Supported polyolefin catalyst components and methods of...

Details Supported polyolefin catalyst components and methods of... Supported polyolefin catalyst components and methods of...

C - Chemistry, Metallurgy

08

F

252/93.A

C08F 4/64 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1262344

Abstract of the Disclosure A highly active catalyst suitable for the polymerization of olefins and its use are disclosed, said catalyst being prepared by (1) co-comminuting an aluminum halide; at least one electron donor; a Group IVB-VIB transition metal compound; and a support base selected from the group consisting of the Group IIA and IIIA salts and the salts of the multivalent metals of the first transition series with the exception of copper to produce a coground solid; (2) extracting said coground solid with an organic liquid; and (3) separating the solid from the liquid under such conditions that at least 5 weight percent of the aluminum in the coground solid is removed.

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