There is provided a process for producing a styrenic graft copolymer which comprises coplymerizing a styrenic monomer and a styrenic monomer having a hydrocarbon radical with an unsaturated bond in the presence of a catalyst comprising as primary ingredient (A) a transition metal compound and (B) a contact product of an organoaluminum compound and a condensation agent or (C) a compound which produces an ionic complex by reacting with the above-mentioned transition metal compound and subsequently graft polymerizing an ethylenically unsaturated monomer onto the resultant styrenic copolymer.
The above-described styrenic graft copolymer is greatly improved in terms of compatibility, adhesivity, coatability and wettability while preserving heat resistance and chemical resistance thereof, and thus effective as a variety of constructional materials and compatibilizing agents. Furthermore, the composition or multi-layer material comprising the above-mentioned styrenic graft copolymer is widely utilized in a variety of application field including film, sheet, especially stampable sheet, container, packaging material, automobile parts, electrical and electronic parts, etc.
提供了一种生产
苯乙烯接枝共聚物的工艺,该工艺包括在催化剂存在下,使
苯乙烯单体和具有不饱和键烃基的
苯乙烯单体共聚,催化剂的主要成分包括(A)过渡
金属化合物和(B)
有机铝化合物与
缩合剂的接触产物或(C)通过与上述过渡
金属化合物反应产生离子络合物的化合物,然后将
乙烯基不饱和单体接枝聚合到生成的
苯乙烯共聚物上。上述过渡
金属化合物反应生成离子络合物的化合物,然后将
乙烯不饱和单体接枝聚合到生成的
苯乙烯共聚物上。
上述
苯乙烯接枝共聚物在保持其耐热性和耐
化学性的同时,在相容性、粘合性、涂覆性和润湿性方面得到了极大的改善,因此可以有效地用作各种建筑材料和相容剂。此外,由上述
苯乙烯接枝共聚物组成的组合物或多层材料可广泛应用于各种应用领域,包括薄膜、片材,尤其是可冲压片材、容器、包装材料、汽车零件、电子电气零件等。