Low equivalent weight ionomer
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United States of America Patent
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Aug 25, 2009
Grant Date -
Oct 26, 2006
app pub date -
Jun 21, 2006
filing date -
Dec 6, 2001
priority date (Note) -
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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 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the invention is an ionomer having (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) acceptably low hydration (less than about 120 weight percent). These ionomers are capable of being processed into thin film and are extremely well-suited for low humidity or high temperature fuel cell applications.
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