发明授权
US4128634A Cosmetic emulsions containing copolymers of alkyl(meth)acrylates and mono-(N-hydroxyalkyl) or bis-(N-hydroxyalkyl) (meth)acrylamides 失效
包含(甲基)丙烯酸烷基酯和单 - (N-羟烷基)或双 - (N-羟烷基)(甲基)丙烯酰胺的共聚物的化妆品乳液

Cosmetic emulsions containing copolymers of alkyl(meth)acrylates and
mono-(N-hydroxyalkyl) or bis-(N-hydroxyalkyl) (meth)acrylamides
摘要:
Water-in-oil emulsions containing from 2% to 20% by weight of polymeric emulsifiers comprising statistical copolymers composed of units of the general formulae ##STR1## in the molar ratio of (I) to (II) of 2:1 to 20:1, wherein X is hydrogen or methyl, R.sub.1 is alkyl having 6 to 24 carbon atoms, and R.sub.2 is --NH--CH.sub.2 OH, --NH--CH.sub.2 CH.sub.2 OH, or --N(CH.sub.2 CH.sub.2 OH).sub.2 ; 20 to 75% by weight of water; and the remainder to 100% by weight of conventional oily substances used in cosmetic emulsions.
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