Electrolytic cation exchange membrane
US4610764A · kind A · utility
2Cited by
14References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1985 |
| Grant date | Sep 9, 1986 |
| Priority date | — |
| Expiry date | May 20, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/18
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An electrolytic cation exchange membrane which comprises a first film made of a fluorinated polymer having cation exchange groups and containing a fibrillated tetrafluoroethylene polymer and a second film laminated thereon, made of a fluorinated polymer having carboxylic acid groups as its ion exchange groups, said first film having a greater thickness and smaller specific electric resistance than said second film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.