Olefin polymerization catalyst, prepolymerized catalyst, and olefin polymerization process
申请人:Mitsui Chemicals, Inc.
公开号:EP0844260A1
公开(公告)日:1998-05-27
An olefin polymerization catalyst comprising:
(A) a solid titanium catalyst component comprising magnesium, titanium, halogen and either a polycarboxylic acid ester or a polyether,
(B) an organoaluminum compound, and
(C) an organosilane compound of formula (1):
wherein n is 1 or 2; the groups Ra are the same or different and each is methyl or ethyl; R1, R2, R3 and R4 are the same or different and each is hydrogen, halogen, alkyl, cycloalkyl, aryl, or aralkyl; and one of R1 and R2 together with one of R3 and R4 may form a ring together with the carbons to which they are bonded.
一种烯烃聚合催化剂,包括
(A) 由镁、钛、卤素和聚羧酸酯或聚醚组成的固体钛催化剂组分、
(B) 有机铝化合物,以及
(C) 式(1)的有机硅化合物:
其中 n 为 1 或 2;基团 Ra 相同或不同,且各自为甲基或乙基;R1、R2、R3 和 R4 相同或不同,且各自为氢、卤素、烷基、环烷基、芳基或芳烷基;R1 和 R2 中的一个与 R3 和 R4 中的一个可与它们所键合的碳一起形成一个环。