Water-in-oil cosmetic
By mixing highly oil-absorbing silicone powder into the internal water phase in water-in-oil cosmetics, and combining specific types of crosslinked silicones and surfactants, the problem of reducing makeup effects over time and emulsifying difficulties is solved, and excellent results of stability, ductility and sustainability are achieved.
Patent Information
- Application Number
- CN202380066082.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-13
- Filing Date
- 2023-09-07
- Publication Date
- 2025-04-25
AI Technical Summary
After application, the makeup effect of existing cosmetics is reduced with time due to the influence of sebum, and the problems of makeup removal and secondary adhesion are serious. Combining oil-absorbing powder in water-in-oil cosmetics will lead to increased viscosity of emulsions, reduced application ductility, and emulsification becomes difficult.
In water-in-oil cosmetics, a stable emulsification system is formed by mixing highly oil-absorbing silicone powder into the internal aqueous phase, combining partially crosslinked polyether modified silicone and partially crosslinked polyglycerol modified silicone and non-crosslinked silicone surfactant.
It realizes the stability and ductility of cosmetics, maintains a good sense of use and appearance, and can effectively absorb oil when applied on top, extending the sustainability of the makeup effect.
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Abstract
Description
Technical Field
[0001] The present invention relates to a water-in-oil cosmetic. Background Art
[0002] Conventionally, makeup cosmetics are required to have a long-lasting makeup effect. However, after applying makeup cosmetics, due to the influence of sebum secreted from the skin, there are problems such as makeup removal over time and easy secondary adhesion, which reduce the makeup effect. In order to solve these problems, there are methods such as mixing oil-absorbing powders or applying makeup that absorbs sebum as base makeup.
[0003] Patent Document 1 proposes to mix an oil-absorbing powder in order to improve the durability of a color cosmetic applied in layers. However, there is no research on mixing an oil-absorbing powder in the internal water phase of a water-in-oil cosmetic. When the oil-absorbing powder is mixed in the oil phase, the oil in the oil phase is absorbed, so there is a problem that the viscosity of the emulsion increases and the ductility during application decreases.
[0004] On the other hand, it is known that cross-linked polyether-modified silicone can be used to prepare a highly water-containing and large-particle emulsion to obtain a water-in-oil cosmetic with a moist feel (Patent Documents 2, 3, and 4). In particular, since there is little oil phase in these formulations, when an oil-absorbing powder is mixed into the oil phase, emulsification becomes difficult.
[0005] Prior art literature
[0006] Patent Literature
[0007] Patent Document 1: International Publication No. 2019 / 176555
[0008] Patent Document 2: Japanese Patent Application Publication No. 2001-002521
[0009] Patent Document 3: Japanese Patent Application Publication No. 2011-219448
[0010] Patent Document 4: International Publication No. 2018 / 221174 Summary of the invention
[0011] Problem that the invention aims to solve
[0012] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cosmetic with high aesthetic value that is excellent in stability, makeup appearance, and spreadability during application, and has excellent durability of a makeup cosmetic when applied in layers.
[0013] Solutions for solving problems
[0014] The present inventors have conducted intensive studies to achieve the above-mentioned object, and as a result, have found that in a water-in-oil cosmetic comprising at least one selected from partially cross-linked polyether-modified silicones and partially cross-linked polyglycerol-modified silicones, a non-cross-linked silicone surfactant, and a highly oil-absorbing silicone powder, by blending the highly oil-absorbing silicone powder into the internal water phase, the obtained cosmetic has good stability and good ductility, a good and non-greasy feel during use of the makeup, and excellent appearance and aesthetics of the makeup, and can absorb oil from sebum and the like even when applied over a foundation or other makeup cosmetic, and exhibits high durability, thereby completing the present invention.
[0015] Therefore, the present invention provides the following water-in-oil cosmetic and a method for producing the same.
[0016] [1] A water-in-oil cosmetic comprising an oil, the following component (A), component (B) and component (C), wherein the aqueous phase component comprises the following component (C),
[0017] (A) one or more selected from partially cross-linked polyether-modified silicones and partially cross-linked polyglycerol-modified silicones, wherein the content of the silicone in the cosmetic is 0.1 to 4% by mass;
[0018] (B) a non-crosslinked silicone surfactant, which is present in the cosmetic in an amount of 0.05 to 1.5% by mass;
[0019] (C) Silicone powder, which absorbs 30 parts by mass or more of squalane or ethylhexyl palmitate based on 100 parts by mass of the powder, and the content in the cosmetic is 0.5 to 10% by mass.
[0020] [2] The water-in-oil cosmetic according to [1], wherein
[0021] The amount of the aqueous phase component including the component (C) in the cosmetic is 30 to 90% by mass.
[0022] [3] The water-in-oil cosmetic according to [1] or [2], wherein
[0023] The component (C) is dispersed in the internal water phase.
[0024] [4] The water-in-oil cosmetic according to any one of [1] to [3], wherein
[0025] The silicone powder absorbs 30 parts by mass or more of squalane or ethylhexyl palmitate based on 100 parts by mass of the silicone powder by immersion at 25° C. for 24 hours.
[0026] [5] The water-in-oil cosmetic according to any one of [1] to [4], wherein
[0027] The silicone powder is silicone rubber particles or silicone resin-coated silicone rubber powder.
[0028] [6] The water-in-oil cosmetic according to any one of [1] to [5], wherein
[0029] The silicone powder is silicone rubber particles which are addition reaction products of (C-1) organohydrogenpolysiloxane and (C-2) organopolysiloxane containing alkenyl groups.
[0030] The silicone rubber particles are characterized in that one or more components selected from the component (C-1) and the component (C-2) have an alkyl group having 6 to 30 carbon atoms bonded to the silicon atom in an amount of 5 to 70 mol% based on the total molar number of all substituents bonded to the silicon atom.
[0031] [7] The water-in-oil cosmetic according to [6], wherein
[0032] In the silicone rubber particles, the component (C-1) has an alkyl group having 6 to 30 carbon atoms bonded to the silicon atom at 5 to 70 mol % based on the total molar number of all substituents bonded to the silicon atom.
[0033] [8] The water-in-oil cosmetic according to [6], wherein
[0034] The component (C-1) is an organohydrogenpolysiloxane represented by the following formula (1) having two or more hydrogen atoms bonded to silicon atoms in one molecule.
[0035] [Chemical formula 1]
[0036]
[0037] (Where R 1 are groups independently selected from alkyl groups having 1 to 5 carbon atoms, aryl groups having 6 to 20 carbon atoms, and aralkyl groups having 7 to 20 carbon atoms, and R 1 ' is an alkyl group having 6 to 30 carbon atoms, q1 and q2 are each independently an integer of 1 to 60, p is an integer of 2 to 20, and the bonding of the siloxane units enclosed by p, q1 and q2 may be block or random), and
[0038] The component (C-2) is an organopolysiloxane having two or more alkenyl groups in one molecule represented by the following formula (2):
[0039] [Chemical formula 2]
[0040]
[0041] (Where R1 ' is an alkyl group having 6 to 30 carbon atoms, R 2 are groups independently selected from alkyl groups having 1 to 5 carbon atoms, aryl groups having 6 to 20 carbon atoms, and aralkyl groups having 7 to 20 carbon atoms, and R 3 is an alkenyl group having 2 to 6 carbon atoms, n1 is an integer of 1 to 40, n2 is an integer of 0 to 50, m is an integer of 0 to 10, k1 and k2 are integers of 0 to 3 respectively, but m+k1+k2 is an integer greater than 2. In addition, the bonding of the siloxane units enclosed by m, n1 and n2 may be block or random),
[0042] The amount of the component (C-2) is such that the ratio of the number of moles of the alkenyl groups in the component (C-2) to 1 mol of the hydrosilyl groups in the component (C-1) is 0.5 to 2.
[0043] [9] The water-in-oil cosmetic according to [6], wherein
[0044] The silicone rubber particles further include (C-3) a platinum group metal catalyst in addition to the (C-1) component and the (C-2) component.
[0045]
[10] The water-in-oil cosmetic according to any one of claims 6 to 9, wherein
[0046] An aqueous dispersion of silicone rubber particles according to any one of [6] to [9], wherein the aqueous dispersion comprises:
[0047] The silicone rubber particles are 5 to 80% by mass;
[0048] A surfactant, which is 0.01 to 15% by mass; and
[0049] Water: 19 to 94% by mass.
[0050]
[11] The water-in-oil cosmetic according to any one of [1] to [4], wherein
[0051] The silicone powder is spherical silicone rubber particles having a volume average particle size of 0.1 to 100 μm.
[0052]
[12] The water-in-oil cosmetic according to [5], wherein
[0053] The silicone rubber particles are defined by the cosmetic label name (vinyl dimethicone / lauryl dimethicone) crosspolymer.
[0054]
[13] The water-in-oil cosmetic according to [5], wherein
[0055] The silicone resin coated silicone rubber powder is defined by the cosmetic label name as (vinyl dimethicone / polymethylsiloxane silsesquioxane) cross polymer, (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) cross polymer, polysilicone-22, and polysilicone-1 cross polymer.
[0056]
[14] The water-in-oil cosmetic according to [5], wherein
[0057] The silicone resin coated silicone rubber powder is a (vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane) cross polymer defined by the cosmetic label name, and is a silicone resin coated silicone rubber powder after the surface is hydrophilized.
[0058]
[15] The water-in-oil cosmetic according to any one of [1] to
[14] , wherein
[0059] The cosmetic contains (E) a volatile oil agent as the oil agent in an amount of 1 to 95% by mass.
[0060]
[16] The water-in-oil cosmetic according to any one of [1] to
[15] , wherein
[0061] Furthermore, the cosmetic contains (F) a partially crosslinked organopolysiloxane whose crosslinking segments are siloxane chains in an amount of 0.01 to 30% by mass.
[0062]
[17] The water-in-oil cosmetic according to any one of [1] to
[16] , wherein
[0063] The water-in-oil cosmetic is a water-releasing cosmetic.
[0064]
[18] The water-in-oil cosmetic according to any one of [1] to
[17] , wherein
[0065] The water-in-oil cosmetic is a base cosmetic.
[0066]
[19] A method for producing a water-in-oil cosmetic, wherein:
[0067] The method comprises the steps of adding a water phase component containing the following components (C) and (D) to an oil phase component containing an oil agent, the following component (A) and the following component (B), and stirring the mixture to prepare an emulsion.
[0068] (A) one or more selected from partially cross-linked polyether-modified silicones and partially cross-linked polyglycerol-modified silicones, in an amount of 0.1 to 4% by mass in the cosmetic;
[0069] (B) non-crosslinked silicone, which is present in an amount of 0.05 to 1.5% by mass in the cosmetic,
[0070] (C) a silicone powder which absorbs 30 parts by mass or more of squalane or ethylhexyl palmitate relative to 100 parts by mass of the powder, and the amount thereof is 0.5 to 10% by mass in the cosmetic;
[0071] (D) An aqueous component is an amount such that the amount of the aqueous phase component including the component (C) in the cosmetic is 30 to 90% by mass.
[0072] Effects of the Invention
[0073] According to the present invention, it is possible to provide a cosmetic material with high aesthetic value that is excellent in stability, makeup appearance, and spreadability during application, and has excellent durability when applied in layers. DETAILED DESCRIPTION
[0074] Hereinafter, the present invention will be described in detail. In the present invention, ingredient names may be described as cosmetic label names.
[0075] [(A) ingredient]
[0076] The component (A) is one or more selected from partially cross-linked polyether-modified silicones and partially cross-linked polyglycerol-modified silicones. These are partially cross-linked modified silicones having polyether chains and polyglycerol chains as cross-linking segments, respectively. By mixing the component (A) into a cosmetic, a cosmetic with good stability can be obtained, which can be emulsified even in a high internal water phase.
[0077] As partially cross-linked polyether-modified silicone, there is no particular limitation as long as it is a three-dimensional cross-linked product formed by cross-linking an organic polysiloxane chain through a polyether. Partially cross-linked polyether-modified silicone can be a well-known compound mixed into a cosmetic, for example, known by the label name of (polydimethylsiloxane / (PEG-10 / 15)) crosspolymer. They are commercially available as swollen products containing silicone oil and other oils, for example, they are commercially available under the trade names of KSG-210, 240, 270, etc. (all manufactured by Shin-Etsu Chemical Co., Ltd.). As a cross-linked product having an alkyl branch in the main chain (alkyl-modified, partially cross-linked polyether-modified silicone), for example, (PEG-15 / lauryl dimethicone) crosspolymer, (PEG-15 / lauryl dimethylsiloxyethyl dimethicone) crosspolymer, etc. can be listed. These are commercially available as swollen products containing silicone oil or other oils, and examples thereof include KSG-310, 310Z, 330, 340, 320Z, 350Z, and 360Z (all manufactured by Shin-Etsu Chemical Co., Ltd.).
[0078] As a partially cross-linked polyglycerol-modified silicone, there is no particular limitation as long as it is a three-dimensional cross-linked product formed by cross-linking an organic polysiloxane chain through polyglycerol. The partially cross-linked polyglycerol-modified silicone can be a known compound mixed into a cosmetic, for example, known by the label name such as (polydimethylsiloxane / polyglycerol-3) cross polymer. They are commercially available as swollen products containing silicone oil and other oils, for example, they are commercially available under the trade name of KSG-710 (manufactured by Shin-Etsu Chemical Co., Ltd.). As a cross-linked product having an alkyl branch in the main chain, for example, (lauryl polydimethylsiloxane / polyglycerol-3) cross polymer, (polyglycerol-3 / lauryl polydimethylsiloxyethyl polydimethylsiloxane) cross polymer, etc. can be listed. These are commercially available as swelling products containing silicone oil or other oils, for example, under the trade names of KSG-810, 820, 820Z, 830, 840, 850Z, etc. (all manufactured by Shin-Etsu Chemical Co., Ltd.).
