Nova Chemicals (international) S.a.

University of Alberta

Jason Roy Kearns

Peter Phung Minh Hoang

Dusan Jeremic

Nai-Hong Li

Robert D Donaldson

Charles Russell

Sieghard E Wanke

Iain McLaren Coulter

David T Lynch

Functional polymers containing hydroxyl groups as supports for use with catalysts can increase the activity of these catalysts which results in improved ethylene polymerization. The present invention seeks to provide catalysts with improved activity by incorporating 2-hydroxyethyl methacrylate (HEMA) into the support of the catalyst.

Functional organic particles for catalysts supports

Single site catalysts which contain a transition metal, a cyclopentadienyl may be activated with alumoxanes in the gas, solution or group-containing ligand, and a phosphinimine ligand slurry phase polymerization of olefin. Alumoxanes contain residual aluminum alkyls which may poison the catalysts. The residual aluminum alkyls may be bound and/or removed from the alumoxanes by treatment with carbohydrates such as cellulose, starch or sugar.

Sweet MAO

Functional organic particles for catalyst supports

Aluminoxanes are used as activators for the gas, solution or slurry phase polymerization of olefins in the presence of single site catalysts. Aluminoxanes contain residual aluminum alkyls which may poison the catalysts. The residual aluminum alkyls may be bound an/or removed from the aluminoxanes by treatment with carbohydrates such as cellulose, starch or sugar.

&ldquo;Sweet&rdquo; MAO

Growing community of inventors

Calgary, Canada

Jason Roy Kearns