Omega-hydrofluoroalkyl ethers, precursor carboxylic acids and derivatives thereof, and their preparation and application
US5476974A · kind A · utility
51Cited by
33References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1994 |
| Grant date | Dec 19, 1995 |
| Priority date | — |
| Expiry date | May 20, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2203/146
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Normally liquid, omega-hydrofluoroalkyl ether compounds (and selected mixtures thereof) have a saturated perfluoroaliphatic chain of carbon atoms interrupted by one or more ether oxygen atoms. The compounds can be prepared, e.g., by decarboxylation of the corresponding fluoroalkyl ether carboxylic acids and are useful, e.g., in cleaning and drying applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.