Electrolytic diaphragms, and method of electrolysis using the same
US4169023A · kind A · utility
40Cited by
4References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 3, 1978 |
| Grant date | Sep 25, 1979 |
| Priority date | — |
| Expiry date | Feb 3, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An electrolytic diaphragm consisting essentially of a main layer composed of a polymeric membranous material uniformly containing cation exchange groups and fluorine atoms chemically bonded thereto and a secondary layer having a smaller thickness than said main layer and composed of at least one of an electrically neutral layer and a layer containing an anion exchange group, said secondary layer being in intimate contact with said main layer at at least one surface layer portion or interior of said main layer. A method for electrolyzing alkali salts, using aforesaid electrolytic diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.