Polymers of substituted cyclopentenes

US6670433B2 · kind B2 · utility

Assignee

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

Inventors

• Stephan James McLain · Wilmington, US
• Elizabeth Forrester McCord · Hockessin, US
• Alison Margaret Anne Bennett · Wilmington, US
• Steven Dale Ittel · Wilmington, US
• Karl Jeffrey Sweetman · Wilmington, US
• Mark F. Teasley · Landenberg, US

Key dates

• Filing date: Apr 2, 2001
• Grant date: Dec 30, 2003
• Expiry date: Nov 12, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F132/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Substituted cyclopentenes, such as alkyl cyclopentenes, are polymerized by selected &agr;-imine complexes of nickel and palladium. The polymers are useful as molding resins or elastomers. Also disclosed herein are novel catalysts for the polymerization of cyclopentenes to form novel higher melting homopolycyclopentenes.