SPRÜHGETROCKNETER POLYMERISATIONSKATALYSATOR UND POLYMERISATIONSVERFAHREN UNTER SEINER VERWENDUNG

摘要

A method of making a spray-dried composition using a solution or mixture comprising the reaction product of a magnesium halide, a solvent, an electron donor compound, and a transition metal compound and an inert filler comprising substantially spherical particles having an average particle size ranging from 1 mum to about 12 mum.