Catalyst compositions for use in the production of linear low density polyethylene (LLDPE) resin products

摘要

The present invention relates to a catalyst for forming linear low density polyethylene having two types of molecular weight distributions, specifically high molecular weight fractions,;The catalyst is prepared by bringing a carrier and an organomagnesium compound into contact with each other to bring magnesium into the carrier and then bringing the carrier containing magnesium into contact with a silicon compound and then with a transition metal source to form an intermediate containing the transition metal Treating the catalyst precursor with dimethyl aluminum chloride to form a catalyst precursor, and reacting the catalyst precursor with dimethyl aluminum chloride.