Process for producing polypropylene

Details Process for producing polypropylene Process for producing polypropylene

C - Chemistry, Metallurgy

08

F

402/645

C08F 110/06 (2006.01) C08F 4/64 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1076300

PROCESS FOR PRODUCING POLYPROPYLENE ABSTRACT OF THE DISCLOSURE In a process for the polymerization of propylene, a polymer having improved mechanical properties can be obtained in high yields without forming a noticeable amount of an amor- phous polymer as a by-product by using a catalyst system comprising (a) a fine, granular form of titanium trichloride, (b) an organo-aluminum compound and (c) an organic carboxylate, the titanium trichloride being a finely granulated, purple solid obtained by precipitation from a homogeneous liquid mixture or solution of titanium trichloride and an ether in the presence of a Lewis acid.

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