KR20100133452A - Hair cosmetic composition - Google Patents

Abstract

A hair cosmetic containing the following (A) acrylic acid polymer and (B) nonionic polymer, and the mass ratio represented by (A) / (B) is 0.1-10.0. (A) Acrylic acid type polymer containing 70-95 mol% of monomeric units represented by following General formula (1), and 5-30 mol% of monomeric units represented by following General formula (2) as a structural unit (In formula, R ¹ represents a hydrogen atom or a methyl group, R ² represents a hydrogen atom or a —CH ₂ OH group, A represents an oxygen atom or —NH—, R ³ represents a hydrogen atom or a methyl group, M represents a hydrogen atom, an alkali metal atom, ammonium or Represents an amine)

Description

Hair cosmetics {HAIR COSMETIC COMPOSITION}

The present invention relates to a hair cosmetic that gives volume and shine to the top of the head.

Conditioner ingredients (oil, etc.) are used by those who have the desire to add firmness and elasticity to the hair and want to give volume to the head. There is a problem that the adhesiveness is formed, the heads of the heads are crushed, the stickiness is reduced, and the volume is lowered. On the other hand, a technique is proposed in which the conditioner component is changed from a general oil to a high-molecular compound or a solid fat, which has a low adhesion, to suppress stickiness, to impart tension, and to provide tension (Patent Document 1: Japanese Patent Laid-Open No. 2000-). 204024, Patent Document 2: Japanese Patent Application Laid-Open No. 10-95714, and Patent Document 3: Japanese Patent Application Laid-Open No. 2006-199648. However, due to the film formation after drying, phenomena such as stiffness, smoothness and gloss decrease, and so on, it was not possible to reach the level that satisfies the volume, gloss and smoothness simultaneously.

Patent Document 1: Japanese Patent Application Laid-Open No. 2000-204024

Patent Document 2: Japanese Patent Application Laid-Open No. 10-95714

Patent Document 3: Japanese Patent Application Laid-Open No. 2006-199648

Patent Document 4: Japanese Patent Application Laid-Open No. 2007-137830

Patent Document 5: Japanese Patent Application Laid-Open No. 2007-161986

This invention is made | formed in view of the said situation, and an object of this invention is to provide the hair cosmetic which gives glossiness to a hair volume and hair.

MEANS TO SOLVE THE PROBLEM As a result of earnestly examining in order to achieve the said objective, the present inventors used together the specific (A) acrylic acid type polymer and (B) nonionic polymer, and made the mass ratio represented by (A) / (B) 0.1-10. By (A) component and (B) component, it acts together and forms a flexible and shiny film on hair, gives elastic tightness and firmness without stiffness, raises the volume of head and hair, It can be seen that it can give a shine. In addition, by blending a cationic surfactant as the component (C) in the hair cosmetic, it is possible to achieve the present invention by studying that the hair can be smoothed.

Thus, the present invention provides the following invention.

[One]. A hair cosmetic containing the following (A) acrylic acid polymer and (B) nonionic polymer, and the mass ratio represented by (A) / (B) is 0.1-10.0.

(A) Acrylic acid polymer containing 70-95 mol% of monomer units represented by following General formula (1), and 5-30 mol% of monomeric units represented by following General formula (2) as a structural unit.

[Formula 1]

(Wherein R ¹ represents a hydrogen atom or a methyl group, R ² represents a hydrogen atom or a —CH ₂ OH group, and A represents an oxygen atom or —NH—)

[Formula 2]

(Wherein R ³ represents a hydrogen atom or a methyl group, M represents a hydrogen atom, an alkali metal atom, ammonium or an amine)

[2]. (B) The hair cosmetic according to [1], wherein the component is a vinylpyrrolidone polymer or a cellulose polymer.

[3]. Furthermore, the hair cosmetic according to [1] or [2], which contains (C) a cationic surfactant. Moreover, the subject of said [3] is providing the hair cosmetic which improves smoothness to hair.

According to the present invention, it is possible to provide a hair cosmetic that provides a sense of volume of two heads and at the same time improves hair smoothness and gloss.

According to the present invention, it is possible to provide a hair cosmetic that provides volume and glossiness of two heads. Moreover, the hair cosmetic which gives a smoothness to hair can be provided by mix | blending (C) component.

