NOVEL METALLOCENE CATALYST COMPOSITIONS AND PROCESS FOR PREPARING POLYOLEFINES

摘要

PURPOSE: A metallocene-supported catalyst composition is provided to remarkably improve catalytic activity at polymerization of slurry or gas-phase olefin even in low metallocene metal components in a carrier. CONSTITUTION: A metallocene-supported catalyst composition is manufacturing by dipping a family 4-transition metal compound into an inorganic organic porous carrier treated by the reactant of an aryl boronic acid, and alkylauminoxane. The comprised amount of the family 4-trainsition metal compound is 0.01-20 weight% based on total weight of the metallocene-supported catalyst composition. The reacting ratio aryl boronic acid and the alkylauminoxane is 1:5-1:1000 based on molar ratio of boron : aluminum.