Process for producing .alpha.-olefin polymers

Details Process for producing .alpha.-olefin polymers Process for producing .alpha.-olefin polymers

C - Chemistry, Metallurgy

08

F

402/613, 402/644

C08F 2/02 (2006.01) C08F 2/34 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1164600

ABSTRACT OF THE DISCLOSURE A process for producing .alpha.-olefin polymers having high crystallinity and good particle form, with a high yield is provided. The polymerization therefor is carried out in the presence of a preactivated catalyst suitable particularly to gas phase polymerization or gas phase polymerization following slurry or bulk polymerization. The catalyst is prepared by reacting a reduction solid prepared by reducing TiC?4 with an organoaluminum compound, with an electron donor and an electron acceptor to obtain a solid product, and combining this solid product with an organoaluminum compound, an .alpha.-olefin and a reaction product of an organoaluminum compound with an electron donor.

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