Process for the preparation of cyclic perfluoroaliphaticdisulfonic acid anhydrides
US4386214A · kind A · utility
3Cited by
5References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 1, 1981 |
| Grant date | May 31, 1983 |
| Priority date | — |
| Expiry date | Dec 1, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/46
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Cyclic perfluoroaliphaticdisulfonic acid anhydrides, sulfonamide derivatives thereof, a process for making the same, curable compositions containing cyclic perfluoroaliphaticdisulfonic acid anhydrides or sulfonamide derivatives thereof and cationically-sensitive monomers, and a process for using cyclic perfluoroaliphaticdisulfonic acid anhydrides or sulfonamide derivatives thereof as catalysts for the cure of cationically-sensitive monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.