KR100860285B1 - Biphasic polymer latex characterized as formation of nanostructured polymer film and the process for preparing thereof, and the hair cosmetic composition containing the latex - Google Patents

Abstract

The present invention relates to a biphase structured polymer nano latex, a method for producing the same, and a hair cosmetic containing the latex, characterized in that the hair is coated on the hair to give a desired styling effect and maintain a moisturizing effect. More specifically, the present invention relates to a biphase polymer latex having a flexible chain for imparting moisturizing to enclose a rigid nucleus having a crosslinked structure and containing a cationic group on the surface to enhance adsorptive force to the hair. 'S latex shows a nano structure that retains the structure of the solid nucleus even when adsorbed onto the hair to form a film, and gives a styling effect to the hair coated by the flexible chain around the nucleus with excellent moisturizing power, while also providing continuous moisturizing effect. do.

Hair Styling * Polymer Nano Latex * Moisturizing * Hair Cosmetic Composition

Description

Biphasic polymer latex characterized as formation of nanostructured polymer film and the process for preparing etc, and the hair cosmetic composition containing the latex}

1 is a transmission electron micrograph of the polymer latex prepared in Example 1 of the present invention.

2 is a scanning electron micrograph of normal hair.

3 is a scanning electron micrograph observed after adsorbing the polymer latex prepared in Comparative Example 1 of the present invention to the hair.

4 is a scanning electron micrograph observed after adsorbing the polymer latex prepared in Example 1 of the present invention to the hair.

The present invention relates to a polymer latex having a cationic biphase structure that can simultaneously impart a styling effect and a moisturizing effect to the hair, a method for preparing the same, and a hair cosmetic composition containing the latex. More specifically, when a biphase latex having a flexible chain for imparting a moisturizing force surrounds a rigid nucleus and has a cation group on its surface to promote adsorption to the hair, the latex structure is adsorbed onto the hair to form a polymer latex membrane. In other words, the structure of the solid nucleus remains nano-spherical and the flexible chain around the nucleus forms a dispersed phase. Unlike the general polymer latex, the polymer latex having the abnormal structure has the advantage that the inherent physical properties of each polymer phase are expressed in the coating film as it is, and the moisturizing power of the dispersed phase of the flexible chain effectively moisturizes the hair. It can be given.

In recent years, as the interest and desire for beauty become stronger, the importance of hair is increasing. Therefore, researches for making hair styles of desired shapes are steadily being made. Gel, mousse, spray, etc. have been developed and widely used as hair cosmetics that can easily make hair into a desired shape and maintain it for a certain period of time. Currently, this styling function is applied to shampoos more easily and at the same time cleaning and styling effects Products that can give you are introduced. As a method for imparting styling effects to hair, a method of using styling polymers dissolved in water or an organic solvent has been studied. However, in order to express the styling effects of these polymers, they need to be introduced in excess, and are relatively more effective than hair. Due to the high surface tension and non-uniform hair adsorption, there is a problem in that it is difficult to comb or harden after adsorption. In addition, most styling polymers do not dissolve in water, so an organic solvent should be used, and these organic solvents have a problem in that formulation is difficult due to low compatibility with the hair cosmetic composition. In order to solve this problem, research using latex having polymer particles dispersed in an aqueous solution has been of much interest in recent years. Specifically, in US Patents 4798721 and 4985239 for the first time the hair cosmetic composition using a polymer latex having a glass transition temperature of 27 ℃ or more was introduced. However, in order to adsorb the polymer latex to the hair, there is a disadvantage of using an auxiliary cationic polymer or using an excess of latex particles. Accordingly, US Patent 6248315 proposes a shampoo composition to which cationic polymers and fat-soluble oils are added in order to enhance adsorption of polymer latex to hair, and US Patent 6268431 discloses that polymer latex is relatively to give styling effect to hair. It is suggested that it is more effective when the polymer particles having the glass transition temperature between about -20 ° C and 10 ° C are used rather than the polymer having the high glass transition temperature. In addition, the Republic of Korea Patent Publication No. 2000-0064630 suggests that when used by mixing the film-forming polymer particles and the general polymer particles, showing an effective hair coating and excellent styling effect.

