WO2016098456A1 - 共重合体および油性ゲル化剤 - Google Patents
共重合体および油性ゲル化剤 Download PDFInfo
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- WO2016098456A1 WO2016098456A1 PCT/JP2015/080236 JP2015080236W WO2016098456A1 WO 2016098456 A1 WO2016098456 A1 WO 2016098456A1 JP 2015080236 W JP2015080236 W JP 2015080236W WO 2016098456 A1 WO2016098456 A1 WO 2016098456A1
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1812—C12-(meth)acrylate, e.g. lauryl (meth)acrylate
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/042—Gels
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- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
- A61K8/064—Water-in-oil emulsions, e.g. Water-in-silicone emulsions
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- A—HUMAN NECESSITIES
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- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
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- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8158—Homopolymers or copolymers of amides or imides, e.g. (meth) acrylamide; Compositions of derivatives of such polymers
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- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8164—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers, e.g. poly (methyl vinyl ether-co-maleic anhydride)
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- A61Q1/02—Preparations containing skin colorants, e.g. pigments
- A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
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- A61Q1/02—Preparations containing skin colorants, e.g. pigments
- A61Q1/10—Preparations containing skin colorants, e.g. pigments for eyes, e.g. eyeliner, mascara
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1818—C13or longer chain (meth)acrylate, e.g. stearyl (meth)acrylate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/10—General cosmetic use
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
- C08F220/585—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]
Definitions
- the present invention relates to a novel copolymer, and particularly to a copolymer that can be used as an oily gelling agent capable of preparing a stable oily gel-like composition.
- the gel composition has been used in various fields such as cosmetics and foods.
- an oily gelling agent is generally used for forming a gel-like composition containing oil.
- the oily gelling agent include fats and oils containing 70% by mass or more of triglycerides containing palmitic acid and behenic acid having a mass ratio of 30:70 to 70:30 and having an iodine value of 10 or less (Patent Document 1) Is disclosed.
- Patent Document 1 there is room for improvement in the stability and temperature stability of the oily gel composition.
- the present invention has been made in view of the above prior art, and the problem to be solved is a novel copolymer, and a stable oily gel-like composition can be prepared by adjusting the ratio of monomers. It is to provide a copolymer.
- the copolymer according to the present invention includes a hydrophobic monomer represented by the following general formula (1), And a hydrophilic monomer represented by the following general formula (2) and / or the following general formula (3).
- R 1 is a linear or branched alkyl group having 16 to 22 carbon atoms.
- R 2 is a hydrogen atom or a methyl group.
- R 3 is a hydrogen atom, a glyceryl group, a linear or branched hydroxyalkyl group having 1 to 4 carbon atoms, or a polypropylene represented by — (C 3 H 6 O) n H A glycol group (where n is an integer of 2 to 10.
- R 4 is a hydrogen atom or a methyl group.
- R 5 is a hydrogen atom or a methyl group.
- R 6 is a linear or branched alkyl group or hydroxyalkyl group having 1 to 4 carbon atoms, or a group represented by the following general formula (4 ).
- the hydrophobic monomer represented by the general formula (1) is preferably selected from cetyl (meth) acrylate, stearyl (meth) acrylate, and behenyl (meth) acrylate.
- the hydrophilic monomer represented by the general formula (3) is selected from N- (2-hydroxyethyl) acrylamide, N-isopropylacrylamide, and 2-acrylamido-2-methylpropanesulfonic acid. preferable.
- the hydrophilic monomer represented by the general formula (2) is 2-hydroxyethyl acrylate, glyceryl methacrylate, 2-hydroxyethyl methacrylate, PPG-6 acrylate, 2-hydroxypropyl methacrylate, It is preferably selected from 2-hydroxy-2-methylpropyl methacrylate and acrylic acid.
- the hydrophobic monomer and the hydrophilic monomer are 90% or more of the constituent monomers.
- the hydrophobic monomer: hydrophilic monomer is 3: 7 to 8: 2 (molar ratio).
- the hydrophilic monomer represented by the general formula (2) and / or the general formula (3) is N- (2-hydroxyethyl) acrylamide, 2-hydroxyethyl acrylate, or glyceryl methacrylate. Is preferred.
- the copolymer according to the present invention substantially includes a hydrophobic monomer represented by the following general formula (1): And a hydrophilic monomer represented by the following general formula (2) and / or the following general formula (3).
- the oily gelling agent according to the present invention is characterized by comprising the above copolymer.
- the oily gel composition according to the present invention is characterized by blending the oily gelling agent.
- the oily cosmetic according to the present invention includes the oily gel composition.
- the water-in-oil emulsified cosmetic according to the present invention comprises the oily gel composition.
- a novel copolymer can be provided.
- the oil-based gelling agent which can prepare a stable oil-based gel-like composition can be provided by adjusting the ratio of a hydrophobic monomer and a hydrophilic monomer.
- 3 is a graph showing rheology measurement data (oil content: cetyl 2-ethylhexanoate). It is a graph which shows rheology measurement data (oil content: hydrogenated polydecene).
