| 摘要 |
<p>The present invention relates to a process for polymerizing at least one olefin with the aid of a catalyst containing at least one organometallic compound of a transition metal possessing at least one ligand of cyclopentadienyl or substituted cyclopentadienyl type. The polymerization is carried out in gas phase or in suspension in a liquid polymerization medium selected amongst saturated or unsaturated hydrocarbons, in the presence of hydrogen and a polymlerization component selected amongst halogenated hydrocarbons. The combined use of hydrogen and halogenated hydrocarbon in such a polymerization process simultaneously improves the catalyst activity and the molecular weight control of the polymer.</p> |