However, these conventional methods preferentially consider the formation of a uniform hair coating film of a single component of the polymer latex, and in the actual hair cosmetic composition that must simultaneously pursue different physical properties such as viscosity and elasticity, the physical offset of the uniform polymer film is offset. It is difficult to fundamentally improve the effect. Therefore, as the material itself, it is necessary to develop a new polymer latex system that can be expressed as it is on the surface of the hair.

 In the present invention, a polymer latex having a biphase structure is prepared, and when the latex is adsorbed to the hair, the hair cosmetic composition is added to give the physical properties of the respective polymer phases to the hair as it is, thereby giving the hair a styling effect and a moisturizing effect. I would like to.

Accordingly, the present inventors have studied a method of imparting moisturizing power not to dry the hair while at the same time expressing the diversity of the physical properties of the polymer in the hair, as a result, biphase structure having two different phases at the same time Polymer latex was found to be very effective for this.

The biphase polymer latex proposed by the present invention has a structure in which a rigid hydrophobic polymer phase as an inner nuclear part and an excessively flexible chain for imparting moisturizing power to the outer shell are introduced. In addition, a cationic group may be introduced into the polymer latex to further improve the adsorption power to the hair in the formulation.

Accordingly, it is an object of the present invention to provide a latex that can impart a styling effect and a moisturizing effect to hair.

Still another object of the present invention is to provide a method for preparing a latex that can impart a styling effect and a moisturizing effect to hair.

Ultimately, an object of the present invention is to provide a hair cosmetic composition that can simultaneously provide a styling effect and a moisturizing effect using the polymer latex.

The present invention relates to a polymer latex and a method for producing the same, characterized in that it is coated on the hair to give a desired styling effect and maintain a moisturizing effect. The latex consists of a rigid nucleus, a flexible chain around the nucleus. In addition, the latex may further include a cationic group.

The latex of the present invention has a biphase structure in which a flexible chain for imparting moisturizing power surrounds a rigid nucleus having a crosslinked structure, and further introduces a cationic group to the surface to promote adsorption of particles to the hair. The latex shows a nanostructure in which the structure of the rigid nucleus remains intact even after being adsorbed onto the hair to form a film, and the flexible chain gives a continuous moisturizing effect to the hair.

In addition, the polymer latex may have a glass transition temperature at room temperature (25 ℃) or more and below zero (-50 ℃ or less) at the same time. Preferably, the average particle size of the polymer latex is less than 1mm.

In the present invention, the polymer latex may be prepared by a conventional latex production method, preferably using an emulsion-free emulsion polymerization method.

As a manufacturing method, first, the monomer for constituting the nucleus part is 5 to 90% by weight based on the total monomer weight, the monomer constituting the flexible chain region is 1 to 50% by weight based on the total monomer weight, and a crosslinking agent for forming a crosslinked structure. 0.01 to 50% by weight relative to the total monomer weight is mixed. The mixed solution was added to an aqueous solution in which 0.1 to 5% by weight of the cationic initiator was dissolved, and at a stirring speed of 250 rpm for 3 to 6 hours, preferably 4 hours at a temperature of 30 to 90 ° C, preferably 70 ° C under a nitrogen atmosphere. Emulsion polymerization gives polymer latex. In order to further add a cationic group to the latex produced by the above production method, preferably, the monomer for imparting cationicity when mixing the nucleus constituent monomer, the chain constituent monomer, and the crosslinking agent is 0.1-30 to the total monomer weight. It can be added by weight percent.

When the temperature of the emulsion polymerization is less than 30 ℃ in the above production method, the initiator is not initiated, the polymerization is not effective, whereas when the temperature is above 90 ℃ water is boiled and the polymerization reaction is not properly performed.

Looking at the present invention in more detail as follows.

