WO2017170201A1 - ジェル組成物、化粧料、およびジェル組成物の製造方法 - Google Patents
ジェル組成物、化粧料、およびジェル組成物の製造方法 Download PDFInfo
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- WO2017170201A1 WO2017170201A1 PCT/JP2017/011954 JP2017011954W WO2017170201A1 WO 2017170201 A1 WO2017170201 A1 WO 2017170201A1 JP 2017011954 W JP2017011954 W JP 2017011954W WO 2017170201 A1 WO2017170201 A1 WO 2017170201A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/042—Gels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/39—Derivatives containing from 2 to 10 oxyalkylene groups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
- A61K8/42—Amides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
- A61K8/463—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—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
- A61K8/8147—Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/10—Washing or bathing preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/02—Preparations for cleaning the hair
-
- 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
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/48—Thickener, Thickening system
Definitions
- the present invention is, for example, a gel composition that can be suitably used as a thickening agent for viscous liquids and gel cosmetics, used for hair care such as shampoo, skin care such as body shampoo, face wash, etc., a method for producing the same, And a cosmetic comprising the gel composition.
- a thickener for cosmetics for example, natural products such as xanthan gum, semi-synthetic materials such as hydroxyethyl cellulose, and synthetic materials such as carboxyvinyl polymers and alkyl-modified carboxyvinyl polymers are widely used.
- carboxyl group-containing polymers such as carboxyvinyl polymers and alkyl-modified carboxyvinyl polymers exhibit excellent thickening with a small amount of use and can control the feeling of use of cosmetics, and are therefore used in various cosmetics. Yes.
- carboxyl group-containing polymer examples include a carboxyvinyl polymer obtained by reacting acrylic acid and pentaerythritol allyl ether as a crosslinking agent in a specific mixed solvent (see Patent Document 1), and a specific amount of olefinic unsaturated.
- a copolymer obtained by reacting a carboxylic acid monomer with a specific amount of (meth) acrylic acid alkyl ester (alkyl group having 10 to 30 carbon atoms) (see Patent Document 2), a specific amount of olefinic unsaturated carboxylic acid
- a copolymer obtained by reacting an acid monomer with a specific amount of (meth) acrylic acid alkyl ester (alkyl group having 10 to 30 carbon atoms) and a crosslinking agent see Patent Document 3
- an olefinically unsaturated carboxylic acid Alkyls such as copolymers (see Patent Document 4) obtained by reacting monomers with alkyl esters of (meth) acrylic acid (alkyl group having 8 to 30 carbon atoms)
- Modified carboxyvinyl polymers are known. These carboxyl group-containing polymers are usually used in cosmetics by dissolving in water or the like and then neutralizing with an alkali component to obtain a neutralized viscous liquid of about
- the main object of the present invention is to provide a gel composition that can be suitably used as a thickener such as cosmetics, a method for producing the same, and a cosmetic containing the gel composition.
- the desired component can be dispersed and dissolved with high uniformity in a low viscosity state before mixing the anionic emulsifier or the nonionic emulsifier, and then at least one of the anionic emulsifier and the nonionic emulsifier is added. It has been found that a gel composition having a high viscosity can be suitably obtained by addition.
- the gel composition is excellent in viscosity and can be suitably used as a thickener for cosmetics and the like.
- the present invention provides an invention having the following configuration.
- Item 1 100 parts by weight of (meth) acrylic acid (a), 2.5 to 5 parts by weight of (meth) acrylic acid alkyl ester (b) having an alkyl group having 18 to 24 carbon atoms, and two ethylenically unsaturated groups A neutralized product of an alkyl-modified carboxyl group-containing polymer that is a copolymer of a monomer containing not more than 0.1 parts by mass of the compound (c) having at least one of an anionic emulsifier and a nonionic emulsifier, Gel composition.
- Item 2. Item 2.
- the gel composition according to Item 1 wherein the content of the anionic emulsifier is in the range of 0.05% by mass to 1% by mass (solid content) and the pH is in the range of 4 to 5.6.
- Item 3. Item 10. The gel composition according to Item 1, wherein the content of the nonionic emulsifier is in the range of 0.05% by mass to 1% by mass (solid content) and the pH is in the range of 4-13.
- the compound (c) having two or more ethylenically unsaturated groups is at least one selected from the group consisting of pentaerythritol allyl ether, diethylene glycol diallyl ether, polyethylene glycol diallyl ether, and polyallyl saccharose. 4.
- the gel composition according to any one of 3. Item 5.
- Item 5. The gel composition according to any one of Items 1 to 4, wherein the anionic emulsifier is an alkyl sulfate, and the nonionic emulsifier is a polyoxyethylene alkyl ether.
- Item 6. Item 6.
- a cosmetic comprising the gel composition according to any one of Items 1 to 5.
