Process for producing a catalyst system, process for the (co)polymerization of olefins and (co)polymers of at least one olefin.

摘要

Process for the preparation of the catalyst system, according to which a mixture is prepared of a halogenated neutral metallocene derived from a transition metal chosen from groups IIIB, IVB, VB and VIB of the Periodic Table and of an organoaluminium compound, and an ionising agent is added thereto. (Co)polymerisation process according to which a mixture of a halogenated neutral metallocene as defined above and of an organoaluminium compound is prepared and the olefin is brought into contact with this mixture and an ionising agent is added thereto.