Olefin polymerization catalyst

Details Olefin polymerization catalyst Olefin polymerization catalyst

C - Chemistry, Metallurgy

08

F

C08F 4/646 (2006.01) C08F 10/00 (2006.01) C08F 297/08 (2006.01)

Patent

CA 2072430

ABSTRACT OF THE DISCLOSURE An olefin polymerization catalyst which is obtained by contacting the following components (A) and (B): component (A): a product of contacting the following components (A1) and (A2): component (A1): polyolefin powder having specific values of pore diameter, pore volume, average pore diameter and average particle diameter, component (A2): a solid component for a Ziegler catalyst comprising titanium, magnesium and a halogen as the essential components; component ( B ): an organoaluminum compound. The supporting state of the catalyst is improved, and a contaminant-free polymer having a satisfactorily large particle diameter without the lowering of the activity or the stereoregularity of the catalyst is successfully obtained.

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