Patent · US Active

Ether nitrile co-polymers containing sulfonic acid groups for PEM application

US7645856B2 · kind B2 · utility

1Cited by

0References

16Claims

0Family size

Assignee

National Research Council of Canada · CA

Inventors

Yan Gao · Memphis, US
Michael D. Guiver · Ottawa, CA
Gilles P. Robertson · Gatineau, CA

Key dates

Filing date	Nov 18, 2005
Grant date	Jan 12, 2010
Priority date	—
Expiry date	May 2, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Ether nitrile co-polymers containing sulfonic acid groups, including wholly aromatic poly(aryl ether ether nitrile)s containing sulfonic acid groups (SPAEEN)s, and poly(phthalazinone ether ketone nitrile) co-polymers containing sulfonic acid groups (SPPEKN)s, intended for fuel cells applications as proton conducting membrane materials, were prepared.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.