Polymerization catalyst and method

Details Polymerization catalyst and method Polymerization catalyst and method

C - Chemistry, Metallurgy

08

F

402/638, 402/643

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

Patent

CA 1172621

Abstract 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 treated with a fluorine compound and with a compound of magnesiumhydrocarbyl or a complex of the general formula (MgR2)m(AlR?)n where R and R' are alkyl or aryl groups and m/n is between about 0.5 and 10, inclusive, to form a hydro- carbon insoluble reaction product which is then mixed, in the presence of a solvent, with a titanium, vana- dium or zirconium halide, oxyhalide or alkoxyhalide, followed by separation of the solvent. The disclosure also includes a method of making such catalysts and a method of making polymers of one or more 1-olefi? by the use of these catalysts under polymerizing con- ditions.

395433

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