Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1988-01-14
1989-05-23
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502110, 502111, 502112, 502115, 526129, 526142, C08F 464
Patent
active
048331112
ABSTRACT:
A supported alpha-olefin polymerization catalyst composition is synthesized by reacting (1) a slurry of a solid catalyst carrier in a non-polar solvent, e.g., hexane, with a dialkyl organomagnesium composition; (2) contacting the slurry of step (1) with a hydroxyl group-containing compound, e.g., an alcohol; (3) contacting the slurry of step (2) with at least one transition metal compound; (4) contacting the slurry of step (3) with a halogenated alkyl aluminum compound, e.g., ethyl aluminum dichloride, and, (5) activating the product of step (5) with trimethylaluminum. The resulting catalyst composition is extremely active in polymerizing C.sub.2 -C.sub.10 alpha-olefins and exhibits very good higher (C.sub.3 -C.sub.10) alpha-olefins incorporation properties.
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Aksman Stanislaus
Garvin Patrick P.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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