Compositions – Electrically conductive or emissive compositions
Reexamination Certificate
2003-05-23
2008-08-19
Kopec, Mark (Department: 1796)
Compositions
Electrically conductive or emissive compositions
51, 51
Reexamination Certificate
active
07413683
ABSTRACT:
A composition comprising particulate carbonaceous material and a sulfonated conducting polymer containing hetero atoms. The composition can further comprise a metal. Devices comprising the composition can be constructed including supported electrocatalysts, membrane electrode assemblies, and fuel cells. A method for preparing the composition comprises oxidatively polymerizing a monomer of a conducting polymer containing hetero atoms in the presence of a carbonaceous material and sulfonating the polymer or the monomer. The method grafts the sulfonated conducting polymer to the carbonaceous material. The method can further comprise metallizing the polymer-grafted carbonaceous material.
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Columbian Chemicals Company
Kopec Mark
Needle & Rosenberg P.C.
Thomas Jaison
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