- an alkyl-modified carboxyl group-containing polymer which is a copolymer of monomers containing 0.1 parts by mass or less of the compound (c), is mixed with an alkali component.
- a gel composition that can be suitably used as a thickener for cosmetics and the like, and a method for producing the same.
- the gel composition of the present invention comprises (meth) acrylic acid (a) 100 parts by mass, (meth) acrylic acid alkyl ester (b) having 2.5 to 5 parts by mass of an alkyl group having 18 to 24 carbon atoms, and Compound (c) having two or more ethylenically unsaturated groups Neutralized product of alkyl-modified carboxyl group-containing polymer which is a copolymer of monomers containing 0.1 parts by mass or less, anionic emulsifier and nonionic It contains at least one of emulsifiers.
- the gel composition of the present invention, the production method thereof, and the cosmetics containing the gel composition will be described in detail.
- the “neutralized viscous liquid” means that the pH of the aqueous dispersion of the alkyl-modified carboxyl group-containing polymer is a predetermined value (usually, the pH is about 3.5 to 6.5).
- Viscosity obtained by mixing an alkali component for example, alkali metal hydroxide such as sodium hydroxide, amines such as triethanolamine, diisopropanolamine, etc.
- an alkali component for example, alkali metal hydroxide such as sodium hydroxide, amines such as triethanolamine, diisopropanolamine, etc.
- the “1% by mass neutralized viscous liquid” means a neutralized viscous liquid in which the proportion of the neutralized product of the alkyl-modified carboxyl group-containing polymer is 1% by mass.
- the neutralized product of the alkyl-modified carboxyl group-containing polymer is a compound obtained by partially or completely neutralizing the alkyl-modified carboxyl group-containing polymer with the alkali component as described above.
- the neutralized product of the alkyl-modified carboxyl group-containing polymer is usually a partially neutralized product of the alkyl-modified carboxyl group-containing polymer. It is.
- the pH before neutralizing the alkyl-modified carboxyl group-containing polymer is usually about 2.5 to 3.
- the alkyl-modified carboxyl group-containing polymer is composed of 100 parts by weight of (meth) acrylic acid (hereinafter sometimes referred to as component (a)), and a (meth) acrylic acid alkyl ester having 18 to 24 carbon atoms in the alkyl group (
- component (b) may be 2.5 to 5 parts by mass
- component (c) the compound having two or more ethylenically unsaturated groups
- It is a copolymer. That is, at least the components (a) and (b) are copolymerized in the alkyl-modified carboxyl group-containing polymer of the present invention, and the component (c) is also copolymerized as necessary.
- (meth) acrylic acid (component (a)) at least one of acrylic acid and methacrylic acid can be used.
- the (meth) acrylic acid alkyl ester (component (b)) having an alkyl group having 18 to 24 carbon atoms is an ester of (meth) acrylic acid and a higher alcohol having an alkyl group having 18 to 24 carbon atoms. is there.
- Specific examples of component (b) include esters of (meth) acrylic acid and stearyl alcohol (ie, stearyl (meth) acrylate), esters of (meth) acrylic acid and eicosanol (ie, (meth) acrylic acid).
- Eicosanyl esters of (meth) acrylic acid and behenyl alcohol (ie, behenyl (meth) acrylate), esters of (meth) acrylic acid and tetracosanol (ie, tetracosanyl (meth) acrylate), etc.
- esters of (meth) acrylic acid and behenyl alcohol ie, behenyl (meth) acrylate
- esters of (meth) acrylic acid and tetracosanol ie, tetracosanyl (meth) acrylate
- stearyl methacrylate, eicosanyl methacrylate, behenyl methacrylate, tetracosanyl methacrylate and the like are preferably used.
- one type of component (b) constituting the monomer may be used, or two or more types may be used.
- component (b) for example, trade name Blemmer VMA-70 manufactured by Nippon Oil & Fats Co., Ltd. (stearyl methacrylate is 10 to 20 parts by mass, eicosanyl methacrylate is 10 parts by mass)
- stearyl methacrylate is 10 to 20 parts by mass
- eicosanyl methacrylate is 10 parts by mass
- To 20 parts by mass 59 to 80 parts by mass of behenyl methacrylate, and 1 part by mass or less of tetracosanyl methacrylate) can be used.
- the proportion of component (b) in the alkyl-modified carboxyl group-containing polymer is 2.5 to 5 parts by mass with respect to 100 parts by mass of (meth) acrylic acid (component (a)).
- the proportion of the component (b) is preferably 100 parts by mass of the component (a). 1 part by mass to 3 parts by mass can be mentioned.
- component (b) When the proportion of component (b) is less than 2.5 parts by mass with respect to 100 parts by mass of component (a), the gel composition in the presence of at least one of an anionic emulsifier and a nonionic emulsifier On the other hand, the viscosity of the gel composition tends to be low when it exceeds 5 parts by mass.
