Fluorobetaine copolymer and fire fighting foam concentrates therefrom
US8916058B2 · kind B2 · utility
1Cited by
33References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2008 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Jun 9, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/387
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
It has been discovered by in present invention that, compared with a fluorosurfactant having only one betaine group per molecule, a fluorosurfactant having a plurality of betaine groups per molecule is superior in its ability to undergo electrostatic interaction with other components of a fire fighting composition thereby improving the performance of the fire fighting composition. Previously known fluorosurfactants comprise only one betaine group per molecule. In contrast, the present invention provides for a fluorobetaine copolymer containing a plurality of betaine groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.