[0079] The amount of component (A) is 0.1 to 4% by weight, preferably 0.2 to 2% by weight of the total cosmetic material. If it is less than 0.1% by weight, the emulsification stability of the cosmetic material will decrease, and if it is more than 4% by weight, the moisturizing property will be lost, which may impair the feeling of use during application.
[0080] The component (A) can be used alone or in combination of two or more thereof. For example, in a combination of a partially cross-linked polyether-modified silicone and a partially cross-linked polyglycerol-modified silicone, when the relative blending ratio of the partially cross-linked polyether-modified silicone is high, the ductility of the cosmetic tends to be improved, and when the relative blending ratio of the partially cross-linked polyglycerol-modified silicone is high, the cosmetic tends to have a moist and soft feel during use. By appropriately determining the blending ratio, the feel during use can be controlled.
[0081] [(B) ingredient]
[0082] (B) component is a non-crosslinked silicone surfactant. By mixing (B) component, the storage stability of the cosmetic can be adjusted, or the feeling of use can be adjusted by adjusting the emulsified particle size. As long as it is a non-crosslinked silicone surfactant that can be mixed in a common cosmetic, it is not particularly limited, and can be used alone or in a suitable combination of two or more. Among these surfactants, preferably linear or branched polyoxyethylene modified organopolysiloxane, linear or branched polyoxyethylene polyoxypropylene modified organopolysiloxane, linear or branched polyglycerol modified organopolysiloxane, linear or branched polyoxyethylene-alkyl co-modified organopolysiloxane, linear or branched polyoxyethylene polyoxypropylene-alkyl co-modified organopolysiloxane, acrylic silicone graft copolymer, etc. Specific examples include polyether-modified silicones such as KF-6011, 6013, 6043, 6017, and 6017P, silicone-branched polyether-modified silicones such as KF-6028 and 6028P, silicone-branched polyglycerol-modified silicones such as KF-6100, 6104, and 6106, acrylic silicone-based graft copolymers such as KP-578, silicone / alkyl-branched polyether-modified silicones such as KF-6038, alkyl-branched polyether-modified silicones such as KF-6048, silicone / alkyl-branched polyglycerol-modified silicones such as KF-6105 and KF-6115, etc. (all manufactured by Shin-Etsu Chemical Co., Ltd.).
[0083] The amount of component (B) is 0.05 to 1.5% by mass, preferably 0.1 to 1.0% by mass, and more preferably 0.2 to 0.8% by mass of the total amount of the cosmetic of the present invention. When the amount is 0.05% by mass or more, the emulsification stability of the cosmetic is further improved, and when the amount is 1.5% by mass or less, a more moist feeling and a good feeling when applied can be obtained.
[0084] [(C) ingredient]
[0085] Component (C) is a highly oil-absorbing silicone powder. Silicone powders can be used alone or in combination of two or more. By mixing component (C), sebum and excess oil can be absorbed to improve the durability of makeup and achieve a makeup with excellent appearance and touch.
[0086] The highly oil-absorbing silicone powder can absorb 30 parts by mass or more of at least one of hydrocarbon oil or ester oil relative to 100 parts by mass of the component (C), preferably 60 parts by mass or more, and more preferably 80 parts by mass or more. When the absorption amount of hydrocarbon oil and ester oil, which are sebum-like components, is less than 30 parts by mass, sufficient anti-transfer and persistence may not be obtained, and the touch becomes heavy. In addition, the upper limit of the absorption amount is not particularly limited, and the absorption amount can be practically 500 parts by mass or less, especially 300 parts by mass or less. In particular, in the present invention, a silicone powder that absorbs 30 parts by mass or more of squalane or ethylhexyl palmitate relative to 100 parts by mass of silicone powder is regarded as a "highly oil-absorbing" silicone powder.
[0087] In the present invention, the silicone powder is preferably composed of the above-mentioned silicone rubber or silicone elastomer having high oil absorption. That is, in the present invention, the (C) component is a powder composed of silicone rubber or silicone elastomer, preferably a powder composed of the silicone rubber or silicone elastomer that absorbs 30 parts by mass or more, preferably 60 parts by mass or more, and more preferably 80 parts by mass or more of at least one oily substance selected from the group consisting of hydrocarbon oils or ester oils, in particular squalane or ethylhexyl palmitate, relative to 100 parts by mass of the silicone rubber or silicone elastomer. The upper limit of the absorption amount is as described above.
[0088] The oil absorption is more preferably expressed as a value per 100 g of silicone rubber, which is the amount of oily substance absorbed by the silicone rubber when the silicone rubber is immersed in the oily substance at 25° C. for 24 hours. More specifically, the amount of oily substance absorbed by a 1 mm thick sheet (particularly a 1 mm thick sheet, 30 mm square) composed of a silicone rubber cured product constituting silicone powder when immersed in the oily substance at 25° C. for 24 hours is set as a value per 100 g of the silicone rubber, and the value is expressed as the oil absorption.
[0089] Furthermore, for silicone powder whose oil absorption could not be measured by the above method, the oil absorption was determined by the following method.
[0090] The silicone powder and the oily substance are placed in a glass bottle and shaken for 15 minutes, then left to stand at 25°C for 24 hours, and the solid content is separated by a pressure filter, and the mass of the solid content is measured. The mass of the silicone powder before oil absorption is subtracted from the mass of the solid content, and the value is converted to a value per 100g of silicone powder.
[0091] The hydrocarbon oil and ester oil as oily substances are hydrocarbon oils and ester oils used as cosmetic raw materials. Examples of hydrocarbon oils include straight-chain or branched hydrocarbon oils, and may be volatile hydrocarbon oils or non-volatile hydrocarbon oils. Examples of hydrocarbon oils include squalanes such as synthetic squalane and plant squalane, squalene, light liquid isoparaffin, liquid paraffin, liquid isoparaffin, hydrogenated isopolybutene, and the like. Examples of the ester oil include diethylhexyl succinate, diethylhexyl sebacate, dibutyl octyl sebacate, diisocetyl adipate, diisostearyl malate, di-2-heptylundecy1 adipate, propylene glycol dicaprate, neopentyl glycol dicaprate, trimethylolpropane triethylhexanoate, pentaerythritol tetraethylhexanoate, ethyl linoleate, isopropyl isostearate, isopropyl linoleate, butyl stearate, palmitic acid, Octyldodecanol, ethylhexyl palmitate, ethylhexyl stearate, decyl oleate, myristyl myristate, cetyl ethylhexanoate, cetyl octanoate, cetyl palmitate, isocetyl dimethyl octanoate, isocetyl myristate, isocetyl palmitate, isocetyl stearate, isocetyl isostearate, isostearyl palmitate, octyldodecyl neopentanoate, octyldodecyl oleate, octyldodecyl myristate, etc.
[0092] Silicone powder is preferably spherical in terms of feel in use. In this specification, "spherical" means that the shape of the particles can be a true sphere or a deformed sphere. In detail, as long as the length of the longest axis / the length of the shortest axis (aspect ratio) is generally 1 to 4, preferably 1 to 2, more preferably 1 to 1.6, and further preferably 1 to 1.4 on average. The shape of the particles can be confirmed by observing the particles using an optical microscope, an electron microscope, etc.
[0093] The average particle size of silicone powder is not particularly limited. From the perspective of refreshing feeling and smoothness when mixed with cosmetics, the volume average particle size (cumulative D 50 The median particle size may be 0.1 to 100 μm, and preferably 1 to 40 μm.
[0094] The amount of silicone powder blended in the cosmetic is 0.5 to 10% by mass, preferably 0.5 to 8% by mass, more preferably 1.8 to 6% by mass, and further preferably 3.0 to 5% by mass. When it is less than 0.5% by mass, sufficient oil absorption effect cannot be obtained, and when it exceeds 10% by mass, the silicone powder cannot completely stay in the internal water phase, and emulsification will be destroyed.
[0095] Preferred examples of highly oil-absorbing silicone powders include silicone resin-coated silicone rubber powders and silicone rubber particles (cross-linked silicone powders).
[0096] Examples of highly oil-absorbing silicone resin-coated silicone rubber powder include silicone rubber powder comprising 100 parts by mass of silicone rubber spherical fine particles having a volume average particle size of 0.1 to 100 μm and 0.5 to 25 parts by mass of polyorganosilsesquioxane coating the surface of the silicone rubber powder.
[0097] Examples of silicone resin-coated silicone rubber powders include (vinyl dimethicone / methylsiloxane silsesquioxane) cross polymers, (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) cross polymers, polysilicone-22, polysilicone-1 cross polymers, etc., which are defined by cosmetic label names. These are commercially available under the trade names of KSP-100, 101, 102, 105, 300, 411, 441, etc. (all manufactured by Shin-Etsu Chemical Co., Ltd.). In addition, examples of silicone resin-coated silicone rubber powders whose surfaces have been subjected to a hydrophilic treatment include KSP-100W (manufactured by Shin-Etsu Chemical Co., Ltd.). Among them, there are (vinyl dimethicone / methicone silsesquioxane) cross polymers [KSP-100, 101, 102] with high oil absorption of silicone oil, polysilicone-1 cross polymer [KSP-411], diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) cross polymer [KSP-300] with high oil absorption for ultraviolet absorbers, and polysilicone-22 [KSP-441] with high oil absorption for a wide range of oils. Among them, polysilicone-22 [KSP-441] with high makeup retention effect is preferred. These silicone resin-coated silicone rubber powders are preferred in terms of the effect of improving the touch such as preventing stickiness and the effect of correcting the morphology of wrinkles and pores.
[0098] As silicone rubber particles, for example, (dimethicone / vinyl dimethicone) cross polymer and (vinyl dimethicone / lauryl dimethicone) cross polymer are known. They can be used as powders or as swollen products containing silicone oil, water dispersions, etc., and are commercially available. For example, they are commercially available under the trade names of KMP-598, KSG-016F, etc. (all manufactured by Shin-Etsu Chemical Co., Ltd.). These powders can be used alone or in combination. Silicone rubber particles are preferred in terms of the effects of improving the touch such as preventing stickiness and the effects of correcting the morphology of wrinkles / pores, etc.
[0099] [Silicone rubber particles]
[0100] The silicone rubber particles suitable as the component (C) are addition reaction products of (C-1) organohydrogenpolysiloxane and (C-2) alkenyl-containing organopolysiloxane, and are spherical silicone rubber particles characterized in that one or more components selected from the components (C-1) and (C-2) have an alkyl group having 6 to 30 carbon atoms bonded to the silicon atom in an amount of 5 to 70 mol% relative to the total molar number of all substituents bonded to the silicon atom. Each component is described in detail below.
[0101] [(C-1) Organohydrogenpolysiloxane]
[0102] The (C-1) organohydrogenpolysiloxane is preferably an organohydrogenpolysiloxane represented by the following formula (1) and having two or more hydrogen atoms bonded to silicon atoms in one molecule.
[0103] [Chemical formula 3]
[0104]
[0105] Here, R 1 The groups are independently selected from alkyl groups having 1 to 5 carbon atoms, preferably 1 to 4 carbon atoms, and more preferably 1 to 3 carbon atoms, aryl groups having 6 to 20 carbon atoms, preferably 6 to 16 carbon atoms, and more preferably 6 to 12 carbon atoms, and aralkyl groups having 7 to 20 carbon atoms, preferably 7 to 16 carbon atoms, and more preferably 7 to 12 carbon atoms.
[0106] Examples of alkyl groups include methyl, ethyl, propyl, butyl, pentyl and cyclopentyl. Examples of aryl groups include phenyl, tolyl and naphthyl. In addition, examples of aralkyl groups include benzyl, phenethyl and 2-phenylpropyl. Among them, alkyl groups having 1 to 5 carbon atoms are preferred, and methyl groups are more preferred.
[0107] In addition, R 1 ' is an alkyl group having 6 to 30 carbon atoms, preferably 8 to 20, and more preferably 10 to 15 carbon atoms. Examples thereof include alkyl groups such as hexyl, heptyl, octyl, decyl, undecyl, dodecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl, and triacontyl, and cycloalkyl groups such as cyclohexyl and cycloheptyl.
[0108] q1 is an integer of 1 to 60, preferably an integer of 10 to 50. q2 is an integer of 1 to 60, preferably 1 to 50, and more preferably 5 to 30.
[0109] p is an integer of 2-20, and more preferably an integer of 3-10.
[0110] In the above formula (1), the bonding of the siloxane units enclosed by p, q1, and q2 may be block or random.
[0111] The above-mentioned component (C-1) may be used alone or in combination of two or more.
[0112] The dynamic viscosity of the component (C-1) is preferably 100,000 mm 2 / s or less, more preferably 10,000mm 2 / s or less. When the dynamic viscosity is 100,000mm 2 When the dynamic viscosity is less than 0.4 mm / s, silicone rubber particles with a narrow particle size distribution are easily obtained. 2 / s or more, especially 2mm 2 In the present invention, the dynamic viscosity refers to a value at 25° C. measured using a Cannon-Fenske viscometer described in JIS Z8803:2011.
[0113] [(C-2) Alkenyl-containing organopolysiloxane]
[0114] The (C-2) alkenyl group-containing organopolysiloxane is preferably an organopolysiloxane represented by the following formula (2) and having two or more alkenyl groups in one molecule.
[0115] [Chemical formula 4]
[0116]
[0117] Here, R 1 ' and R described in formula (1) of the component (C-1) 1 ' has the same definition, and the preferred range can be exemplified as follows for R of the formula (1): 1 'The scope of the record.
