Catalyst and method of preparation and use thereof for...

Details Catalyst and method of preparation and use thereof for... Catalyst and method of preparation and use thereof for...

C - Chemistry, Metallurgy

08

F

252/111, 402/641

C08F 18/00 (2006.01) C08F 2/34 (2006.01) C08F 4/64 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1243659

F-2739 CATALYST AND METHOD OF PREPARATION AND USE THEREOF FOR POLYMERIZING ALPHA-OLEFINS ABSTRACT OF THE DISCLOSURE A catalyst composition for polymerizing alpha-olefins is prepared by treating a carrier containing OH groups with an organomagnesium composition and contacting the thus-formed magnesium-containing carrier with a solution of a titanium (IV) alkoxide and a brominating and/or chlorinating agent. The adjustment of the molar ratio of the brominating and/or chlorinating agent to the titanium alkoxide yields catalysts which produce polymers of varying molecular weight distribution, as measured by the melt flow ratio (MFR) values. (5786H/0353H)

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