Perfluoroalkyl functionalized polyacrylamide for alcohol resistant-aqueous film-forming foam (AR-AFFF) formulation
US9956447B2 · kind B2 · utility
33Cited by
4References
25Claims
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Key dates
| Filing date | Sep 25, 2013 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Apr 1, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/585
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
New high molecular weight fluoropolymers (fluoropolymer surfactants) are provided that are useful in compositions for use as fire extinguishing concentrates. The fluoropolymers contain C4-C6 perfluoroalkyl groups, and substantially lack perfluoroalkyl groups containing more than 6 fluorine-substituted carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.