[0118] R 2 Examples include R described in formula (1) of the component (C-1): 1 The preferred range of the substituents is as follows: 1 Scope of the record.
[0119] R 3 It is an alkenyl group having 2 to 6 carbon atoms, preferably 2 or 3. Examples of the alkenyl group include vinyl, allyl, butenyl, pentenyl and hexenyl, preferably vinyl or allyl, more preferably vinyl.
[0120] n1 is an integer of 1 to 40, preferably an integer of 5 to 30. n2 is an integer of 0 to 50, preferably an integer of 0 or 1 to 20.
[0121] m is an integer of 0 to 10, preferably an integer of 0 or 1 to 5. k1 and k2 are each an integer of 0 to 3, preferably both k1 and k2 are 1. However, m+k1+k2 is an integer of 2 or more.
[0122] Furthermore, the bonding of the siloxane units enclosed by m, n1, and n2 may be block or random.
[0123] The above-mentioned component (C-2) may be used alone or in combination of two or more.
[0124] The dynamic viscosity of the component (C-2) is preferably 100,000 mm 2 / s or less, more preferably 10,000mm 2 / s or less. When the dynamic viscosity is 100,000mm 2 When the dynamic viscosity is less than 0.7 mm / s, silicone microparticles with a narrow particle size distribution are easily obtained. The lower limit of the dynamic viscosity is not particularly limited, and the dynamic viscosity is practically acceptable as long as it is, for example, 0.7 mm / s. 2 / s or more, especially 2mm 2 / s or above.
[0125] Furthermore, it is preferred that at least one component selected from the component (C-1) and the component (C-2), i.e., any one or both of the components (C-1) and (C-2) contain 5 to 70 mol%, preferably 8 to 60 mol%, of the total number of all substituents bonded to silicon atoms, which are alkyl groups having 6 to 30 carbon atoms, preferably 8 to 20 carbon atoms, and more preferably 10 to 15 carbon atoms. It is more preferred that only the component (C-1) satisfies the above conditions. In addition, the number of hydrogen atoms bonded to silicon atoms is not included in the number of substituents bonded to silicon atoms.
[0126] When the ratio of the alkyl group is less than the above lower limit, the absorption amount of the oily substance is likely to decrease. When it exceeds the above upper limit, the reactivity of the organohydrogenpolysiloxane of the component (C-1) and the organopolysiloxane having an olefin group of the component (C-2) is likely to decrease, and the rubber hardness of the obtained cured product is likely to decrease.
[0127] When the above conditions are satisfied, in the formula (1) of the component (C-1), q2 is 1:1 relative to all substituents (R 1 and R 1 The total number of moles of R 1 The molar number of ' is an integer of 5 to 70 mol %, preferably 8 to 60 mol %.
[0128] Similarly, in the formula (2) of the component (C-2), n2 is the total number of substituents (R 2 and R 1 The total number of moles of R 1 The molar number of ' is 5 to 70 mol%, preferably 8 to 60 mol%. In addition, it is preferred that R 3 The number of alkenyl groups bonded to the silicon atom indicated is not included in the number of substituents bonded to the silicon atom.
[0129] In addition, from the viewpoint of reactivity, it is preferred that the monovalent aliphatic saturated hydrocarbon group (R 1 ') is a methyl group.
[0130] The amount of the component (C-2) relative to the component (C-1) is such that the number ratio of the alkenyl group in the component (C-2) to one hydrosilyl group in the component (C-1) is 0.5 to 2.
[0131] However, the number of hydrosilyl groups in the component (C-1) and the number of alkenyl groups in the component (C-2) are not both 2. That is, when the component (C-1) has 2 hydrosilyl groups, one or more of the components (C-2) become organosiloxanes having 3 or more alkenyl groups. In addition, when the component (C-2) has 2 alkenyl groups, one or more of the components (C-1) become organohydrogensiloxanes having 3 or more hydrosilyl groups.
[0132] The component (C) of the present invention is preferably an addition reaction cured product of a silicone composition comprising (C-3) a platinum group metal catalyst in addition to the (C-1) organohydrogenpolysiloxane and the (C-2) alkenyl-containing organopolysiloxane. Component (C-3) will be described in detail below.
[0133] [(C-3) Platinum group metal catalyst]
[0134] The platinum group metal catalyst (C-3) is a catalyst for promoting the addition reaction between the hydrosilyl group in the component (C-1) and the alkenyl group in the component (C-2). The component (C-3) may be used alone or in combination of two or more.
[0135] As component (C-3), there can be listed well-known catalysts used in hydrosilylation reactions. For example, there can be listed platinum group metal single substances such as platinum (including platinum black), rhodium, and palladium; platinum chlorides, chloroplatinic acid, and chloroplatinates such as H2PtCl4·kH2O, H2PtCl6·kH2O, NaHPtCl6·kH2O, KHPtCl6·kH2O, Na2PtCl6·kH2O, K2PtCl4·kH2O, PtCl4·kH2O, PtCl2, and Na2HPtCl4·kH2O (however, in the formula, k is an integer of 0 to 6, preferably 0 or 6); alcohol-modified chloroplatinic acid (refer to U.S. Patent No. No. 3,220,972); complexes of platinum chloride, chloroplatinic acid and olefins (refer to U.S. Pat. Nos. 3,159,601, 3,159,662 and 3,775,452), complexes of chloroplatinic acid and vinyl-containing siloxanes, complexes of platinum and vinyl-containing siloxanes; substances in which platinum group metals such as platinum black and palladium are supported on carriers such as alumina, silica and carbon; rhodium-olefin complexes; tris(triphenylphosphine)rhodium chloride (Wilkinson catalyst), etc.
[0136] The blending amount of component (C-3) is an effective amount as a hydrosilylation reaction catalyst, and is an amount such that the amount of the platinum group metal in component (C-3) is generally about 0.1 to 500 ppm, preferably about 0.5 to 200 ppm, and more preferably about 1 to 100 ppm, relative to the total amount of the composition, in terms of mass.
[0137] The silicone rubber constituting the silicone rubber particles is preferably non-sticky, and its rubber hardness is preferably in the range of 10 to 95, more preferably in the range of 20 to 85, as measured by an Asker C-type durometer specified in the Japanese Rubber Society Standards (SRIS) 0101. When the rubber hardness is in the range of 10 to 95, the rubber has a smooth and soft touch.
[0138] Furthermore, the silicone rubber particles may contain silicone oil, organosilane, inorganic powder, organic powder, antioxidant, and the like.
[0139] [Aqueous dispersion of silicone rubber particles]
[0140] The silicone rubber particles (C) are preferably mixed as an aqueous dispersion, preferably a water dispersion, which is pre-dispersed in the aqueous component (D) described later, from the perspective of ease of making cosmetics. The silicone rubber particles (C) may also be hydrophilized and mixed with the aqueous component (D), or mixed with a hydrophilic active agent and mixed with the aqueous component (D). An aqueous dispersion obtained by emulsification polymerization in a mixture containing the aqueous component (D) is preferred in terms of the reduction of the surfactant and the stability of the aqueous phase. In particular, when an aqueous dispersion of silicone rubber particles is used, a cosmetic with high viscosity stability can be obtained.
[0141] Preferably, the aqueous dispersion contains 5 to 80% by mass of the silicone rubber particles, 0.01 to 15% by mass of a surfactant, and 19 to 94% by mass of water, based on the total mass of the aqueous dispersion.
[0142] The amount of silicone rubber particles is 5 to 80% by mass relative to the mass of the entire silicone rubber particle water dispersion, preferably 20 to 70% by mass, and more preferably 40 to 65% by mass. When it is less than the lower limit, the productivity of each silicone rubber particle will decrease. In addition, since the amount of the water dispersion added to the cosmetic increases, the efficiency is low and it is not preferred. In addition, when it is more than the upper limit, the viscosity of the water dispersion will increase and it will be difficult to handle.
[0143] Surfactant
[0144] The surfactant functions as a dispersant for silicone rubber particles in an aqueous dispersion or cosmetics and, as described later, also functions as an emulsifier for liquid silicone in the production of an aqueous dispersion of silicone rubber particles.
[0145] The surfactant is not particularly limited, and may be any of a nonionic surfactant, anionic surfactant, cationic surfactant, and amphoteric surfactant, and may be used alone or in combination of two or more.
[0146] Examples of the nonionic surfactant 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, glycerol fatty acid esters, polyoxyethylene glycerol fatty acid esters, polyglycerol fatty acid esters, propylene glycol fatty acid esters, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid esters, polyoxyethylene alkylamines, and polyoxyethylene fatty acid amides.
[0147] In addition, the partially cross-linked polyether-modified silicone and partially cross-linked polyglycerol-modified silicone corresponding to the component (A) are not used as the surfactant, but the non-cross-linked silicone surfactant corresponding to the component (B) can be used as the surfactant. Examples of non-cross-linked silicone surfactants include polyoxyethylene-modified organopolysiloxanes and polyoxyethylene-polyoxypropylene-modified organopolysiloxanes. In addition, when a non-cross-linked silicone surfactant is used as a constituent component of the aqueous dispersion, the non-cross-linked silicone surfactant contained in the aqueous dispersion is not added to the compounding amount of the above-mentioned component (B).
[0148] Examples of the anionic surfactant include alkyl sulfate ester salts such as sodium lauryl sulfate, polyoxyethylene alkyl ether sulfate ester salts, polyoxyethylene alkylphenyl ether sulfate ester salts, sulfate ester salts of fatty acid alkylolamides, alkylbenzene sulfonates, polyoxyethylene alkylphenyl ether sulfonates, α-olefin sulfonates, α-sulfofatty acid ester salts, alkylnaphthalenesulfonic acids, alkyldiphenyl ether disulfonates, alkanesulfonates, N-acyltaurates, dialkyl sulfosuccinates, monoalkyl sulfosuccinates, polyoxyethylene alkyl ether sulfosuccinates, fatty acid salts, polyoxyethylene alkyl ether carboxylates, N-acylamino acid salts, monoalkyl phosphate ester salts, dialkyl phosphate ester salts, and polyoxyethylene alkyl ether phosphate ester salts.
[0149] Examples of the cationic surfactant include alkyltrimethylammonium salts, dialkyldimethylammonium salts, polyoxyethylenealkyldimethylammonium salts, dimeroxyethylenealkylmethylammonium salts, trimeroxyethylenealkylammonium salts, alkylbenzyldimethylammonium salts, alkylpyridinium salts, monoalkylamine salts, and monoalkylamideamine salts.
[0150] Examples of the amphoteric surfactant include alkyl dimethyl amine oxide, alkyl dimethyl carboxy betaine, alkyl amidopropyl dimethyl carboxy betaine, alkyl hydroxysulfobetaine, and alkyl carboxymethyl hydroxyethyl imidazolinium betaine.
[0151] The amount of surfactant is 0.01 to 15% by mass relative to the total mass of the aqueous dispersion, preferably 0.1 to 10% by mass, and more preferably 0.5 to 5% by mass. When it is less than the above lower limit, the liquid silicone may not be emulsified during the manufacturing stage, and it is difficult to obtain narrowly distributed particles. In addition, the stability of the aqueous dispersion may also be reduced. In addition, even if it is more than the above upper limit, the water dispersibility of the silicone rubber particles will not be improved, and the irritation to the skin may increase, so it is not preferred.
[0152] Water is a dispersion medium for the silicone rubber particles. The amount of water is 19 to 94% by mass, preferably 30 to 80% by mass, based on the total mass of the aqueous dispersion. Water is included in the aqueous component (D) described below.
[0153] ·Method for producing aqueous dispersion of silicone rubber particles
[0154] The aqueous dispersion of silicone rubber particles can be produced by a known method. For example, the following method can be cited: a surfactant and water are added to a mixed solution of (C-1) an organohydrogenpolysiloxane and (C-2) an organopolysiloxane having an olefin group, and after emulsification to prepare an emulsion, (C-3) a platinum group metal catalyst is added to perform an addition reaction. This method is known as emulsion polymerization.
[0155] When emulsifying, a general emulsifying disperser can be used. Examples thereof include high-speed rotating centrifugal radiation type mixers such as homodispersors, high-speed rotating shearing type mixers such as homomixers, high-pressure jet emulsifying dispersers such as homogenizers, colloid mills, ultrasonic emulsifiers, etc.
[0156] (C-3) When the platinum group metal catalyst has poor dispersibility in water, it is preferably added to the emulsion in a state dissolved in a surfactant. The addition reaction can be carried out at room temperature (1 to 30°C), but if the reaction is not completed, it can also be carried out under heating at less than 100°C.
[0157] [(D) ingredient]
[0158] The component (D) is not particularly limited as long as it is an aqueous component that can be mixed with a common cosmetic. Specifically, water, a moisturizer, a water-soluble polymer compound, a skin-beautifying component, a water-soluble inorganic salt, and a pH adjuster can be listed. These can be used alone or in combination of two or more.
[0159] Examples of water include purified water and distilled water from fruits and plants generally used in cosmetics, as well as seawater, hot spring water, and peat water defined by their labels.
[0160] As moisturizers, lower alcohols such as ethanol and isopropanol can be listed; sugar alcohols such as sorbitol, maltose, and xylitol; polyols such as butylene glycol, dibutylene glycol, propylene glycol, dibutylene glycol, pentanediol, decanediol, octanediol, hexylene glycol, erythritol, glycerol, diglycerol, and polyethylene glycol; glucose, glyceryl glucoside, betaine, chondroitin sulfate, pyrrolidone carboxylate, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside, etc. The blending amount of moisturizer is preferably 5 to 70% by mass in the aqueous component, more preferably 8 to 50% by mass, and further preferably 10 to 30% by mass. By blending moisturizers, the stability of cosmetics can be improved and the water-break feeling can be adjusted. Among them, moisturizers with a valence of two or more are particularly preferred, and in detail, butylene glycol, glycerol, sorbitol, etc. can be listed. The amount of the divalent or higher alcohol blended is preferably 30 to 100% by mass, more preferably 50 to 100% by mass, and even more preferably 65 to 100% by mass in the moisturizing agent.
