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Method for making polyolefins

  • US 20030195306A1
  • Filed: 04/16/2002
  • Published: 10/16/2003
  • Est. Priority Date: 04/16/2002
  • Status: Active Grant
First Claim
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1. A method which comprises copolymerizing ethylene and a 1-olefin in the presence of a catalyst system comprising (a) an aluminum-containing activator;

  • (b) a bridged, indenoindolyl Group 3-10 transition metal complex; and

    (c) a treated silica support, to produce a linear low density or plastomeric ethylene copolymer having a density less than 0.930 g/cm3, wherein the catalyst system has an aluminum;

    transition metal [Al;

    M] mole ratio less than 500.

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