Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Reexamination Certificate
2006-11-14
2006-11-14
Tran, Thao T. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
C528S092000, C528S102000, C528S171000, C528S391000, C528S422000, C528S488000, C429S006000, C429S047000
Reexamination Certificate
active
07135537
ABSTRACT:
The present invention is directed to sulfonimide-containing polymers, specifically sulfonimide-containing poly(arylene ether)s and sulfonimide-containing poly(arylene ether sulfone)s, and processes for making the sulfonimide-containing poly(arylene ether)s and sulfonimide-containing poly(arylene ether sulfone)s, for use conductive membranes and fuel cells.
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E.I. du Pont de Nemours and Company
Tran Thao T.
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