- the compound having two or more ethylenically unsaturated groups is a compound having two or more ethylenically unsaturated groups having polymerizability.
- a component (c) comprises the monomer of the alkyl-modified carboxyl group containing polymer as needed.
- the component (c) include pentaerythritol polyallyl ethers such as pentaerythritol diallyl ether, pentaerythritol triallyl ether, pentaerythritol tetraallyl ether, etc.
- ether diethylene glycol diallyl ether, polyethylene glycol diallyl ether, polyallyl saccharose and the like.
- the component (c) constituting the monomer may be one type or two or more types as necessary.
- the proportion of component (c) in the alkyl-modified carboxyl group-containing polymer is 0.1 parts by mass or less, preferably 0.0001-0.100, per 100 parts by mass of (meth) acrylic acid (component (a)). 05 parts by mass, more preferably 0.001 to 0.044 parts by mass.
- the ratio of a component (c) exceeds 0.1 mass part, the viscosity of a gel composition will fall easily and there exists a possibility that the stability of the cosmetics using the said gel composition may deteriorate.
- the monomer other than the above-mentioned components (a) to (c) (other monomer capable of copolymerization with at least one of components (a) to (c)) Body) may be copolymerized.
- lauryl (meth) acrylate can be used in a proportion of more than 0 parts by weight and 1 part by weight or less with respect to 100 parts by weight of the total amount of components (a) to (c).
- the total ratio of components (a) to (c) in the monomer constituting the alkyl-modified carboxyl group-containing polymer is not particularly limited, but is preferably 50% by mass or more, more preferably About 80% by mass to 100% by mass, more preferably about 90% by mass to 100% by mass, and particularly preferably about 95% by mass to 100% by mass.
- the total ratio may be substantially 100% by mass.
- the production method of the alkyl-modified carboxyl group-containing polymer is not particularly limited, and a raw material containing at least the above-mentioned component (a) and component (b), and a solution obtained by adding a polymerization initiator to a solvent are treated with an inert gas atmosphere. There is a method of polymerizing by heating while stirring under.
- the inert gas for making the inert gas atmosphere is not particularly limited, and examples thereof include nitrogen gas and argon gas.
- the solvent is not particularly limited as long as at least the component (a) and the component (b) are dissolved, but the produced alkyl-modified carboxyl group-containing polymer is not dissolved and does not inhibit the copolymerization reaction.
- the solvent include hydrocarbon solvents such as normal pentane, normal hexane, normal heptane, cyclopentane and cyclohexane; ester solvents such as methyl acetate, ethyl acetate, propyl acetate and butyl acetate.
- a solvent may be used by 1 type and may be used in combination of 2 or more type. Among these solvents, normal hexane, normal heptane, ethyl acetate and the like are preferably used.
- the amount of the solvent used is preferably 300 to 5,000 parts by mass with respect to 100 parts by mass of component (a), from the viewpoint of improving the stirring operability and economy.
- the polymerization initiator for example, a radical polymerization initiator is preferable.
- the polymerization initiator include ⁇ , ⁇ ′-azoisobutyronitrile, 2,2′-azobis (2,4-dimethylvaleronitrile), 2,2′-azobis (methylisobutyrate), and the like. is there.
- 2,2'-azobis (methyl isobutyrate) is preferable from the viewpoint of easily obtaining a high molecular weight alkyl-modified carboxyl group-containing polymer.
- a polymerization initiator may be used by 1 type and may be used in combination of 2 or more types.
- the amount of the polymerization initiator used is preferably about 0.00003 mol to 0.002 mol with respect to 1 mol of component (a) from the viewpoint of keeping the reaction rate moderate.
- the amount of the polymerization initiator used is 0.00003 mol or more, the reaction rate does not become too slow, which is economical.
- the usage-amount of a polymerization initiator is 0.002 mol or less, it suppresses that a superposition
- the polymerization temperature is preferably about 50 ° C. to 90 ° C., more preferably about 55 ° C. to 75 ° C., from the viewpoint of keeping the reaction rate moderate.
- the polymerization time varies depending on the polymerization temperature, but is usually about 0.5 to 5 hours.
- the alkyl-modified carboxyl group-containing polymer is obtained. Obtainable. By setting the heating temperature at this time to 80 ° C. or higher, the drying time can be shortened. Moreover, the fall of the dispersibility to the water of the alkyl-modified carboxyl group containing polymer can be suppressed suitably by making heating temperature into 130 degrees C or less.
- the alkyl-modified carboxyl group-containing polymer (not in the coexistence of at least one of an anionic emulsifier and a nonionic emulsifier) has a viscosity at 5,000 mPa ⁇ s at 25 ° C. when it is a 1% by weight neutralized viscous liquid.
