Process for producing polymers or copolymers of olefins...

Details Process for producing polymers or copolymers of olefins... Process for producing polymers or copolymers of olefins...

C - Chemistry, Metallurgy

08

F

402/419, 402/434

C08F 10/02 (2006.01) C08F 4/64 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1089600

ABSTRACT OF THE DISCLOSURE The invention is a process for producing a polymer or copolymer of an olefin containing at least 3 carbon atoms which comprises polymerizing or copolymerizing at least one olefin containing at least 3 carbon atoms, or copo- lymerizing the olefin with up to 10 mole% of ethylene and/or diolefin, in the presence of a catalyst composed of (A) a magnesium-containing solid titanium composition and (B) an organomatallic compound of a metal of Groups I to III of the periodic table; characterized in that the solid titanium composition organo- a composition formed by contacting (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, (ii) an organic acid ester, and (iii) a titanium compound in the absence of mechanical pulverization. The product is a highly stereoregular polymer in particulate form and having a relatively large particle diameter. The relatively large particle diameter renders the product suitable for transport as a slurry in pipes without clog- ging.

279660

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