Patent Number: 6,294,625

Title: Catalyst system of enhanced productivity and its use in polymerization process

Abstract: A process for polymerizing olefins, diolefins, cyclic olefins or acetylenically unsaturated monomers, either alone or in combination with each other or with other polymerizable monomers with a catalyst system comprising a Group 4 transition metal cation having bonded thereto (1) a mono cyclopentadienyl ligand or polycyclic derivative thereof, (2) a Group 15 or 16 heteroatom ligand, said mono cyclopentadienyl ligand or polycyclic derivative and said heteroatom ligand being covalently bound and bridged, and (3) at least one other ligand; (b) a compatible non-coordinating anion; and a (c) a Group 13 element, hydrolyzable Lewis acid compound is disclosed.

Inventors: Hlatky; George G. (Houston, TX), Turner; Howard William (Houston, TX), Canich; Jo Ann Marie (Webster, TX)

Assignee: ExxonMobil Chemical Patents Inc.

International Classification: C08F 10/00 (20060101); C08F 4/659 (20060101); C08F 110/00 (20060101); C08F 110/02 (20060101); C08F 210/00 (20060101); C08F 4/6592 (20060101); C08F 4/00 (20060101); C08F 210/16 (20060101); C08F 004/44 ()

Expiration Date: 09/25/2018