Polymerization catalyst and method

Details Polymerization catalyst and method Polymerization catalyst and method

C - Chemistry, Metallurgy

08

F

402/637, 402/643

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

Patent

CA 1137965

ABSTRACT OF THE DISCLOSURE An olefin polymerization and copolymerization catalyst active in the presence of an alkyl aluminum cocatalyst is prepared by mixing, in the presence of a solvent, particles of a silica or alumina material having reactive surface groups, and a complex of the general formula (MgR2)m(AlR?)n where R and R' are alkyl groups and m/n is between about 0.5 and 10, inclusive, to form a hydrocarbon insoluble reaction product which is then mixed, in the presence of a sol- vent, with a titanium, vanadium or zirconium halide, oxyhalide or alkoxyhalide, followed by evaporation of the solvent.

351443

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