.alpha.-olefin-alkenylsilane copolymer and method for...

Details .alpha.-olefin-alkenylsilane copolymer and method for... .alpha.-olefin-alkenylsilane copolymer and method for...

C - Chemistry, Metallurgy

08

F

402/8

C08F 230/08 (2006.01) C08F 210/04 (2006.01) C08F 210/06 (2006.01) C08F 210/08 (2006.01) C08F 210/14 (2006.01)

Patent

CA 2030946

An .alpha.-olefin-alkenylsilane copolymer having syndiotactic regularity in which the side chains in the .alpha.-olefin unit substantially have the syndiotactic regularity, the content of alkenylsilane units is from 3 to 35 mol %, and the intrinsic viscosity measured in a tetralin solution at 135°C is 0.01 or higher. A method for preparing the above copolymer comprises the step of copolymerizing an .alpha.-olefin having 3 to 25 carbon atoms with an alkenylsilane in the presence of a catalyst comprising an aluminoxane and a transition metal compound contain- ing a cyclopentadiene group or its derivative as a ligand.

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