [4], or [5] above. A method for producing composite particles, comprising: A mixture of the substance, an alkaline substance, and water is added with tetraalkoxysilane. and subjecting the compound to a hydrolysis-condensation reaction, The thionic substance is mixed with a cationic surfactant and / or a cationic water-soluble polymer. A method for producing composite particles, characterized by: [7]: The cationic substance is a cationic surfactant and a cationic water-soluble polymer. The method for producing composite particles according to [6] above, characterized by: [8]: The amount of the cationic substance to be blended is 0.0 with respect to 100 parts by mass of water in the mixed solution. [6] or [7], characterized in that the range is 0.01 to 2.0 parts by mass. A method for producing the composite particles described above. [9]: The amount of the cationic surfactant blended is, relative to 100 parts by mass of water in the mixed solution, 0.001 to 1.9 parts by mass, and the amount of the cationic water-soluble polymer blended is The amount of the compound is in the range of 0.0001 to 1.0 parts by mass relative to 100 parts by mass of water in the above mixture. The composite particles according to [6], [7], or [8] above, Manufacturing method.
[10] : The method according to [1], [2], [3], [4], or [5] above. A cosmetic preparation characterized by containing composite particles.
[0275] The present invention is not limited to the above-described embodiments, which are merely examples, and anything that has substantially the same configuration as the technical idea described in the claims of the present invention and that provides similar effects is included within the technical scope of the present invention.
Claims
1. Composite particles in which silicone rubber particles are attached to the surfaces of spherical cellulose particles, the silicone rubber particles being fixed to the cellulose particles using silica as a binder; the amount of the silicone rubber particles is in the range of 0.1 to 100 parts by mass relative to 100 parts by mass of the cellulose particles; The composite particles are characterized in that the amount of the silica is in the range of 10 to 1,000 parts by mass per 100 parts by mass of the silicone rubber particles.
2. A method for producing composite particles according to claim 1, a method for producing composite particles, the method comprising adding tetraalkoxysilane to a mixed liquid containing the cellulose particles, the silicone rubber particles, a cationic substance, an alkaline substance, and water, and subjecting the mixed liquid to a hydrolysis and condensation reaction; A method for producing composite particles, wherein the cationic substance is a cationic surfactant and / or a cationic water-soluble polymer.
3. 3. The method for producing composite particles according to claim 2, wherein the cationic substance is a cationic surfactant and a cationic water-soluble polymer.
4. 3. The method for producing composite particles according to claim 2, wherein the amount of the cationic substance blended is in the range of 0.0001 to 2.0 parts by mass per 100 parts by mass of water in the mixed solution.
5. 5. The method for producing composite particles according to claim 2, wherein the amount of the cationic surfactant is in the range of 0.001 to 1.9 parts by mass relative to 100 parts by mass of water in the mixed solution, and the amount of the cationic water-soluble polymer is in the range of 0.0001 to 1.0 part by mass relative to 100 parts by mass of water in the mixed solution.
6. A cosmetic characterized by containing the composite particles described in claim 1.
Citation Information
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