Fire-fighting foam concentrate
US11883704B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2022 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Mar 14, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D1/0042
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An aqueous concentrate, which can be diluted with an aqueous diluent to form a foam precursor composition, is provided. The foam precursor composition may be aerated to form a firefighting foam. The present aqueous firefighting concentrates include a surfactant component, which includes one or more of an anionic surfactant, a zwitterionic surfactant and a nonionic surfactant and an aliphatic alcohol-based component. The aliphatic alcohol-based component typically includes at least two alcohols and/or alcohol ethoxylates. The aqueous concentrates contain a substantial amount of water and typically are substantially free of any fluorinated compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.