Polymerization catalyst and method

Details Polymerization catalyst and method Polymerization catalyst and method

C - Chemistry, Metallurgy

08

F

402/632, 402/636

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

Patent

CA 1172622

Abstract A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins. The catalyst is prepared by reacting certain multi- functional organic silicon compounds (silanes) with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the silicon compound reacts with these surface hydroxyl groups, followed by reacting the product of this with a halide or alkoxide of a Group IVB or VB transition metal such as titanium, vanadium, zirconium or mixtures of these and finally reacting this product with a Group IIA organometallic compound or compounds such as mag- nesium and calcium. The Group IIA organometallic compound can also be added before these transition metal compounds.

398475

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