[0161] As water-soluble polymer compounds, natural water-soluble polymer compounds such as carrageenan, hyaluronate, and xanthan gum; semi-synthetic water-soluble polymer compounds such as hydroxyethyl cellulose, hydroxypropyl methyl cellulose, and carboxymethyl cellulose; synthetic water-soluble polymer compounds such as polyvinyl alcohol, polyvinyl pyrrolidone, and carboxyvinyl polymer; inorganic water-soluble polymer compounds such as bentonite and laponite, etc. The blending amount of the water-soluble polymer compound is preferably 0.01 to 1% by mass in the aqueous component. By blending the water-soluble polymer compound, the stability of the cosmetic can be improved and the water release feeling can be adjusted.
[0162] As skin-beautifying ingredients, there can be listed whitening agents such as arbutin, ascorbic acid and its derivatives; anti-inflammatory agents such as allantoin and glycyrrhizic acid salts; blood circulation promoters such as benzyl nicotinate, etc. The amount of the skin-beautifying ingredients can be appropriately adjusted according to conventional cosmetics within a range that does not impair the effects of the present invention.
[0163] In addition, water-soluble inorganic salts such as sodium chloride, magnesium sulfate, sodium hydroxide, potassium hydroxide, arginine, citric acid, sodium citrate, lactic acid, glycolic acid, and pH adjusters can be listed. The amount of other ingredients can be appropriately adjusted according to conventional cosmetics within the range that does not impair the effects of the present invention.
[0164] The total amount of the aqueous component is 30 to 90% by mass of the entire cosmetic of the present invention, preferably 50 to 90% by mass, and more preferably 60 to 85% by mass. In the water-in-oil cosmetic of the present invention, the silicone rubber particles (C) are dispersed in the internal water phase. The amount of the aqueous phase component containing the (C) component is 30 to 90% by mass in the cosmetic, preferably 50 to 90% by mass, and more preferably 60 to 85% by mass.
[0165] By increasing the amount of the aqueous component and mixing the components in the above-mentioned mixing amount, a cosmetic having an emulsion with a large particle size can be obtained. When the cosmetic is applied, the oil-in-water emulsion is destroyed due to its shear force, and the internal water phase is ejected as water droplets. The cosmetic (water-releasing cosmetic) is an oil-in-water cosmetic with a moist touch.
[0166] The amount of the aqueous component, preferably water, contained in the aqueous dispersion of the silicone powder (C) is included in the total amount of the aqueous component (D).
[0167] In a water-releasing cosmetic with a small amount of oil phase, when the (C) silicone rubber powder is mixed into the oil phase, emulsification becomes difficult and the long-term stability of the cosmetic decreases. On the other hand, the present invention is a cosmetic in which the (C) silicone rubber powder is dispersed in the internal water phase, and can provide a stable water-releasing cosmetic.
[0168] [(E) ingredient]
[0169] Component (E) is a volatile oil agent, which can be used alone or in combination of two or more volatile oil agents. By mixing component (E), the anti-transfer property of the cosmetic is improved. By mixing the volatile oil agent (E) and the silicone rubber powder (C), it can be expected that after the application of the cosmetic, component (C) will absorb sebum and excess oil after component (E) evaporates. In the present invention, a volatile oil agent refers to an oil agent having a boiling point of less than 250°C. The mixing amount of the volatile oil agent in the cosmetic is 1 to 95% by mass, preferably 5 to 65% by mass, and more preferably 5 to 30% by mass.
[0170] Specifically, examples include dimethylpolysiloxane having a boiling point of 250° C. or less (manufactured by Shin-Etsu Chemical Co., Ltd.: KF-96L-1cs, KF-96L-1.5cs, KF-96L-2cs, etc.), octamethyltetrasiloxane (D4), decamethylcyclopentasiloxane (manufactured by Shin-Etsu Chemical Co., Ltd.: KF-995 (D5)), dodecamethylhexasiloxane (D6), tris(trimethylsiloxy)methylsilane (manufactured by Shin-Etsu Chemical Co., Ltd.: TMF-1.5), ethylpolymethicone (manufactured by Shin-Etsu Chemical Co., Ltd.: KF-4422), light isoparaffin, undecane, isododecane and other oily volatile components.
[0171] [(F)INGREDIENT]
[0172] The (F) component is a partially cross-linked organopolysiloxane other than the above-mentioned (A) component. From the perspective of the stability of the preparation during storage and the improvement of the feeling of use, it is desirable to mix it. The (F) component can be one alone or two or more components can be appropriately combined. The (F) component is different from the (A) component. It is a compound that does not have a polyether or polyglycerol structure in its molecular structure. It is an elastomer that has structural viscosity by swelling the oil agent. In addition, it is also different from the (C) component which is a powder. As the (F) component, for example, (dimethylsiloxane / vinyl dimethylsiloxane) cross polymer, (dimethylsiloxane / phenyl vinyl dimethylsiloxane) cross polymer, (vinyl dimethylsiloxane / lauryl dimethylsiloxane) cross polymer, (lauryl dimethylsiloxyethyl dimethylsiloxane / bisvinyl dimethylsiloxane) cross polymer, etc. can be listed. These are commercially available as swellable products containing oils that are liquid at room temperature, and specific examples thereof include KSG-15, 1510, 16, 1610, 18A, 19, 41A, 42A, 43, 44, 042Z, 045Z, and 048Z manufactured by Shin-Etsu Chemical Co., Ltd. The amount of the (F) component when mixed is preferably 0.01 to 30% by mass, more preferably 0.1 to 4% by mass in the cosmetic.
[0173] [Cosmetics]
[0174] The present invention is applicable to various cosmetics, and is particularly preferably applied to skin care cosmetics, color makeup cosmetics, antiperspirant cosmetics, UV protection cosmetics and other cosmetics applied to the skin, and hair cosmetics and other cosmetics applied to the hair, nail cosmetics. As skin care cosmetics, for example, lotions, emulsions, creams, facial cleansers, facial masks, oils, massage materials, beauty essences, beauty oils, cleansers, deodorants, hand creams, lip balms, wrinkle creams, etc. can be listed. As color makeup cosmetics, for example, makeup bases, foundations, concealers, powders, blushers, eye colors, eye shadows, mascara, eyeliners, eyebrow pencils, lipsticks, etc. can be listed. As antiperspirant cosmetics, for example, roll-on type, cream type, solution type, stick type and other antiperspirant cosmetics can be listed. As UV protection cosmetics, for example, sunscreen oils, sunscreen lotions, sunscreen creams, etc. can be listed. As hair cosmetics, for example, shampoo, conditioner, conditioner, styling agent, etc. can be listed.
[0175] Among them, the present invention also exhibits high durability by absorbing sebum and the like when applied over a foundation or other makeup cosmetic, and is therefore most suitable for use as a base cosmetic.
[0176] The form of the cosmetic of the present invention is not particularly limited as long as it is a water-in-oil type, and as an emulsified form, it can be any form of a W / O type emulsion or an O / W / O type emulsion. The definition of the water-in-oil type of the present invention also includes an oil-in-polyol type that does not substantially contain water. In addition, as the properties of the cosmetic of the present invention, various properties such as liquid, emulsion, cream, solid, paste, gel, powder, compressed, multilayer, mousse, spray, stick, pencil, etc. can be selected.
[0177] The cosmetic of the present invention may contain various components used in conventional cosmetics within a range that does not impair the effects of the present invention. For example, it may contain (1) an oily agent other than the above-mentioned (E) component, (2) a powder other than the above-mentioned (C) component, (3) a film-forming agent, (4) an ultraviolet light absorbing and scattering agent, and (5) other additives. These components may be used alone or in combination of two or more.
[0178] (1) Oil
[0179] The oil agent may be any of solid, semi-solid, and liquid at room temperature (25° C.), and examples thereof include silicone oil, silicone wax, natural animal and plant oils and fats, semi-synthetic oils, hydrocarbon oils, higher alcohols, fatty acids, ester oils, fluorine-based oils, and ultraviolet absorbers. The amount of the oil agent blended is not particularly limited, but is 1 to 95% by mass, preferably 5 to 65% by mass, and more preferably 5 to 30% by mass in the cosmetic.
[0180] Silicone oil
[0181] Examples of silicone oils include low-viscosity to high-viscosity linear or branched organopolysiloxanes such as dimethicone, alkyl-modified silicone, phenyl trimethicone, diphenyl dimethicone, diphenylsiloxyphenyl trimethicone, tetraphenyl dimethyl disiloxane, and methyl hydrogen polysiloxane, amino-modified organopolysiloxanes such as amino dimethicone and aminopropyl dimethicone, and PCA dimethicone. Silicone rubbers such as pyrrolidone-modified organopolysiloxane, pyrrolidone carboxylic acid-modified organopolysiloxane, high-polymerization-degree gum-like dimethylpolysiloxane, gum-like amino-modified organopolysiloxane, gum-like dimethylsiloxane-methylphenylsiloxane copolymer, and low-viscosity organopolysiloxane solutions of silicone gum or rubber, amino acid-modified silicone, fluorine-modified silicone, silicone resin, and silicone resin dissolves.
[0182] Examples of commercially available silicone oils include KF-96A-6cs, KF-54, KF-54HV, and KF-56A manufactured by Shin-Etsu Chemical Co., Ltd.
[0183] Solid oily ingredients
[0184] In the present invention, when the cosmetic is to be solidified, it is preferred to mix an oily component that is solid at 25° C. The oily component that is solid at 25° C. preferably has a melting point of 40° C. or higher, more preferably 60 to 110° C., and includes 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 mixed in a general cosmetic. Specifically, carnauba wax, sugar cane wax, candelilla wax, purified candelilla wax, rice wax, wood wax, jojoba wax, kapok wax, rice bran wax, bayberry wax, shea butter, cocoa butter, sumac wax, montan wax, isostearic acid hydrogenated castor oil and other vegetable waxes, beeswax, beef tallow, beef bone fat, lard, horse tallow, sheep tallow, lanolin, worm white wax, purple shellac wax, spermaceti and other animal waxes, lanolin esters, lanolin fatty acid esters, beeswax acid esters and other semi-synthetic waxes, hardened oils such as hardened castor oil and hardened coconut oil, paraffin wax, polyethylene, ceresin, ozokerite and other (ozokerite), hydrocarbon waxes such as microcrystalline wax, wax esters such as synthetic beeswax, amino acid stearyl esters such as dioctyldodecyl lauroyl glutamate, dioctyldodecyl lauroyl glutamate, dioctyldodecyl lauroyl glutamate, fatty acids such as stearic acid and behenic acid, and silicone waxes such as acrylic silicone resins of acrylic acid-silicone graft or block copolymers (manufactured by Shin-Etsu Chemical Co., Ltd.: acrylic acid-silicone graft copolymers: KP-561P, 562P, etc.), or their derivatives, preferably one or more selected from them.
[0185] Natural animal and plant oils and semi-synthetic oils
[0186] Examples of the natural plant and animal oils and semi-synthetic oils include avocado oil, linseed oil, almond oil, perilla oil, olive oil, torreya grandis oil, citronella oil, torreya grandis seed oil, almond oil, wheat germ oil, sesame seed oil, wheat germ oil, rice germ oil, rice bran oil, camellia oil, safflower oil, soybean oil, tea seed oil, camellia seed oil, evening primrose oil, rapeseed oil, corn germ oil, wheat germ oil and other germ oils; natural vegetable oils such as peach kernel oil, palm oil, palm kernel oil, castor oil, sunflower seed oil, grape seed oil, jojoba seed oil, macadamia seed oil, meadowfoam seed oil, cottonseed oil, coconut oil, and peanut oil; natural animal oils such as shark liver oil, cod liver oil, cod liver oil, turtle oil, mink oil, and egg yolk oil; and semi-synthetic oils such as hydrogenated coconut oil and liquid lanolin.
[0187] Hydrocarbon oil
[0188] Examples of the hydrocarbon oil include linear or branched hydrocarbon oils, and more specifically, include alkanes such as hydrogenated polyisobutene, squalane, mineral oil, coconut alkane, and (C13-15) alkane.
[0189] ·Higher alcohols
[0190] Examples of higher alcohols include linear saturated alcohols having 6 or more carbon atoms, such as lauryl alcohol, hexyldecanol, oleyl alcohol, isostearyl alcohol, octyldodecanol, decyltetradecyl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, and batyl alcohol. In addition, examples include sterols such as cholesterol, sitosterol, phytosterol, and lanosterol.
[0191] ·Ester oil
[0192] Examples of the ester oil include diisobutyl adipate, dihexyldecyl adipate, diheptylundecyl adipate, isostearyl isostearate and other n-alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, ethylene glycol diethylhexanoate, cetyl ethylhexanoate, trimethylolpropane triethylhexanoate, pentaerythritol tetraethylhexanoate, cetyl octanoate, octyldodecyl stearoyloxystearate and other octyldodecyl esters, oleyl oleate, octyldodecyl oleate, decyl oleate, neopentyl glycol dioctanoate, neopentyl glycol dicaprate, diisostearyl malate, triethyl citrate, Diethylhexyl succinate, amyl acetate, ethyl acetate, butyl acetate, isocetyl stearate, butyl stearate, diisopropyl sebacate, diethylhexyl sebacate, cetyl lactate, myristyl lactate, isononyl isononanoate, isotridecyl isononanoate, isopropyl palmitate, ethylhexyl palmitate, palmitates such as hexyldecyl palmitate, cholesterol, isopropyl myristate, octyldodecyl myristate, myristyl myristate, ethylhexyl laurate, hexyl laurate, dioctyldodecyl lauroyl glutamate, isopropyl lauroyl sarcosinate, (caprylic acid / capric acid) coconut alkyl esters, etc.
