| 摘要 |
A process for polymerizing olefins by bringing olefins into contact with a transition metal catalyst and a cocatalyst, characterized in that the cocatalyst is a compound in accordance with formulawhereinX is Si, Ge, Sn or Pb, andR is hydrogen or an alkyl, aryl, arylalkyl or alkylaryl group and wherein at least one R group is not hydrogen and contains one or more halogen atomsor the cocatalyst is a compound in accordance with formulawherein X is Si, Ge, Sn or Pb,R is hydrogen or an alkyl, aryl, arylalkyl or alkylaryl group and wherein at least one R group is hydrogen and contains one or more halogen atoms, andY is a cation.
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