丙烯腈、丁二烯、苯乙烯三种单体的接枝共聚合产物，取它们英文名的第一个字母命名。它是一种强度高、韧性好、综合性能优良的树脂，用途广泛，常用作工程塑料。工业上多以聚丁二烯胶乳或苯乙烯含量低的丁苯橡胶为主链，与丙烯腈、苯乙烯两种单体的混合物接枝共聚合制得。
Graft copolymerization products of acrylonitrile, butadiene and styrene were named after the first letter of their English names. It is a kind of resin with high strength, good toughness and excellent comprehensive performance. It is widely used and often used as engineering plastics. In industry, polybutadiene latex or styrene-butadiene rubber with low styrene content are the main chains, which are prepared by graft copolymerization with the mixture of acrylonitrile and styrene.
实际上它往往是含丁二烯的接枝聚合物与丙烯腈－苯乙烯共聚物SAN（或称 AS）的混合物。近年来也有先用苯乙烯、丙烯腈两种单体共聚，然后再与接枝共聚的ABS树脂以不同比例混合,以制得适应不同用途的各种 ABS树脂。20世纪50年代中期已开始在美国工业化生产。
In fact, it is often a mixture of butadiene-containing graft polymers and acrylonitrile-styrene copolymer SAN (or AS). In recent years, ABS resins have been prepared by copolymerization of styrene and acrylonitrile and then blending with ABS resins in different proportions. Industrialized production began in the United States in the mid-1950s.