AEROSOL-FORMING COMPOSITION FOR THREE-DIMENSIONAL EXTINGUISHING OF FIRES Russian patent published in 2000 - IPC

Abstract RU 2150310 C1

FIELD: fire-extinguishing. SUBSTANCE: invention relates to technics for three-dimensional aerosol extinguishing of fires in closed spaces and non-ventilated rooms and more specifically to pyrotechnic compositions giving, after combustion, gas-aerosol mixture of combustion inhibitors. Aerosol-forming composition represents a pyrotechnic block containing, %; potassium nitrate, 60-67; phenol- formaldehyde thermoplastic novolac resin, 9-11; and dicyanediamide, 16-18; and covered by gas-permeable shell of powdered fire-retardant material, 8-11. Pyrotechnic block to fire-retardant weight ratio lies within a range between 1:0.9 to 1:0.12. Above-indicated shell is made in the form of granules composed of 93-95% dolomite, 4-5% urea, and 1- 2% Aerosil. EFFECT: enhanced fire-extinguishing efficiency and increased functional reliability. 2 cl

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RU 2 150 310 C1

Authors

Emel'Janov V.N.

Dubrava O.L.

Dates

2000-06-10—Published

1999-03-31—Filed