Process for producing polyolefins and polyolefin catalyst

Details Process for producing polyolefins and polyolefin catalyst Process for producing polyolefins and polyolefin catalyst

C - Chemistry, Metallurgy

08

F

C08F 4/642 (2006.01) C08F 2/00 (2006.01) C08F 4/602 (2006.01) C08F 10/00 (2006.01) C08F 210/16 (2006.01) C08F 4/639 (2006.01) C08F 4/6392 (2006.01) C08F 110/02 (2006.01)

Patent

CA 2120813

The present invention provides a process for preparing polyolefins having a multimodal or at least bimodal molecular weight distribution by contacting in a reaction mixture under polymerization conditions at least one olefin and a catalyst system comprising a supported catalyst-component comprising an alumoxane and at least two metallocenes containing the same transition metal and selected from mono, di, and tri-cyclopentadienyls and substituted cyclopentadienyls of a transition metal and wherein at least one of the metallocenes is bridged and at least one of the metallocenes is unbridged.

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