Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing
Reexamination Certificate
2007-05-24
2010-11-30
Mayes, Melvin C (Department: 1793)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
C521S030000, C429S483000, C429S492000, C528S380000, C528S391000, C528S397000, C528S399000, C528S417000, C528S423000
Reexamination Certificate
active
07842733
ABSTRACT:
High temperature polymer electrolyte membranes bearing pyridine and tetramethyl biphenyl moieties are provided. Preferred polymers can exhibit good mechanical properties, high thermal and oxidative stability and high doping ability with strong acids. Further provided are MEA on PEMFC type single cells.
REFERENCES:
patent: 6232411 (2001-05-01), Hara et al.
International Search Report for related International Application No. PCT/IB2007/004294 (6 pages).
Written Opinion for related International Application No. PCT/IB2007/004294 (7 pages).
Pefkianakis, Elefterios K. et al.:“Novel Polymer Electrolyte Membrane, based on Pyridine Comtaining Poly(ether sulfone),for Application in High-Temperature Fuel Cells”Macromolecular Rapid Communications, 26 (21), 1724-1728 CODEN: MRCOE3; ISSN 1022-1336, 2005, XP002495312.
Gourdoupi, N. et al.:“Novel Proton Conducting Polyelectrolyte Composed of an Aromatic Polyether Containing Main-Chain Pyridine Units for Fuel Cell Applications,”Chemistry of Materials, 15(26), 5044-5050 CODEN: CMATEX; ISSN: 0897-4756, 2003, XP002495313.
Jang et al.:“Acid-base Polymide Blends for the Application as Electrolyte Membranes for Fuel Cells,”Journal of Membrane Science, Sep. 1, 2006, Elsevier Scientific Publ. Company, Amsterdam, NL, pp. 321-329, XP005544281, ISSN: 0376-7388.
Daletou M. K., et al.:“Proton Conducting Membranes Based on Blends of PBI with Aromatic Polyethers Containing Pyridine Units,”Journal of Membrane Science, Elsevier Scientific Publ. Company, Amsterdam, NL, vol. 252, No. 1-2, Jan. 1, 2003, pp. 115-122, XP009103762, ISSN: 0376-7388.
Daletou Maria
Deimede Valadoula
Gourdoupi Nora
Kallitsis Joannis
Neophytides Stylianos
Advent Technologies SA
Corless Peter F.
Edwards Angell Palmer & & Dodge LLP
Mayes Melvin C
Stalder Melissa
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