- 2 is a graph showing rheological measurement data (change with temperature) (oil content: cetyl 2-ethylhexanoate). It is a graph which shows rheology measurement data (change with temperature) (oil content: hydrogenated polydecene).
- the copolymer according to the present invention contains a specific hydrophobic monomer and a specific hydrophilic monomer.
- a specific hydrophobic monomer and a specific hydrophilic monomer.
- hydrophobic monomer one or more monomers represented by the following general formula (1) can be used.
- R 1 is a linear or branched alkyl group having 16 to 22 carbon atoms.
- Examples of the linear or branched alkyl group having 16 to 22 carbon atoms include cetyl group, stearyl group, isostearyl group, oleyl group, and behenyl group.
- R 2 is a hydrogen atom or a methyl group.
- Such a hydrophobic monomer is an (meth) acrylic acid alkyl ester (C16 to C22), that is, an ester comprising acrylic acid or methacrylic acid and an alcohol having a hydrocarbon group having 16 to 22 carbon atoms.
- an (meth) acrylic acid alkyl ester C16 to C22
- an ester comprising acrylic acid or methacrylic acid and an alcohol having a hydrocarbon group having 16 to 22 carbon atoms.
- cetyl acrylate, cetyl methacrylate, stearyl acrylate, stearyl methacrylate, isostearyl acrylate, isostearyl methacrylate, oleyl acrylate, oleyl methacrylate, behenyl acrylate, behenyl methacrylate, etc. Can be mentioned.
- hydrophilic monomer one or more monomers represented by the following general formula (2) and / or the following general formula (3) can be used.
- R 3 is a hydrogen atom, a glyceryl group, a linear or branched hydroxyalkyl group having 1 to 4 carbon atoms, or a polypropylene glycol represented by — (C 3 H 6 O) n H It is a group.
- hydroxyalkyl groups examples include 2-hydroxyethyl group, 2-hydroxypropyl group, 2-hydroxyethyl-2-methylpropyl group, 2-hydroxybutyl group, 3-hydroxybutyl group, 4-hydroxybutyl group, etc. Is mentioned. Further, n representing the number of added moles of polypropylene glycol is an integer of 2 to 10.
- R 4 is a hydrogen atom or a methyl group.
- hydrophilic monomer represented by the general formula (2) examples include 2-hydroxyethyl acrylate (HEA), glyceryl methacrylate (GLM), 2-hydroxyethyl methacrylate (HEMA), and PPG-6 acrylate. It is preferably selected from (AP-400), 2-hydroxypropyl methacrylate (HPMA), 2-hydroxy-2-methylpropyl methacrylate (HBMA), and acrylic acid (Aa).
- R 5 is a hydrogen atom or a methyl group.
- R 6 is a linear or branched alkyl group or hydroxyalkyl group having 1 to 4 carbon atoms, or a substituent represented by the following general formula (4).
- Examples of the alkyl group in R 6 include an ethyl group, a propyl group, an isopropyl group, and a butyl group.
- Examples of the hydroxyalkyl group include 2-hydroxyethyl group, 2-hydroxypropyl group, 2-hydroxyethyl-2-methylpropyl group, 2-hydroxybutyl group, 3-hydroxybutyl group, 4-hydroxybutyl group and the like. Can be mentioned.
- hydrophilic monomer represented by the general formula (3) examples include N- (2-hydroxyethyl) acrylamide (HEAA), N-isopropylacrylamide (NIPAM), 2-acrylamido-2-methylpropanesulfonic acid ( Preferably selected from AMPS).
- the copolymer according to the present invention can be either a random type or a block type, but is preferably a random type from the viewpoint of ease of synthesis.
- the copolymer of the present invention can be obtained by the following production method. That is, a hydrophobic monomer represented by the general formula (1) and the general formula (2) and / or the general formula (3) are added to a four-necked flask equipped with a reflux condenser, a thermometer, a nitrogen gas introduction tube, and a stirrer. ) Is charged with a mixture of a hydrophilic monomer represented by () and ethanol, and the temperature is raised in a nitrogen stream. When it reaches the reflux state, a polymerization initiator is added, and the polymerization reaction proceeds while maintaining the reflux state for several hours. Subsequently, after distilling a solvent off from a solution, it can obtain by adding ethanol again.
- a hydrophobic monomer represented by the general formula (1) and the general formula (2) and / or the general formula (3) are added to a four-necked flask equipped with a reflux condenser, a thermometer, a nitrogen gas introduction tube, and a stirr
- the polymerization initiator examples include 2,2'-azobisisobutyronitrile.
- the reflux time after addition of the polymerization initiator is preferably about 3 to 5 hours.
- the copolymer according to the present invention can be used as an oily gelling agent. By blending the copolymer of the present invention, a stable oily gel composition can be obtained.
- the hydrophobic monomer represented by the general formula (1) and the hydrophilic monomer represented by the general formula (2) and / or the general formula (3) are monomers constituting the copolymer, that is, It is preferably 90% or more, more preferably 100% in the constituent monomers.
- the hydrophobic monomer and the hydrophilic monomer are less than 90% in the constituent monomers, they may not be used as an oily gelling agent.
