Direct fluorination of polymeric materials by using dioxifluorine fluid (mixture of CO.sub.2 and F.sub.2)
US4994308A · kind A · utility
6Cited by
19References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 1988 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | May 31, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J7/126
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention concerns the discovery of a new fluid that promotes the fluorination of polymeric materials more safely, more completely, and more efficiently than the fluids used in the prior art. The new fluid is called "dioxifluorine," which is a mixture of carbon dioxide and fluorine where carbon dioxide is the carrier fluid and fluorine is the reactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.