Acid-base proton conducting polymer blend membrane

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United States of America Patent

PATENT NO 7534515
APP PUB NO 20030219640A1
SERIAL NO

10351257

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Abstract

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An acid-base proton conducting polymer blend membrane is provided. The acid-base proton conducting polymer blend membrane comprises a first acidic polymer having acidic subunits, a second basic polymer having basic subunits, and a third polymer containing one or more functional units for improving membrane conductivity, flexibility, water remaining ability, dimension stability, and methanol crossover. In one embodiment, the acid-base polymer blend membrane of the present invention comprises a first acidic polymer having acidic subunits, a second basic polymer having basic subunits, wherein at least one of the first acidic and second basic polymer comprises one or more functional units to improve the properties of the membrane. The functional units include hydrophilic units, methanol blocking units, methanol blocking units, dimensional stabilizer units, and flexible units.

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Patent Owner(s)

Patent OwnerAddress
POLYFUEL INC333 RAVENSWOOD AVENUE MENLO PARK CA 94025

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cao, Shuguang Mountain View , US 14 199
Nam, Kiehyun Palo Alto , US 3 34
Olmeijer, David San Francisco , US 27 157
Servaites, Jon San Francisco , US 1 32
Wang, Ying Milpitas , US 968 7243
Xu, Helen Sunnyvale , US 6 79

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