- hydrophobic monomer other than the hydrophobic monomer represented by the general formula (1) examples include methylstyrene, styrene, benzyl acrylate, benzyl methacrylate, phenyl acrylate, methacryl
- examples thereof include phenyl acid, tris (trimethylsiloxy) silylpropyl methacrylate, 2-perflurohexyl-2-ethyl acrylate, and 2-perfluorohexyl-2-ethyl methacrylate.
- hydrophilic monomers other than the hydrophilic monomer represented by the general formula (2) or the general formula (3) that can be included in the copolymer of the present invention include vinylpyrrolidone, vinylimidazole, methoxypolyethylene glycol acrylate, Examples include methoxypolyethylene glycol methacrylate, N, N-dimethylacrylamide, N, N-diethylacrylamide, acroylmorpholine, N- (2-methacryloyloxyethyl) ethyleneurea, and 2-methacryloyloxyethyl phosphorylcholine.
- the ratio of the hydrophobic monomer to the hydrophilic monomer is preferably from 3: 7 to 8: 2 (molar ratio). 7: 3 (molar ratio) is more preferable.
- the ratio of the hydrophilic monomer is too high, it may not be used as an oily gelling agent.
- the ratio of a hydrophobic monomer is too high, when it uses as an oil-based gelling agent, it will become opaque and the gel property may become solid.
- cetyl acrylate, stearyl acrylate, or behenyl acrylate as the hydrophobic monomer represented by the general formula (1).
- a copolymer containing these hydrophobic monomers is excellent in gelling ability and compatibility with oil when used as an oily gelling agent.
- hydrophilic monomer represented by the general formula (2) and / or the formula (3) examples include N- (2-hydroxyethyl) acrylamide (HEAA), 2-hydroxyethyl acrylate (HEA), and glyceryl methacrylate (GLM). Is preferably used. Copolymers containing these hydrophilic monomers are excellent in gelling ability and compatibility with oil when used as an oily gelling agent.
- the copolymer of the present invention is used as an oily gelling agent, the compatibility with silicone oil is low and gelation is difficult. For this reason, it is preferable to contain hydrocarbon oil, ester oil, and alcohol as an oil component.
- the total amount of hydrocarbon oil, ester oil and alcohol is preferably 80% by mass or more, and more preferably 85% by mass or more in the oil content.
- hydrocarbon oil examples include liquid paraffin, tetraisobutane, hydrogenated polydecene, olefin oligomer, isododecane, isohexadecane, squalane, and hydrogenated polyisobutene.
- the ester oils include cetyl 2-ethylhexanoate, triethylhexanoin, 2-ethylhexyl palmitate, neopentyl glycol dicaprate, triisostearate, diisostearyl malate, PPG-3 dipivalate, di-2-ethylhexyl succinate, Examples include 2-ethylhexyl 2-ethylhexanoate, polyglyceryl-6 octacaprylate, and tri (caprylic acid / capric acid) glyceryl. Examples of the alcohol include isostearyl alcohol and oleyl alcohol.
- the copolymer of the present invention is easily prepared by dissolving it in a hydrocarbon oil, an ester oil, and an alcohol and then mixing them. You may heat as needed in melt
- the amount is preferably 2% by mass or more, more preferably 3% by mass or more, in the oily gel composition. If the blending amount is less than 2% by mass, the gelation ability may be inferior. Moreover, 10 mass% or less is preferable in an oil-based gel-like composition, and, as for a compounding quantity, 8 mass% or less is more preferable. If it exceeds 10% by mass, the compatibility with the oil may deteriorate.
- the oily gelling agent of the present invention can be gelled in a small amount, has no stickiness derived from the gelling agent, and can suitably obtain an oily gelled composition.
- Such an oily gel composition can be suitably blended in an oily cosmetic or a water-in-oil emulsified cosmetic.
- stickiness may occur.
- the oily gel composition of the present invention is blended, the stickiness may be increased. Does not occur.
- oily cosmetics include skin care cosmetics (for example, cosmetic liquids), makeup cosmetics (for example, lipsticks and glosses), skin cleansers (for example, makeup removers), hair cosmetics (for example, hair treatments).
- Oil-based cosmetics such as makeup cosmetics (for example, mascara, mascara base, etc.), skin cleansers (for example, makeup remover), hair cosmetics (for example, hair oil), sun care oils, etc. Charge.
- water-in-oil emulsified cosmetics include skin care cosmetics (for example, lotions, milky lotions, creams, cosmetic liquids, etc.), makeup cosmetics (for example, foundations, makeup bases, lipsticks, blushers, eye shadows, mascaras, mascaras). Base), skin cleanser (eg body soap, facial cleanser, makeup remover, etc.), hair cleanser (eg shampoo, etc.), hair cosmetic (eg rinse, hair treatment, hair restorer, etc.), sunscreen makeup And hair dyes.
- skin care cosmetics for example, lotions, milky lotions, creams, cosmetic liquids, etc.
- makeup cosmetics for example, foundations, makeup bases, lipsticks, blushers, eye shadows, mascaras, mascaras).
