Methods using fluoroketones for: extinguishing fire; preventing fire, and reducing or eliminating the flammability of a flammable working fluid
申请人:E.I. du Pont de Nemours and Company
公开号:US07343981B2
公开(公告)日:2008-03-18
The present invention relates to methods of using at least one fluoroketone selected from monobromoperfluoroketones, monohydromonobromoperfluoroketones, (perfluoroalkoxy)monobromoperfluoroketones, (fluoroalkoxy)monobromoperfluoroketones, and monochloromonobromoperfluoroketones for i) extinguishing fire by applying to the fire such a fluoroketone, ii) preventing fire in an air-containing enclosed area containing combustible materials by introducing into the area such a fluoroketone and maintaining the fluoroketone in an amount sufficient to suppress combustion of combustible materials in the enclosed area, and iii) reducing or eliminating the flammability of a flammable working fluid, by mixing between about 0.1 to about 99 percent by weight of such a fluoroketone with the flammable working fluid.
本发明涉及使用至少一种氟酮,所选氟酮包括单溴全氟酮、单氢单溴全氟酮、(全氟烷氧基)单溴全氟酮、(氟烷氧基)单溴全氟酮和单氯单溴全氟酮的方法。该方法包括:i)通过将这种氟酮施加到火源上来灭火;ii)通过将这种氟酮引入含有易燃物质的充气封闭区域中,并保持足够数量的氟酮以抑制封闭区域内易燃物质的燃烧来预防火灾;以及iii)通过将约0.1至约99重量%的这种氟酮与易燃工作流体混合来减少或消除易燃工作流体的易燃性。