In the present invention, the monomers used to form a solid nucleus portion of the polymer nano latex are monomers capable of radical polymerization, specifically, styrene, p- or m-methylstyrene, p- or m-ethylstyrene, p- Or m-chlorostyrene, p- or m-chloromethylstyrene, styrenesulphonic acid, p- or mt-butoxystyrene, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, t-butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, n-octyl (meth) acrylate, lauryl (meth) Acrylate, stearyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, polyethylene glycol (meth) acrylate, methoxypolyethylene glycol (meth) acrylate, glycidyl (meth) acrylate, dimethyl Aminoethyl (meth) Ta) acrylate, diethylaminoethyl (meth) acrylate, vinyl acetate, vinyl propionate, vinyl butyrate, vinyl ether, allyl butyl ether, allyl glycidyl ether, alkyl (meth) acrylamide, (meth) acrylic One or more selected from the group consisting of ronitrile and the like can be used. The content of the nucleus portion is appropriately 5 to 90% by weight, more preferably 10 to 50% by weight relative to the total polymer content. It is difficult to impart elasticity at a concentration of less than 5% by weight, and soft at a concentration of more than 90% by weight.

In the production of the latex particles in the present invention, the crosslinking agent used to form the crosslinked structure is capable of radical polymerization, specifically, divinylbenzene, 1,4-divinyloxybutane, divinylsulphone, diallyl phthalate , Allyl compounds such as diallyl acrylamide, triallyl (iso) cyanurate, trially trimellitate, (poly) ethylene glycol di (meth) acrylate, (poly) propylene glycol di (meth) acrylate, Pentaaryl tritol tetra (meth) acrylate, pentaaryl tritol tri (meth) acrylate, pentaaryl tritol di (dec) acrylate, trimethylolpropane tri (meth) acrylate, dipentaeryl (Poly) alkylene glycol di (meth) acrylates such as tritol hexa (meth) acrylate, ipentaeryl tritol penta (meth) acrylate and glycerol tri (meth) acrylate And includes at least one selected eojin group species, a crosslinking agent is 0.01 to 50 wt% compared to the total content of the polymer is suitable because it can affect the form of the composite particles and the degree of polymerization depending on the concentration. Crosslinking network formation is not possible at concentrations below 0.01 wt%, and phase separation may occur during emulsion polymerization at concentrations above 50 wt%.

Monomers used in the flexible chain region around the nucleus introduced for moisturizing in the present invention are monomers having a functional group capable of radical polymerization and capable of absorbing moisture in the air, and specifically, poly (ethylene glycol) meta Ether acrylate, (poly) ethylene glycol acrylate, (poly) ethylene glycol (meth) acrylate, (poly) propylene glycol acrylate, (poly) propylene glycol (meth) acrylate, hydroxyethyl (meth) acryl And one or more selected from the group consisting of latex, N-hydroxy (meth) acrylamide, and the like. The flexible monomer is added in an amount of 1 to 50% by weight based on the total polymer content in an appropriate amount for producing a nanostructured latex. At concentrations below 1% by weight, effective moisturizing is difficult to provide, and at concentrations above 50% by weight, gelation may occur during latex production.

As the monomer used to impart cationicity to the latex in the present invention, a cationic monomer capable of radical polymerization is used. Specifically, 2- (methacrylyl) ethyl triethyl ammonium chloride, 2-vinylpyridine, 3-vinylpyridine, 4-vinylpyridine, acrylamide, (meth) acrylamide, vinylpyrrolidone, vinyl-N-methylpyridinium chloride, 3-methacrylyl-2-ethyl-tetraalkyl ammonium chloride , Methacrylyl-3-hydroxypropyltrimethyl ammonium chloride, acrylyl-2-ethyl-tetraalkyl ammonium chloride, acrylyl-3-propyl-tetraalkyl ammonium chloride, 3-methacrylolyl One or more selected from the group consisting of -2-hydroxypropyltrimethyl ammonium chloride, methacrylyl-3-propyl tetraalkyl ammonium chloride, and the like can be used. It is added in an amount of 0.1 to 30% by weight based on the weight of monomer. This is because when the cationic group is added at less than 0.1% by weight, effective adsorption cannot be expected on the hair, and when it exceeds 30% by weight, the latex film formed by being adsorbed on the hair exhibits a hard property.