- Base skin cleanser (eg body soap, facial cleanser, makeup remover, etc.), hair cleanser (eg shampoo, etc.), hair cosmetic (eg rinse, hair treatment, hair restorer, etc.), sunscreen makeup And hair dyes.
- the oily cosmetic or water-in-oil emulsified cosmetic containing the oily gel composition of the present invention includes a moisturizer, ultraviolet absorber, fragrance, antioxidant, antiseptic / antifungal agent, extender pigment, colored pigment, water Ingredients usually used for cosmetics can be blended.
- the present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto.
- the blending amount is expressed in mass% with respect to the system in which the component is blended. Prior to the description of the examples, the evaluation method of the test used in the present invention will be described.
- Evaluation (1) Compatibility with oil The compatibility with the oil when the copolymer was dissolved in various oils at 85 ° C. was visually observed. A: Compatible. B: Slight precipitation was observed. C: Not compatible at all.
- Viscosity A sample which was stored at room temperature (25 ° C.) for 1 hour after production was measured with a B-type viscometer (BL type, 12 rpm).
- Emulsified Particle Diameter The average particle diameter of the emulsified particles after sample preparation was evaluated by microscopic observation.
- the present inventors examined the gelation ability of the copolymer. That is, a copolymer using a hydrophobic monomer and a hydrophilic monomer shown in Table 1 below was produced by the production method described above, and the evaluation methods (1) and (2) were evaluated. As oil, cetyl 2-ethylhexanoate was used. The results are shown in Table 1. In the following table, the blending ratio of the hydrophobic monomer and the hydrophilic monomer is shown as a molar ratio.
- hydrophobic monomer and the hydrophilic monomer are abbreviated.
- the compound names of hydrophobic monomers in the table are as follows.
- DAAM diacetone acrylamide (monomer represented by the following general formula (5))
- the copolymer consisting of stearyl acrylate and N- (2-hydroxyethyl) acrylamide had a remarkable gelling ability at a blending rate of 5%.
- a copolymer composed of behenyl acrylate and N- (2-hydroxyethyl) acrylamide also had a remarkable gelling ability at a blending rate of 5%.
- the present inventors examined the characteristics of the oily gel containing the copolymer of Test Example 1-2. That is, an oily substance using 5% of the copolymer of Test Example 1-2 and a known oily gelling agent (dimethylsilylated silicic anhydride, dextrin palmitate, (behenic acid / eicosanedioic acid) glyceryl, microcrystalline wax).
- the gel was evaluated for the evaluation methods (1) and (2).
- As oil cetyl 2-ethylhexanoate or olefin oligomer 30 was used. The results are shown in Table 2.
- Dimethylsilylated silicic acid Aerosil R972 (manufactured by Nippon Aerosil Co., Ltd.)
- Dextrin palmitate Lion KL (manufactured by Chiba Flour Mills) (Behenic acid / eicosanedioic acid)
- Glyceryl Nomucoat HK-G (Nisshin Oil Industries)
- Microcrystalline wax Permic 160 (manufactured by Nikko Spain)
- the rheology measurement was performed for the sample of Test Example 1-2 (behenic acid / eicosanedioic acid) glyceryl and microcrystalline wax when the temperature was changed.
- the results of measurement using cetyl 2-ethylhexanoate and hydrogenated polydecene are shown in FIGS. 3 and 4, respectively.
- the sample of Test Example 1-2 was stable up to around 60 ° C. in both cases of oil.
- cetyl 2-ethylhexanoate (behenic acid / eicosanedioic acid) glyceryl and microcrystalline wax were in the fracture region and were unstable regardless of temperature.
- hydrogenated polydecene was used, the microcrystalline wax was in the fracture region and was unstable regardless of temperature.
- the type of hydrophilic monomer constituting the copolymer was examined. That is, the present inventors manufactured the copolymer using the hydrophobic monomer and the hydrophilic monomer shown in Table 4 and Table 5 below by the above-described manufacturing method, and evaluated the evaluation methods (1) and (2). . As oil, cetyl 2-ethylhexanoate was used. The results are shown in Table 4 and Table 5.
- the copolymer according to the present invention includes a hydrophobic monomer represented by the general formula (1), a hydrophobic monomer represented by the general formula (2) and / or the general formula (3), and It is necessary to include
- Such a copolymer of the present invention is an oily gelling agent capable of preparing a stable oily gel-like composition, and has good compatibility with oil.
- oily gelling agent capable of preparing a stable oily gel-like composition, and has good compatibility with oil.
- N- (2-hydroxyethyl) acrylamide (HEAA), 2-hydroxyethyl acrylate (HEA), and glyceryl methacrylate (GLM) are used as hydrophilic monomers. It is preferable to use it.
- the ratio (molar ratio) between the hydrophobic monomer and the hydrophilic monomer constituting the copolymer was examined. That is, the present inventors produced a copolymer using a hydrophobic monomer and a hydrophilic monomer shown in Table 6 below by the production method, and evaluated the evaluation methods (1) to (3). As oil, cetyl 2-ethylhexanoate was used. Moreover, it calculated also about HLB of the copolymer. The results are shown in Table 6.
