Process for producing polyethylenes

Details Process for producing polyethylenes Process for producing polyethylenes

C - Chemistry, Metallurgy

08

F

402/633

C08F 10/00 (2006.01) C08F 10/02 (2006.01) C08F 10/04 (2006.01) C08F 10/14 (2006.01)

Patent

CA 2000567

ABSTRACT OF THE DISCLOSURE A process for producing polyethylene is disclosed in which ethylene is polymerized in the presence of a composite catalyst. The catalyst is made up of a solid catalyst component typified by a selected chromium compound, a modified aluminum compound typified by a trialkylaluminum and an R1nA1(OR2)3-n compound where Rl and R2 are represented by selected hydrocarbon groups and n by 0 ? n ? 3. The polymer has improved melt index, flow parameter and melt tension characteristics.

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