초록 ▼

Biodegradable foam compositions for extinguishing class B fires are disclosed that may be in either a liquid concentrate or a powder concentrate form. The concentrates comprise (1) a foaming group including a high-foaming surfactant such as an alkyl polyglycoside and a plurality of viscosity-reducin

Biodegradable foam compositions for extinguishing class B fires are disclosed that may be in either a liquid concentrate or a powder concentrate form. The concentrates comprise (1) a foaming group including a high-foaming surfactant such as an alkyl polyglycoside and a plurality of viscosity-reducing agents, for example, polyethylene glycol, and (2) a stiffening group including a water-soluble polymer such as a natural gum, e.g., xanthan gum, and a viscosity-reducing agent. The powder concentrate further comprises a sorption agent.

대표청구항 ▼

[ Thus having disclosed this invention, what is claimed is:] [1.] A liquid concentrate for producing a foam composition for extinguishing fires, said concentrate comprising:a foaming group comprised of:(a) a surfactant that is not a perfluoroalkyl surfactant and that has a water content of less than

[ Thus having disclosed this invention, what is claimed is:] [1.] A liquid concentrate for producing a foam composition for extinguishing fires, said concentrate comprising:a foaming group comprised of:(a) a surfactant that is not a perfluoroalkyl surfactant and that has a water content of less than about 15 wt %; and(b) a plurality of viscosity-reducing agents; anda stiffening group comprised of:(a) a water-soluble polymer; and(b) a viscosity-reducing agent.