Fire-fighting foam

Details Fire-fighting foam Fire-fighting foam

1986-11-06

1987-12-15

Lechert, Jr., Stephen J.

Compositions

Fire-extinguishing

Foam or gas phase containing

252 805, 252307, 252350, 252351, 252353, A62D 100, B01J 1300, C09K 300, B01F 1700

Patent

active

047131829

ABSTRACT:
A stable foam concentrate of low viscosity is diluted with water and foamed to form a foam suitable for application to fires and spills of polar liquids or water-immiscible organic materials. The concentrate is an essentially aqueous solution containing 4% to 6% citrus pectin, 3% to 9% alkylbetaine surfactant, 9% to 20% sodium alkyl sulfate surfactant, 4% to 12% alkoamphoglycinate or alkoamphopropionate surfactant, the total amount of surfactant being at least 30%. The concentration may also contain 1% to 4% of a fluorine substituted thioether.

REFERENCES:
patent: 2956947 (1960-10-01), Carter
patent: 3634233 (1972-01-01), Hiltz
patent: 3839425 (1974-10-01), Bartlett
patent: 4278552 (1981-07-01), Hisamoto et al.
patent: 4325831 (1982-04-01), Watson et al.
patent: 4461716 (1984-07-01), Barbarin
patent: 4477375 (1984-10-01), Grollier
patent: 4540507 (1985-09-01), Grollier
patent: 4565647 (1986-01-01), Llenado

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