Synonyms: 2-Propenenitrile, polymer with 1,3-butadiene, ethenylbenzene and (1-methylethenyl)benzene;2-propenenitrile, polymer with 1,3-butadiene, ethenylbenzene and (1-methylethen;ACRYLONITRILE, POLYMER WITH 1,3-BUTADIENE, ALPHA-METHYLSTYRENE, AND STYRENE;ABS/ alpha-methylstyrene copolymer