Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
Reexamination Certificate
2011-03-08
2011-03-08
Ruddock, Ula C (Department: 1729)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Process or means for control of operation
C008S647000, C428S032520, C428S221000
Reexamination Certificate
active
07901824
ABSTRACT:
Disclosed is a colorant treated ion exchange resin comprising at least 15% of exchangeable groups comprising at least one of an ion, a Lewis acid, or a Lewis base resulting from a colorant having a pKaor pKbof greater than 5 in an aqueous solution at 25° C., based on the total number of exchangeable groups. Also disclosed are heat transfer systems, assemblies, fuel cell systems and methods of maintaining a conductivity of less than 200 μS/cm in a heat transfer fluid that employ the disclosed colorant treated ion exchange resins. Finally, a method of making the disclosed colorant treated ion exchange resins is provided.
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Gershun Aleksei V.
Marinho Filipe
Woyciesjes Peter
Yang Bo
Cantor & Colburn LLP
Honeywell International , Inc.
Ruddock Ula C
Yanchuk Stephen
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