Trimethylglycine as a freeze suppressant in fire fighting foams
US10369395B2 · kind B2 · utility
22Cited by
50References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Sep 11, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D1/0071
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Fire foam concentrates are provided that contain trimethyl glycine as a freeze suppressant, an effective amount of at least one anionic, zwitterionic or nonionic surfactant, and an effective amount of a foam stabilizing agent. Methods of preparing fire fighting foams from the concentrates, and methods of fighting fires using these foams, also are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.