[0193] Among the ester oils, examples of the glyceryl ester oil include triethylhexanoin, tri(caprylic acid / capric acid)glyceryl, cocoyl glyceryl, (caprylic acid / capric acid / succinic acid) triglyceride, and (caprylic acid / capric acid) glyceryl.
[0194] Fluorine oil
[0195] Examples of the fluorine-based oil include perfluorodecalin, perfluorononyldimethylsiloxane, and perfluoromethylcyclopentane.
[0196] UV absorber
[0197] Examples of the ultraviolet absorber include oxybenzone-1, oxybenzone-2, oxybenzone-3, oxybenzone-4, oxybenzone-5, oxybenzone-6, oxybenzone-9, homosalate, octocrylene, t-butyl methoxydibenzoylmethane, ethylhexyl salicylate, diethylaminohydroxybenzoyl hexyl benzoate, polysilicone-15, octyl dimethoxybenzylidene dioxoimidazolidine propionate, terephthalylidene dicamphorsulfonic acid, ethylhexyl triazone, Isoamyl trimethoxycinnamate methylbis(trimethylsiloxy)silyl, drometrizole trisiloxane, ethylhexyl dimethyl PABA, isopropyl p-methoxycinnamate, ethylhexyl methoxycinnamate, bis-ethylhexyloxyphenol methoxyphenyl triazine, phenylbenzimidazole sulfonic acid, methylenebisbenzotriazolyl tetramethylbutylphenol, ethylhexanoate dimethoxycinnamate, glyceryl PABA, methyl diisopropylcinnamate, cinoxate, ethylhexyl dimethoxybenzylidene dioxoimidazolidine propionate, etc. In addition, a UVA absorber (for example, diethylaminohydroxybenzoyl hexyl benzoate, etc.) and a UVB absorber (for example, ethylhexyl methoxycinnamate, etc.) can be used together, and each can be combined arbitrarily.
[0198] (2) Powders other than (C) ingredients
[0199] Powders other than the component (C), that is, powders having an oil absorption of less than 30 parts by mass relative to 100 parts by mass of hydrocarbon oil and ester oil, may be mixed. Specifically, powders having low oil absorption may be exemplified, such as the coloring pigments, inorganic powders, metal powders, organic powders, inorganic / organic composite powders, etc. exemplified in the above (C).
[0200] Specific examples of (2) include commercially available products such as KTP-09 series (KTP-09W, 09R, 09Y, 09B), KMP-590, 591, etc. manufactured by Shin-Etsu Chemical Co., Ltd. These are surface-treated coloring pigments and silicone resin particles (polyorganosilsesquioxane resin particles having a three-dimensional network structure).
[0201] (3) Film-forming agent
[0202] The film-forming agent is mainly mixed to further maintain the effect sustainability of the cosmetic. Although not particularly limited, from the viewpoint of imparting water repellency, a silicone composition is preferably used. Specifically, trimethylsiloxysilicic acid, acrylic acid-silicone film-forming agent, silicone-modified norbornene, silicone-modified pullulan, silicone-modified polyvinyl alcohol, etc. can be used.
[0203] Examples of the film-forming agent of the silicone composition include trimethylsiloxysilicic acid, (acrylate / polydimethylsiloxane) copolymer, (norbornene / tris(trimethylsiloxy)silylnorbornene) copolymer, and tris(trimethylsiloxy)silylpropylcarbamate pullulan.
[0204] The film-forming agent may be dissolved in a liquid oil at room temperature and then mixed into the cosmetic. As the liquid oil, silicone oil, hydrocarbon oil, ester oil, natural animal and plant oil, semi-synthetic oil, etc., or fluorine-based oil may be used as component (F) or any component (1) of the oil.
[0205] 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.
[0206] (4) Ultraviolet light absorbing and scattering agent
[0207] Examples of the ultraviolet absorbing and scattering agent include ultraviolet absorbing and scattering particles such as microparticle titanium oxide, microparticle iron-containing titanium oxide, microparticle zinc oxide, microparticle cerium oxide, and composites thereof. A dispersion prepared by predispersing these ultraviolet absorbing and scattering particles in an oil may also be used.
[0208] Specific examples of dispersions in which particles that absorb and scatter ultraviolet rays are pre-dispersed in an oil include SPD series (trade name), especially SPD-T5, T5L, Z5, Z5L, T6, Z6, T7, and Z7L, manufactured by Shin-Etsu Chemical Co., Ltd.
[0209] (5) Other additives
[0210] 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, rough skin improvers, blood circulation promoters, skin astringents, anti-seborrheic agents, etc.), vitamins, amino acids, nucleic acids, hormones, inclusion compounds, etc.
[0211] Oil-soluble gelling agent
[0212] Examples of the oil-soluble gelling agent include metal soaps such as aluminum stearate, magnesium stearate, and zinc myristate; amino acid derivatives such as lauroyl glutamic acid and α,γ-di-n-butylamine; dextrin fatty acid esters such as dextrin palmitate, dextrin isostearate, dextrin myristate, stearoyl inulin, and dextrin (palmitic acid / ethylhexanoic acid) ester; sucrose fatty acid esters such as sucrose palmitate and sucrose stearate; oligofructose fatty acid esters such as oligofructose stearate and oligofructose 2-ethylhexanoate; benzylidene sorbitol derivatives such as monobenzylidene sorbitol and dibenzylidene sorbitol; distearyl dimethyl ammonium hectorite, stearalkonium hectorite, and organically modified clay minerals of hectorite; stearalkonium bentonite, and the like.
[0213] Preservatives / fungicides
[0214] Examples of the preservative / bactericide include alkyl parabens, benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, phenoxyethanol, imidazolidinyl urea, salicylic acid, isopropyl methylphenol, carbolic acid, parachloro-meta-cresol, hexachlorophene, benzalkonium chloride, chlorhexidine hydrochloride, trichlorocarbanilide, iodopropynyl butylcarbamate, polylysine, photosensitizer, silver, and plant extracts.
[0215] Antiperspirant
[0216] Examples of antiperspirants include aluminum hydroxyhalides such as chlorohydroxyaluminum, aluminum halides such as aluminum chloride, aluminum allantoin, tannic acid, persimmon tannin, sulfuric acid (aluminum / potassium), zinc oxide, zinc p-phenolsulfonate, burnt alum, tetrachloro(aluminum / zirconium)hydrate, trichlorohydrated glycine (aluminum / zirconium), etc. In particular, preferred components that exhibit a high effect are aluminum hydroxyhalides, aluminum halides, and complexes or mixtures thereof with zirconium oxyhalides and zirconium hydroxyhalides (e.g., tetrachloro(aluminum / zirconium)hydrate, trichlorohydrated glycine (aluminum / zirconium)).
[0217] ·spices
[0218] As fragrances, there are natural fragrances and synthetic fragrances. As natural fragrances, there are plant fragrances separated from flowers, leaves, wood, fruit peels, etc.; animal fragrances such as musk and civet. As synthetic fragrances, there are hydrocarbons such as monoterpenes, alcohols such as aliphatic alcohols and aromatic alcohols; aldehydes such as terpene aldehydes and aromatic aldehydes; ketones such as alicyclic ketones; esters such as terpene esters; lactones; phenols; oxides; nitrogen-containing compounds; acetals, etc.
[0219] Salts
[0220] As salts, inorganic salts, organic acid salts, amine salts and amino acid salts can be listed. As inorganic salts, for example, sodium salts, potassium salts, magnesium salts, calcium salts, aluminum salts, zirconium salts, zinc salts, etc. of inorganic acids such as hydrochloric acid, sulfuric acid, carbonic acid, and nitric acid can be listed; as organic acid salts, for example, salts of organic acids such as acetic acid, dehydroacetic acid, citric acid, malic acid, succinic acid, ascorbic acid, and stearic acid can be listed; as amine salts and amino acid salts, for example, salts of amines such as triethanolamine, and salts of amino acids such as glutamic acid can be listed. In addition, salts of hyaluronic acid, chondroitin sulfate, aluminum zirconium glycine complexes, etc., and acid-base neutralization salts used in cosmetic formulations can also be used.
[0221] Antioxidants
[0222] As antioxidants, there are no particular limitations, and examples thereof include carotenoids, ascorbic acid and salts thereof, ascorbyl stearate, tocopherol, tocopherol acetate, tocopherol, p-tert-butylphenol, butylated hydroxyanisole, butylated hydroxytoluene, phytic acid, ferulic acid, thiotaurine, hypotaurine, sulfites, isoascorbic acid and salts thereof, chlorogenic acid, epicatechin, epigallocatechin, epigallocatechin gallate, apigenin, kaempferol, myricetin, quercetin, etc. The antioxidants may be used alone or in combination of two or more.
[0223] pH adjuster
[0224] Examples of the pH adjuster include lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, dl-malic acid, potassium carbonate, sodium bicarbonate, and ammonium bicarbonate.
[0225] Chelating agents
[0226] Examples of the chelating agent include alanine, edetic acid sodium salt, sodium polyphosphate, sodium metaphosphate, phosphoric acid, and the like.
[0227] · Cooling agent
[0228] Examples of the cooling agent include L-menthol, camphor, and menthyl lactate.
[0229] Anti-inflammatory agents
[0230] Examples of the anti-inflammatory agent include allantoin, glycyrrhizic acid and its salts, glycyrrhetinic acid and glycyrrhetinic acid stearyl, tranexamic acid, and azulene.
[0231] Skin-beautifying ingredients
[0232] As skin beautifying ingredients, there can be listed whitening agents such as placenta extract, arbutin, glutathione, and saxifrage extract; cell activators such as royal jelly, photosensitizer, cholesterol derivatives, and calf blood extract; skin roughness improving agents, nonanoic acid vanillamide, benzyl nicotinate, β-butoxyethyl nicotinate, capsaicin, gingerol, chelidonium tincture, ichthyol, caffeine, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cycloamycin, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthin, γ-oryzanol and other blood circulation promoters; skin astringents such as zinc oxide and tannic acid; anti-seborrheic agents such as sulfur and thianthol; and the like.
[0233] Vitamins
[0234] Examples of the 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 and other vitamin B compounds, L-ascorbic acid, L-ascorbic acid dipalmitate, L-ascorbic acid-2-sulfate and other vitamins. Vitamin C such as sodium, dipotassium L-ascorbyl phosphate, vitamin D such as ergocalciferol, cholecalciferol, vitamin E such as α-tocopherol, β-tocopherol, γ-tocopherol, dl-α-tocopherol acetate, dl-α-tocopherol nicotinate, dl-α-tocopherol succinate; niacin such as niacin, benzyl nicotinate, niacinamide, vitamin H, vitamin P, calcium pantothenate, D-panthenol, panthenyl ethyl ether, acetyl panthenyl ethyl ether, pantothenic acid such as biotin, etc.
[0235] Amino Acids
[0236] Examples of the amino acids include glycine, valine, leucine, isoleucine, serine, threonine, phenylalanine, arginine, lysine, aspartic acid, glutamic acid, cystine, cysteine, methionine, and tryptophan.
[0237] Nucleic Acids
[0238] Examples of nucleic acids include deoxyribonucleic acid and the like.
[0239] ·hormone
[0240] Examples of the hormone include estradiol and vinyl estradiol.
[0241] Inclusion compounds
[0242] Examples of the inclusion compound include cyclodextrin and the like.
[0243] Example
[0244] Hereinafter, the present invention will be described in more detail with reference to synthesis examples, examples and comparative examples, but the present invention is not limited to the following examples.
[0245] In the examples, the dynamic viscosity is a value measured at 25° C. using a Canon-Fenske viscometer described in JIS Z8803:2011, and “%” indicating a concentration and a content rate indicates “% by mass.” In addition, the long-chain alkyl amount % refers to the ratio of the number of moles of the long-chain alkyl amount bonded to the silicon atom to the total number of moles of all substituents bonded to the silicon atom (excluding hydrogen atoms bonded to the silicon atom).
[0246] Synthesis example 1
[0247] 400 g of a compound represented by the following formula (1) having a long-chain alkyl content of 22.2 mol % and a dynamic viscosity of 110 mm 2 / s of organohydrogenpolysiloxane,
[0248] [Chemical formula 5]
[0249]
[0250] 114 g of a compound represented by the following formula (2) containing no long-chain alkyl groups and having a dynamic viscosity of 10 mm 2 / s of methylvinylpolysiloxane (the amount blended so that the number ratio of the vinyl groups in the methylvinylpolysiloxane to the number of hydrosilyl groups in the organohydrogenpolysiloxane is 0.96),
[0251] [Chemical formula 6]
[0252]
[0253] And 0.1g of dl-α-tocopherol was loaded into a glass beaker with a capacity of 1 liter, and stirred and mixed using a homogenizer at 2,000rpm. 1.0g of polyoxyethylene lauryl ether (ethylene oxide addition mole number = 9 moles) and 190g of water were added to the resulting mixed solution, and after stirring at 6,000rpm using a homogenizer, an O / W type emulsion was formed, and an increase in viscosity was observed. Stirring was further continued for 15 minutes. Then, 274g of water was added while stirring at 2,000rpm to obtain a uniform white emulsion.