- the following is preferable, and it is more preferably about 100 to 1000 mPa ⁇ s.
- a viscosity means the value measured by the method described in the Example.
- the content of the neutralized product of the alkyl-modified carboxyl group-containing polymer is not particularly limited, but is preferably about 0.1% by mass to 2% by mass, more preferably 0.5% by mass. % To 1.5% by mass.
- the anionic emulsifier is preferably polyoxyethylene (hereinafter sometimes abbreviated as POE) from the viewpoint of increasing the viscosity of the gel composition in the presence of the neutralized product of the alkyl-modified carboxyl group-containing polymer.
- POE polyoxyethylene
- Polyoxyethylene alkyl ether sulfates such as sodium lauryl ether sulfate and POE isodecyl ether ammonium sulfate; Polyoxyethylene alkyl ether phosphates such as POE lauryl ether phosphate and POE tridecyl ether phosphate; ammonium lauryl sulfate and ammonium laureth sulfate , Lauryl sulfate triethylamine, laureth sulfate triethylamine, lauryl sulfate triethanolamine, laureth sulfate triethanolamine, lauryl sulfate monoethanolamine, laureth sulfate Alkyl sulfates such as monoethanolamine, diethanolamine lauryl sulfate, diethanolamine laureth sulfate, sodium lauryl sulfate, sodium laureth sulfate, potassium laureth sulfate, potassium lauryl
- Sulfosuccinate Sulfosuccinate; fatty acid salts such as potassium laurate and sodium stearate.
- lauryl sulfate such as sodium lauryl sulfate
- laureth sulfate such as sodium laureth sulfate are used from the viewpoint of good foaming when the gel composition of the present invention is blended in cosmetics and obtaining a conditioning effect. Is preferred.
- Each of these anionic emulsifiers may be used alone or in combination of two or more.
- the nonionic emulsifier is preferably polyoxyethylene lauryl ether or POE tridecyl ether from the viewpoint of increasing the viscosity of the gel composition in the presence of the neutralized product of the alkyl-modified carboxyl group-containing polymer.
- Polyoxyethylene alkyl ethers such as POE cetyl ether and POE stearyl ether; polyoxyethylene polyoxypropylene (hereinafter sometimes referred to as POP) lauryl ether, POE ⁇ POP cetyl ether, POE ⁇ POP stearyl ether, etc.
- Ethylene / polyoxypropylene alkyl ethers polyoxyethylene sorbitan fatty acid esters such as POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan distearate; POE sorby Polyoxyethylene sorbite fatty acid esters such as tomonooleate, POE sorbite monostearate, POE sorbite distearate; polyoxyethylene glycerin fatty acid esters such as POE glycerin monooleate, POE glycerin monostearate, POE glycerin distearate; Polyoxyethylene fatty acid esters such as POE monooleate, POE monostearate, POE distearate, etc .; POE castor oil, POE hydrogenated castor oil, POE hydrogenated castor oil monolaurate, polyoxyethylene castor oil such as POE hydrogenated castor oil monoisostearate Derivatives; polyoxyethylene alky
- polyoxyethylene lauryl ether or the like from the viewpoint that foaming is good when the gel composition of the present invention is blended in cosmetics, and that the conditioning effect is obtained with low irritation.
- One of these nonionic emulsifiers may be used alone, or two or more thereof may be used in combination.
- an anionic emulsifier and a nonionic emulsifier may be used in combination.
- the content of the anionic emulsifier and the nonionic emulsifier is, for example, when the pH of the gel composition of the present invention is set low (for example, the pH is in the range of about 4 to 5.6).
- the content of the anionic emulsifier is preferably about 0.05% by mass to 1% by mass (solid content), more preferably 0.1% by mass to 0.5%. It is about mass% (solid content).
- the content of the nonionic emulsifier is as follows. Preferably, it is about 0.05% by mass to 1% by mass (solid content), more preferably about 0.1% by mass to 0.5% by mass (solid content).
- the amount of the anionic emulsifier is about 0.05% by mass to 1% by mass (solid content), more preferably about 0.1% by mass to 0.5% by mass (solid content).
- a gel composition having a high viscosity can be obtained under a low pH of 4 to 5.6, and it can be suitably used as a thickener for cosmetics and the like.
- the gel composition of the present invention has a particularly large difference in viscosity before and after the addition of the anionic emulsifier in such a low pH range, for example, in a low viscosity state before the addition of the anionic emulsifier, By mixing various components uniformly and then adding an anionic emulsifier, a gel composition having a high viscosity can be suitably formed in a low pH range.
- the amount of the nonionic emulsifier is about 0.05% by mass to 1% by mass (solid content), more preferably 0.1% by mass to 0.5% by mass (solid content).
