Equistar Chemicals, LP

Everett O Lewis

Bradley P Etherton

Mark P Mack

Jean A Merrick-Mack

Sandor M Nagy

Charles S Holland

Barbara M Tsuie

Leonard V Cribbs

Linda N Winslow

Philip J Garrison

Edward S Vargas

Natalia Nagy

Paula L Nygard

James Ronald Clark

A slurry process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of an &#x3b1;-olefin, hydrogen, and a catalyst comprising an activator and a supported, dimethylsilyl-bridged bis(indenoindolyl)zirconium complex. The process has high catalyst activity and produces polyethylene having a broad molecular weight distribution.

Olefin polymerization process

An ethylene polymerization process is disclosed. Ethylene is polymerized in two slurry reaction zones with a C-Calpha-olefin in the presence of a single-site catalyst capable of making a high molecular weight polyolefin. The process yields medium density and linear low density polyethylene having a bimodal molecular weight distribution and a melt index from about 0.10 to about 0.80. Films from the polyethylene have superior impact properties.

Polyethylene process

Growing community of inventors

Lake Jackson, TX, United States of America

Everett O Lewis