Process for preparing polyolefins

Details Process for preparing polyolefins Process for preparing polyolefins

C - Chemistry, Metallurgy

08

F

402/635, 402/640

C08F 4/02 (2006.01) C08F 4/62 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1039448

ABSTRACT OF THE DISCLOSURE An improved catalyst for the polymerization or copolymerization of olefins,an improved process for preparing such catalyst, and a pro- cess for preparing polyolefins is provided involving polymerizing or copolymerizing olefins using such catalyst. A process is provided for preparing a catalyst containing at least one compound selected from the group consisting of a titanium compound and a vanadium compound supported on a solid carrier, and an organometallic compound. The inventive con- cept resides in using, as the solid carrier, a product obtained by treating at least one member selected from the group consisting of an oxide of Group II - IV metals of the Periodic Table and a double oxide of such oxide and another oxide, which other oxide may be another oxide of Group II - IV metals of the Periodic Table or may be an oxide of other Group metals of the same Table with SO3.

216552

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