초록 ▼

An aqueous solution useful in extinguishing fires is disclosed comprising diammonium phosphate, a water soluble polyol, a water soluble gas-generating agent, a non-combustible viscosity builder and water; when sprayed upon burning surfaces, the solution intumesces and generates a flame-resistant pol

An aqueous solution useful in extinguishing fires is disclosed comprising diammonium phosphate, a water soluble polyol, a water soluble gas-generating agent, a non-combustible viscosity builder and water; when sprayed upon burning surfaces, the solution intumesces and generates a flame-resistant polymeric foam having a high char value; the foam shuts off the air supply to the burning surface and thereby quickly and effectively extinguishes the fire.

대표청구항 ▼

A true, aqueous solution capable of intumescing upon exposure to intense heat flux or flame and extinguishing fires comprising about 10 to 30% by weight diammonium phosphate, about 15 to 35% by weight of a water soluble polyol capable of reacting with phosphoric acid and generating a flame-resistant

A true, aqueous solution capable of intumescing upon exposure to intense heat flux or flame and extinguishing fires comprising about 10 to 30% by weight diammonium phosphate, about 15 to 35% by weight of a water soluble polyol capable of reacting with phosphoric acid and generating a flame-resistant polyester foam, said polyol having 2 to 12 carbon atoms and 2 to 8 hydroxyl groups, about 0.5 to 25% by weight of water soluble, thermally activated gas-generating agent, said gas-generating agent producing a non-flammable pneumatogen upon heating, 0 to about 5% by weight of a water soluble, salt-tolerant surfactant, and about 30 to 60% by weight water, said solution having a viscosity in excess of about 100 cps at 25°C.