To provide a water based fire extinguishant having an excellent initial fire extinguishing power even by a small using amount against a normal fire, an oil fire, a forest fire, a bush fire or the like and also having an excellent rekindled fire preventing effect without causing any physical property change in the agent even when preserved for a long period of time, and to provide a fire extinguishing method using the fire extinguishant.
A temperature sensitive polymer, which has no lower limit critical solution temperature up to 100°C in pure water and has the lower limit critical solution temperature of 35 to 100°C in the water solution mixture of 5 wt.% ammonium dihydrogen phosphate and 5 wt.% diammonium hydrogen phosphate, and an extinguishing agent such as phosphate, condensed phosphate, sulphate, bicarbonate or tungstate are dissolved into water , thereby preparing the water based fire extinguishant.
TERAMOTO KOJI
MARUYAMA TAKASHI
| JP2001276273A | 2001-10-09 | |||
| JP2002291939A | 2002-10-08 |