Polymerisation process

Details Polymerisation process Polymerisation process

C - Chemistry, Metallurgy

08

F

402/418, 402/642

C08F 4/64 (2006.01) C08F 10/00 (2006.01) C08F 210/16 (2006.01)

Patent

CA 1056999

ABSTRACT FOR CANADA Ethylene is copolymerised with one or more mono .alpha.-olefins, especially butene and/or hexene, using as catalyst a Group IVA metal hydrocarbyl compound supported on particulate alumina, the purity ratio (i.e. the molar ratio of Group IVA metal to Group I to III metal) of the said compound being at least 100/1 and, preferably, 500/1. By using these very pure compounds, especially in the case of zirconium tetrabenzyl, the incorporation of co- monomer in the copolymer product may be enhanced.

221873

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