Initiators used in the present invention are cationic initiators, specifically 2,2'-azobis (2-methyl propion amidine) dihydrochloride, 2,2'azobis (N, N'-dimethylene Isobutylamidine) dihydrochloride, 2,2'-azobis (2-amidinepropane) dihydrochloride, 2,2'-azobis-2-methyl-N- [1,1-bis (hydroxy Methyl) -2-hydroxyethyl] propyne-amide, 2,2'-azobis2-methyl-N- [1,1'-bis- (hydroxymethyl) -ethyl] propyne-amide, 2, And at least one azo compound selected from the group consisting of 2'-azobis (isobutylamide) dihydrate and the like. The amount of use is appropriately 0.1 to 5% by weight based on the total polymer content. At a concentration of less than 0.1% by weight, it is difficult to expect an effective starting effect, and at a concentration of more than 5% by weight, the stability of the system tends to decrease due to excessive increase in polymerization rate.

Hereinafter, the method of the present invention will be described in more detail with reference to Examples and Comparative Examples, but the scope of the present invention is not limited to the following Examples.

<Example 1>

The polymer latex having a biphase structure was prepared by the following process. 7.5 g of butyl methacrylate, 2.5 g of poly (ethylene glycol) meth ether acrylate, 0.5 g of 2- (methacrylyl) ethyl trimethyl ammonium chloride, 0.5 g of ethylene glycol dimethacrylate were mixed . The mixture was added to an aqueous solution containing 0.5 g of 2,2'-azobis (2-methylpropion amidine) dihydrochloride, and polymerized under a nitrogen atmosphere at a stirring speed of 250 rpm for 4 hours at 70 ° C. g was obtained.

Comparative Example 1

In order to confirm the cationic effect, a polymer latex was prepared in the same manner as in Example 1, but without introducing 2- (methacrylyl) ethyl trimethyl ammonium chloride as a cationic monomer.

Comparative Example 2

In order to confirm the effect of the flexible chain and the cationic group around the nucleus to enhance the moisturizing power, a polymer latex was prepared in the same manner as in Example 1, except that poly (ethylene glycol) methether acrylate and 2- (methacrylyl) were used. Prepared without introducing ethyl trimethyl ammonium chloride.

<Test Example 1>

The morphology of the biphase cationic polymer latex prepared in Example 1 was observed using a transmission electron microscope (TEM). It was confirmed from FIG. 1 that spherical polymer particles were produced. The particle size and glass transition temperature of the polymer latexes prepared in Example 1 and Comparative Examples 1 and 2 were measured using a particle size analyzer (DLS) and a differential scanning calorimeter (DSC), respectively, and the results are shown in Table 1 below.

Sample Average particle diameter (nm) Primary glass transition temperature (℃) Secondary glass transition temperature (℃) Latex prepared in Example 1 287 -57.5 29 Latex prepared in Comparative Example 1 457 -57.5 29 Latex prepared in Comparative Example 2 505 - 29

The latex prepared as shown in Table 1 showed a particle size of about 300 to 500nm, and the latex into which the flexible chain was introduced was prepared (Example 1, Comparative Example 1). Smaller particle size distribution was shown due to higher solubility than butylmethacrylate. In particular, when cationic monomers were introduced (Example 1), due to the polarity of the cationic group, smaller particles were produced due to the better emulsification and solubility than the flexible chains.

As a result of measuring the glass transition temperature of the prepared latexes, the latex made of only the butyl methacrylate monomer of Comparative Example 2 showed one transition region at 29 ° C., which is the characteristic glass transition temperature of polybutylacrylate, These added latexes (Example 1, Comparative Example 1) exhibited two transition regions of -57.5 ° C and 29 ° C. From the above results, it was confirmed that the prepared polymer latex membrane was separated by polyethylene glycol and polybutyl methacrylate.

