Olefin polymerization catalyst

Details Olefin polymerization catalyst Olefin polymerization catalyst

C - Chemistry, Metallurgy

08

F

252/105

C08F 10/00 (2006.01) C08F 4/646 (2006.01)

Patent

CA 1293242

Abstract of the Disclosure A solid hydrocarbon-insoluble, alpha-olefin polymeri- zation catalyst component with superior activity, stereo- specificity and morphology characteristics comprises the product formed by A) forming a solution of a magnesium- containing species from a magnesium carbonate or a magne- sium carboxylate; B) precipitating solid particles from such magnesium-containing solution by treatment with a transition metal halide and an organosilane; C) reprecipi- tating such solid particles from a mixture containing a cyclic ether; and D) treating the reprecipitated particles with a transition metal compound and an electron donor.

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