Polymer electrolyte membrane and solid polymer electrolyte...

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation

Reexamination Certificate

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C429S047000, C429S309000, C521S027000

Reexamination Certificate

active

06933068

ABSTRACT:
A composite polymer electrolyte membrane is formed from a first polymer electrolyte comprising a sulfonated polyarytene polymer and a second polymer electrolyte comprising another hydrocarbon polymer electrolyte. In the first polymer electrolyte, 2-70 mol % constitutes an aromatic compound unit with an electron-attractive group in its principal chain, while 30-98 mol % constitutes an aromatic compound unit without an electron-attractive group in its principal chain. The second polymer electrolyte is a sulfonated polyether or sulfonated polysulfide polymer electrolyte.

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patent: 6465136 (2002-10-01), Fenton et al.
patent: 6555626 (2003-04-01), Goto et al.
patent: 2002/0164513 (2002-11-01), Asano et al.
patent: 06-029032 (1994-02-01), None
patent: 08-259710 (1996-10-01), None
patent: 2000-231928 (2000-08-01), None

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