(A) acrylic acid polymer

It is an acrylic acid polymer which consists of a copolymer containing 70-95 mol% of monomer units represented by following General formula (1), and 5-30 mol% of monomeric units represented by following General formula (2) as a structural unit, It can be used individually by 1 type or in combination of 2 or more types.

(3)

(Wherein R ¹ represents a hydrogen atom or a methyl group, R ² represents a hydrogen atom or a —CH ₂ OH group, and A represents an oxygen atom or —NH—)

[Formula 4]

(Wherein R ³ represents a hydrogen atom or a methyl group, M represents a hydrogen atom, an alkali metal atom, ammonium or an amine)

Examples of the alkali metal atoms include sodium atoms, potassium atoms, and amines, such as monoethanolamine, diethanolamine, and triethanolamine. Further, when M is an alkali metal atom, ammonium or amine, -COOM forms a salt. do.

As a monomer unit represented by General formula (1), it is preferable that R <^1> is a hydrogen atom, R <^2> is a hydrogen atom, and A is -NH-, and as a monomer unit represented by following General formula (2), R <^3> is It is preferable that a hydrogen atom and M are a hydrogen atom or a sodium atom.

The ratio of the monomeric unit represented by General formula (1) is 70-95 mol% in acrylic acid type polymer (in 100 mol% of all monomeric units), 75-90 mol% is preferable, and is represented by General formula (2) The ratio of the monomer unit to be used is 5-30 mol% (in 100 mol% of all monomer units) in an acrylic acid type polymer, and 10-25 mol% is preferable. When the ratio of the monomeric unit represented by General formula (1) exceeds 95 mol%, finger combing will worsen, smoothness will fall, and the ratio of the monomeric unit represented by General formula (2) will be 5 mol%. Below, stiffness occurs.

The acrylic acid polymer may contain monomer units other than the monomer units represented by the general formula (1) or (2) as long as the effects of the present invention are not impaired. As another monomer unit, it corresponds to nonionic monomer, amphoteric monomer, semipolar monomer, cationic monomer, polysiloxane group containing monomer other than the monomer unit represented by General formula (1) or (2), for example. The monomer unit mentioned can be mentioned. As for the ratio of monomer units other than the monomer unit represented by General formula (1) or (2), 0-25 mol% is preferable in an acrylic acid polymer. The acrylic acid polymer of the present invention may be a random copolymer or a block copolymer. As the acrylic acid polymer of the present invention, an acrylic made of a copolymer having monomer units represented by the general formulas (1) and (2) as a structural unit Acid based polymers are preferred.

As a nonionic monomer, For example, ester of a C1-C22 alcohol and (meth) acrylic acid, Amide of a C1-C22 alkylamine and (meth) acrylic acid, Ethylene glycol, 1, 3- propylene glycol Monoester with (meth) acrylic acid and the like, furthermore, ester in which the hydroxyl group of this monoester is etherified with methanol, ethanol or the like, (meth) acroyl morpholine, and the like. A containing (meth) acrylic ester, a betaine group containing (meth) acrylamide, etc. are mentioned, As a semipolar monomer, an amine oxide group containing (meth) acrylic ester and an amine oxide group containing (meth) acryl Amide etc. are mentioned, As a cationic monomer, a quaternary ammonium group containing (meth) acrylic ester, a quaternary ammonium group containing (meth) acrylamide, etc. are mentioned, for example. All.

The polysiloxane group-containing monomer is a compound which has a polysiloxane structure and has a structure which can be covalently linked to an acrylic polymer. Such structural units have high affinity with silicone oils commonly used in cosmetic compositions, and function to bind silicone oils with other structural units in acrylic acid polymers, and to treat skin, hair, especially damage hair, and the like. It is thought that there is an action to increase the adsorption power of silicone oil.

In addition, the ratio of each monomeric unit in an acrylic-type polymer is IR absorption of a carbonyl group, an amide bond, a polysiloxane structure, various functional groups, etc. It can measure by <^1> H-NMR, those ^13C -NMR, etc.

The weight average molecular weight of an acrylic acid polymer is 3,000-100,000 normally. If it is less than 3,000, the volume of the head may be inferior, and if it exceeds 100,000, there may be a stiffness of hair or skin. From the point which raises the volume feeling and glossiness of a head part, it is preferable to set a weight average molecular weight to 10,000-30,000, 10,000-10,000 are more preferable, and 12,000-17,000 are still more preferable.

