A - Human Necessities – 62 – D
Patent
A - Human Necessities
62
D
31/5
A62D 1/08 (2006.01) A62D 1/00 (2006.01) C07C 19/00 (2006.01) C07C 19/08 (2006.01)
Patent
CA 2027273
ABSTRACT OF THE DISCLOSURE Fire extinguishing methods, compositions and systems are disclosed which provide for efficacious fire extinguishment with minimal environmental hazard. The methods employ compositions comprising bromodifluoromethane alone or in combination with at least one other fluorocarbon fire extinguishant. Many of the extinguishant mixtures display synergistic fire fighting efficacy, and representative fluorocarbons for use with the bromodifluoromethane include bromotrifluoromethane, bromochlorodifluoromethane, heptafluoropropane, 1,1,1,2,3,3-hexafluoropropane, 1,1,1,3,3,3-hexafluoropropane, pentafluoroethane, 2-chloro-1,1,1,2-tetrafluoroethane, dibromodifluoromethane, dibromotetrafluoroethane, chloropentafluoroethane, 2-bromo-1,1,1,2-tetrafluoroethane, C2F6, C3F8, C4F10, 1-bromo-1,1,2,2-tetrafluoroethane, 1-chloro-1,1,2,2-tetrafluoroethane and mixtures thereof. In addition, a compatible propellant may be employed. The compositions themselves and systems charged with such compositions are also disclosed. The compositions are characterized by surprising fire extinguishing efficacy, low toxicity and ozone depletion potential, and minimal production of deleterious decomposition products.
Fidelle Thomas P.
Iikubo Yuichi
Robin Mark L.
Rose Richard S.
Sweval Mark A.
Fidelle Thomas P.
Iikubo Yuichi
Ridout & Maybee Llp
Robin Mark L.
Rose Richard S.
LandOfFree
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