Solid catalyst component for use in polymerization of a-olefins

Details Solid catalyst component for use in polymerization of a-olefins Solid catalyst component for use in polymerization of a-olefins

C - Chemistry, Metallurgy

08

F

252/109, 402/566

C08F 2/02 (2006.01) C08F 4/642 (2006.01) C08F 10/00 (2006.01)

Patent

CA 2037609

A solid-catalyst component for use in the polymerization of .alpha.-olefins obtained by reducing a titanium compound represented by the following general formula: Ti(OR1)n x4-n wherein R1 represents a hydrocarbon group having 1 to 20 carbon atoms, X represents a halogen atom and n represents a number satisfying 0 < n ~ 4, with an organomagnesium compound in the presence of an organic silicon compound having Si-O bond to produce a solid product, treating the solid product with an ester compound, treating the ester-treated solid product with a mixture of an ether compound and titanium tetrachloride or with a mixture of an ether compound, titanium tetrachloride and an ester compound to obtain a trivalent titanium compound-containing solid catalyst precursor, and treating the solid catalyst precursor with a small quantity of an olefin in the presence of an organoaluminum compound to obtain a solid catalyst component for use in the polymerization of .alpha.-olefins.

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