The weight average molecular weight can be measured by gel permeation chromatography, and specifically, a device: SC8010, SD8022, RI8020, CO8011, PS8010, manufactured by Isoso Co., Ltd., Wakopak (Wakobeads G-50), Developing solvent: water / methanol / acetic acid / sodium acetate = 6/4 / 0.3 / 0.41), and polyethylene glycol can be obtained as a standard substance.

Adjustment of the molecular weight of an acrylic acid polymer can be performed by controlling the polymerization degree of a polymer, for example. Moreover, molecular weight and viscosity can also be controlled by increasing or decreasing the addition amount of crosslinking agents, such as polyfunctional acrylate. However, when a crosslinking agent is added even a little too much, molecular weight and a viscosity may increase rapidly, and there exist some aspects which are difficult to control industrially. For this reason, it is preferable that a crosslinking agent is not included.

An acrylic acid polymer can be obtained based on the method of Unexamined-Japanese-Patent No. 2007-137830. For example, it can obtain by mixing the monomer which gives each structural unit or its precursor, and copolymerizing by methods, such as solution polymerization, suspension polymerization, and emulsion polymerization. In addition, the counter ion in General formula (2) may be provided to superposition | polymerization instead of a hydrogen ion in part or all by the neutralization reaction before superposition | polymerization, and after superposition | polymerization or other reaction, It is also possible to replace some or all of them with other than hydrogen ions. These can be selected and performed appropriately by the ease of the synthesis. It is preferable to perform a polymerization reaction in hydrophilic solvents, such as ethanol, and well-known polymerization initiators, such as dimethyl 2,2'- azobis (2-methylpropionate), can be used as a polymerization initiator. In addition, each monomer is mix | blended so that each monomer may become specific mol with respect to the total amount (100 mol%) of all the monomers. The ratio of the structural unit which consists of each monomer in the copolymer of this invention is the same as the compounding quantity of each monomer at the time of copolymerization.

It is preferable to perform a polymerization reaction in a hydrophilic solvent. Examples of the hydrophilic solvent include ketone solvents such as acetone, methyl ethyl ketone and methyl isobutyl ketone, alcohol solvents such as methanol, ethanol, n-propanol, i-propanol, n-butanol, i-butanol and sec-butanol, and water. Etc. can be mentioned. These may be used independently or may use 2 or more types together. Among them, it is preferable to use an alcohol solvent.

Examples of the polymerization initiator include 2,2'-azobisisobutyronitrile, 2,2'-azobis (2,4-dimethylvaleronitrile) and 2,2'-azobis (4-methoxy-2,4 -Dimethylvaleronitrile), dimethyl-2,2'-azobisisobutylate, 2,2'-azobis (2-methylbutyronitrile), 1,1'-azobis (1-cyclohexanecarbonitrile ), 2,2'-azobis (2-methyl-N- (2-hydroxyethyl) -propionamide), 2,2'-azobis (2-amidinopropane) dihydrochloride, dimethyl2,2 ' Azo compounds such as azobis (2-methylpropionate), peroxides such as benzoyl peroxide, dicumyl peroxide, di-t-butyl peroxide, lauroyl peroxide, persulfate, or redox system Etc. can be used without particular limitation. It is preferable to use a polymerization initiator in 0.01-5 mass% with respect to all monomers.

For example, the polymerization reaction can be carried out in an inert gas atmosphere such as nitrogen or argon, preferably at 30 to 120 ° C, more preferably at 40 to 100 ° C for 1 to 30 hours. After completion of the polymerization, the produced copolymer may be isolated from the reaction solution by any suitable means such as solvent removal and addition of a poor solvent. This copolymer can be used as it is or by refining, for example, in the manufacture of cosmetics. Purification can be performed by combining appropriate means, such as reprecipitation, solvent washing, membrane separation, etc. as needed.

(A) 0.05-2.0 mass% is preferable in a hair cosmetic, and, as for the compounding quantity of an acrylic acid type polymer, 0.1-1.0 mass% is more preferable. If the blending amount is less than 0.05% by mass, the effect of the present invention may be insufficient. If the blending amount exceeds 2.0% by mass, stickiness may occur and the volume may be lowered.

