Novel polymers having acid functionality
US4330654A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1980 |
| Grant date | May 18, 1982 |
| Priority date | — |
| Expiry date | Jun 11, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F214/184
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymers and the process for producing polymers by the polymerization of at least three monomers wherein at least one monomer is selected from the group consisting of tetrafluoroethylene, trifluoromonochloroethylene, trifluoroethylene, vinylidene fluoride, 1,1-difluoro-2,2-dichloroethylene, 1,1-difluoro-2-chloroethylene, hexafluoropropylene, 1,1,1,3,3-pentafluoropropylene, octafluoroisobutylene ethylene, vinylchloride, trifluoronitrosomethane, perfluoronitrosoethane and alkyl vinyl ether, PA1 and at least one other monomer is selected from the group represented by the general formula: ##STR1## and at least one monomer is selected from the group of monomers represented by the general formula: ##STR2## These polymers are useful as ion exchange membranes in electrolytic cells, especially chlor-alkali electrolytic cells. Other uses include solid, strong acid catalyst useful in corrosive environments, electrodialysis and other similar membrane separation processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.