Process for producing stereoregular polymers or copolymers...

Details Process for producing stereoregular polymers or copolymers... Process for producing stereoregular polymers or copolymers...

C - Chemistry, Metallurgy

08

F

402/419, 402/465

C08F 4/64 (2006.01) C08F 10/00 (2006.01) C08F 10/04 (2006.01)

Patent

CA 1092295

Abstract of the Disclosure The invention is a process for producing in high yield a highly stereoregular polymer or copolymer of an olefin containing at least 3 carbon atoms. Polymerization is carried out in the presence of a catalyst composed of (A) a magnesium-containing solid titanium catalyst component and (B) an organometallic compound of a metal of Groups I to III of the periodic table; characterized in that the solid titanium catalyst component (A) is a composi- tion formed by contacting (I) a mechanically co-pulverized product of (i) a halogen-containing magnesium organo-aromatic compound of the formula Mg(OR)nx2-n wherein R represents an aryl or aralkyl group and n is a positive number of 0 < n < 2 and (ii) an electron donor, with (II) a titanium compound in the liquid phase without mechanical pulverization.

287481

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