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Title: Sterically shielded diboron-containing metallocene olefin polymerization catalysts

A non-coordinating anion, preferably containing a sterically shielded diboron hydride, if combined with a cyclopenta-dienyl-substituted metallocene cation component, such as a zirconocene metallocene, is a useful olefin polymerization catalyst component. The anion preferably has the formula ##STR1## where R is branched lower alkyl, such as t-butyl.
Inventors:
 [1];  [2];  [1]
  1. (Evanston, IL)
  2. (Chicago, IL)
Issue Date:
OSTI Identifier:
870055
Assignee:
Northwestern University (Evanston, IL) CHO
Patent Number(s):
US 5447895
Application Number:
08/209,668
Contract Number:
FG02-86ER13511
Research Org:
Northwestern University
Country of Publication:
United States
Language:
English
Subject:
sterically; shielded; diboron-containing; metallocene; olefin; polymerization; catalysts; non-coordinating; anion; preferably; containing; diboron; hydride; combined; cyclopenta-dienyl-substituted; cation; component; zirconocene; useful; catalyst; formula; str1; branched; alkyl; t-butyl; boron hydride; preferably contain; polymerization catalysts; olefin polymerization; containing metal; polymerization catalyst; catalyst component; preferably containing; metallocene olefin; sterically shielded; shielded diboron; non-coordinating anion; olefin polymer; cation component; coordinating anion; /502/526/

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