C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
204/202, 402/321
C08F 28/00 (2006.01) B01J 39/18 (2006.01) C08J 5/22 (2006.01) C25B 1/46 (2006.01) C25B 13/08 (2006.01)
Patent
CA 1180849
ABSTRACT An improved polymer for use as an ion ex- change membrane in an electrolytic cell wherein the polymer has pendant chains containing sulfonic acid ion exchange groups and has an equivalent weight of between about 800 and about 1500. The polymers have a hy- dration product of less than about 22,000. The electrolytic cell and its method of operation are described when these polymers are used as ion exchange membranes.
379463
Carl William P.
Ezzell Bobby R.
Mod William A.
Smart & Biggar
The Dow Chemical Company
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