Fluorinated ionomers and their uses

US6025092A · kind A · utility

Assignee

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

Inventors

• Christopher Marc Doyle · Hockessin, US
• William B. Farnham · Hockessin, US
• Andrew Edward Feiring · Wilmington, US
• Peter A. Morken · Wilmington, US
• Mark Gerrit Roelofs · Earleville, US

Key dates

• Filing date: Feb 13, 1998
• Grant date: Feb 15, 2000
• Expiry date: Feb 13, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/50
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

This invention concerns substantially fluorinated, but not perfluorinated, ionomers consisting of a polyethylene backbone having pendant groups of fluoroalkoxy sulfonic acids and metal salts thereof. Such ionomers are useful for electrochemical applications.