Olefin polymerization catalyst material and process for its preparation
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United States of America Patent
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Jan 14, 2003
Issued Date -
N/A
app pub date -
Apr 21, 2000
filing date -
Oct 23, 1997
priority date (Note) -
Expired
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Abstract
A process for the preparation of a catalyst material and the resultant catalyst material. The process comprises the steps of: (a) treating a particulate support material with an alkylating agent; (b) contacting the alkylating agent treated support material with a procatalyst; optionally (c) contacting the support material with an ionic catalyst activator, and optionally (d) recovering the catalyst-carrying support material. The process allows the simple and effective alkylation of procatalysts, such as metallocene procatalysts. The procatalyst comprises at least one triaza containing ligand.
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