(B) nonionic polymer

As a nonionic polymer, the polymer which does not have ionic property, such as the homopolymer which superpolymerized the nonionic monomer shown below, the copolymer (copolymer) which copolymerized plural types, and the water-soluble polysaccharide (cellulose type, gum type, starch type etc.) These can be mentioned and can be used individually by 1 type or in combination of 2 or more types.

As a nonionic monomer, the hydrogen atom of vinylpyrrolidone, a vinyl acetate, ester of (meth) acrylic acid and a C1-C22 alcohol, polyhydric alcohol, or a hydroxy group containing alkyl group, (meth) acrylamide, and these amines is a carbon atom Amides substituted by alkyl groups having 1 to 22 alkyl or alkyl containing hydroxy groups, dialkyl (1 to 22 carbon atoms) aminoethyl (meth) acrylate, vinylimidazole, vinyl caprolactam, polyalkylene (2 to 3 carbon atoms) glycol Etc. can be mentioned. In addition, in this invention, (meth) acrylic acid represents acrylic acid and / or methacrylic acid.

As a nonionic polymer, a vinylpyrrolidone type polymer and a cellulose polymer are preferable. In the present invention, the vinylpyrrolidone polymer refers to polyvinylpyrrolidone, which is a homopolymer of vinylpyrrolidone, or a copolymer (copolymer) of vinylpyrrolidone and another nonionic monomer.

As polyvinylpyrrolidone, the thing of K value 10-100 is preferable, Specifically, it is a product made from ruby collol K17, 30, 90 / BASF, polyvinylpyrrolidone K-30, 85, 90, 30W, 85W / Nippon catalyst Etc. can be mentioned. When K value is less than 10, there exists a possibility that an effect may become inadequate, and when it exceeds 100, handling property may worsen.

K value is a viscosity characteristic value correlated with molecular weight, and it is calculated by applying the relative viscosity value (25 degreeC) measured by the capillary viscometer to the following formula of Fikentscher.

K = (1.5logη _rel -1) / (0.15 + 0.003c) + (300clogη _rel + (c + 1.5clogη _rel ) ² ) ^1/2 /(0.15c+0.003c ² )

η _rel : Relative Viscosity of Water in Polyvinylpyrrolidone Aqueous Solution

c: Polyvinylpyrrolidone concentration in polyvinylpyrrolidone aqueous solution

As a copolymer (copolymer) of vinylpyrrolidone and another nonionic monomer, vinylpyrrolidone / vinyl acetate copolymer (specifically, PVP / VA W-735, S-630, E-535 / ISP product) , Rubiscol VA55I, VA73E / BASF), vinylpyrrolidone / dimethylaminoethyl methacrylate copolymer (copolymer 845, 937, 958 / ISP product), N-vinylpyrrolidone / methacrylamide, N- Vinylimidazole copolymers (manufactured by Ruby Set Clear BASF) and the like, and particularly preferred among them are vinylpyrrolidone / vinyl acetate copolymers and vinylpyrrolidone VP (mol) / vinyl acetate VA (mol) The molar ratio represented by is preferably in the range of VP (mol) / VA (mol) = 50/50 to 99/1, and more preferably in the range of 60/40 to 99/1. This ratio is a range in which a copolymer becomes completely water-soluble (1 g of this product is added to 1000 ml of water, and it melt | dissolves completely when left to stand for 30 minutes after infiltration (measurement temperature 25 degreeC), and conforms to the Japanese solubility test method. ). Moreover, 60/40-80/20 are preferable at the point of the effect which is taut and firm. Specific examples falling within this range include PVP / VA W-735, S-630 / ISP, and Ruby Call VA73E / BASF. The molar ratio of vinylpyrrolidone (VP) and vinyl acetate (VA) can be calculated | required, for example by dissolving a copolymer in deuterium and measuring ¹ H-NMR.

