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US3280219A Styrene- acrylonitrile copolymers blended with graft copolymers of styrene onto butadiene-alkyl acrylate-vinyl alkyl ether terpolymers 失效
苯乙烯 - 丙烯腈共聚物与苯乙烯接枝共聚物共混在丁二烯 - 丙烯酸烷基酯 - 乙烯基烷基醚三元共聚物上

Styrene- acrylonitrile copolymers blended with graft copolymers of styrene onto butadiene-alkyl acrylate-vinyl alkyl ether terpolymers
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