- the ratio of the hydrophobic monomer to the hydrophilic monomer is from 3: 7 to 8: 2 (molar ratio).
- the HLB of the copolymer is preferably 2 to 10.
- the present inventors evaluated the evaluation methods (1) to (3) of the oily gel shown in Table 7 below, which was formulated with the oily gelling agent produced by the production method.
- oil cetyl 2-ethylhexanoate was used. The results are shown in Table 7 (the amount is shown in mass%).
- the present inventors examined the type of oil when the copolymer of the present invention is used as an oily gelling agent. That is, the oily gel shown in Table 8 below, which was blended with the oily gelling agent produced by the above production method, was evaluated for the evaluation methods (1) and (2). The results are shown in Table 8 (the amount is shown in mass%).
- an oily gel was also obtained when another ester oil, hydrocarbon oil or alcohol was used as the oil instead of cetyl 2-ethylhexanoate.
- silicone oil when silicone oil was used, no oily gel was obtained. Therefore, when using the copolymer concerning this invention as an oil-based gelling agent, it is preferable that a hydrocarbon oil, ester oil, and alcohol are included as an oil component. Moreover, it is preferable not to contain silicone oil as an oil component.
- the thing with an emulsion particle diameter of 15 micrometers or less was evaluated as comprehensive evaluation (circle), and the thing with an emulsion particle diameter larger than 15 micrometers was evaluated as comprehensive evaluation x.
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Abstract
Description
油性ゲル化剤としては、例えば質量比30:70~70:30のパルミチン酸とベヘン酸を構成脂肪酸とするトリグリセリド70質量%以上を含み、かつヨウ素価が10以下である油脂(特許文献1)が開示されている。
しかし、油性ゲル状組成物の安定性や温度安定性には、改善の余地があった。
すなわち、本発明にかかる共重合体は、下記一般式(1)で示される疎水性モノマーと、
下記一般式(2)および/または下記一般式(3)で示される親水性モノマーと、を含むことを特徴とする。
前記共重合体において、一般式(3)で示される親水性モノマーが、N-(2-ヒドロキシエチル)アクリルアミド、N-イソプロピルアクリルアミド、2-アクリルアミド-2-メチルプロパンスルホン酸から選択されることが好ましい。
前記共重合体において、一般式(2)で示される親水性モノマーが、アクリル酸2-ヒドロキシエチル、メタクリル酸グリセリル、メタクリル酸2-ヒドロキシエチル、アクリル酸PPG-6、メタクリル酸2-ヒドロキシプロピル、メタクリル酸2-ヒドロキシ-2-メチルプロピル、アクリル酸から選択されることが好ましい。
前記共重合体において、疎水性モノマー:親水性モノマーが3:7~8:2(モル比)であることが好適である。
前記共重合体において、一般式(2)および/または一般式(3)で示される親水性モノマーが、N-(2-ヒドロキシエチル)アクリルアミド、アクリル酸2-ヒドロキシエチル、メタクリル酸グリセリルであることが好適である。
本発明にかかる共重合体は、実質的に、下記一般式(1)で示される疎水性モノマーと、
下記一般式(2)および/または下記一般式(3)で示される親水性モノマーと、からなることを特徴とする。
