Fire fighting foaming compositions
US8431036B2 · kind B2 · utility
9Cited by
3References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2007 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Dec 5, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D1/0078
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a first aspect a fire fighting foaming composition contains a partially acetylated polyvinyl alcohol. In a second aspect the fire fighting foaming composition contains chitosan together with a surfactant such as a protein derived surfactant or a hydrocarbon surfactant which is either amphoteric or non-ionic. The compositions can form effective fire fighting foams in the absence of fluorinated surfactants and other fluorinated compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.