- the gel composition can have a high viscosity under a wide pH range of 4 to 13, and can be suitably used as a thickener for cosmetics and the like.
- the gel composition of the present invention has a particularly large difference in viscosity before and after adding the nonionic emulsifier in such a wide pH range, for example, in a low viscosity state before adding the nonionic emulsifier, By mixing various components uniformly and then adding a nonionic emulsifier, a gel composition having a high viscosity can be suitably formed in a low pH range.
- the content of the anionic emulsifier is set to about 0.05% by mass to 1% by mass (solid content), so that the viscosity is, for example, It can be set to 15,000 mPa ⁇ s or more, or 20,000 mPa ⁇ s or more. In this case, the upper limit of the viscosity is usually about 200,000 mPa ⁇ s.
- the gel composition of the present invention has a viscosity of, for example, 20 by adjusting the content of the nonionic emulsifier to about 0.05% by mass to 1% by mass (solid content) in a wide range of pH of 4 to 13. 30,000 mPa ⁇ s or more, and further 30,000 mPa ⁇ s or more.
- the upper limit of the viscosity is usually about 200,000 mPa ⁇ s.
- the details of the mechanism that the gel composition of the present invention has high viscosity and can be suitably used as a thickener for cosmetics and the like are not necessarily clear, but can be considered as follows, for example. That is, in the present invention, the neutralized product of the alkyl-modified carboxyl group-containing polymer contained in the gel composition is obtained by copolymerizing the above-mentioned components (a) to (c) in the predetermined amount. Since the neutralized product of the alkyl-modified carboxyl group-containing polymer and at least one of the anionic emulsifier and the nonionic emulsifier preferably form an aggregate in water and thicken, the gel composition has a high viscosity. It is thought that.
- the gel composition of the present invention usually contains water in addition to the components (a) to (c).
- the water content in the gel composition of the present invention is not particularly limited, but is preferably 91.4 to 99.3% by mass, more preferably 92.0 to 99.0% by mass.
- the gel composition of the present invention has other thickeners, alcohols, pH adjusters, moisturizers, oils, salts, cationic surfactants, amphoteric surfactants, chelating agents within the range that does not impair the purpose.
- various additives such as preservatives, antioxidants, ultraviolet absorbers, pigments and fragrances may be contained.
- the gel composition of the present invention can be suitably used as a thickening agent for viscous liquid or gel cosmetics used in hair care such as shampoo, skin care such as body shampoo and face wash.
- the cosmetic of the present invention includes the gel composition of the present invention, and may further include various cosmetic ingredients blended in the cosmetic.
- the step of preparing the neutralized product of the polymer containing the mixture The step of mixing the neutralized product of the alkyl-modified carboxyl group-containing polymer and at least one of the anionic emulsifier and the nonionic emulsifier
- the pH of the gel composition is adjusted to a desired value by adding an alkali component before and after mixing at least one of the anionic emulsifier and the nonionic emulsifier. Can do.
- various additives may be further mixed.
- Various additives can be mixed before and after mixing the neutralized product of the alkyl-modified carboxyl group-containing polymer with at least one of an anionic emulsifier and a nonionic emulsifier.
- Viscosity measurement Using a BH type rotational viscometer, spindle rotor no. The viscosity after 1 minute was measured at a rotation speed of 7 at 20 rotations per minute.
- Production Example 2 In Production Example 1, the amount of use of Blemmer VMA70 (manufactured by NOF Corporation) was changed to 1.125 g, and the amount of pentaerythritol allyl ether (mixture of pentaerythritol triallyl ether and pentaerythritol tetraallyl ether) was changed to 0.1. 45 g of a white fine powdery alkyl-modified carboxyl group-containing polymer (polymer 2) was obtained in the same manner as in Production Example 1 except that the amount was changed from 02 g to 0.135 g.
- Examples 1 to 4 In the same manner as in Reference Example 1, 144 g of the neutralized viscous liquid in which the polymer 1 was adjusted to about pH 3.8 was subdivided into 200 L beakers, and a stirring speed of 500 revolutions per minute using four paddle blades ( ⁇ 50 mm).
- sodium lauryl sulfate content or sodium laureth sulfate content is 0.1 mass% (solid content), 0.50 mass% (solid content), respectively)
- Sodium laureth sulfate (Emar 20C manufactured by Kao Co., Ltd., 25% by mass of sodium laureth sulfate) and distilled water each gel composition
- Each gel composition was prepared by slowly adding the amount of the product to 150 g, and increasing the stirring speed to 1000 rpm to mix for 1 hour.
- the viscosity of the composition is very low, and each component can be easily uniformly dispersed and dissolved.
- a predetermined amount of an anionic emulsifier is added (sodium lauryl sulfate content or sodium laureth sulfate content is 0.1% by mass and 0.50% by mass, respectively). It can be seen that a gel composition is obtained.
