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Bridged metallocenes for olefin copolymerization

  • US 6,528,670 B1
  • Filed: 10/22/1999
  • Issued: 03/04/2003
  • Est. Priority Date: 10/23/1998
  • Status: Expired due to Term
First Claim
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1. A Group 4 organometallic compound comprising two ancillary monanionic ligands, each of which independently may be substituted or unsubstituted, wherein the ligands are bonded by a covalent bridge containing a substituted single Group 14 atom, the substitution on said Group 14 atom comprising aryl groups at least one of which contains at least one hydrocarbylsilyl substituent group.

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