Trifluorostyrene and substituted trifluorostyrene copolymeric ion-exchange membranes
US5498639A · kind A · utility
15Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1995 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | May 16, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Polymeric compositions are derived from copolymers of .alpha.,.beta., .beta.-trifluorostyrene with a variety of substituted .alpha.,.beta.,.beta.-trifluorostyrenes. These compositions are suitable for use as membranes, particularly as ion-exchange membranes, and most particularly as solid polymer electrolytes in electrochemical applications, such as, for example, electrochemical fuel cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.