EP0032309A3 — Production of catalyst component, catalyst and use thereof

USPTO Abstract

A catalyst component is a transition metal composition which is obtained by reacting together an inert particulate material, an organic magnesium compound, a halogen-­ containing compound such as carbon tetrachloride silicon tetrachloride or boron trichloride and a specified transition metal compound such as VOCl₃, bis(n-butoxy) titanium dich­ loride or zirconium tetrabenzyl. The catalyst component obtained can be used, together with an organic metal com­ pound, to give an olefin polymerisation catalyst. The catalyst can be used to effect the polymerisation of olefin monomers, for example, the copolymerisation of ethylene with an alpha-olefin monomer such as butene-1 in a fluidised bed reactor.