Flame extinguishing compositions
US5856587A · kind A · utility
7Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1997 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Mar 5, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D1/0057
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Extinguishing compositions comprising a liquid extinguishing agent constituted by hydrofluoropolyethers having general formula EQU HF.sub.2 CO(CF.sub.2 O).sub.n (CF.sub.2 CF.sub.2 O).sub.m CF.sub.2 H wherein n and m are integers comprised between 0 and 20, excluding when m and m are contemporaneously 0 and having boiling point between 30.degree. and 200.degree. C. and having an O/C molar ratio between 0.5-1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.