- Examples 5 and 6 In the same manner as in Reference Example 1, 144 g of the neutralized viscous liquid in which the polymer 1 was adjusted to about pH 3.8 was subdivided into 200 L beakers, and a stirring speed of 500 revolutions per minute using four paddle blades ( ⁇ 50 mm). Under the conditions shown in Table 5, the content of polyoxyethylene is adjusted so that the content of polyoxyethylene lauryl ether is 0.1% by mass (solid content) and 0.50% by mass (solid content), respectively. Lauryl ether (Emalgen 108 manufactured by Kao Corporation, 100% by mass of polyoxyethylene lauryl ether) and distilled water (each of which the gel composition is 150 g) are slowly added, and the stirring speed is increased to 1000 rpm.
- Lauryl ether (Emalgen 108 manufactured by Kao Corporation, 100% by mass of polyoxyethylene lauryl ether) and distilled water (each of which the gel composition is 150 g) are slowly added, and the stirring speed is increased to 1000 rpm.
- Each gel composition was prepared by mixing for 1 hour. Next, to the obtained gel composition, a predetermined amount of an 18% by mass sodium hydroxide aqueous solution was added and stirred uniformly to change the pH as shown in Table 5, and each of the neutralized viscous liquids. The viscosity at pH was measured. The results are shown in Table 5.
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Abstract
Description
項1. (メタ)アクリル酸(a)100質量部、アルキル基の炭素数が18~24である(メタ)アクリル酸アルキルエステル(b)2.5~5質量部、およびエチレン性不飽和基を2個以上有する化合物(c)0.1質量部以下を含む単量体の共重合体であるアルキル変性カルボキシル基含有重合体の中和物と、アニオン系乳化剤及びノニオン系乳化剤の少なくとも一方とを含む、ジェル組成物。
項2. 前記アニオン系乳化剤の含有量が、0.05質量%~1質量%(固形分)の範囲内にあり、pHが4~5.6の範囲にある、項1に記載のジェル組成物。
項3. 前記ノニオン系乳化剤の含有量が、0.05質量%~1質量%(固形分)の範囲内にあり、pHが4~13の範囲にある、項1に記載のジェル組成物。
項4. 前記エチレン性不飽和基を2個以上有する化合物(c)が、ペンタエリスリトールアリルエーテル、ジエチレングリコールジアリルエーテル、ポリエチレングリコールジアリルエーテルおよびポリアリルサッカロースからなる群より選ばれた少なくとも1種である、項1~3のいずれかに記載のジェル組成物。
項5. 前記アニオン系乳化剤がアルキル硫酸塩であり、前記ノニオン系乳化剤がポリオキシエチレンアルキルエーテルである、項1~4のいずれかに記載のジェル組成物。
項6. 項1~5のいずれかに記載のジェル組成物を含む、化粧料。
項7. (メタ)アクリル酸(a)100質量部、アルキル基の炭素数が18~24である(メタ)アクリル酸アルキルエステル(b)2.5~5質量部、およびエチレン性不飽和基を2個以上有する化合物(c)0.1質量部以下を含む単量体の共重合体であるアルキル変性カルボキシル基含有重合体と、アルカリ成分とを混合して、前記アルキル変性カルボキシル基含有重合体の中和物を調製する工程、及び
前記アルキル変性カルボキシル基含有重合体の中和物と、アニオン系乳化剤及びノニオン系乳化剤の少なくとも一方とを混合する工程、
を備える、ジェル組成物の製造方法。
