Process for polymerization of .alpha.-olefin

Details Process for polymerization of .alpha.-olefin Process for polymerization of .alpha.-olefin

C - Chemistry, Metallurgy

08

F

402/641

C08F 10/00 (2006.01) C08F 36/06 (2006.01)

Patent

CA 1165050

ABSTRACT OF THE DISCLOSURE A process for producing poly-.alpha.-olefin having stereospecific property which comprises polymerizing .alpha.-olefin by the use of a catalyst comprising (A) a reaction product of a maynesium compound and a titanium compound, (B) an organometallic com- pound, and (C) an electron donor compound, wherein the reaction product used as Component (A) is a solid product which is prepared by reacting a magnesium dialkoxide represented by the general formula: Mg(OR1)2 with an electron donor compound, and then reacting the product obtained two or more times with a halogen-containing tetravalent titanium compound represented by the general formula: Ti(OR2)nX14-n. In accordance with the process of the present invention, polymers produced have high stereospecific property and high apparent density, and catalysts used have very high activity for the polymerization of .alpha.-olefin.

386167

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