Low equivalent weight ionomer

Details Low equivalent weight ionomer Low equivalent weight ionomer

2006-04-04

2006-04-04

Wu, David W. (Department: 1713)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C442S171000, C526S247000, C526S242000, C526S213000, C204S296000, C429S006000

Reexamination Certificate

active

07022428

ABSTRACT:
An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight; below 950, preferably between 625 and 850, and most preferably between about 700 and about 800; and (2) high conductivity, (greater than 0.15 S/cm). In an alternative embodiment, the ionomer has (1) low equivalent weight; below 950, preferably between 625 and 850, and most preferably between about 700 and about 800; and (2) acceptably low hydration, (less than about 75 weight percent). These ionomers are adapted to be processed into thin films that have acceptable physical stability. They are thus extremely well-suited for low humidity or high temperature fuel cell applications.

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