PROCESS FOR THE PREPARATION OF (CO)POLYMERS OF ETHYLENE HAVING A BROAD MOLECULAR WEIGHT DISTRIBUTION

摘要

The present invention relates to a process for the preparation of homopolymers and copolymers of ethylene having a broad molecular weight distribution. The polymerisation is carried out in the presence of catalysts comprising the product of reaction between an alkyl-A1 compound and a solid catalytic component comprising a titanium compound supported on a magnesium halide in an active form, having a spherical morphology and particular surface and porosity characte-ristics.