Polyvinylidene fluoride ionomers containing pendant fluoroalkylsulfonyl imide or fluoroalkylsulfonyl methide groups

US6667377B2 · kind B2 · utility

Assignee

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

Inventors

• Andrew Edward Feiring · Wilmington, US
• Christopher Marc Doyle · Hockessin, US
• Mark Gerrit Roelofs · Earleville, US
• William B. Farnham · Hockessin, US
• Paul Gregory Bekiarian · Claymont, US
• Hanne Anna Katharina Blau · Wilmington, US

Key dates

• Filing date: May 10, 2001
• Grant date: Dec 23, 2003
• Expiry date: May 10, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F214/222
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

This invention concerns ionomers comprising monomer units of vinylidene fluoride and monomer units of perfluorovinyl ethers having pendant groups containing fluoroalkyl sulfonyl methide or fluoroalkyl sulfonyl imide derivatives and univalent metal salts thereof, and with the uses of said ionomers in eledrochemical applications, electrochemical capacitors and modified electrodes.