A novel catalyst for olefin polymerization is provided which comprises [A] a metallocene compound containing a transition metal selected from Groups 3, 4, 5, and 6 of Periodic Table, [B] a reaction product of topotactic reduction by electron transfer, and [C] an organoaluminum compound. The catalyst may contain additionally [D] an organoalkaline earth metal compound or an organozinc compound. This catalyst has high catalytic activity for olefin polymerization without employing an expensive catalyst component.
提供了一种用于烯烃聚合的新型催化剂,它包括[A]一种含有选自元素周期表第 3、4、5 和 6 族的过渡
金属的茂
金属化合物,[B]一种通过电子转移进行拓扑还原的反应产物,以及[C]一种
有机铝化合物。催化剂中还可添加 [D] 有机碱土
金属化合物或
有机锌化合物。这种催化剂对烯烃聚合具有很高的催化活性,而无需使用昂贵的催化剂组分。