Catalyst composition for polymerizing alpha-olefin polymers of narrow molecular weight distribution

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...

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Bibliographic Details
Main Author NOWLIN, THOMAS EDWARD
Format Patent
LanguageEnglish
French
German
Published 19.07.1989
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary: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 C2-C10 alpha-olefins and exhibits very good higher (C3-C10) alpha-olefins incorporation properties.
Bibliography:Application Number: EP19890300193