Patent Number: 6,252,022

Title: Molecular weight control in olefin polymerization

Abstract: The molecular weight of polyolefins produced using iron or cobalt complexes of 2,6-pyridinecarboxaldehyde diimines or a 2,6-diacylpyridine diimines as polymerization catalysts may be lowered by carrying out the polymerization in the presence of hydrogen.

Inventors: Arthur; Samuel David (Wilmington, DE), Citron; Joel David (Wilmington, DE)

Assignee: E. I. du Pont de Nemours and Company

International Classification: C08F 10/00 (20060101); C08F 004/80 ()

Expiration Date: 06/26/2018