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HAIR SETTING AGENT, HARIDRESSING, NEW COPOLYMER, FILM- FORMING AGENT IN HAIR SETTING AGENT AND HAIRDRESSING, AND HAIR SETTING AGENT IN FORM OF SPRAY FORMULATION
HAIR SETTING AGENT, HARIDRESSING, NEW COPOLYMER, FILM- FORMING AGENT IN HAIR SETTING AGENT AND HAIRDRESSING, AND HAIR SETTING AGENT IN FORM OF SPRAY FORMULATION
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机译：头发定型剂，发型师，新共聚物，头发定型剂和发型师中的成膜剂以及喷雾剂形式的头发定型剂
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摘要
PROBLEM TO BE SOLVED: To obtain a film-forming agent having good compatibility with a hydrocarbon-based propellant and useful for a hair cosmetic capable of simultaneously exhibiting good hair setting actions and low hygroscopicity. SOLUTION: This hair setting agent and hairdressing comprise a polymer based on N-vinylcaprolactam as a film-forming agent. The polymer is composed of 35-75 wt.% of group IV of the N-vinylcaprolactam monomer (monomer A), 25-65 wt.% of a mixture of 20-60 pts.wt. of a monomer D with acrylic acid or methacrylic acid (monomer F) and 0-4 wt.% of other radically polymerizable monomers E or 35-80 wt.% of group V of the N-vinylcaprolactam (monomer A), 20-65 wt.% of a mixture of 15-50 pts.wt. of the monomer D with 5-15 pts.wt. of an alkyl acrylate or an alkyl methacrylate monomer (monomer G) having 1-4 carbon atoms in the alkyl group and further amino group unsubstituted or substituted with a 1-4C alkyl group and 0-4 pts.wt. of the other radically polymerizable monomers E. The existing carboxyl groups of the polymer are partially or wholly neutralized with an amine. The polymer contained in the hair setting agent and hairdressing is excellent in compatibility with a nonpolar propellant and exhibits good hair setting actions and curl retention and low water absorptivity.
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