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Acrylic resin emulsion for hairdressing agents, hairdressing agent comprising same, and hairdressing method

A technology of acrylic resin and hair conditioner, which is applied in the field of acrylic resin emulsion, which can solve the problem that hair can no longer be styled, and achieve the effect of excellent redispersibility

Active Publication Date: 2015-08-26
JAPAN CORTING RESIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Furthermore, hair conditioners are required to be easily washed after use. On the other hand, in order not to cause the hair to fall apart when exposed to moisture, sweat, rain, etc. during use, the forehead and cheeks are sticky, and the hair cannot be restyled. problem, it also needs to have moderate washing performance

Method used

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  • Acrylic resin emulsion for hairdressing agents, hairdressing agent comprising same, and hairdressing method
  • Acrylic resin emulsion for hairdressing agents, hairdressing agent comprising same, and hairdressing method
  • Acrylic resin emulsion for hairdressing agents, hairdressing agent comprising same, and hairdressing method

Examples

Experimental program
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Effect test

Embodiment 1

[0143]

[0144] In a reaction tank made of SUS equipped with cooling pipes and stirring blades, a PVA-based resin containing a 1,2-diol structural unit in the side chain (average degree of saponification 99 mol%, average degree of polymerization 300, side chain 1,2- The content of diol structural unit (8 mol% / Nippon Synthetic Chemical Industry Co., Ltd.) 10 parts, 0.2 parts of sodium bisulfite and 0.4 parts of sodium carbonate trihydrate are completely dissolved in deionized water (92 parts), and the temperature is raised to 75°C.

[0145] Prepare in advance a substance emulsified with 77 parts of deionized water, unmodified PVA-based resin (manufactured by Nippon Synthetic Chemical Industry Co., Ltd.; trade name "GOHSENOL GL05"), and 100 parts of 2-ethylhexyl acrylate ( i), and 2.7 parts of 10% APS (ammonium persulfate) aqueous solution (ii), first add 10% of (i) and 30% of (ii) to the reaction tank, and make it react for 45 minutes.

[0146] Next, the remaining 90% of (i)...

Embodiment 2

[0149]

[0150] In embodiment 1, 100 parts of 2-ethylhexyl acrylate are changed to 90 parts of 2-ethylhexyl acrylate and 10 parts of methyl methacrylate, and then as unmodified PVA resin, "GOHSENOL GL05" (trade name , Nippon Synthetic Chemical Industry Co., Ltd.) was changed to the product name "GOHSENOL EG05" produced by Nippon Synthetic Chemical Industry Co., Ltd., except that it was carried out in the same manner as Example 1 to obtain an acrylic resin emulsion (2) (non-volatile component 43 %; viscosity 160 mPa·s (B-type viscometer 12 rpm, 23°C); glass transition temperature (Tg) of acrylic resin = -60°C). The acrylic resin emulsion (2) is dispersed and stabilized.

Embodiment 3

[0151]

[0152]In Example 2, 0.3 parts of ethylene glycol dimethacrylate (manufactured by Mitsubish Rayon Co., Ltd.; trade name "ACRYESTER ED") was further added as an acrylic acid monomer, and the procedure was the same as in Example 2. This was carried out to obtain an acrylic resin emulsion (3) (44% non-volatile content; viscosity 210 mPa·s (B-type viscometer 12 rpm, 23° C.); glass transition temperature (Tg) of acrylic resin = -60° C.). The acrylic resin emulsion (3) is dispersed and stabilized.

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Abstract

The present invention addresses the problem of providing an acrylic resin emulsion that is suitable for obtaining a hairdressing agent having, in a well-balanced manner, excellent styling performance (hairdressing performance, hair-redressing performance and texture) and easiness in washing off. The acrylic resin emulsion for hair dressing agents according to the present invention comprises an acrylic resin (A) that has been stably dispersed by a polyvinyl alcohol resin [I].

Description

technical field [0001] The present invention relates to an acrylic resin emulsion useful as a hair dressing (hair styling agent). Background technique [0002] Hair conditioners come in various formulations such as liquid, gel, foam, mist, cream, and wax. [0003] In general, hair dressings are mainly composed of polymers (polymers for styling) for maintaining a desired shape by forming a film on the surface of the hair, and further compounding additives for various purposes. Polymer compositions such as solvents and base agents. In recent years, as hair styling agents, hair creams and waxes, which are emulsified formulations using oil and water, have become mainstream as formulations that allow free styling during hair styling and are easy to reshape after hair styling. [0004] In addition, hair styling agents are required to give the desired shape to the hair and maintain it for a long time, excellent appearance performance, excellent touch performance, and other stylin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/06A61K8/81A61Q5/06
CPCA61K8/8129A61K8/8147A61Q5/06
Inventor 上田光则吉村延能
Owner JAPAN CORTING RESIN
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