本発明にかかる油性ゲル化剤は、前記共重合体からなることを特徴とする。
本発明にかかる油性ゲル状組成物は、前記油性ゲル化剤を配合することを特徴とする。
本発明にかかる油性化粧料は、前記油性ゲル状組成物を含むことを特徴とする。
本発明にかかる油中水型乳化化粧料は、前記油性ゲル状組成物を含むことを特徴とする。
直鎖または分岐鎖の16~22の炭素原子を有するアルキル基としては、セチル基、ステアリル基、イソステアリル基、オレイル基、ベヘニル基等が挙げられる。
具体的には、例えば、アクリル酸セチル、メタクリル酸セチル、アクリル酸ステアリル、メタクリル酸ステアリル、アクリル酸イソステアリル、メタクリル酸イソステアリル、アクリル酸オレイル、メタクリル酸オレイル、アクリル酸ベヘニル、メタクリル酸ベヘニル等が挙げられる。
また、ポリプロピレングリコールの付加モル数を表すnは2~10の整数である。
また、ヒドロキシアルキル基としては、2-ヒドロキシエチル基、2-ヒドロキシプロピル基、2-ヒドロキシエチル-2-メチルプロピル基、2-ヒドロキシブチル基、3-ヒドロキシブチル基、4-ヒドロキシブチル基等が挙げられる。
すなわち、還流冷却器、温度計、窒素ガス導入管及び撹拌機が取り付けられた四つ口フラスコに、一般式(1)で示される疎水性モノマーおよび一般式(2)および/または一般式(3)で示される親水性モノマーの混合物とエタノールを仕込み、窒素気流下、昇温する。還流状態となった時点で、重合開始剤を添加し、数時間還流状態を維持して重合反応を進行する。次いで、溶液から溶媒を留去した後、再度エタノールを加えることで得ることができる。
本発明の共重合体に含むことのできる一般式(2)または一般式(3)で示される親水性モノマー以外の親水性モノマーとしては、例えば、ビニルピロリドン、ビニルイミダゾール、アクリル酸メトキシポリエチレングリコール、メタクリル酸メトキシポリエチレングリコール、N,N-ジメチルアクリルアミド、N,N-ジエチルアクリルアミド、アクロイルモルホリン、N-(2-メタクリロイルオキシエチル)エチレンウレア、2-メタクリロイルオキシエチルホスホリルコリン等が挙げられる。
炭化水素油、エステル油、アルコールの合計量は、油分中80質量%以上であることが好ましく、85質量%以上であることがより好ましい。
エステル油としては、2-エチルヘキサン酸セチル、トリエチルヘキサノイン、パルミチン酸2-エチルヘキシル、ジカプリン酸ネオペンチルグリコール、トリイソステアリン、リンゴ酸ジイソステアリル、ジピバリン酸PPG-3、コハク酸ジ2-エチルヘキシル、2-エチルヘキサン酸2-エチルヘキシル、オクタカプリル酸ポリグリセリル-6、トリ(カプリル酸/カプリン酸)グリセリル等が挙げられる。
アルコールとしては、イソステアリルアルコール、オレイルアルコール等が挙げられる。
実施例の説明に先立ち本発明で用いた試験の評価方法について説明する。
共重合体を各種油分に85℃で溶解させた時の油分との相溶性を、目視により観察した。
A:相溶した。
B:わずかに沈殿が見られた。
C:全く相溶しなかった。
共重合体を各種油分に85℃で5%溶解させた後、撹拌しながら35℃まで冷却させた時の状態について、傾斜法により、流動性のない状態をゲルと判定した。
A:ゲル化した。
B:わずかにゲル化した。
C:ゲル化しなかった。
試料の透明性を目視により評価した。
室温(25℃)で保存した製造後1時間経過した試料を、B型粘度計(BL型、12rpm)にて測定した。
試料調製後の乳化粒子の平均粒子径を顕微鏡観察により評価した。
還流冷却器、温度計、窒素ガス導入管及び撹拌機が取り付けられた容量1リットルの四つ口フラスコに、各試験例に示す割合(モル比)の疎水性モノマーおよび親水性モノマーの混合物(合計100質量部)とエタノール250質量部を仕込み、窒素気流下、昇温した。還流状態(約80℃)となった時点で、2,2’-アゾビスイソブチロニトリル1質量部を添加し、4時間還流状態を維持することで重合反応を進行させた。次いで、溶液から溶媒を留去した後、再度エタノールを加えることで固形分濃度50質量%の共重合体(樹脂溶液)を得た。
なお、以下の表において、疎水性モノマーと親水性モノマーの配合割合は、モル比で示されている。
表中における疎水性モノマーの化合物名は、以下の通りである。
SA:アクリル酸ステアリル(一般式(1)で示されるモノマー、R1=ステアリル基、R2=水素)
BEA:アクリル酸ベヘニル(一般式(1)で示されるモノマー、R1=ベヘニル基、R2=水素)
2EHA:アクリル酸2-エチルヘキシル(一般式(1)で示されるモノマー、R1=2-エチルヘキシル基、R2=水素)
LA:アクリル酸ラウリル(一般式(1)で示されるモノマー、R1=ラウリル基、R2=水素)
CA:アクリル酸セチル(一般式(1)で示されるモノマー、R1=セチル基、R2=水素)
HEAA:N-(2-ヒドロキシエチル)アクリルアミド(一般式(3)で示されるモノマー、R5=水素、R6=2-ヒドロキシエチル基)
Aa:アクリル酸(一般式(2)で示されるモノマー、R3=水素、R4=水素)
AMPS:2-アクリルアミド-2-メチルプロパンスルホン酸(一般式(3)で示されるモノマー、R5=水素、R6=一般式(4)で示される置換基)
DAAM:ダイアセトンアクリルアミド(下記一般式(5)で示されるモノマー)
NIPAM:N-イソプロピルアクリルアミド(一般式(3)で示されるモノマー、R5=水素、R6=2-イソプロピル基)
