Catalyst compositions and process for copolymerizing ethene...

Details Catalyst compositions and process for copolymerizing ethene... Catalyst compositions and process for copolymerizing ethene...

C - Chemistry, Metallurgy

07

F

252/63, 402/7.1,

C07F 9/50 (2006.01) B01J 31/18 (2006.01) B01J 31/24 (2006.01) C08F 210/02 (2006.01) C08G 67/02 (2006.01)

Patent

CA 1331019

A B S T R A C T NOVEL CATALYST COMPOSITIONS AND PROCESS FOR COPOLYMERIZING ETHENE AND CARBON MONOXIDE Novel catalyst compositions for copolymerizing ethene and carbon monoxide, characterized in that they comprise: a) a compound of a Group VIII metal chosen from palladium, cobalt and nickel, b) an anion of an acid with a pKa of less than 6, and c) a bidentate ligand of the general formula R1R2-M-R-M-R3R4, wherein M represents phosphorous, arsenic or antimony, R is a bivalent organic bridging group containing two or three carbon atoms in the bridge and R1, R2, R3 and R4 represent hydro- carbon groups which may or may not be substituted with polar groups, on the understanding that at least one hydrogen atom in at least one of the groups R1, R2, R3 and R4 is substituted with a polar substituent.

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