Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing
Patent
1983-07-15
1985-07-02
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
C08D 520
Patent
active
045269041
ABSTRACT:
A method for regenerating a perfluorinated cation exchange polymer membrane which can give only a low current efficiency as a result of being used as a diaphragm in an electrolytic cell or an electrodialyzer, said method comprising maintaining said perfluorinated cation exchange polymer membrane at a temperature of at least 110.degree. C. while keeping it in contact with an aqueous solution of a strong acid having a pH at ordinary temperature of not more than 1.0.
REFERENCES:
patent: 4174426 (1979-11-01), Asami
patent: 4423157 (1983-12-01), Masuda
Hirokawa Masaru
Kishida Konosuke
Kabushiki Kaisha Musashino Kagaku Kenkyusho
Kulkosky Peter F.
Michl Paul R.
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