Examples of the cellulose polymers include hydroxyethyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, and the like. When it is difficult to prepare the thing of 1,000-50,000 mPa * s and the 2 mass% uniform dissolution, the viscosity of a 2 mass% aqueous solution is made into 1 mass% aqueous solution, and the viscosity of this 1 mass% aqueous solution is 100-6,000 mPa * s. Is preferable. As satisfy | filling the said conditions, specifically, hydroxyethyl cellulose (made by Sumitomo Seika HEC SY-25F, SW-25F, SZ-25Y / Sumitomo Seika), (Cellosize QP-4400, QP-15000, QP-52000 / Dow Chemical Co., Ltd.), hydroxypropyl methyl cellulose (Methorose 60SH-4000, 65SH-15000, 90SH-30000 / Shin Wol Chemical Co., Ltd.), hydroxyethyl methyl cellulose (Methorose SEB-15000, SNB-30000 / Shinwol Chemical Industrial Co., Ltd.) etc. are mentioned. When the viscosity of 2 mass% aqueous solution is less than 1,000 mPa * s or the viscosity of 1 mass% aqueous solution is less than 100 mPa * s, there exists a possibility that the effect of this invention may become inadequate, and the viscosity of 2 mass% aqueous solution is 50,000 mPa * s or 1 When mass% aqueous solution viscosity exceeds 6,000 mPa * s, there exists a possibility that stiffness may arise. In addition, the said viscosity is the value measured on 25 degreeC conditions after a BM type viscometer, a No.3 rotor, or a No.4 rotor, 30, 12, or 6 rpm, 60 second.

Although the weight average molecular weight of a nonionic polymer is not specifically limited, 10,000-1,000,000 are preferable and 10,000-500,000 are more preferable. In addition, a weight average molecular weight can be calculated | required by the light scattering method.

0.05-2.0 mass% is preferable in a hair cosmetic, and, as for the compounding quantity of a nonionic polymer, 0.1-1.0 mass% is more preferable. If the blending amount is less than 0.05% by mass, the volume up effect may be insufficient. If the blending amount is more than 2.0% by mass, there is a fear that stiffness may occur.

The mass ratio of (A) component and (B) component represented by (A) / (B) is 0.1-10.0, 0.5-7.0 are preferable and 0.8-4.0 are more preferable. By setting the mass ratio of the component (A) and the component (B) to 0.1 to 10.0, it is possible to impart a sense of volume and hair gloss. If it is less than 0.1, the effect is insufficient, and if it exceeds 10.0, the volume and gloss may be worsened.

(C) cationic surfactant

Examples of cationic surfactants include amino acid cationic surfactants such as aliphatic amines and quaternary ammonium salts, fatty acid amideamine salts, alkyltrialkylene glycolammonium salts, acylguanidine derivatives, and mono-N-long-chain acyl basic amino acid lower alkyl ester salts. , An alkylbenzalkonium salt, an alkylpyridinium salt, an imidazolinium salt, etc. can be mentioned, It can be used individually by 1 type or in combination of 2 or more types. Among them, quaternary ammonium salts of aliphatic amines are preferred, and quaternary ammonium salts having 18 to 22 carbon atoms are more preferred. Specifically, behenyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, etc. are mentioned.

0.1-5.0 mass% is preferable in hair cosmetics, and, as for the compounding quantity of (C) component, 0.2-2.0 mass% is more preferable at the point which improves the hair smoothness. If the amount is less than 0.1% by mass, the conditioning effect may be insufficient. If the amount is more than 5.0% by mass, the stability of the formulation may be adversely affected.

In the hair cosmetic of the present invention, various additives commonly used in general hair cosmetics can be blended within a range that does not impair the effects of the present invention. These can be used individually by 1 type or in combination of 2 or more types. Examples of the additive component include silicones such as dimethyl polysiloxane and amino-modified silicone, anionic surfactants such as alkyl sulfate ester salts and sodium polyoxy ethylene alkyl ether sulfate, palm oil fatty acid amide propyl betaine, and lauryl dimethyl amino acetic acid. Amphoteric surfactants such as betaine, hydrogenated soybean phospholipid, alkyldiaminoethylglycine hydrochloride, sodium laurylaminopropionate, sucrose fatty acid ester, sorbitan fatty acid ester, sorbitol fatty acid ester, glycerin Nonionic surfactants such as fatty acid esters, polyglycerol fatty acid esters, polyoxyethylene hardened castor oil, polyoxyethylene alkyl ethers, olive squalane, rice germ oil, rice bran oil, camellia oil, marmondo oil, hydrogenated jojoba oil, etc. Fats and oils, myristic acid, parmitic acid, stearic acid, behenic acid , Oleic acid, pantothenic acid, malic acid-3,5-diglucoside, malic acid-3,4-diglucoside, malic acid methyl-3,5-diglucoside, edetic acid, hyaluronic acid, amino acid, pyrrolidonecarboxylic acid, etc. Organic acids and salts thereof, ethylene glycol, propylene glycol, butylene glycol, glycerin and copolymers thereof, polyhydric alcohols such as sorbet, glucose, sucrose, pullulan, hydrocarbons, ester oils, stearyl alcohol, etc. Higher alcohols, herbal medicines, various protein hydrolysates, vitamins, fungicides, ultraviolet absorbers, antioxidants, colorants, pH buffers, pharmaceuticals, solvents (water, ethanol and the like), fine powders, and the like. These additive components can be used individually by 1 type or in combination of 2 or more types, and can also be mix | blended in the suitable step at the time of preparing a hair cosmetic.

