Polymer electrolyte and proton-conducting membrane

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

Reexamination Certificate

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C528S125000, C528S128000, C528S170000, C528S220000, C528S226000, C528S228000, C528S230000, C528S327000, C528S373000, C528S391000, C429S006000, C429S006000, C429S314000

Reexamination Certificate

active

07030206

ABSTRACT:
To provide a sulfonic acid group-containing polymer having improved hot water resistance and radical resistance (durability), a solid polymer electrolyte including the polymer, and a proton-conducting membrane including the electrolyte, the polymer electrolyte includes a sulfonated product of a polymer shown by the following general formula (I):wherein X, Y, and Z are bonded randomly, alternately, or in blocks, y represents an integer of two or more, and each of x and z represents an integer of zero or more, where x+z>2.

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