Sulfonic acid electrolytic cell membranes and use thereof in the electrolysis of sodium chloride
US4478695A · kind A · utility
48Cited by
4References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 2, 1983 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Sep 2, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/18
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An improved polymer for use as an ion exchange 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 hydration 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.