Process for preparing ultra-high molecular weight polyethylene

Details Process for preparing ultra-high molecular weight polyethylene Process for preparing ultra-high molecular weight polyethylene

C - Chemistry, Metallurgy

08

F

402/641

C08F 10/02 (2006.01) C08F 4/646 (2006.01)

Patent

CA 1295780

ABSTRACT A process for preparing an ultra-high molecular weight polyethylene by the polymerization of ethylene using a catalyst comprising a solid catalyst component and an organometallic compound, characterized in that said solid catalyst component is a product obtained by contacting the following [A] and [B] together: [A] the reaction product of a magnesium dihalide and a titanium compound represented by the general formula Ti(OR)4 wherein R is a hydrocarbon group having 1 to 20 carbon atoms; [B] the reaction product of an aluminum trihalide and a silicon compound represented by the general formula Si(OR')4 wherein R' is a hydrocarbon group having 1 to 20 carbon atoms.

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