Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1980-07-01
1982-04-20
Garvin, Patrick
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252429C, 526114, 526116, 526119, C08F 464
Patent
active
043258352
ABSTRACT:
A component for an olefin polymerization 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 organometallic compound of general formula R.sub.m MX.sub.p wherein M is a metal of Groups IA, IIA, IIB, IIIB, 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 0 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 copolymerization of ethylene with an alpha-olefin monomer such as butene-1 in a fluidized bed reactor.
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Hartshorn Angus J.
Jones Eric
Garvin Patrick
Imperial Chemical Industries Limited
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