Impregnated polymerization catalyst, process for preparing...

Details Impregnated polymerization catalyst, process for preparing... Impregnated polymerization catalyst, process for preparing...

C - Chemistry, Metallurgy

08

F

252/109, 402/613

C08F 4/64 (2006.01) C08F 10/00 (2006.01) C08F 210/16 (2006.01)

Patent

CA 1121328

ABSTRACT OF THE DISCLOSURE A catalyst formed from selected organo aluminum compounds and a precursor composition of the formula MgmTi1(OR)nXp[ED]q wherein ED is a selected electron donor compound m is ? 0.5 to ? 56 n is 0, 1 or 2 p is ? 2 to ? 116 q is ? 2 to ? 85 R is a C1 to C14 aliphatic or aromatic hydrocarbon radical, or COR' wherein R' is a C1 to C14 aliphatic or aromatic hydrocarbon radical, and X is selected from the group consisting of Cl, Br, I or mixtures thereof, which catalyst is in particulate form and impregnated is a porous inert carrier material. A process for preparing such catalyst. A process for using said catalyst to readily prepare ethylene copolymers having a density of about ?0.91 to ? 0.94 and a melt flow ratio of ? 22 to ?32 in a low pressure gas phgse process at a productivity of ? 50,000 pounds of polymer per pound of Ti. Novel polymers and molded article are prepared.

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