As for pH of the hair cosmetic of this invention, 3-6 are preferable. This pH is close to the pH of the hair and is difficult to damage the hair. As a pH adjuster, inorganic acids, such as sodium pyrophosphate, organic acids, such as glycolic acid and a citric acid, are mentioned. In the present invention, the pH is measured at a measurement temperature of 25 ° C. with a pH meter of Dong-A Dikeke Co., Ltd. HM-30G.

1,000-20,000 mPa * s is preferable and, as for the viscosity (25 degreeC) of the hair cosmetic of this invention, 3,000-10,000 mPa * s is more preferable. By setting it as this range, it does not flow easily in use and it is easy to spread. In this invention, the measurement (25 degreeC) of a viscosity is performed on condition of No.4 rotor 30 rpm 20 second using the BM type viscometer by TOKIMEC.

Hair cosmetics of the present invention can be widely used in most formulations, for example, liquid, cream, foam, spray, gel, etc., conditioner, treatment, hair color, non-washing treatment Suitable for hair shampoo, hair pack, etc. The hair cosmetic of this invention can be prepared based on the routine method of formulation, and can be filled to a container suitably.

Example

Hereinafter, although an Example and a comparative example are shown and this invention is demonstrated concretely, this invention is not limited to the following Example. In addition, in the following example, when there is no specific description, "%" of a composition shows the mass%, a ratio shows the mass ratio, and the quantity of each component in a table | surface is the quantity converted in pure parts.

Preparation Example 1

A-1

100 parts by mass of ethanol was placed in a reactor equipped with a reflux condenser, a dropping funnel, a thermometer, a nitrogen gas introduction tube, and a stirring device, and 88.6 parts by mass of 2-hydroxyethylacrylamide, 11.4 parts by mass of acrylic acid and ethanol were added to the dropping rod. The monomer liquid mixture which consists of 80 mass parts was put, and after nitrogen-substituting the reactor, it heated to 80 degreeC. 1 mass part of dimethyl 2,2'- azobis (2-methyl propionate) (V-601; Wako Pure Chemical Industries, Ltd. product) were thrown into the reactor, and the monomer liquid mixture was dripped over 2 hours. After completion | finish of dripping, after making it react for 6 hours, it cooled, it neutralized with sodium hydroxide, and obtained polymer A-1.

Preparation Example 2

A-2

100 parts by mass of ethanol was placed in a reactor equipped with a reflux condenser, a dropping rod, a thermometer, a nitrogen gas introduction tube, and a stirring device, 82.5 parts by mass of 2,3-dihydroxypropylacrylamide, 17.5 parts by mass of acrylic acid, and ethanol 80 in a dropping rod. The monomer liquid mixture which consists of a mass part was put, and the reactor was nitrogen-substituted and heated to 80 degreeC. 1 mass part of dimethyl 2,2'- azobis (2-methyl propionate) (V-601; Wako Pure Chemical Industries, Ltd. product) were thrown into the reactor, and the monomer liquid mixture was dripped over 2 hours. After completion | finish of dripping, after making it react for 6 hours, it cooled, it neutralized by adding sodium hydroxide corresponded to half the molar ratio of acrylic acid, and obtained polymer A-2.

