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
Cain, Edward J (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
C521S030000, C525S327100, C528S211000
Reexamination Certificate
active
07842734
ABSTRACT:
The subject invention relates to the development and characterization of a new series of poly (arylene ether) copolymers containing pyridine and biphenyl or hydroquinone moieties. Preferred polymers can exhibit very good mechanical properties, high thermal and oxidative stability and high doping ability with strong acids. The invention further relates to the preparation and application of MEA on PEMFC type single cells.
REFERENCES:
patent: WO2008/090412 (2008-07-01), None
International Search Report of Related International Application No. PCT/IB2007/004500 (7 pages).
Written Opinion of Related International Application No. PCT/IB2007/004500 (5 pages).
Pefkianakis et al., “Novel polymer electrolyte membrane, based on pyridine containing poly(ether sulfone),for application in high-temperature fuel cells,” Macromolecular rapid communications, 26 (21), 1724-1728 CODEN: MRCOE3; ISSN:1022-1336, Jan. 1, 2005, XP002495312.
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 Publishing Company, Amsterdam, NL, vol. 252, No. 1-2, Jan. 1, 2003, pp. 115-122, XP009103762, ISSN:0376-7388.
Kerres, J.A., “Development of ionomer membranes for fuel cells,”Journal of Membrane Science, Elsevier Scientific Publishing Company, Amsterdam, NL, vol. 185, Apr. 15, 2001, pp. 3-27, XP002226657, ISSN: 0376-7388.
Deimede Valadoula
Geormezi Maria
Gourdoupi Nora
Kallitsis Joannis
Advent Technologies SA
Cain Edward J
Corless Peter F.
Edwards Angell Palmer & & Dodge LLP
Swiszcz Lisa
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