Patent ID: 6482764
Filing Date: 2002-11-19
Classification: C08F

Abstract:
A method for producing a catalyst for polymerization of ethylene and for copolymerization of ethylene and an &agr;-olefin, comprising:reacting an organomagnesium compound having the formula MgPh2.nMgCl2.mR2O, wherein Ph=phenyl, n=0.37-0.7, m&gE;1, R is an alkyl radical having two to eight carbons, with carbon tetrachloride to form a magnesium-containing carrier, wherein the organomagnesium compound is a reaction product of metallic magnesium with chlorobenzene in the presence of an ether, the ether having the structure R2O, where R is an alkyl radical having two to eight carbons, wherein the carbon tetrachloride/Mg mole ratio is about 0.5 or more, and wherein the reaction is performed at a temperature of about âˆ’20-80Â° C., and treating the magnesium-containing carrier with a titanium alkoxyhalide.