PROCESS FOR MANUFACTURE OF HIGH BULK DENSITY POWDERS OF OLEFIN POLYMERS

摘要

High bulk density powders of normally solid, olefin polymers such as polyethylene are provided by polymerizing the olefin under low pressures ranging from about 5 to about 30 atmospheres in the presence of trialkyl aluminum and a titanium-containing catalyst component which has been prepared from titanium tetrachloride and diethyl aluminum monochloride. High bulk density powders prepared in accordance with the present invention can be employed directly in extrusion and other fabrication operations.