Patent Number: 6,166,154

Title: Olefin polymerization catalyst composition having increased activity

Abstract: The invention relates to a process for the polymerization of olifins in the presence of an activated catalyst composition comprising a single site catalyst precursor and an activating cocatalyst, which comprises contacting outside of a polymerization reactor a single site catalyst precursor with an activating cocatalyst before, during, or after contacting the single site catalyst precursor with a weakly coordinating electron donor that does not substantially polymerize during either contacting.

Inventors: Oskam; John Henry (Somerset, NJ), Peterson; Thomas Henry (Charleston, WV), Schreck; David James (Cross Lanes, WV), Sishta; Purna Chand (Whitehouse, NJ), Wenzel; Timothy Todd (Charleston, WV), Whiteker; Gregory Todd (Charleston, WV), Williams; Clark Curtis (Charleston, WV)

Assignee: Union Carbide Chemicals & Plastics Technology Corporation

International Classification: C08F 10/00 (20060101); C08F 4/00 (20060101); C08F 4/6592 (20060101); C08F 210/00 (20060101); C08F 210/16 (20060101); C08F 004/42 ()

Expiration Date: 12/26/2017