[0254] The emulsion was transferred to a 1-liter glass flask equipped with a stirring device having an anchor-type stirring blade, and after adjusting the temperature to 15 to 20° C., 18 g of polyoxyethylene lauryl ether (ethylene oxide addition mole number = 9 moles) was added and stirred for 30 minutes to dissolve in the emulsion. Next, a mixed solution of 2.4 g of an isododecane solution of a platinum-vinyl disiloxane complex (platinum content 0.5%) and 1.0 g of polyoxyethylene lauryl ether (ethylene oxide addition mole number = 9 moles) was added under stirring, and stirred at the same temperature for 12 hours to obtain an aqueous dispersion of silicone rubber particles.
[0255] The shape of the silicone rubber particles was observed with an optical microscope and found to be spherical. The volume average particle diameter was measured using a particle size distribution analyzer "Multisizer 3" (trade name, manufactured by Beckman Coulter Co., Ltd.) and found to be 12 μm.
[0256] Synthesis example 2
[0257] 400 g of a polyol represented by the following formula (3) having 10.5 mol% of a long-chain alkyl group and a dynamic viscosity of 130 mm 2 / s of organohydrogenpolysiloxane,
[0258] [Chemical formula 7]
[0259]
[0260] 113 g of the compound represented by the above formula (2) containing no long-chain alkyl group and having a dynamic viscosity of 10 mm 2 / s of methylvinylpolysiloxane (the mixing amount is such that the ratio of the number of vinyl groups in methylvinylpolysiloxane to one hydrosilyl group in organohydrogenpolysiloxane is 0.91) and 0.1g of dl-α-tocopherol are placed in a glass beaker with a capacity of 1 liter, and stirred and mixed at 2,000rpm using a homogenizer. 1.0g of polyoxyethylene lauryl ether (number of moles of ethylene oxide added = 9 moles) and 190g of water are added to the resulting mixed solution, and after stirring at 6,000rpm using a homogenizer, an O / W type emulsion is formed, and an increase in viscosity is observed. Stirring is further continued for 15 minutes. Next, 275g of water is added while stirring at 2,000rpm to obtain a uniform white emulsion.
[0261] The emulsion was transferred to a 1-liter glass flask equipped with a stirring device having an anchor-type stirring blade, and after adjusting the temperature to 15 to 20° C., 18 g of polyoxyethylene lauryl ether (ethylene oxide addition mole number = 9 moles) was added and stirred for 30 minutes to dissolve in the emulsion. Then, a mixed solution of 2.4 g of a platinum-vinyl disiloxane complex in isododecane (platinum content 0.5%) and 1.0 g of polyoxyethylene lauryl ether (ethylene oxide addition mole number = 9 moles) was added under stirring, and stirred at the same temperature for 12 hours to obtain an aqueous dispersion of silicone rubber particles.
[0262] The shape of the silicone rubber particles was observed with an optical microscope and found to be spherical. The volume average particle diameter was measured using a particle size distribution analyzer "Multisizer 3" (trade name, manufactured by Beckman Coulter Co., Ltd.) and found to be 12 μm.
[0263] Synthesis example 3
[0264] 467 g of a polyol represented by the above formula (1) having 22.2 mol% of a long-chain alkyl group and a dynamic viscosity of 110 mm 2 / s organohydrogenpolysiloxane, 133 g of the compound represented by the above formula (2) containing no long-chain alkyl group and having a dynamic viscosity of 10 mm 2 / s of methylvinylpolysiloxane (a mixing amount that makes the ratio of the number of vinyl groups in methylvinylpolysiloxane to the number of hydrosilyl groups in organohydrogenpolysiloxane be 0.96) and 0.1g of dl-α-tocopherol are placed in a glass beaker with a capacity of 1 liter, and stirred and mixed at 2,000rpm using a homogenizer. 0.5g of polyoxyethylene stearyl ether (ethylene oxide addition mole number = 6 moles), 1.6g of polyoxyethylene stearyl ether (ethylene oxide addition mole number = 20 moles), 10g of phenoxyethanol and 200g of water are added to the obtained mixed solution, and after stirring at 6,000rpm using a homogenizer, it becomes an O / W type emulsion, and an increase in viscosity is observed. Stirring is further continued for 15 minutes. Then, 164g of water is added while stirring at 2,000rpm to obtain a uniform white emulsion.
[0265] The emulsion was transferred to a 1-liter glass flask equipped with a stirring device having an anchor-type stirring blade, and after adjusting the temperature to 15 to 20° C., 5 g of polyoxyethylene stearyl ether (ethylene oxide addition mole number = 6 moles) and 14 g of polyoxyethylene stearyl ether (ethylene oxide addition mole number = 20 moles) were added, and stirred for 30 minutes to dissolve in the emulsion. Then, a mixed solution of 2.5 g of a platinum-vinyl disiloxane complex in isododecane (platinum content 0.5%), 1.1 g of polyoxyethylene sorbitan tristearate (ethylene oxide addition mole number = 20 moles), and 1.1 g of polyoxyethylene sorbitan monostearate (ethylene oxide addition mole number = 20 moles) was added under stirring, and stirred at the same temperature for 12 hours to obtain an aqueous dispersion of silicone rubber particles.
[0266] The shape of the silicone rubber particles was observed with an optical microscope and found to be spherical. The average volume particle diameter was measured using a particle size distribution analyzer "Multisizer 3" (trade name, manufactured by Beckman Coulter Co., Ltd.) and found to be 5 μm.
[0267] Synthesis example 4
[0268] 400 g of the compound represented by the above formula (1) having a long-chain alkyl content of 22.2 mol % and a dynamic viscosity of 110 mm 2 / s organohydrogenpolysiloxane, 114 g of the compound represented by the above formula (2) containing no long-chain alkyl group and having a dynamic viscosity of 10 mm 2 / s of methylvinylpolysiloxane (the mixing amount is such that the ratio of the number of vinyl groups in methylvinylpolysiloxane to one hydrosilyl group in organohydrogenpolysiloxane is 0.96) and 0.1g of dl-α-tocopherol are placed in a glass beaker with a capacity of 1 liter, and stirred and mixed at 2,000rpm using a homogenizer. 1.0g of polyoxyethylene lauryl ether (number of moles of ethylene oxide added = 9 moles) and 100g of water are added to the resulting mixed solution, and after stirring at 6,000rpm using a homogenizer, an O / W type emulsion is formed, and an increase in viscosity is observed. Stirring is further continued for 15 minutes. Next, 382g of water is added while stirring at 2,000rpm to obtain a uniform white emulsion.
[0269] The emulsion was transferred to a 1-liter glass flask equipped with a stirring device having an anchor-type stirring blade, and the temperature was adjusted to 15 to 20° C. Then, 1.6 g of a platinum-vinyl disiloxane complex isododecane solution (platinum content 0.5%), 0.6 g of polyoxyethylene lauryl ether (ethylene oxide addition mole number = 9 moles), and 0.4 g of a mixed solution of polyoxyethylene lauryl ether (ethylene oxide addition mole number = 4 moles) were added under stirring, and stirred at the same temperature for 12 hours to obtain an aqueous dispersion of silicone rubber particles. The shape of the silicone rubber particles was observed with an optical microscope, and the result was that they were spherical. The volume average particle diameter was measured using a particle size distribution measuring device "Multisizer 3" (trade name, manufactured by Beckman Coulter Co., Ltd.), and the result was 12 μm.
[0270] 876 g of the obtained aqueous dispersion of silicone rubber particles was transferred to a 3-liter glass flask equipped with a stirring device having an anchor-type stirring blade, and 1988 g of water and 57 g of 28% ammonia water were added. The pH of the liquid at this time was 11.2. After adjusting the temperature to 5-10°C, a mixed solution of 76.8 g of methyltrimethoxysilane and 2.1 g of γ-aminopropyltrimethoxysilane (the amount of polyorganosilsesquioxane after hydrolysis / condensation reaction to 100 parts by mass of silicone rubber particles) was added dropwise over 30 minutes, and further stirred for 1 hour. During this period, the liquid temperature was maintained at 5-10°C. Next, it was heated to 55-60°C, and stirred for 1 hour while maintaining this temperature to complete the hydrolysis / condensation reaction of the methoxysilane.
[0271] The obtained methoxysilane hydrolysis / condensation reaction liquid was filtered and dehydrated using a pressure filter. The dehydrated product was transferred to a stainless steel tray, dried at 105°C in a hot air circulation dryer, and crushed with a jet mill to obtain fluid particles. The particles were observed under an electron microscope, and the results confirmed that they were spherical particles with a particle shape of about 100nm on the surface of the particles, and they became silicone particles in which silicone rubber particles were coated with polyorganosilsesquioxane. The obtained silicone resin-coated silicone rubber powder was dispersed in water using a surfactant, and the volume average particle size was measured using "Multisizer 3", and the result was 13μm.
[0272] Comparative Synthesis Example 1
[0273] 19 g of a compound represented by the following formula (4) containing no long-chain alkyl groups and having a dynamic viscosity of 30 mm 2 / s methyl hydrogen polysiloxane,
[0274] [Chemical formula 8]
[0275]
[0276] 500 g of the compound represented by the following formula (5) containing no long-chain alkyl groups and having a dynamic viscosity of 580 mm 2 / s of methylvinylpolysiloxane (the amount blended so that the number ratio of the vinyl groups in the methylvinylpolysiloxane to the number of hydrosilyl groups in the organohydrogenpolysiloxane is 0.95),
[0277] [Chemical formula 9]
[0278]
[0279] And 0.1g of dl-α-tocopherol was loaded into a glass beaker with a capacity of 1 liter, and stirred and mixed using a homogenizer at 2,000rpm. 1.2g of polyoxyethylene lauryl ether (ethylene oxide addition mole number = 9 moles) and 100g of water were added to the resulting mixed solution, and after stirring at 6,000rpm using a homogenizer, an O / W type emulsion was formed, and an increase in viscosity was observed. Further, stirring was continued for 15 minutes. Then, 377g of water was added while stirring at 2,000rpm to obtain a uniform white emulsion. The emulsion was transferred to a 1-liter glass flask equipped with a stirring device having an anchor-type stirring blade, and the temperature was adjusted to 15-20°C. Then, 0.8 g of a platinum-vinyl disiloxane complex isododecane solution (platinum content 0.5%) and 1.8 g of a mixed solution of polyoxyethylene lauryl ether (ethylene oxide addition mole number = 9 mol) were added under stirring, and the mixture was stirred at the same temperature for 12 hours to obtain an aqueous dispersion of silicone rubber particles.
[0280] The shape of the silicone rubber particles was observed with an optical microscope and was found to be spherical. The volume average particle size was measured using "Multisizer 3" and was found to be 12 μm.
[0281] [Determination of hardness of silicone rubber particles]
[0282] The above-mentioned organohydrogen polysiloxane, methylvinyl polysiloxane, and isododecane solution of platinum-containing vinyl disiloxane complex (platinum content 0.5%) used in the above-mentioned synthesis examples 1 to 4 and comparative synthesis examples were mixed in the mixing ratios described in the above-mentioned synthesis examples 1 to 4 and comparative synthesis examples, and poured into an aluminum petri dish in a manner to make the thickness 10 mm. After being placed at 25°C for 24 hours, it was heated in a constant temperature bath at 50°C for 1 hour to obtain a non-sticky silicone rubber. The hardness of the silicone rubber was measured with an Aska C-type hardness meter specified in SRIS0101. The results are shown in Table 1.
[0283] [Determination of oil absorption of silicone rubber particles]
[0284] The above-mentioned organohydrogen polysiloxane, methylvinyl polysiloxane, and isododecane solution of platinum-containing vinyl disiloxane complex (platinum content 0.5%) used in the above-mentioned synthesis examples 1 to 4 and comparative synthesis examples were mixed in the mixing ratios described in the above-mentioned synthesis examples 1 to 4 and comparative synthesis examples, and poured into a PTFE resin tray (80mm×130mm) in a manner such that the thickness becomes about 1mm. After being placed at 25°C for 24 hours, it was heated in a constant temperature bath at 50°C for 1 hour to obtain a silicone rubber sheet. The obtained sheet was cut into a size of about 30mm square to obtain a test piece. After measuring the mass of the test piece, the test piece was immersed in the oily substance shown in Table 1 at 25°C for 24 hours. The test piece that absorbed the oily substance and swelled was taken out, and the oily substance on the surface was wiped off with a paper towel, and then the mass of the test piece was measured. The amount of oily substance absorbed by the silicone rubber sheet (oil absorption) is shown in Table 1 as a value per 100 g of silicone rubber.
[0285] [Table 1]
[0286]
[0287] Examples 1 to 13, Comparative Examples 1 to 6
[0288] The components were mixed according to the compositions shown in Tables 2, 3 and 4 below to prepare water-in-oil type water-releasing cosmetics.
[0289] [Table 2]
[0290]
[0291] [Table 3]
[0292]
[0293] [Table 4]
[0294]
[0295] (Note 1) A mixture of 75-85% cyclopentasiloxane and 15-25% (dimethicone / (PEG-10 / 15)) cross polymer (manufactured by Shin-Etsu Chemical Co., Ltd.)
[0296] (Note 2) A mixture of 70-80% polydimethylsiloxane (6cs) and 20-30% (polydimethylsiloxane / (PEG-10 / 15)) cross polymer (manufactured by Shin-Etsu Chemical Co., Ltd.)
[0297] (Note 3) A mixture of 90-96% cyclopentasiloxane and 4-10% (dimethicone / vinyl dimethicone) cross polymer (manufactured by Shin-Etsu Chemical Co., Ltd.)
[0298] (Note 4) A mixture of 80-90% polydimethylsiloxane (6cs) and 10-20% (polydimethylsiloxane / vinyl polydimethylsiloxane) cross polymer (manufactured by Shin-Etsu Chemical Co., Ltd.)