HEMA:メタクリル酸2-ヒドロキシエチル(一般式(2)で示されるモノマー、R3=2-ヒドロキシエチル基、R4=メチル基)
HEA:アクリル酸2-ヒドロキシエチル(一般式(2)で示されるモノマー、R3=2-ヒドロキシエチル基、R4=水素)
GLM:メタクリル酸グリセリル(一般式(2)で示されるモノマー、R3=グリセリル基、R4=メチル基)
QA:N,N,N,-トリメチル-N-(2-ヒドロキシ-3-メタクリロイルオキシプロピル)-アンモニウムクロライド(下記一般式(6)で示されるモノマー)
AE-400:アクリル酸PEG-10(下記一般式(7)で示されるモノマー)
AP-400:アクリル酸PPG-6(一般式(2)で示されるモノマー、R3=-(C3H6O)nH(n=6)、R4=水素)
HPMA:メタクリル酸2-ヒドロキシプロピル(一般式(2)で示されるモノマー、R3=2-ヒドロキシプロピル基、R4=メチル基)
HBMA:メタクリル酸2-ヒドロキシ-2-メチルプロピル(一般式(2)で示されるモノマー、R3=2-ヒドロキシ-2-メチルプロピル基、R4=メチル基)
また、アクリル酸ベヘニルおよびN-(2-ヒドロキシエチル)アクリルアミドからなる共重合体(試験例1-2)も、5%の配合で著しいゲル化能を有していた。
すなわち、試験例1-2の共重合体、公知の油性ゲル化剤(ジメチルシリル化無水ケイ酸、パルミチン酸デキストリン、(ベヘン酸/エイコサン二酸)グリセリル、マイクロクリスタリンワックス)を5%用いた油性ゲルについて、上記評価方法(1)および(2)について評価した。なお、油分としては2-エチルヘキサン酸セチルまたはオレフィンオリゴマー30を用いた。結果を表2に示す。
ジメチルシリル化無水ケイ酸:アエロジルR972(日本アエロジル社製)
パルミチン酸デキストリン:レオパールKL(千葉製粉社製)
(ベヘン酸/エイコサン二酸)グリセリル:ノムコートHK-G(日清製油社製)
マイクロクリスタリンワックス:パーミック160(日興リカ社製)
油分としては、2-エチルヘキサン酸セチルの他に、水添ポリデセンを用いて測定を行った。結果を、それぞれ図1、図2に示す。
油分としては、2-エチルヘキサン酸セチル、水添ポリデセンを用いて測定を行った結果を、それぞれ図3、図4に示す。
試験例1-2の試料、(ベヘン酸/エイコサン二酸)グリセリル、マイクロクリスタリンワックスは、いずれの油分ともゲルを形成することができた。
一方、その他の試料は低ひずみ側のG’は高いがひずみに対して弱く、線形領域がほとんど存在しなかった。
また、2-エチルヘキサン酸セチルを用いた場合、(ベヘン酸/エイコサン二酸)グリセリル、マイクロクリスタリンワックスは破壊領域にあり、温度によらず不安定であった。
また、水添ポリデセンを用いた場合、マイクロクリスタリンワックスは破壊領域にあり、温度によらず不安定であった。
一方、疎水性モノマーとして、(メタ)アクリル酸アルキルエステル(C16~C22)を用いた共重合体は、優れた油性ゲル化剤であった。
また、疎水性モノマーの割合が高すぎると、不透明になることがわかった。また、ゲルの性状も固体っぽくなってしまった。
なお、SA 50/HEAA 50はアクリル酸ステアリル:N-(2-ヒドロキシエチル)アクリルアミド=50:50(モル比)からなる共重合体であって、BEA 60/HEAA 40はアクリル酸ベヘニル:N-(2-ヒドロキシエチル)アクリルアミド=60:40(モル比)からなる共重合体である。
したがって、本発明にかかる共重合体を油性ゲル化剤として用いる場合、油性ゲル化剤の配合量は、組成物中2質量%以上が好ましく、3質量%以上がより好ましい。また、油性ゲル化剤の配合量は、組成物中10質量%以下が好ましく、8質量%以下がより好ましい。
しかし、シリコーン油を用いた場合には、油性ゲルは得られなかった。
したがって、本発明にかかる共重合体を油性ゲル化剤として用いる場合、油分として、炭化水素油、エステル油、アルコールを含むことが好ましい。また、油分として、シリコーン油を含まないことが好ましい。
また、表9では、乳化粒子径が15μm以下のものを総合評価○、乳化粒子径が15μmより大きいものを総合評価×と評価した。
(1)~(5)を90℃で溶解させた後、25℃まで氷冷し、油性ゲル状組成物を得た。その後、(6)を混合し、ディスパー(4000rpm)で混合させ、油中水型乳化化粧料を得た。
配合成分 質量%
(1)リンゴ酸ジイソステアリル 39.9
(2)BEA 60/HEAA 40 6.0
(3)水添レシチン 0.1
(4)ヒマシ油 5.0
(5)流動パラフィン 5.0
(6)重質流動イソパラフィン 40.0
(7)4-tert-ブチル-4’-メトキシジベンゾイルメタン 0.5
(8)ステアリン酸カルシウム 0.5
(9)酸化チタン被覆合成金雲母 1.0
(10)酸化チタン被覆ガラス末 1.0
(11)ジプロピレングリコール 1.0
<製造方法>
1:成分(1)~(3)を95℃で溶解混合させる。
2:成分(4)~(11)を85℃で溶解混合させる。
3:2を1に徐々に添加し、攪拌混合させる。
得られたリップグロス組成物の粘度は85,100mPa・s(30℃)であり、安定性は良好であった。
配合成分 質量%
(1)リンゴ酸ジイソステアリル 39.9
(2)BEA 60/GLM 40 6.0
(3)水添レシチン 0.1
(4)ヒマシ油 5.0
