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Case-hardening zwitterion type polymer for hair, preparing method and application of the same

A zwitterionic, hair-setting technology, which can be used in cosmetic preparations, hair care, pharmaceutical formulations, etc., can solve the problems of lack of good styling ability and elasticity, and achieve good hand feeling, good transparency, and good affinity Effect

Active Publication Date: 2009-07-15
GUANGZHOU TINCI MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of hair styling resin does not have good styling ability and good elasticity

Method used

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  • Case-hardening zwitterion type polymer for hair, preparing method and application of the same
  • Case-hardening zwitterion type polymer for hair, preparing method and application of the same
  • Case-hardening zwitterion type polymer for hair, preparing method and application of the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A. In the reaction kettle with reflux cooler, dripping device, thermometer, nitrogen gas introduction device and stirring device, add methacrylic acid N, N-dimethylamino from Linzi Wanduofu Fine Chemicals Factory in Zibo City 55 parts by weight of ethyl ester, 35 parts by weight of methyl methacrylate of Shanghai Pen Chemical Plant, 9 parts by weight of lauryl methacrylate of Jinling Petrochemical Technology Development Company of Sinopec Group, stearin methacrylate of Jinling Petrochemical Technology Development Company of Sinopec Group 1 part by weight of acid ester, 120 parts by weight of absolute ethanol from Shenzhen Baodi Chemical Co., Ltd., nitrogen gas, stirring and mixing at 250 rpm under normal pressure while raising the temperature, when the temperature reaches 60 ° C, slowly add dropwise within 2 hours Concentration is 25 parts by weight of ethanol solution of 1.6% (parts by weight) of azobisisoheptanonitrile, and the insulation reaction is 1 hour;

[0031] ...

Embodiment 2

[0037] Same as embodiment 1, just change the methacrylic acid N in A reaction, 55 parts by weight of N-dimethylaminoethyl ester to acrylate N, N-diethylaminomethyl ester 45 parts by weight, methyl methacrylate 35 parts by weight The parts by weight are replaced by 20 parts by weight of ethyl acrylate and 30 parts by weight of propyl acrylate, 9 parts by weight of lauryl methacrylate and 1 part by weight of stearate methacrylate are replaced by 5 parts by weight of pentadecyl acrylate, and the parts by weight of ethanol are replaced by It is 230 parts by weight of isopropanol, stirred and mixed at 200 rev / min under normal pressure and nitrogen environment, and the temperature is raised simultaneously, when the temperature reaches 61° C., within 1 hour, the concentration is slowly added dropwise and is 0.4% (parts by weight) of benzene peroxide 50 parts by weight of isopropanol solution of formyl, heat preservation reaction for 2 hours;

[0038] When the temperature of the react...

Embodiment 3

[0043] Same as embodiment 1, just change the methacrylic acid N in the A reaction, 55 parts by weight of N-dimethylaminoethyl ester to ethacrylic acid N, N-dipropylaminopropyl ester 20 parts by weight and ethylacrylic acid N , 30 parts by weight of N-dibutylaminobutyl ester, 35 parts by weight of methyl methacrylate are replaced by 45 parts by weight of butyl ethacrylate, 9 parts by weight of lauryl methacrylate and 1 weight part of stearate methacrylate Parts are replaced by 5 parts by weight of decanyl ethacrylate, and ethanol is replaced by 175 parts by weight of ethylene glycol. Stir and mix at 150 rpm under normal pressure and nitrogen environment while heating up. When the temperature reaches 59 ° C, within 1.5 hours Slowly add dropwise 30 parts by weight of ethylene glycol solution containing 1% (parts by weight) of lauryl peroxide, and keep the reaction for 1.5 hours;

[0044] When the temperature of the reaction system in the B reaction was raised to 61° C., 50 parts ...

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Abstract

The present invention relates to a zwitterionic polymer for hair styling and a preparation method and application thereof, in particular to a zwitterionic polymer used in hair styling products such as jelly lotion and hairspray, which discloses the zwitterionic polymer The molecular weight of the type polymer is 72,000-100,000, and the molecular weight distribution is 1.0-1.2. It is used for polymerization by adding the following three types of polymer monomers, one or more fatty alcohol solutions in each type, to the temperature in stages and in batches. Initiator, then add the aqueous solution of haloacetate, and carry out amphoteric ionization to make it. The film formed by it has good hand feeling, elasticity and good water solubility, but it does not stick under high temperature and humidity, and the film is transparent. The ethanol solution of this polymer or the jelly water formula of the aqueous solution has excellent setting power, and has excellent antistatic and shampooing properties, and has good affinity with hair, and has a certain Conditioning.

Description

technical field [0001] The invention relates to a zwitterionic polymer used in hair care, its preparation method and application, in particular used in hair styling products such as jelly water and hairspray. Background technique [0002] The polymers used in hair styling agents today generally use nonionic, anionic and cationic polymers. Non-ionic polymers include polyvinyl-methyl ether, polyvinylpyrrolidone, etc. These polymers have a good setting effect, but polyvinylpyrrolidone is easily affected by humidity conditions, that is, the film before moisture absorption is hard and easy to peel off phenomenon, and high temperature and humidity will become very soft, causing sticking phenomenon, the hair sticks to each other, often difficult to care for. The effect of polyvinyl-methyl ether on humidity is more obvious. [0003] Anionic polymers include vinyl carboxylic acids, polymers with ionic groups such as acrylic acid and methacrylic acid, and copolymers formed of these ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/10C08F8/00C08F4/28A61K8/84A61Q5/06
Inventor 华慢张若昕袁立新杨金萍
Owner GUANGZHOU TINCI MATERIALS TECH