[0299] (Note 5) PEG-10 dimethicone (manufactured by Shin-Etsu Chemical Co., Ltd.)
[0300] (Note 6) The percentage in parentheses is the concentration of silicone rubber particles in the water dispersion.
[0301] (Note 7) Polymethylsilsesquioxane (manufactured by Shin-Etsu Chemical Co., Ltd.)
[0302] (Note 8) PEG-11 Methyl Ether Dimethicone (manufactured by Shin-Etsu Chemical Co., Ltd.)
[0303] (Note 9) The amount of the aqueous component is the amount after removing the amount of silicone particles from the amount of the aqueous phase.
[0304] (Manufacturing method)
[0305] The oil phase components are mixed to make them uniform. The water phase components that have been uniformly mixed in advance are added thereto smoothly and stirred to form an emulsion. The emulsion is filled into a predetermined container to obtain a water-in-oil type water-releasing cosmetic.
[0306] [Viscosity stability evaluation]
[0307] The stability of the obtained water-in-oil type water-releasing cosmetic was evaluated according to the following evaluation criteria. The results are collectively recorded in Tables 2, 3, and 4 above.
[0308] The cosmetics were filled into 30 ml vials, and the viscosity of the cosmetics stored in a thermostatic chamber at 50°C for 7 days was measured at 25°C using a B-type viscometer (TVB-10, manufactured by Toki Sangyo) and the viscosity measured at 25°C just after production was compared. "◎" indicates a change in viscosity of 0% or more and less than 25% compared to just after production, "○" indicates a change in viscosity of 25% or more and less than 40% compared to just after production, "△" indicates a change in viscosity of 40% or more and less than 50% compared to just after production, and "×" indicates separation or a change in viscosity of 50% or more. In addition, no characteristic evaluation was performed for the prescriptions with stability of ×.
[0309] [Usability Evaluation]
[0310] The obtained water-in-oil type water-releasing cosmetic was evaluated by 10 professional judges on the following criteria: aesthetics (gloss of the cosmetic's appearance), spreadability during application, makeup appearance (skin condition after application), stickiness of makeup, and durability (makeup retention of the makeup cosmetic applied in layers). The evaluation results were averaged. In addition, the durability was observed after applying the obtained water-in-oil type water-releasing cosmetic evenly and then applying the foundation, and the condition was observed 3 hours later.
[0311] [Table 5]
[0312]
[0313] Based on the average score of the obtained evaluation results, the results are collectively recorded in Table 2, Table 3, and Table 4 according to the following.
[0314] ◎: Average score is 4.5 or above
[0315] ○: The average score is 3.5 or more and less than 4.5
[0316] △: The average score is 2.5 points or more and less than 3.5 points
[0317] ×: The average score is 1.5 or more and less than 2.5
[0318] ××: Average score is less than 1.5 points
[0319] Those with a score of “△” or above were considered as passing.
[0320] As shown in Tables 2, 3, and 4 above, the cosmetics of the present invention are significantly superior to Comparative Examples 1 to 6 in terms of aesthetics, ease of application, appearance of makeup, stickiness of makeup, and durability. Although most water-releasing cosmetics have a matte appearance, the cosmetics of the present invention are glossy and have excellent aesthetics. At the same time, they are cosmetics with excellent feel and stability. On the other hand, Comparative Example 1, which does not mix component (A), cannot be emulsified, and Comparative Example 2, which does not mix component (B), can be emulsified, but has poor stability. Comparative Example 3, which does not mix powders, and Comparative Examples 4 and 5, which mix powders with low oil absorption performance, are cosmetics with poor durability. In addition, Comparative Example 6, in which component (C) is dispersed in the oil phase instead of the water phase, has no gloss in appearance and poor aesthetics.
[0321] Examples of cosmetics are shown below. Evaluation was performed based on the same criteria as above.
[0322] [Example 14]
[0323] W / O Eye Cream
[0324] <Preparation of cosmetics>
[0325] A: Mix ingredients 1 to 7 uniformly.
[0326] B: Mix components 8 to 14 uniformly.
[0327] C: B was added to A and emulsified to obtain an eye cream.
[0328]
[0329] (Note 1) Made by Shin-Etsu Chemical Co., Ltd.: A mixture of 25% of (Lauryl Dimethicone / Polyglycerin-3 Crosspolymer (label name (INCI: Lauryl Dimethicone / Polyglycerin-3 Crosspolymer)) and 75% of isododecane (label name (INCI: Isododecane))
[0330] (Note 2) Made by Shin-Etsu Chemical Co., Ltd.: A mixture of 20% vinyl dimethicone / lauryl dimethicone crosspolymer (label name (INCI: Vinyl Dimethicone / Lauryl Dimethicone Crosspolymer) and 80% isododecane (label name (INCI: Isododecane))
[0331] (Note 3) Made by Shin-Etsu Chemical Co., Ltd.: Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone (Indication name (INCI: Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone))
[0332] (Note 4) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Dimethicone Copolymer) (label name (INCI: Acrylates / Dimethicone Copolymer)
[0333] The obtained W / O eye cream was excellent in terms of aesthetics, spreadability during application, appearance of makeup, stickiness of makeup, and long-lastingness.
[0334] [Example 15]
[0335] Hand Cream
[0336] <Preparation of cosmetics>
[0337] A: Mix components 1 to 6 uniformly.
[0338] B: Mix components 7 to 13 uniformly.
[0339] C: B was added to A and emulsified to obtain a hand cream.
[0340]
[0341]
[0342] (Note 1) Shin-Etsu Chemical Co., Ltd.: Mineral oil + (PEG-15 / lauryl dimethicone) cross polymer 25-35% mixture
[0343] (Note 2) Shin-Etsu Chemical Co., Ltd.: Cetyl PEG / PPG-10 / 1 Dimethicone
[0344] (Note 3) Shin-Etsu Chemical Co., Ltd.: A mixture of squalane and (vinyl dimethicone / lauryl dimethicone) cross polymer 25-35%
[0345] (Note 4) Shin-Etsu Chemical Co., Ltd.: (Acrylate / polydimethylsiloxane) copolymer 40% dissolved in isododecane
[0346] The obtained hand cream is excellent in terms of water release, aesthetics, easy spreadability during application, appearance of makeup, stickiness of makeup, and durability.
[0347] [Example 16]
[0348] Stick foundation
[0349] <Preparation of cosmetics>
[0350] A: Components 9 to 11 were dispersed using three rollers.
[0351] B: Components 1 to 8 are heated to 95°C and mixed uniformly.
[0352] C: Components 12 to 16 and A are uniformly mixed and heated to 85°C.
[0353] D: C was added to B and emulsified, and the mixture was filled into a stick container and then slowly cooled to obtain a stick foundation.
[0354]
[0355]
[0356] (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of 25 to 35% of octyl polymethicone and (dimethicone / polyglyceryl-3) cross polymer
[0357] (Note 2) Made by Shin-Etsu Chemical Co., Ltd.: Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone
[0358] (Note 3) Chiba Flour Milling Co., Ltd.: Rheopearl ISK2
[0359] (Note 4) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone
[0360] (Note 5) Shin-Etsu Chemical Co., Ltd.: Polymethylsilsesquioxane
[0361] (Note 6) Made by Shin-Etsu Chemical Co., Ltd.: Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
[0362] (Note 7) Shin-Etsu Chemical Co., Ltd.: KF-9909 treated coloring inorganic pigment, W: white, R: red, Y: yellow, B: black
[0363] The obtained stick foundation was excellent in water release, aesthetics, spreadability during application, appearance of makeup, stickiness of makeup, and long-lastingness.
[0364] [Example 17]
[0365] BB Cream
[0366] <Preparation of cosmetics>
[0367] A: Components 9 to 14 were dispersed using three rollers.
[0368] B: Components 1 to 8 and A are uniformly mixed.
[0369] C: Components 15 to 21 are uniformly mixed.
[0370] D: C was added to B and emulsified to obtain BB cream.
[0371]
[0372]
[0373] (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of 15 to 25% of triethylhexanoin and (PEG-15 / lauryl dimethicone) cross polymer
[0374] (Note 2) Made by Shin-Etsu Chemical Co., Ltd.: Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone
[0375] (Note 3) Shin-Etsu Chemical Co., Ltd.: A mixture of 10 to 20% of diphenylsiloxyphenyl trimethicone and (dimethicone / phenyl vinyl dimethicone) cross polymer
[0376] (Note 4) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone
[0377] (Note 5) Shin-Etsu Chemical Co., Ltd.: Trimethylsiloxysilicate 50% dissolved in cyclopentasiloxane
[0378] (Note 6) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Ethylhexyl Acrylate / Methacrylate Polydimethylsiloxane) Copolymer
[0379] (Note 7) Shin-Etsu Chemical Co., Ltd.: KF-9909 treated coloring inorganic pigment, W: white, R: red, Y: yellow, B: black
[0380] The obtained BB cream is excellent in terms of water release, aesthetics, easy spreadability during application, appearance of makeup, stickiness of makeup, and durability.
[0381] [Example 18]
[0382] Base Cream
[0383] <Preparation of cosmetics>
[0384] A: Components 8 to 11 were dispersed using three rollers.
[0385] B: Components 1 to 7 and A are uniformly mixed.
[0386] C: Components 12 to 18 are uniformly mixed.
[0387] D: C was added to B and emulsified to obtain a base cream.
[0388]
[0389]
[0390] (Note 1) Made by Shin-Etsu Chemical Co., Ltd.: A mixture of 20 to 30% of dimethicone and (dimethicone / (PEG-10 / 15)) cross polymer
[0391] (Note 2) Shin-Etsu Chemical Co., Ltd.: PEG-9 Polydimethylsiloxyethyl Dimethicone
[0392] (Note 3) Shin-Etsu Chemical Co., Ltd.: A mixture of 10 to 20% of dimethicone and (dimethicone / vinyl dimethicone) cross polymer (Note 4) Shin-Etsu Chemical Co., Ltd.: Methyl trimethicone
[0393] (Note 5) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Dimethicone) Copolymer 40% Dissolved in Methyl Trimethicone
[0394] (Note 6) Shin-Etsu Chemical Co., Ltd.: Polysilicone-22
[0395] (Note 7) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
[0396] The obtained base cream is excellent in terms of water release, aesthetics, easy spreadability during application, appearance of makeup, stickiness of makeup, and durability.
[0397] [Example 19]
[0398] W / O concealer
[0399] <Preparation of cosmetics>
[0400] A: Disperse ingredients 8 to 13 using a three-roll mill.
[0401] B: Components 1 to 7 are uniformly mixed.
[0402] C: Components 15 to 22 are uniformly mixed.
[0403] D: C was added to B and emulsified, and A and ingredient 14 were further added and mixed to obtain a W / O type concealer.
[0404]
[0405]
[0406] (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of 15-25% diphenylsiloxyphenyl trimethicone + (dimethicone / (PEG-10 / 15)) cross polymer
[0407] (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of 10-20% of diphenylsiloxyphenyl trimethicone and (dimethicone / phenyl vinyl dimethicone) cross polymer
[0408] (Note 3) Made by Shin-Etsu Chemical Co., Ltd.: Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone
[0409] (Note 4) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Ethylhexyl Acrylate / Methacrylate Polydimethylsiloxane) Copolymer
[0410] (Note 5) Shin-Etsu Chemical Co., Ltd.: KF-9909 treated coloring inorganic pigment, W: white, R: red, Y: yellow, B: black
[0411] (Note 6) Shin-Etsu Chemical Co., Ltd.: Polymethylsilsesquioxane
[0412] (Note 7) Shin-Etsu Chemical Co., Ltd.: Polysilicone-22
[0413] (Note 8) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 Disiloxane Dimethicone
[0414] The obtained W / O type concealer was excellent in terms of water release, aesthetics, easy spreadability during application, appearance of makeup, stickiness of makeup, and long-lastingness.
[0415] [Example 20]
[0416] W / O Blush
[0417] <Preparation of cosmetics>
[0418] A: Ingredients 7 to 14 were dispersed using a three-roll mill.
[0419] B: Components 1 to 6 are uniformly mixed.
[0420] C: Components 16 to 22 are uniformly mixed.
[0421] D: C was added to B and emulsified, and A and component 15 were further added to obtain a W / O type blush.
[0422]
[0423]
[0424] (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of 15-25% diphenylsiloxyphenyl trimethicone + (dimethicone / (PEG-10 / 15)) cross polymer
[0425] (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of 10-20% of diphenylsiloxyphenyl trimethicone and (dimethicone / phenyl vinyl dimethicone) cross polymer
[0426] (Note 3) Made by Shin-Etsu Chemical Co., Ltd.: Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone
[0427] (Note 4) Shin-Etsu Chemical Co., Ltd.: Ethyl polymethylsiloxane
[0428] (Note 5) Shin-Etsu Chemical Co., Ltd.: Dynamic viscosity at 25°C: 2 mm 2 / s polydimethylsiloxane
[0429] (Note 6) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Tridecyl Acrylate / Triethoxysilyl Methacrylate / Polydimethylsiloxane Methacrylate) Copolymer
[0430] (Note 7) Shin-Etsu Chemical Co., Ltd.: Polysilicone-22
[0431] The obtained W / O type blush is excellent in water release, aesthetics, easy spreadability during application, appearance of makeup, stickiness of makeup, and long-lastingness.
[0432] [Example 21]
[0433] Hair Cream
[0434] <Preparation of cosmetics>
[0435] A: Components 1 to 6 are uniformly mixed.
[0436] B: Components 7 to 13 are uniformly mixed.
[0437] C: B was added to A and emulsified to obtain a hair cream.
