Process for preparing fluorine-containing polymers having carboxyl groups
US4200711A · kind A · utility
9Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1978 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Apr 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for preparing a fluorine-containing polymer having carboxyl groups, which comprises subjecting a fluorine-containing polymer having sulfonyl halide groups bonded to it to an oxidation reaction at a temperature of not more than 250.degree. C.; and a process for electrolysis, using as a diaphragm a member of the polymer obtained by the above process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.