| 摘要 |
A process for the preparation of polyolefins from one or more olefinic monomers is described in which the olefin arc combined with a catalyst complex derived from a catalyst compound having a bis-haloaryl-Group 13 element substituted Group 13-15 atom-containing bridging element, and a co-catalyst activator a tri-n-alkyl aluminum compound or aluminoxy derivative thereof. The process is particularly useful with bisarylboron substituted silicon-bridged metallocenes under gas phase, slurry, solution or supercritical high pressure coordination polymerization conditions for polyolefins derived from olefinic monomers selected from the group consisting of ethylene, (alpha-olefins, cyclic olefins, non-conjugated diolefins, vinyl aromatic olefins, and geminally disubstituted olefins.
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