Trifluorostyrene and substituted trifluorostyrene copolymeric compositions and ion-exchange membranes formed therefrom
US5773480A · kind A · utility
21Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1996 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Dec 18, 2016 |
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.