<Test Example 2>

After immersing the hair in water (polymer content 1 wt%) in which the polymer latex prepared in Example 1 and Comparative Example 1 was dispersed for 1 minute, the hair was dried at room temperature. The results of observing the surface of the dried hair and the general hair using a scanning electron microscope are shown in FIGS. 2 to 4, and it was confirmed that the surface of the hair treated with the solution in which the polymer latex was dispersed was smoothly coated than the general hair. . 3 to 4, the polymer latex in which only the flexible chain is introduced in FIG. 3 shows partial hair coating, whereas the surface of the hair adsorbed the polymer latex added with the flexible chain of FIG. The whole surface was coated very smoothly. It was confirmed that the polymer latex added with the cationic group was more effectively adsorbed onto the hair and showed excellent coating power.

<Test Example 3>

1 g of 10 cm long hair bundles were immersed for 1 minute in the same composition as Test Example 2, the hair was wound on a glass rod 1 cm in diameter, and dried at room temperature for 24 hours. After drying, the hair was separated from the glass rod, and the length of the hair was measured with time. Curling retention was measured according to the following equation to compare the styling effect.

Curl Holding Force (%) = (Lo-Lt2) / (Lo-Lt1) X100

Here, Lo is the initial hair length (10cm), Lt1 is the length of the hair measured after peeling off the glass rod, Lt2 is the length of the hair measured after 12 hours after peeling off the glass rod. As shown in Table 2, the hair to which the polymer latex prepared in Example 1 adsorbed showed better curl retention than the polymer latex prepared in Comparative Examples 1 and 2. The latex added with the cationic group prepared in Example 1 is more adsorbed to the hair than the latex without the cationic group, it was confirmed that the styling effect is excellent.

<Test Example 4>

The hair bundle was immersed for 1 minute in the same composition as Test Example 2 and dried at room temperature. After drying, the texture of this hair bundle is smooth by an experienced hair evaluation agent. is average. Three items of stiffness were evaluated. Moisturizing feeling is also moisturized by the hair evaluator in the same way. is average. It was evaluated by three items of dry. As shown in Table 2, the polymer latex prepared in Comparative Example 2 was evaluated to be stiff, while the polymer latex prepared in Example 1 and Comparative Example 1 was evaluated to be relatively soft. Because of this, it was confirmed that the latex added with the flexible chain can improve the stiffness that appears as a problem when using a single material styling polymer particles. The results of Test Examples 2 to 4 are summarized in Table 2 below.

Sample Coating degree Curl Retention (%) Hair texture Latex prepared in Example 1 Coating on entire hair surface 77 soft Latex prepared in Comparative Example 2 Partial coating 64 soft Latex prepared in Comparative Example 2 Partial coating 59 Stiff

<Test Example 5>

The hair bundle was immersed for 1 minute in the same composition as Test Example 2 and dried to coat the hair surface. 5 g of the coated hair bundle was quantified and soaked in water, and then placed on a dry towel to remove moisture from the surface by applying the same size force. The hair bundle was placed in a constant temperature and humidity chamber at 40 ° C. and a relative humidity of 50% to evaluate the moisture retention by measuring the weight for each hour. The experiment was repeated five times for each sample, and the average value (unit is g) is shown in Table 3. The hair coated with the polymer latex of Example 1 had the highest initial moisture content. This is because the polymer latex of Example 1, which exhibits excellent coating power as in Test Example 2, is relatively coated on the hair surface, and thus, more hydrophilic flexible chain groups are distributed on the hair surface. do. In addition, the hairs coated with the polymer latex containing the flexible chain groups prepared in Example 1 and Comparative Example 1 showed excellent moisture retention. As a result, it was confirmed that the hair coated with the polymer latex added with the flexible chain group having excellent moisturizing power showed a continuous moisturizing effect.

