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    • 4. 发明授权
    • Aqueous film-forming foamable solution useful as fire extinguishing
concentrate
    • 用作灭火浓缩物的成膜水可发泡溶液
    • US5085786A
    • 1992-02-04
    • US645557
    • 1991-01-24
    • Roger R. AlmRichard M. Stern
    • Roger R. AlmRichard M. Stern
    • A62D1/02C07C233/47C07C305/04C07C309/13C07C309/14C07C309/15C07C311/18C07C311/19C07C311/65C07C317/28C07F9/09C09K3/00
    • A62D1/0085
    • An improved aqueous film-forming foamable concentrate which is particularly useful for extinguishing flammable liquid fires. The preferred formulation contains (a) fluoroaliphatic amphoteric surfactant, preferably a fluorinated aminocarboxylate having a C.sub.4 to C.sub.10 perfluoroaliphatic group, (b) fluoroaliphatic anionic surfactant, preferably a C.sub.4 to C.sub.10 perfluoroalkane suflonate, and (C) short chain (C.sub.6 to C.sub.10) alkyl ether sufate hydrocarbon surfactant. When the concentrate is diluted with fresh or sea water and aerated, an aqueous film-forming foam is produced which is useful in extinguishing flammable liquid fires such as a fuel fire. The foam quickly spreads a superior vapor-sealing film on the surface of a burning fuel. The film reforms quickly when disturbed. The improved film-forming properties results in quicker and more reliable extinguishment of flammable liquid fires.
    • 一种改进的成膜水可发泡浓缩物,其特别用于扑灭易燃液体火焰。 优选的制剂包含(a)氟代脂族两性表面活性剂,优选具有C4至C10全氟脂肪族基团的氟代氨基羧酸酯,(b)氟代脂族阴离子表面活性剂,优选C 4至C 10全氟烷烃磺酸酯,和(C)短链(C 6至C 10)烷基 醚类表面活性剂。 当浓缩物用新鲜或海水稀释并充气时,产生水性成膜泡沫,其可用于扑灭诸如燃料火的易燃液体火焰。 泡沫在燃烧燃料的表面上迅速扩散出一个优异的蒸汽密封膜。 影片在受到打扰时迅速改革。 改进的成膜性能导致易燃液体火焰的更快和更可靠的熄灭。
    • 6. 发明授权
    • Dyed aqueous air foams
    • 染色水性空气泡沫
    • US4923903A
    • 1990-05-08
    • US301512
    • 1989-01-24
    • Roger R. AlmRichard M. Stern
    • Roger R. AlmRichard M. Stern
    • B05D7/24C08G18/10C08G18/38C08G18/48C08G101/00C08J9/02C08L75/00C08L75/04C09K3/32
    • C09K3/32C08G18/10C08G18/38C08G18/3836C08G18/4837
    • Air is mechanically entrained in a dyed or colored, aqueous solution comprising surfactant, poly(oxyalkylene) polyisocyanate prepolymer and the reaction product of said prepolymer and one or more isocyanate-reactive dyes, the poly(oxyalkylene) portion of said prepolymer containing sufficient oxyethylene units to render the prepolymer and the reaction product water-soluble and hydrophilic, to form a dyed or colored, fluid, aqueous air foam which is sprayed or otherwise applied to exposed surface of a substrate, e.g. a sanitary landfill, the applied foam gelling or increasing in viscosity, due to the polymerization, e.g., by reaction with water or polyamine, of the prepolymer and the reaction product, to form a dyed or colored, poly(oxyalkylene) polyurea polymer, forming a persistent, dyed or colored, gelled or viscous air foam in the form of a coating on the exposed surface, thus sealing or otherwise protecting or controlling the substrate and coloring the substrate making it more visible, decorative, or less visible, thereby camouflaging the substrate.
    • 将空气机械夹带在包含表面活性剂,聚(氧化烯)多异氰酸酯预聚物和所述预聚物与一种或多种异氰酸酯反应性染料的反应产物的染色或着色的水溶液中,所述预聚物的聚(氧化烯)部分含有足够的氧化乙烯单元 以使预聚物和反应产物具有水溶性和亲水性,以形成染色或着色的流体的水性气泡,其被喷涂或以其它方式施加到基底的暴露表面,例如 卫生填埋场,应用泡沫胶凝或增加粘度,由于聚合,例如通过与水或多胺反应预聚物和反应产物,以形成染色或着色的聚(氧亚烷基)聚脲聚合物,形成 在暴露的表面上以涂层形式的持久的,染色的或有色的胶凝或粘稠的空气泡沫,从而密封或以其他方式保护或控制基底并使基底着色,使其更可见,装饰或更少可见,从而伪装 基质。