OLEFIN POLYMERIZATION CATALYST AND PROCESS FOR POLYMERIZING OLEFIN

WIPO Patent Application WO1988008432

A1

A process for polymerizing or copolymerizing an olefin in the presence of an olefin polymerization catalyst prepared from: (A) a compound of a transition metal belonging to the group IVB of the periodic table, or (A') a solid catalyst component comprising a compound of a transition metal belonging to the group IVB of the periodic table supported on a particulate carrier; (B) aluminoxane; and (C) an organoaluminum compound represented by general formula (I): R?1mAl(OR?2)3-m or (II): R?3nAl[OSiR?43]3-n (wherein R?1, R?2 and R?3 each represents a hydrocarbyl group, R?4 represents a hydrocarbyl group, an alkoxy group or an aryloxy group, and m and n each represents a positive number of 0