Complexes of pyridldiimines with vanadium and other transition metals, and their use as olefin oligomerization and polymerization catalysts

US6458905B1 · kind B1 · utility

Assignee

• Phillips Petroleum Company · US

Inventors

• Roland Schmidt · Lakewood, US
• Ulrich Hammon · Mannheim, DE
• M. Bruce Welch · Bartlesville, US
• Helmut G. Alt · Bayreuth, DE
• Bryan E. Hauger · Claremore, US
• Ronald D. Knudsen · Bartlesville, US

Key dates

• Filing date: Aug 16, 2000
• Grant date: Oct 1, 2002
• Expiry date: Oct 19, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F210/16
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A polymerization process for polymerizing at least one olefin in the presence of a pyridyldiimine metal complex as a catalyst having one of the following structures: The metal M of the complex is a transition metal from Group 4b, 5b or 6b of the Periodic Table such as vanadium. The invention also relates to the use of these metal complexes as olefin polymerization or oligomerization catalysts, optionally in combination with metal alumoxane and similar catalyst activators.