(メタ)アクリル酸(a)100質量部、アルキル基の炭素数が18~24である(メタ)アクリル酸アルキルエステル(b)2.5~5質量部、およびエチレン性不飽和基を2個以上有する化合物(c)0.1質量部以下を含む単量体の共重合体である、前述のアルキル変性カルボキシル基含有重合体と、前述のアルカリ成分とを混合して、前記アルキル変性カルボキシル基含有重合体の中和物を調製する工程
前記アルキル変性カルボキシル基含有重合体の中和物と、前記アニオン系乳化剤及びノニオン系乳化剤の少なくとも一方とを混合する工程
BH型回転粘度計を用いて、25℃でスピンドルローターNo.7の回転速度を毎分20回転として1分後の粘度を測定した。
攪拌機、温度計、窒素吹き込み管および冷却管を備えた500mL容の四つ口フラスコに、アクリル酸45g(0.625モル)、ブレンマーVMA70(日本油脂株式会社製:メタクリル酸ステアリルが10~20質量部、メタクリル酸エイコサニルが10~20質量部、メタクリル酸ベヘニルが59~80質量部およびメタクリル酸テトラコサニルの含有量が1質量部以下の混合物)1.4g、ペンタエリスリトールアリルエーテル(ペンタエリスリトールトリアリルエーテルとペンタエリスリトールテトラアリルエーテルの混合物)0.02g、ノルマルヘキサン150gおよび2,2’-アゾビスメチルイソブチレート0.081g(0.00035モル)を仕込んだ。その後、フラスコの内容物を均一に攪拌しながら、フラスコ内の酸素を除去するために、溶液中に窒素ガスを吹き込んだ。その後、攪拌と窒素ガスの吹き込みを続けた状態で、内容物を加熱するため、オイルバスの設定を60~65℃に設定し、4時間保持した。その後、オイルバスの設定温度を90℃に設定して、ノルマルヘキサンを除去した。その後、フラスコの内容物を減圧乾燥機(Yamatho社製、バキュームドライオーブンDP33)に移し、オーブンの設定温度を110℃に設定し、設定圧力を10mmHgに設定して8時間乾燥し、白色微粉末状のアルキル変性カルボキシル基含有重合体(重合体1)45gを得た。
製造例1において、ブレンマーVMA70(日本油脂株式会社製)の使用量を1.125gに変更し、ペンタエリスリトールアリルエーテル(ペンタエリスリトールトリアリルエーテルとペンタエリスリトールテトラアリルエーテルの混合物)の使用量を0.02gから0.135gに変更したこと以外は製造例1と同様にして、白色微粉末状のアルキル変性カルボキシル基含有重合体(重合体2)45gを得た。
(参考例1)
ディスパー羽根(Φ40mm)をセットした超高速攪拌システムT.K.ロボミックス(プライミクス株式会社製)を使用して、蒸留水987.7gの入った2Lビーカーに、10gの重合体1を毎分5000回転の攪拌速度下、徐々に投入して分散させた。5000回転で10分間攪拌した後、攪拌速度を毎分3000回転に下げ、20分間攪拌継続した。その後、毎分1400回転の攪拌速度で18質量%水酸化ナトリウム水溶液2.3gを入れ、内容物が均一となるまで攪拌し、pH3.8程度の中和粘稠液を調製した。次に、18質量%水酸化ナトリウム水溶液を所定量加えて均一に攪拌することによって、表1に示されるようにpHを変化させて、中和粘稠液の各pHにおける粘度を測定した(表1の乳化剤含量0質量%)。結果を表1に示す。
参考例1と同様にして重合体1がpH3.8程度に調整された中和粘稠液144gを、200Lビーカーに小分けし、4枚パドル翼(Φ50mm)を用いて毎分500回転の攪拌速度下で、表2に記載の各含量(それぞれ、ラウリル硫酸ナトリウム含量またはラウレス硫酸ナトリウム含量が、0.1質量%(固形分)、0.50質量%(固形分))となるようにして、ラウリル硫酸ナトリウム(花王株式会社製のエマール10G、ラウリル硫酸ナトリウム98質量%)と蒸留水、ラウレス硫酸ナトリウム(花王株式会社製のエマール20C、ラウレス硫酸ナトリウム25質量%)と蒸留水(それぞれ、ジェル組成物が150gとなる量)をゆっくり添加し、攪拌速度を毎分1000回転に上げて1時間混合して、各ジェル組成物を調製した。次に、得られたジェル組成物に、18質量%水酸化ナトリウム水溶液を所定量加えて均一に攪拌することにより、表2に示されるようにpHを変化させて、中和粘稠液の各pHにおける粘度を測定した。結果を表2に示す。
重合体1の代わり重合体2を用いたこと以外は、参考例1と同様にして、pH3.8程度の中和粘稠液を調製した。次に、18質量%水酸化ナトリウム水溶液を所定量加えて均一に攪拌することによって、表3に示されるようにpHを変化させて、中和粘稠液の各pHにおける粘度を測定した(表3の乳化剤含量0質量%)。結果を表3に示す。
参考例2と同様にして重合体2(重合体1に比して、高架橋度の重合体)がpH3.8程度に調整された中和粘稠液144gを、200Lビーカーに小分けし、4枚パドル翼(Φ50mm)を用いて毎分500回転の攪拌速度下で、表4に記載の含量(ラウリル硫酸ナトリウム含量が0.1質量%(固形分))となるようにして、ラウリル硫酸ナトリウム(花王株式会社製のエマール10G、ラウリル硫酸ナトリウム98質量%)と蒸留水(ジェル組成物が150gとなる量=5.85g)をゆっくり添加し、攪拌速度を毎分1000回転に上げて1時間混合して、ジェル組成物を調製した。次に、得られたジェル組成物に、18質量%水酸化ナトリウム水溶液を所定量加えて均一に攪拌することにより、表4に示されるようにpHを変化させて、中和粘稠液の各pHにおける粘度を測定した。結果を表4に示す。
