Compositions – Fire-extinguishing – Gas generative – chemically
Patent
1997-12-03
1999-08-17
Anthony, Joseph D.
Compositions
Fire-extinguishing
Gas generative, chemically
252 7, 252 5, 423283, 423292, 423293, 423294, 4234191, 423421, 423422, 423432, A62D 106, C01B 3510, C01B 3506
Patent
active
059389699
ABSTRACT:
A fire suppressant powder with particle sizes less than 5 .mu.m is made by a chemical reaction between a gas or vapour of a first material and a vapour or an aerosol of a second material. For example an aerosol of sodium hydroxide droplets may be reacted with carbon dioxide gas to produce sodium bicarbonate powder; or boron halide vapour may be reacted with steam to form boric acid powder The powder may be used in fire extinguishers either on its own, or combined with other ingredients such as silica and/or alumina, and calcium stearate.
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patent: 3202477 (1965-08-01), Loeffler et al.
patent: 3216795 (1965-11-01), Brown et al.
patent: 3653819 (1972-04-01), Shibata et al.
patent: 4734386 (1988-03-01), Kubota et al.
patent: 4822900 (1989-04-01), Hayden
patent: 5304397 (1994-04-01), Holzl et al.
AEA Technology PLC
Anthony Joseph D.
Holt William H.
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