Fighting fire

Details Fighting fire Fighting fire

1977-06-21

1979-04-17

Padgett, Benjamin R.

Fire extinguishers

Processes

Of extinguishing fire

169 46, 252 3, 252 65, 252 805, 252307, 252316, 536 1, A62D 100

Patent

active

041495993

ABSTRACT:
Fire-fighting foam effecting against burning hydrophilic or polar liquids like lower alcohols, ketones, etc. is made from concentrate containing thixotropic thickener dissolved in large amount, yet has a tolerable viscosity particularly when stirred. Heteropolysaccharide-7 or chain-shortened modifications of it are suitable for this purpose. The concentrate can also be made suitable for fighting fires on hydrophobic liquids by adding surfactants that cause aqueous film formation over such liquids.

REFERENCES:
patent: 3849315 (1974-11-01), Chiesa, Jr.
patent: 3915800 (1975-10-01), Kang et al.
patent: 3957657 (1976-05-01), Chiesa, Jr.
patent: 3957658 (1976-05-01), Chiesa, Jr. et al.
patent: 3984334 (1976-10-01), Hopper
patent: 4060132 (1977-11-01), Chiesa, Jr.
patent: 4060489 (1977-11-01), Chiesa, Jr.
patent: 4089804 (1978-05-01), Falk
Howard, R. D., Research Disclosure, No. 122, pp. 47-48 (Jun. 1974).

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