Patent · US Active

Sulfonated polyarylene compounds, membrane material made therefrom, method for the production thereof and use

US8163864B2 · kind B2 · utility

1Cited by

6References

34Claims

0Family size

Assignee

LEIBNIZ-INSTITUT FUER POLYMERFORSCHUNG DRESDEN E.V. · DE

Inventors

Dieter Lehmann · Stuttgart, DE
Jochen Meier-Haack · Dresden, DE
Claus Vogel · Schwabach, DE
Wladimir Butwilowski · Dresden, DE

Key dates

Filing date	Jul 13, 2007
Grant date	Apr 24, 2012
Priority date	—
Expiry date	Mar 24, 2028

Classification

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

Abstract

The invention relates to the field of polymer chemistry and relates to sulfonated polyarylene compounds such as can be used for example in ion exchange membranes in fuel cells, as well as a method for the production thereof and the use thereof. The object of the present invention is to disclose hydrolytically and thermally resistant sulfonated polyarylene compounds with a defined degree and position of sulfonation, from which membrane materials with an improved resistance to hydrolysis can be produced. The object is attained through sulfonated polyarylene compounds according to at least one of the general formulas (I)-(IV).

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