Fire fighting

Details Fire fighting Fire fighting

1973-06-13

1976-05-18

Padgett, Benjamin R.

Compositions

Fire-extinguishing

Foam or gas phase containing

252 2, 252 8, 252 805, 252307, 252310, 252311, 252312, 252357, A62D 100

Patent

active

039576582

ABSTRACT:
Certain fluorocarbon surfactants combined with certain silicone surfactants provide mixtures that reduce the surface tension of water to 19 dynes or less per centimeter, and when foamed are particularly effective in fighting fires involving lighter-than-water hydrophobic liquids. Mixtures are further improved with certain other surfactants and use less of the fluorocarbon surfactants to provide fire fighting effectiveness of prior art compositions which do not contain silicone surfactants. Hydrophilic resins and sequestering agents can also be contained in the mixtures.

REFERENCES:
patent: 3475333 (1969-10-01), Meldrum et al.
patent: 3531417 (1970-09-01), Morehouse
patent: 3531507 (1970-09-01), Morehouse
patent: 3562156 (1971-02-01), Francen
patent: 3621917 (1971-11-01), Rosen et al.
patent: 3655554 (1972-04-01), Fink et al.
patent: 3655555 (1972-04-01), Rossmy et al.
patent: 3772195 (1973-11-01), Francen
patent: 3849315 (1974-11-01), Chiesa, Jr.

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