Preparation Example 3

A-3

100 parts by mass of ethanol was placed in a reactor equipped with a reflux condenser, a dropping rod, a thermometer, a nitrogen gas inlet tube, and a stirring device, 97.5 parts by mass of 2,3-dihydroxypropylacrylamide, 2.5 parts by mass of acrylic acid, and ethanol 80 in a dropping rod. The monomer liquid mixture which consists of a mass part was put, and the reactor was nitrogen-substituted and heated to 80 degreeC. 1 mass part of dimethyl 2,2'- azobis (2-methyl propionate) (V-601; Wako Pure Chemical Industries, Ltd. product) were thrown into the reactor, and the monomer liquid mixture was dripped over 2 hours. After completion | finish of dripping, after making it react for 6 hours, it cooled, it neutralized by adding sodium hydroxide corresponding to half of the molar ratio of acrylic acid, and obtained polymer A-3.

Preparation Example 4

A-4

Polymer A-4 was obtained by the method similar to the said preparation example 1 except having adjusted the compounding quantity so that it might become a structural unit of the following Table 1.

Preparation Example 5

A-5

Polymer A-5 was obtained by the method similar to the said preparation example 1 except having adjusted the compounding quantity so that it might become a structural unit of the following Table 1.

Preparation Example 6

A'-6

Polymer A'-6 was obtained by the method similar to the said preparation example 1 except having adjusted the compounding quantity so that it might become a structural unit of the following Table 1.

Table 1 shows the functional groups of the general formulas (1) or (2) of the polymers A-1 to A'-6, the ratio (molar ratio) of the monomer units of the general formula (1) or (2), and the weight average molecular weight. In addition, the weight average molecular weight was apparatus: SC8010, SD8022, RI8020, CO8011, PS8010, column: Wakopak Co., Ltd. Wakopak (Wakobeads G-50), development solvent: water / methanol / acetic acid / sodium acetate = 6 /4/0.3/0.41) to obtain polyethylene glycol as a standard material.

TABLE 1

What was used as (B) component is shown below.

TABLE 2

[Examples 1 to 21, Comparative Examples 1 to 5]

The non-washable hair conditioner of the composition shown to Tables 3-6 was prepared by the following method. The following evaluation was performed about the obtained hair conditioner. Record the results in the table.

[Method of Preparation]

The (A) acrylic acid polymer and the (B) nonionic polymer were previously made into an aqueous solution small product, and all other components were mixed and dissolved at room temperature. To this, the above-mentioned small product and an amino modified silicone emulsion were added, and it stirred until it became uniform.

[Evaluation (volume, shine, and hair smoothness of hair of both governments)]

Thirty 40 to 60 year old women who are troubled with tension and lack of firmness and no volume of head and head use the conditioner composition of the type that is not washable for seven days (shampoo and conditioner to wash off are usually Article), "volume feeling of the hair of the head part" and "glossiness" were evaluated. About the composition of Examples 16-21 which mix | blended the component (C) cationic surfactant, it evaluated also about "hair smoothness" in addition to "the volume sense of the hair of the head part" "gloss". The number of people who answered good is based on the following evaluation criteria.

<Evaluation Criteria>

◎; More than 25 people out of 30 answered good

○; 15 to 24 of 30 answered good

△; 5 to 14 of 30 answered good

×; Less than 5 people answered good

[Table 3]

[Table 4]

TABLE 5

TABLE 6

[Examples 22 to 43 and Comparative Examples 6 to 10]

The hair conditioner of the washing type of the composition shown to Tables 7-10 was prepared by the following method. The following evaluation was performed about the obtained hair conditioner. Record the results in the table.

[Method of Preparation]

In an 80 ° C. hot water bath, (A) acrylic acid polymer, polyoxyethylene (40) cured castor oil, (C) cationic surfactant, and stearyl alcohol are mixed and dissolved, and sorbet and purified water are added to form phase emulsification.乳化). It cooled to 50 degreeC, stirring, and after adding (B) a nonionic polymer and an amino modified silicone emulsion, it cooled to room temperature again while stirring.

[Evaluation (volume, shine, and hair smoothness of hair of both governments)]

Thirty 40-60 year old women who feel that they are taut and have no firmness and no volume of head and head use the conditioner composition of the type to wash for seven days (Shampoo is made by Lion Co., Ltd. Herb blends were used with a fresh, bold, shavo-slan type), and the "volume feeling of hair of the two heads" and "glossiness" were evaluated. About the composition which mix | blended the component (C) cationic surfactant of Examples 38-43, in addition to "the volume sense of the hair of the head part" "gloss", the "hair smoothness" was also evaluated. The number of people who answered good is based on the following evaluation criteria.

