发明授权
US5152991A Use of selectively hydrogenated styrene/butadiene copolymers in cosmetic and pharmaceutical compositions 失效
在化妆品和药物组合物中使用选择性氢化苯乙烯/丁二烯共聚物

Use of selectively hydrogenated styrene/butadiene copolymers in cosmetic
and pharmaceutical compositions
摘要:
Copolymers selectively hydrogenated on the olefinic double bond and composed ofA) 50 to 65% by weight styrene,B) 35 to 50% by weight butadiene andC) 0 to 5% by weight other copolymerizable monomers are used in cosmetic and pharmaceutical compositions.
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