Polymerization catalyst, process for preparing and use for...

Details Polymerization catalyst, process for preparing and use for... Polymerization catalyst, process for preparing and use for...

C - Chemistry, Metallurgy

08

F

252/109, 402/613

C08F 2/34 (2006.01) C08F 4/64 (2006.01) C08F 110/02 (2006.01) C08F 210/02 (2006.01)

Patent

CA 1152696

ABSTRACT OF THE DISCLOSURE A catalyst formed from selected organo aluminum compounds and s precursor composition of the formula MgmTil(OR)nXp[ED)q wherein ED is a selected electron donor compound m is ?0.5 to ? 56 n is 0 or 1 p is ?6 to ? 116 q is ?2 to ? 85 R is a C1 to C14, aliphatic or aromatic hydrocarbon radical, or COR' wherein R' is 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 diluted with an inert carrier material; A process for preparing such catalyst; A process for using said catalyst to readily prepare ethylene hompolymer having a density of about ?0.958 to ? 0.972 and a melt flow ratio of ?22 to ?32 in a low pressure gas phase process at a productivity of ?50,000 pounds of polymer per pound of Tl. Novel polymers and molded articles sre prepared.

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