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 polymerization 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.
本发明涉及一种使用至少一种含有至少一种
环戊二烯基或取代
环戊二烯基
配体的过渡
金属有机化合物催化剂聚合至少一种烯烃的方法。该聚合可以在气相或悬浮在选自饱和或不饱和烃类的液体聚合介质中进行,在
氢气和选自卤代烃类的聚合组分的存在下进行。在这种聚合过程中,同时使用
氢气和卤代烃类可以同时提高催化剂活性和聚合物的分子量控制。