Polymerization of olefins

US6586550B2 · kind B2 · utility

Assignee

• E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

• Patricia Metzger Cotts · Wilmington, US
• William H. Tuminello · Newark, US
• Lin Wang · Hockessin, US
• Joel David Citron · Wilmington, US

Key dates

• Filing date: Jul 9, 2001
• Grant date: Jul 1, 2003
• Expiry date: Jul 9, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2410/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Polyolefins made preferably only from ethylene using a selected ethylene oligomerization catalyst to form &agr;-olefins and a polymerization catalyst which can copolymerize ethylene and &agr;-olefins produces a novel polymer which advantageous rheological properties.