[0438]
[0439] (Note 1) Made by Shin-Etsu Chemical Co., Ltd.: A mixture of 20 to 30% of dimethicone and (dimethicone / (PEG-10 / 15)) cross polymer
[0440] (Note 2) Manufactured by Shin-Etsu Chemical Co., Ltd.: PEG-10 dimethicone
[0441] (Note 3) Shin-Etsu Chemical Co., Ltd.: A mixture of 10 to 20% of diphenylsiloxyphenyl trimethicone and (dimethicone / phenyl vinyl dimethicone) cross polymer
[0442] (Note 4) Shin-Etsu Chemical Co., Ltd.: Methyl trimethicone
[0443] (Note 5) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Dimethicone) Copolymer 40% Dissolved in Methyl Trimethicone
[0444] The obtained hair cream was excellent in water release, aesthetics, spreadability during application, appearance of makeup, stickiness of makeup, and long-lastingness.
[0445] [Example 22]
[0446] W / O Cream
[0447] <Preparation of cosmetics>
[0448] A: Components 1 to 5 are uniformly mixed.
[0449] B: Components 6 to 11 are uniformly mixed.
[0450] C: The mixture obtained in B was slowly added to the mixture obtained in A under stirring and emulsified to obtain a W / O cream.
[0451]
[0452] (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of 20 to 30% of dimethicone (6cs) + (dimethicone / polyglycerol-3) cross polymer
[0453] (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of 10 to 20% of dimethicone (6cs) + (dimethicone / vinyl dimethicone) cross polymer
[0454] (Note 3) Shin-Etsu Chemical Co., Ltd.: Caprylyl Methicone
[0455] (Note 4) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
[0456] (Note 5) Shin-Etsu Chemical Co., Ltd.: (Vinyl dimethicone / polymethylsiloxane silsesquioxane) cross-polymer hydrophilized powder
[0457] The obtained W / O cream was excellent in terms of aesthetics, spreadability during application, appearance of makeup, stickiness of makeup, and long-lastingness.
[0458] [Example 23]
[0459] W / O Cream Foundation
[0460] <Preparation of cosmetics>
[0461] A: Components 1 to 6 are uniformly mixed, and components 7 to 10 are added and mixed uniformly.
[0462] B: Components 11 to 15 are uniformly mixed.
[0463] C: The mixture obtained in B was slowly added to the mixture obtained in A under stirring and emulsified to obtain a W / O cream foundation.
[0464]
[0465] (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of 30-40% of (caprylic acid / capric acid) coconut alkyl esters and (vinyl dimethicone / lauryl dimethicone) cross polymer
[0466] (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of 25 to 35% of octyl polymethicone and (dimethicone / polyglyceryl-3) cross polymer
[0467] (Note 3) Made by Shin-Etsu Chemical Co., Ltd.: Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
[0468] (Note 4) Shin-Etsu Chemical Co., Ltd.: Polymethylsilsesquioxane
[0469] (Note 5) Shin-Etsu Chemical Co., Ltd.: (Vinyl dimethicone / polymethylsiloxane silsesquioxane) crosspolymer
[0470] (Note 6) Shin-Etsu Chemical Co., Ltd.: KF-9909 treated coloring inorganic pigment, W: white, R: red, Y: yellow, B: black
[0471] (Note 7) Made by Shin-Etsu Chemical Co., Ltd.: Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
[0472] The obtained W / O cream foundation was excellent in terms of aesthetics, spreadability during application, appearance of makeup, stickiness of makeup, and long-lastingness.
[0473] [Example 24]
[0474] Sunscreen lotion
[0475] <Preparation of cosmetics>
[0476] A: Components 1 to 10 are uniformly mixed.
[0477] B: Components 13 to 18 are uniformly mixed.
[0478] C: The mixture obtained in the step B is added to the product obtained in the step A and mixed uniformly.
[0479] D: Components 11 and 12 are added to the mixture obtained in step C and mixed uniformly.
[0480] E: The mixture obtained in the step D was degassed and then filled into a container to obtain a sunscreen lotion.
[0481]
[0482]
[0483] (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of 15-25% diphenylsiloxyphenyl trimethicone + (dimethicone / (PEG-10 / 15)) cross polymer
[0484] (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of 10-20% of diphenylsiloxyphenyl trimethicone and (dimethicone / phenyl vinyl dimethicone) cross polymer
[0485] (Note 3) Shin-Etsu Chemical Co., Ltd.: Cetyl PEG / PPG-10 / 1 Dimethicone
[0486] (Note 4) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone
[0487] (Note 5) Shin-Etsu Chemical Co., Ltd.: Ethyl trimethicone
[0488] (Note 6) Shin-Etsu Chemical Co., Ltd.: (Vinyl dimethicone / polymethylsiloxane silsesquioxane) crosspolymer
[0489] (Note 7) Shin-Etsu Chemical Co., Ltd.: 45% cyclopentasiloxane dispersion of fine titanium oxide
[0490] (Note 8) Shin-Etsu Chemical Co., Ltd.: Micronized zinc oxide 60% cyclopentasiloxane dispersion
[0491] (Note 9) Shin-Etsu Chemical Co., Ltd.: (Vinyl dimethicone / polymethylsiloxane silsesquioxane) cross-polymer hydrophilized powder
[0492] The obtained sunscreen lotion is excellent in terms of aesthetics, spreadability during application, appearance of makeup, stickiness of makeup, and long-lastingness.
[0493] [Example 25]
[0494] O / W / O sunscreen]
[0495] <Preparation of cosmetics>
[0496] A: Components 1 to 8 are uniformly mixed.
[0497] B: Components 15 and 16 are uniformly mixed.
[0498] C: Components 9 to 12 are uniformly dissolved in component 13, component 14 is swollen, and then B is mixed.
[0499] D: The mixture obtained in C was slowly added to the mixture obtained in A under stirring and emulsified to obtain an O / W / O type sunscreen.
[0500]
[0501]
[0502] (Note 1) Made by Shin-Etsu Chemical Co., Ltd.: A mixture of 70-80% isododecane and 20-30% (PEG-15 / lauryl dimethicone) cross polymer
[0503] (Note 2) Made by Shin-Etsu Chemical Co., Ltd.: A mixture of 90-95% methyl trimethicone and 5-10% (dimethicone / vinyl dimethicone) cross polymer
[0504] (Note 3) Manufactured by Shin-Etsu Chemical Industry Co., Ltd.: ISOSTEARYLPOLYGLYCERYL-3DIMETHICONE (INCI)
[0505] The obtained O / W / O type sunscreen is excellent in aesthetics, easy spreadability during application, appearance of makeup, stickiness of makeup, and durability. In addition, although the compatibility of the components of the outer oil phase and the inner oil phase is poor, if it is the cosmetic material of the present invention, it can be stably mixed, and a feeling of use that has not been obtained before is obtained.
Claims
1. A water-in-oil cosmetic comprising an oil, the following components (A), (B) and (C), characterized in that: The aqueous phase component contains the following (C) component, (A) one or more selected from partially cross-linked polyether-modified silicones and partially cross-linked polyglycerol-modified silicones, wherein the content of the silicone in the cosmetic is 0.1 to 4% by mass; (B) a non-crosslinked silicone surfactant, which is present in the cosmetic in an amount of 0.05 to 1.5% by mass; (C) Silicone powder, which absorbs 30 parts by mass or more of squalane or ethylhexyl palmitate based on 100 parts by mass of the powder, and the content in the cosmetic is 0.5 to 10% by mass.
2. The water-in-oil cosmetic according to claim 1, wherein The amount of the aqueous phase component including the component (C) in the cosmetic is 30 to 90% by mass.
3. The water-in-oil cosmetic according to claim 1, wherein The component (C) is dispersed in the internal water phase.
4. The water-in-oil cosmetic according to claim 1, wherein The silicone powder absorbs 30 parts by mass or more of squalane or ethylhexyl palmitate based on 100 parts by mass of the silicone powder by immersion at 25° C. for 24 hours.
5. The water-in-oil cosmetic according to claim 1, wherein The silicone powder is silicone rubber particles or silicone rubber powder coated with silicone resin.
6. The water-in-oil cosmetic according to claim 1, wherein The silicone powder is silicone rubber particles which are addition reaction products of (C-1) organohydrogenpolysiloxane and (C-2) organopolysiloxane containing alkenyl groups. The silicone rubber particles are characterized in that one or more components selected from the component (C-1) and the component (C-2) have an alkyl group having 6 to 30 carbon atoms bonded to the silicon atom in an amount of 5 to 70 mol% based on the total molar number of all substituents bonded to the silicon atom.
7. The water-in-oil cosmetic according to claim 6, wherein In the silicone rubber particles, the component (C-1) has an alkyl group having 6 to 30 carbon atoms bonded to the silicon atom at 5 to 70 mol % based on the total molar number of all substituents bonded to the silicon atom.
8. The water-in-oil cosmetic according to claim 6, wherein The component (C-1) is an organohydrogenpolysiloxane represented by the following formula (1) having two or more hydrogen atoms bonded to silicon atoms in one molecule. [Chemical formula 1] (Where R 1 are groups independently selected from alkyl groups having 1 to 5 carbon atoms, aryl groups having 6 to 20 carbon atoms, and aralkyl groups having 7 to 20 carbon atoms, and R 1’ is an alkyl group having 6 to 30 carbon atoms, q1 and q2 are each independently an integer of 1 to 60, p is an integer of 2 to 20, and the bonding of the siloxane units enclosed by p, q1 and q2 may be block or random), and The component (C-2) is an organopolysiloxane having two or more alkenyl groups in one molecule represented by the following formula (2): [Chemical formula 2] (Where R 1’ is an alkyl group having 6 to 30 carbon atoms, R 2 are groups independently selected from alkyl groups having 1 to 5 carbon atoms, aryl groups having 6 to 20 carbon atoms, and aralkyl groups having 7 to 20 carbon atoms, and R 3 is an alkenyl group having 2 to 6 carbon atoms, n1 is an integer of 1 to 40, n2 is an integer of 0 to 50, m is an integer of 0 to 10, k1 and k2 are integers of 0 to 3 respectively, but m+k1+k2 is an integer greater than 2. In addition, the bonding of the siloxane units enclosed by m, n1 and n2 may be block or random), The amount of the component (C-2) is such that the ratio of the number of moles of the alkenyl groups in the component (C-2) to 1 mol of the hydrosilyl groups in the component (C-1) is 0.5 to 2.
9. The water-in-oil cosmetic according to claim 6, wherein The silicone rubber particles further include (C-3) a platinum group metal catalyst in addition to the (C-1) component and the (C-2) component.
10. The water-in-oil cosmetic according to any one of claims 6 to 9, wherein An aqueous dispersion comprising the silicone rubber particles according to any one of claims 6 to 9, the aqueous dispersion comprising: The silicone rubber particles are 5 to 80% by mass; A surfactant, which is 0.01 to 15% by mass; and Water: 19 to 94% by mass.
11. The water-in-oil cosmetic according to claim 1, wherein The silicone powder is spherical silicone rubber particles having a volume average particle size of 0.1 to 100 μm.
12. The water-in-oil cosmetic according to claim 5, wherein: The silicone rubber particles are defined by the cosmetic label name (vinyl dimethicone / lauryl dimethicone) crosspolymer.
13. The water-in-oil cosmetic according to claim 5, wherein: The silicone resin-coated silicone rubber powder is at least one selected from (vinyl dimethicone / methylsiloxane silsesquioxane) cross polymer, (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) cross polymer, polysilicone-22, and polysilicone-1 cross polymer defined by the cosmetic label name.
14. The water-in-oil cosmetic according to claim 5, wherein: The silicone resin coated silicone rubber powder is a (vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane) cross polymer defined by the cosmetic label name, and is a silicone resin coated silicone rubber powder after the surface is hydrophilized.
15. The water-in-oil cosmetic according to claim 1, wherein The cosmetic contains (E) a volatile oil agent as the oil agent in an amount of 1 to 95% by mass.
16. The water-in-oil cosmetic according to claim 1, wherein Furthermore, the cosmetic contains (F) a partially crosslinked organopolysiloxane whose crosslinking segments are siloxane chains in an amount of 0.01 to 30% by mass.
17. The water-in-oil cosmetic according to claim 1, wherein The water-in-oil cosmetic is a water-releasing cosmetic.
18. The water-in-oil cosmetic according to claim 1, wherein The water-in-oil cosmetic is a base cosmetic.
19. A method for producing a water-in-oil cosmetic, characterized in that: The method comprises the steps of adding a water phase component containing the following components (C) and (D) to an oil phase component containing an oil agent, the following component (A) and the following component (B), and stirring the mixture to prepare an emulsion. (A) one or more selected from partially cross-linked polyether-modified silicones and partially cross-linked polyglycerol-modified silicones, in an amount of 0.1 to 4% by mass in the cosmetic; (B) non-crosslinked silicone, which is present in an amount of 0.05 to 1.5% by mass in the cosmetic, (C) a silicone powder which absorbs 30 parts by mass or more of squalane or ethylhexyl palmitate relative to 100 parts by mass of the powder, and the amount thereof is 0.5 to 10% by mass in the cosmetic; (D) An aqueous component is an amount such that the amount of the aqueous phase component including the component (C) in the cosmetic is 30 to 90% by mass.
Citation Information
Patent Citations
Water-in-oil type emulsion cosmetic having excellent phase inversion feeling having high inner water phase ratio
JP2001002521A
Water-releasing cosmetic makeup material
JP2011219448A
Platinum-olefin complex catalyzed addition of hydrogen- and alkenyl-substituted siloxanes
US3159601A
Addition reaction
US3159662A
Organosilicon process using a chloroplatinic acid reaction product as the catalyst
US3220972A