参考例1と同様にして重合体1がpH3.8程度に調整された中和粘稠液144gを、200Lビーカーに小分けし、4枚パドル翼(Φ50mm)を用いて毎分500回転の攪拌速度下で、表5に記載の各含量(それぞれ、ポリオキシエチレンラウリルエーテル含量が、0.1質量%(固形分)、0.50質量%(固形分))となるようにして、ポリオキシエチレンラウリルエーテル(花王株式会社製のエマルゲン108、ポリオキシエチレンラウリルエーテル100質量%)と蒸留水(それぞれ、ジェル組成物が150gとなる量)をゆっくり添加し、攪拌速度を毎分1000回転に上げて1時間混合して、各ジェル組成物を調製した。次に、得られたジェル組成物に、18質量%水酸化ナトリウム水溶液を所定量加えて均一に攪拌することにより、表5に示されるようにpHを変化させて、中和粘稠液の各pHにおける粘度を測定した。結果を表5に示す。
形分)、0.50質量%(固形分))ことにより、高粘度のジェル組成物が得られることが
分かる。
参考例2と同様にして重合体2(重合体1に比して、高架橋度の重合体)がpH3.8程度に調整された中和粘稠液144gを、200Lビーカーに小分けし、4枚パドル翼(Φ50mm)を用いて毎分500回転の攪拌速度下で、表6に記載の含量(ポリオキシエチレンラウリルエーテル含量が0.50質量%(固形分))となるようにして、ポリオキシエチレンラウリルエーテル(花王株式会社製のエマルゲン108、ポリオキシエチレンラウリルエーテル100質量%)と蒸留水(ジェル組成物が150gとなる量=5.25g)をゆっくり添加し、攪拌速度を毎分1000回転に上げて1時間混合して、ジェル組成物を調製した。次に、得られたジェル組成物に、18質量%水酸化ナトリウム水溶液を所定量加えて均一に攪拌することにより、表6に示されるようにpHを変化させて、中和粘稠液の各pHにおける粘度を測定した。結果を表6に示す。
Claims (7)
- (メタ)アクリル酸(a)100質量部、アルキル基の炭素数が18~24である(メタ)アクリル酸アルキルエステル(b)2.5~5質量部、およびエチレン性不飽和基を2個以上有する化合物(c)0.1質量部以下を含む単量体の共重合体であるアルキル変性カルボキシル基含有重合体の中和物と、アニオン系乳化剤及びノニオン系乳化剤の少なくとも一方とを含む、ジェル組成物。
- 前記アニオン系乳化剤の含有量が、0.05質量%~1質量%(固形分)の範囲内にあり、pHが4~5.6の範囲にある、請求項1に記載のジェル組成物。
- 前記ノニオン系乳化剤の含有量が、0.05質量%~1質量%(固形分)の範囲内にあり、pHが4~13の範囲にある、請求項1に記載のジェル組成物。
- 前記エチレン性不飽和基を2個以上有する化合物(c)が、ペンタエリスリトールアリルエーテル、ジエチレングリコールジアリルエーテル、ポリエチレングリコールジアリルエーテルおよびポリアリルサッカロースからなる群より選ばれた少なくとも1種である、請求項1~3のいずれかに記載のジェル組成物。
- 前記アニオン系乳化剤がアルキル硫酸塩であり、前記ノニオン系乳化剤がポリオキシエチレンアルキルエーテルである、請求項1~4のいずれかに記載のジェル組成物。
- 請求項1~5のいずれかに記載のジェル組成物を含む、化粧料。
- (メタ)アクリル酸(a)100質量部、アルキル基の炭素数が18~24である(メタ)アクリル酸アルキルエステル(b)2.5~5質量部、およびエチレン性不飽和基を2個以上有する化合物(c)0.1質量部以下を含む単量体の共重合体であるアルキル変性カルボキシル基含有重合体と、アルカリ成分とを混合して、前記アルキル変性カルボキシル基含有重合体の中和物を調製する工程、及び
前記アルキル変性カルボキシル基含有重合体の中和物と、アニオン系乳化剤及びノニオン系乳化剤の少なくとも一方とを混合する工程、
を備える、ジェル組成物の製造方法。
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Also Published As
Publication number | Publication date |
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JPWO2017170201A1 (ja) | 2019-02-07 |
US10980715B2 (en) | 2021-04-20 |
KR20180126020A (ko) | 2018-11-26 |
EP3437631B1 (en) | 2022-01-19 |
KR102343732B1 (ko) | 2021-12-27 |
CN108883052A (zh) | 2018-11-23 |
EP3437631A4 (en) | 2019-10-09 |
EP3437631A1 (en) | 2019-02-06 |
JP6981963B2 (ja) | 2021-12-17 |
US20200129387A1 (en) | 2020-04-30 |
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