Patent ID: 8097667

Claim:
A fire-extinguishing aerosol composition suitable for heavy current electric apparatuses, comprising oxidant, combustible, adhesive, and additive; wherein, the oxidant in the fire-extinguishing aerosol composition is a mixture of potassium salt oxidant and strontium salt oxidant; the potassium salt is potassium nitrate, potassiumperchlorate, potassium carbonate, potassium nitrite, potassium bichromate, potassium citrate, potassium bicarbonate, or a combination thereof; the strontium salt is strontium nitrate, strontium metasilicate, strontium metaphosphate, strontium iodide, strontium tungstate, strontium permanganate, strontium selenate, strontium molybdate, or a combination thereof; the combustible is guanidine nitrate, aminoguanidine nitrate, diaminoguanidine nitrate, pentaminotetrazole or salt thereof, bitetrazole or salt thereof, diazoaminotetrazole or salt thereof, diaminotetrazole dimer or salt thereof, or a combination thereof; the additive is aluminum powder, magnesium powder, carbon powder, magnesium carbonate, calcium carbonate, potassium feldspar, pyrocatechol potassium borate or salt thereof, hydroxybenzoic acid or salt thereof, benzoic acid or salt thereof, palmitic acid or salt thereof, ammonium nitrate, potassium perchlorate, potassium chloride, copper oxide, ferric oxide, copper phthalocyanine, potassium ferricyanide, hexamethylenetetramine, or a combination thereof; the adhesive is phenolic resin, epoxy resin, acrylic resin, polytetrafluoroethylene, ethylene polymer, nitrocellulose, trialdehyde glyceride, polyvinyl acetate, melamine resin, or a combination thereof; in addition, the weight percents of the components in the fire-extinguishing aerosol composition are: Potassium salt oxidant: ≧20% and <35%; Strontium salt oxidant: ≧30% and <48%; Combustible: 10%~25%; Additive: 2%~10%; and Adhesive: 2%~10%.