<Evaluation Criteria>

◎; More than 25 people out of 30 answered good

○; 15 to 24 of 30 answered good

△; 5 to 14 of 30 answered good

×; Less than 5 people answered good

TABLE 7

[Table 8]

TABLE 9

TABLE 10

TABLE 11

Example 44

Hair conditioner

The hair conditioner of the following composition was prepared and it filled into the pump container made from PE (polyetherene). In addition, pH was adjusted to 3.5 and viscosity (25 degreeC) was adjusted to 8 Pa * s.

Furtherance %

(A-1) 0.5

(B-2) 0.3

(C) behenyltrimethylammonium chloride 1.5

Stearyl Alcohol 4.8

1,3-butylene glycol 3.0

Olive Squalane 0.3

Amino Modified Silicone Emulsion 0.8

Dimethyl Silicone 1.5

Glycolic acid

Fragrance Composition A 0.5

Purified water Remainder

Total 100.0

(A) / (B) = 1.7

Evaluation results

『Volume sense of hair of two governments』: ◎

「Glossy」: ◎

「Smoothness of Hair」: ◎

TABLE 12

Example 45

Hair essence

The hair cosmetic liquid of the following composition was prepared, and it filled into the container made from PET (polyethylene terephthalate). In addition, pH was adjusted to 4.4 and viscosity was adjusted to 0.5 Pa.s.

Furtherance %

(A-2) 0.3

(B-6) 0.4

Amino Modified Silicone Emulsion 2.0

Silicone Emulsion 1.0

Polyethylene (24) Polypropylene (24) Glyceryl ether 3.0

(C) Behenyltrimethylammonium chloride 1.0

Polyoxyethylene (30) Phytosterol 0.5

Polyoxyethylene (40) hydrogenated castor oil 0.2

Ethanol 20.0

Sodium pyrophosphate

Glycolic acid

Fragrance Composition B 0.1

Purified water Remainder

Total 100.0

(A) / (B) = 0.75

Evaluation results

『Volume sense of hair of two governments』: ◎

「Glossy」: ○

「Smoothness of Hair」: ◎

TABLE 13

Example 46

Hair pack

A hair pack having the following composition was prepared and filled into a jar (type) container made of PE (polyethylene). In addition, pH was adjusted to 3.5 and the viscosity was adjusted to 25 Pa.s.

Furtherance %

(A-4) 0.5

(B-2) 0.2

(B-4) 0.3

(C) behenyltrimethylammonium chloride 1.8

Behenyl Alcohol 3.5

Stearyl Alcohol 2.5

Sorbit 9.0

Citric acid

Fragrance Composition C 0.7

Purified water Remainder

Total 100.0

(A) / (B) = 1.0

Evaluation results

"Volume feeling of hair of head government" ○

`` Glossy '' ◎

`` Smoothness of hair '' ◎

The raw material used when preparing the Example and the comparative example is shown below.

[Table 14]

The pharmaceutical compositions A, B, and C used in each of the above examples are based on the pharmaceutical compositions A to C described in JP-A-2003-95895.

Claims (3)

A hair cosmetic containing the following (A) acrylic acid polymer and (B) nonionic polymer, and the mass ratio represented by (A) / (B) is 0.1-10.0.
(A) Acrylic acid type polymer containing 70-95 mol% of monomeric units represented by following General formula (1), and 5-30 mol% of monomeric units represented by following General formula (2) as a structural unit.
[Formula 1]

(Wherein R ¹ represents a hydrogen atom or a methyl group, R ² represents a hydrogen atom or a —CH ₂ OH group, and A represents an oxygen atom or —NH—)
(2)

(Wherein R ³ represents a hydrogen atom or a methyl group, M represents a hydrogen atom, an alkali metal atom, ammonium or an amine) The method of claim 1,
(B) A component is a vinyl pyrrolidone type polymer or a cellulose polymer, The hair cosmetics characterized by the above-mentioned. 3. The method according to claim 1 or 2,
Moreover, (C) cationic surfactant is contained, The hair cosmetics characterized by the above-mentioned.