Abstract: Aqueous firefighting composition concentrates are provided that contain an effective amount of a high molecular weight water soluble anionic acrylic polymer, an effective amount of at least one high molecular weight polysaccharide gum; and an effective amount of at least one surfactant. In the present context, a high molecular weight water-soluble anionic acrylic polymer is a polymer with an average molecular weight Mw of at least one million (1000 kDa). The combination of the acrylic polymer and the gum provide a concentrate that generates foam with highly desirable firefighting properties, including high foam expansion ratio, long burnback time, and slow drainage time while avoiding problems with previous gum-containing foam concentrates, such as high viscosity and component separation upon storage.

Abstract: Fire foam concentrates are provided that contain trimethyl glycine as a freeze suppressant, an effective amount of at least one anionic, zwitterionic or nonionic surfactant, and an effective amount of a foam stabilizing agent. Methods of preparing fire fighting foams from the concentrates, and methods of fighting fires using these foams, also are provided.

Abstract: Aqueous film forming firefighting composition concentrates are provided that contain an effective amount of a monomeric zwitterionic or anionic C6 perfluoroalkyl surfactant having a molecule weight less than 800 daltons. The compositions also contain an effective amount of a foam stabilizing agent, and an effective amount of at least one non-fluorinated surfactant. The composition has less than 0.8% F, and is substantially free of any surfactant containing a perfluoroalkyl group containing more than 6 carbon atoms. The composition meets Military Specification MIL-F-24385F.

Abstract: Aqueous film forming firefighting composition concentrates are provided that contain an effective amount of a monomeric zwitterionic or anionic C6 perfluoroalkyl surfactant having a molecule weight less than 800 daltons, The compositions also contain an effective amount of a foam stabilizing agent, and an effective amount of at least one non-fluorinated surfactant. The composition has less than 0.8% F, and is substantially free of any surfactant containing a perfluoroalkyl group containing more than 6 carbon atoms. The composition meets Military Specification MIL-F-24385F.

Abstract: Aqueous film forming firefighting composition concentrates are provided that contain an effective amount of a monomelic zwitterionic or anionic C6 perfluoroalkyl surfactant having a molecule weight less than 800 daltons. The compositions also contain an effective amount of a foam stabilizing agent, and an effective amount of at least one non-fluorinated surfactant. The composition has less than 0.8% F, and is substantially free of any surfactant containing a perfluoroalkyl group containing more than 6 carbon atoms. The composition meets Military Specification MIL-F-24385F.

Abstract: Fire foam concentrates are provided that contain trimethyl glycine as a freeze suppressant, an effective amount of at least one anionic, zwitterionic or nonionic surfactant, and an effective amount of a foam stabilizing agent. Methods of preparing fire fighting foams from the concentrates, and methods of fighting fires using these foams, also are provided.

Abstract: Aqueous firefighting composition concentrates are provided that contain an effective amount of a high molecular weight water soluble anionic acrylic polymer, an effective amount of at least one high molecular weight polysaccharide gum; and an effective amount of at least one surfactant. In the present context, a high molecular weight water-soluble anionic acrylic polymer is a polymer with an average molecular weight Mw of at least one million (1000 kDa). The combination of the acrylic polymer and the gum provide a concentrate that generates foam with highly desirable firefighting properties, including high foam expansion ratio, long burnback time, and slow drainage time while avoiding problems with previous gum-containing foam concentrates, such as high viscosity and component separation upon storage.

Abstract: Aqueous film forming firefighting composition concentrates are provided that contain an effective amount of a monomelic zwitterionic or anionic C6 perfluoroalkyl surfactant having a molecule weight less than 800 daltons. The compositions also contain an effective amount of a foam stabilizing agent, and an effective amount of at least one non-fluorinated surfactant. The composition has less than 0.8% F, and is substantially free of any surfactant containing a perfluoroalkyl group containing more than 6 carbon atoms. The composition meets Military Specification MIL-F-24385F.