Method of bonding cation exchange membrane of fluorinated polymer
US4318785A · kind A · utility
13Cited by
13References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1979 |
| Grant date | Mar 9, 1982 |
| Priority date | — |
| Expiry date | Aug 9, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of bonding a cation exchange membrane which comprises melt-bonding a part of the cation exchange membrane of a fluorinated copolymer in the form having ion-exchange groups of --COOY wherein Y represents hydrogen atom or a C.sub.1 -C.sub.20 alkyl group, when the cation exchange membrane is used in the form having ion-exchange groups of EQU --(COO).sub.m X wherein X represents an alkali metal, an alkaline earth metal or --NHR.sub.1 R.sub.2 R.sub.3 and R.sub.1 to R.sub.3 respectively represent hydrogen atom or a lower alkyl group and m is a valence of X.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.