A heat resistant copolymer composition is provided by blending two kinds of copolymers one of which is obtainable by polymerizing a maleimide monomer (A), an aromatic vinyl monomer (B), and unsaturated nitrile monomer (C) and optionally at least one other comonomer copolymerizable therewith (D) in a specific monomer ratio in the presence or absence of an elastomeric polymer and which has an intrinsic viscosity of 0.3 to 1.2 dl/g, and another of which is obtainable by copolymerizing the aromatic vinyl monomer (B), the unsaturated nitrile (C) and optionally at least one other comonomer copolymerizable therewith (D) in a specific monomer ratio in the presence or absence of the elastomeric polymer and which has an intrinsic viscosity of 0.3 to 1.5 dl/g.
通过混合两种共聚物提供了一种耐热共聚物组合物,其中一种共聚物可通过在有或没有弹性聚合物的情况下,以特定的单体比例聚合马来
酰亚胺单体(A)、芳香
乙烯基单体(B)和不饱和腈单体(C)以及可与之共聚的至少一种其他共聚单体(D)而获得,其固有粘度为 0.3至1.2分升/克,另一种是在有或没有弹性聚合物的情况下,将芳香
乙烯基单体(B)、不饱和腈(C)和至少一种可与之共聚的共聚单体(D)按特定的单体比例共聚而得,其固有粘度为0.3至1.5分升/克。