Polymerization catalysts for producing polymers with low...

Details Polymerization catalysts for producing polymers with low... Polymerization catalysts for producing polymers with low...

C - Chemistry, Metallurgy

08

F

C08F 10/02 (2006.01) B01J 21/12 (2006.01) B01J 31/16 (2006.01) C08F 4/656 (2006.01)

Patent

CA 2569931

This invention relates to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene with bridging h5-cyclopentadienyl-type ligands, in combination with a cocatalyst and an activator-support. The compositions and methods disclosed herein provide ethylene polymers with low levels of long chain branching.

Compositions de catalyse, procédés et polymères acceptant un métallocène du groupe 4 comportant des ligands de pontage de type .eta.5-cyclopentadiényle, combinés à un cocatalyseur et à un support d'activation. Les compositions et les procédés offrent des polymères d'éthylène à faibles niveaux de ramification à chaîne longue.

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