Process for the preparation of catalyst systems for the polymerization and copolymerization of ethylene with ultra-high molecular weight ethylene homopolymers and copolymers

摘要

The reaction of the dialkylmagnesium compound with a halogenating agent, a titanium compound and an electron donor compound is carried out in the polymerization and copolymerization of ethylene with an organoaluminum compound in the presence of an ultrahigh molecular weight ethylene having an average particle diameter of 50 to 200 μm and a viscosity of more than 2000 cm ³ / g Homopolymers and copolymers. The average particle diameter can be determined by the catalyst particle diameter and the catalyst production rate.