Olefin polymerization catalyst

Details Olefin polymerization catalyst Olefin polymerization catalyst

C - Chemistry, Metallurgy

08

F

252/109

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

Patent

CA 1174226

Abstract of the Invention In a method to produce an alpha-olefin poly- merization catalyst comprising reducing titanium tetrachloride with an aluminum alkyl, contacting the resulting reduced solid with a pretreatment amount of alpha-olefin monomer under polymerization conditions and reacting the resulting product with a Lewis base complexing agent and additional titanium tetrachloride, the improvement comprising reacting the Lewis base complexing agent in a molar ratio to the reduced titanium compound of greater than 1.15 to 1.

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