Alcohol resistant film-forming fluoroprotein foam concentrates
US5824238A · kind A · utility
3Cited by
10References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1996 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Jul 26, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D1/0085
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention relates to firefighting foam concentrates including a protein hydrolysate in association with: PA1 (a) at least one fluorinated cotelomer which has a perfluoroalkyl radical and a polymerized chain consisting of units of an anionic hydrophilic monomer and of a nonionic hydrophilic monomer, and PA1 (b) at least one fluorinated surface-active agent whose aqueous solution at a concentration 1 g/l has at 20.degree. C. a surface tension lower than 25 mN/m. These film-forming emulsifiers are effective both against hydrocarbon fires and against polar-liquid fires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.