Olefin polymerization catalyst

Details Olefin polymerization catalyst Olefin polymerization catalyst

C - Chemistry, Metallurgy

08

F

252/52.F

C08F 4/60 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1155829

ABSTRACT A component for an olefin polymerisation catalyst which is the product of treating a particulate support material with (a) an organo-magnesium compound, (b) an aluminium compound e.g. ethyl aluminium dichloride, (c) an organo- metallic compound of general formula RmMXp wherein M is a metal of Groups IA, IIA, IIB, IIB, IVA, VA or VIA of the Periodic Table, R is a hydrocarbyl or substituted hydrocarbyl group, X is a singly charged anionic ligand or a monodentate neutral ligand, m is an integer up to the highest valency of the metal M and p is O or an integer up to 2 less than the valency of the metal M, e.g. zirconium tetrabenzyl, and (d) at least one transition metal compound of Groups IVA, VA or VIA, e.g. titanium tetrachloride. The catalyst component can be used to effect copolymerisation of ethylene with an alpha-olefin monomer such as butene-1 in a fluidised bed reactor.

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