Fire extinguishing liquid
AssigneeLifesafe Technologies Limited
InventorGavin CORNELIUS
Life of this patent
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Abstract
A fire extinguishing liquid is described comprising (a) one or more of a phosphate, hydrogen phosphate, dihydrogen phosphate or polyphosphate salt; (b) a carbonate or hydrogen carbonate salt; (c) a sulphate salt; and (d) an intumescent component. Methods of manufacturing the fire extinguishing liquid and fire extinguishers containing the liquid are also described. The liquid is useful for extinguishing fires, in particular lithium-ion battery fires.
Claims25
A fire extinguishing liquid comprising:
- (a) one or more of a phosphate, hydrogen phosphate, dihydrogen phosphate or polyphosphate salt;
- (b) a carbonate or hydrogen carbonate salt;
- (c) a sulphate salt;
- and
- (d) an intumescent component.
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A method of manufacturing a fire extinguishing liquid comprising the step of mixing (a) one or more of a phosphate, hydrogen phosphate, dihydrogen phosphate salt or polyphosphate salt;
- (b) a carbonate or hydrogen carbonate salt;
- (c) a sulphate salt;
- (d) an intumescent component and a liquid vehicle,
- optionally wherein:
- component (a) is diammonium hydrogen phosphate ((NH4)2HPO4),
- component (b) is ammonium bicarbonate (NH4HCO3), and
- component (c) is ammonium sulphate ((NH4)2SO4).
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Use of an intumescent component as a fire suppressing additive in a fire extinguishing liquid, wherein the fire extinguishing liquid further comprises (a) one or more of a phosphate, hydrogen phosphate, dihydrogen phosphate or polyphosphate salt;
- (b) a carbonate or hydrogen carbonate salt;
- and (c) a sulphate salt.
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Dependencies are inferred from the claim text.