Hair coated with latex of Example 1 Hair coated with latex of Comparative Example 1 Hair coated with latex of Comparative Example 2 Immediately after treatment 5.428 5.363 5.287 1 hour later 5.370 5.301 5.051 2 hours later 5.355 5.264 5.030 3 hours later 5.347 5.256 5.026

<Formulation Example 1>

To the composition shown in Table 4 was prepared according to the conventional hair care cosmetics. The additives in Table 4 were mixed and then completely dissolved using a mechanical stirrer at room temperature. The polymer latex was slowly introduced into the mixed solution and dispersed in the last step. The cosmetics produced have a pH of 6-7 and are pale white mucus with a viscosity of about 5000-10000 cps.

ingredient Content (% by weight) Polyacrylic acid 0.01 Triethanolamine 0.1 Polymer Latex (Example 1) 5 Purified water To 100

<Formulation Example 2>

To the composition shown in Table 5 to prepare a shampoo cosmetics according to a conventional method. Each additive was warmed at a high temperature of 70 ° C., and then obtained in the form of a slime having a viscosity of pH 5-6, 2000-4000 cps.

ingredient Content (% by weight) Purified water To 100 Polyquaternium 0.1 Polyoxyethylene lauryl ammonium sulfate 15 Ethylene Glycol Distearate 1.5 Cocamide Monoethanolamide One Cetyl alcohol 0.25 Stearyl alcohol 0.25 E.D.T.A-2Na 0.05 Ammonium Lauryl Sulfate 45 Cocoaminopropyl betaine 3 silicon 2 antiseptic Quantity Polymer Latex (Example 1) 10

<Formulation Example 3>

A rinse cosmetic was prepared in a conventional manner with the composition shown in Table 6. Each additive was warmed at a high temperature of 70 ° C. and then obtained in the form of a slime having a viscosity of pH 3 to 4 and 1000 to 5000 cps.

ingredient Content (% by weight) Purified water To 100 Stearyl Trimethyl Ammonium Chloride 1.5 Cetyl alcohol 1.3 Stearyl alcohol 1.3 Polyoxyethylene stearic acid ester 0.05 Glycerin Stearic Acid Ester 0.05 Stearylaminopropyl Dimethylamine One Hydroxypropyl gum 0.2 Citric acid 0.4 E.D.T.A-2Na 0.02 antiseptic Quantity Polymer Latex (Example 1) 10

<Test Example 6>

Curled retention and hair feel for the product of Formulation Example 1 were evaluated by the methods applied in Test Examples 3 and 4, and are shown in Table 7. Formulation example 1 showed strong curl retention. Formulation Example 1 shows a strong styling effect similar to Test Example 3 because the adsorption of the hair surface of the polymer latex directly proceeds.

<Test Example 7>

Similar to the methods applied in Test Examples 3 and 4, the curl retention and hair feel for the products of Formulation Examples 2 to 3 were evaluated. In each evaluation, a process of washing the hair sufficiently with excess water was added following the coating process according to Test Example 3. After repeating this process three times, curl retention and hair tactile evaluation were performed. The evaluation results are summarized in Table 7. A relatively weak curl retention is seen in the shampoo formulation of Formulation Example 2. This is because part of the latex is cleaned during the cleaning process. However, the result of curl retention due to the polymer latex coated on the surface was obtained as it is. In the rinse formulation of Formulation Example 3, relatively strong curl retention can be obtained. This is because the hair coating power of the polymer latex due to other hair adsorption components in the formulation is improved. The inherent smooth evaluation of the polymer latex was all the same.

Sample Coating degree Curl Retention (%) Hair texture Formulation Example 1 Overall coating on the hair surface 75 Slightly soft Formulation Example 2 Partial coating 62 soft Formulation Example 3 Overall coating on the hair surface 71 soft

As described above, the polymer latex having an ideal structure forming the polymer membrane of the nanostructure proposed in the present invention may serve as an excellent additive in the hair cosmetic composition to simultaneously achieve the styling effect and moisturizing effect required by the hair cosmetic composition. It is expected to be. In particular, the polymer latex having an ideal structure can improve the mechanical properties of a general latex film made of a material having a weak mechanical strength and introduce a desired functional group, so that in addition to the hair cosmetic composition, paint, coating, fiber, paper, adhesive It can be applied to various industrial materials such as various.