(5)流動パラフィン 5.0
(6)重質流動イソパラフィン 40.0
(7)4-tert-ブチル-4’-メトキシジベンゾイルメタン 0.5
(8)ステアリン酸カルシウム 0.5
(9)酸化チタン被覆合成金雲母 1.0
(10)酸化チタン被覆ガラス末 1.0
(11)ジプロピレングリコール 1.0
<製造方法>
1:成分(1)~(3)を95℃で溶解混合させる。
2:成分(4)~(11)を85℃で溶解混合させる。
3:2を1に徐々に添加し、攪拌混合させる。
得られたリップグロス組成物の粘度は69,200mPa・s(30℃)であり、安定性は良好であった。
配合成分 質量%
(1)軽質イソパラフィン 41.46
(2)マイクロクリスタリンワックス 20.00
(3)マカデミアナッツ油 0.01
(4)ヒマワリ油 0.01
(5)イソステアリン酸 2.50
(6)トリ2-エチルヘキサン酸グリセリル 2.00
(7)酢酸dl-α-トコフェロール 0.02
(8)BEA 60/GLM 40 10.00
(9)デカメチルシクロペンタシロキサン 8.00
(10)トリメチルシロキシケイ酸 10.00
(11)酸化チタン被覆マイカ 3.00
(12)ナイロン末 3.00
<製造方法>
1:成分(1)~(8)を95℃で溶解混合させる。
2:成分(9)~(12)を85℃で混合分散させる。
3:2を1に徐々に添加し、攪拌混合させる。
得られたマスカラ下地組成物の硬度は32(30℃)であり、安定性は良好であった。
配合成分 質量%
(1)水添ポリデセン 60.000
(2)ワセリン 1.000
(3)イソステアリン酸 0.100
(4)メチルシロキサン網状重合体 1.000
(5)BEA 60/HEAA 40 6.000
(6)精製水 15.437
(7)EDTA-3Na 0.100
(8)クエン酸 0.020
(9)クエン酸ナトリウム 0.080
(10)ピロ亜硫酸ナトリウム 0.003
(11)メタリン酸ナトリウム 0.010
(12)アルブチン 3.000
(13)トラネキサム酸 1.000
(14)濃グリセリン 3.000
(15)ジプロピレングリコール 3.000
(16)ポリエチレングリコール1000 1.000
(17)エタノール 5.000
(18)メチルパラベン 0.150
(19)カルボキシメチルセルロースナトリウム 0.100
<製造方法>
1:成分(1)~(5)を95℃で混合分散させる。
2:成分(6)~(19)を70℃で混合分散させる。
3:2を1に徐々に添加し、攪拌混合させる。
得られたクリームはW/O型で粘度は27,000mPa・s(30℃)であり、安定性は良好であった。
Claims (11)
- 下記一般式(1)で示される疎水性モノマーと、
下記一般式(2)および/または下記一般式(3)で示される親水性モノマーと、を含むことを特徴とする共重合体。
- 請求項1に記載の共重合体において、一般式(1)で示される疎水性モノマーが、(メタ)アクリル酸セチル、(メタ)アクリル酸ステアリル、(メタ)アクリル酸ベヘニルから選択されることを特徴とする共重合体。
- 請求項1または2に記載の共重合体において、一般式(3)で示される親水性モノマーが、N-(2-ヒドロキシエチル)アクリルアミド、N-イソプロピルアクリルアミド、2-アクリルアミド-2-メチルプロパンスルホン酸から選択されることを特徴とする共重合体。
- 請求項1~3のいずれかに記載の共重合体において、一般式(2)で示される親水性モノマーが、アクリル酸2-ヒドロキシエチル、メタクリル酸グリセリル、メタクリル酸2-ヒドロキシエチル、アクリル酸PPG-6、メタクリル酸2-ヒドロキシプロピル、メタクリル酸2-ヒドロキシ-2-メチルプロピル、アクリル酸から選択されることを特徴とする共重合体。
- 請求項3または4に記載の共重合体において、一般式(2)および/または下記一般式(3)で示される親水性モノマーが、N-(2-ヒドロキシエチル)アクリルアミド、アクリル酸2-ヒドロキシエチル、メタクリル酸グリセリルであることを特徴とする共重合体。
- 請求項1~5のいずれかに記載の共重合体において、一般式(1)で示される疎水性モノマーと一般式(2)および/または一般式(3)で示される親水性モノマーが、構成モノマー中90%以上であることを特徴とする共重合体。
- 請求項1~6のいずれかに記載の共重合体において、疎水性モノマー:親水性モノマーが3:7~8:2(モル比)であることを特徴とする共重合体。
- 請求項6または7に記載の共重合体からなることを特徴とする油性ゲル化剤。
- 請求項8に記載の油性ゲル化剤を配合することを特徴とする油性ゲル状組成物。
- 請求項9に記載の油性ゲル状組成物を含むことを特徴とする油性化粧料。
- 請求項9に記載の油性ゲル状組成物を含むことを特徴とする油中水型乳化化粧料。
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CN107250181A (zh) | 2017-10-13 |
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EP3235839A1 (en) | 2017-10-25 |
JP6807751B2 (ja) | 2021-01-06 |
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