SUPPORTED OLEFIN POLYMERIZATION CATALYST

摘要

A solid-hydrocarbon insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics, comprises the product formed by a) complexing a magnesium alkyl composition with an ortho disubstituted hindered aromatic acid ester; b) reacting the resulting complex with a compatible precipitation agent to form a solid component; and c) reacting the resulting solid with a titanium(IV) compound and an electron donor compound in a suitable diluent.