Claims (13)

delete delete delete delete It has a crosslinked structure and has styrene, p- or m-methylstyrene, p- or m-ethylstyrene, p- or m-chlorostyrene, p- or m-chloromethylstyrene, styrenesulphonic acid, p- or mt- Butoxystyrene, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, t-butyl (meth) acrylate , 2-ethylhexyl (meth) acrylate, n-octyl (meth) acrylate, lauryl (meth) acrylate, stearyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, polyethylene glycol ( Meth) acrylate, methoxypolyethylene glycol (meth) acrylate, glycidyl (meth) acrylate, dimethylaminoethyl (meth) acrylate, diethylaminoethyl (meth) acrylate, vinyl acetate, vinyl propionate Vinyl butyrate, Carbonyl ether, allyl butyl ether, allyl glycidyl naphthyl ether, (meth) acrylamide, (meth) solid polymer nucleus region composed of at least one member selected from the monomer group consisting of acrylonitrile; Poly (ethylene glycol) meth ether acrylate, (poly) ethylene glycol acrylate, (poly) ethylene glycol (meth) acrylate, (poly) propylene glycol acrylate, A flexible chain region surrounding the polymer nucleus which is at least one member selected from the group consisting of (poly) propylene glycol (meth) acrylate, hydroxyethyl (meth) acrylate, and N-hydroxy (meth) acrylamide; And Cationic group; Hair cosmetic composition containing a polymer latex containing at the same time. delete The hair cosmetic composition according to claim 5, wherein the polymer latex may be present at a glass transition temperature at a temperature above room temperature and below zero. The hair cosmetic composition according to claim 5, wherein the average particle size of the polymer latex is 100 to 1000 nm. delete The crosslinking agent for forming the crosslinked structure of the solid nucleus is divinylbenzene, 1,4-divinyloxybutane, divinylsulphone, diallyl phthalate, diallyl acrylamide, triallyl (iso). Allyl compounds such as cyanurate, trially trimellitate, (poly) ethylene glycol di (meth) acrylate, (poly) propylene glycol di (meth) acrylate, pentaerythritol tetra (meth) acrylate , Pentaaryl tritol tri (meth) acrylate, pentaaryl tritol di (de) acrylate, trimethylolpropane tri (meth) acrylate, dipentaerythritol hexa (meth) acrylate, ifenta Hair cosmetics bath characterized in that it is at least one member selected from the group consisting of (poly) -acylene glycol di (meth) acrylates such as aryltritol penta (meth) acrylate and glycerol tri (meth) acrylate. Water. delete The method of claim 5, wherein the monomer for adding the cationic group is 2- (methacrylyl) ethyl trimethyl ammonium chloride, 2-vinylpyridine, 3-vinylpyridine, 4-vinylpyridine, acrylamide, (meth) Acrylamide, vinylpyrrolidone, vinyl-N-methylpyridinium chloride, 3-methacrylyl-2-ethyl-tetraalkyl ammonium chloride, methacrylyl-3-hydroxypropyltrimethyl ammonium chloride, Acrylonitrile-2-ethyl-tetraalkyl ammonium chloride, acrylyl-3-propyl-tetraalkyl ammonium chloride, 3-methacrylyl-2-hydroxypropyltrimethyl ammonium chloride, methacrylyl- Hair cosmetic composition, characterized in that at least one member selected from the group consisting of 3-propyltetraalkyl ammonium chloride. The method according to any one of claims 5, 7, 8, 10 and 12, wherein the polymer latex is for improving hair styling according to the improvement of hair coating power and for improving hair moisturizing hair. Cosmetic composition.

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