Foam-generating concentrated aqueous compositions, method for the preparation of said foam and its use for extinguishing fires.

摘要

1. Concentrated aqueous foam-generating compositions containing : [A] water and [B] an organic mixture comprising : (a) a foaming surface-active substance, (b) a film-forming polymer which is soluble in an aqueous medium, (c) a foam stabiliser and (d) an anti-freeze/auxiliary solvent additive, characterized in that the foaming surface-active substance (a) consists of a mixture in which a compound (alpha) is associated with a compound (beta), (alpha) denoting a cationic or non-ionic aliphatic fluorocarbon surface-active agent and (beta) denoting a conventional anionic non-fluorinated surface-active agent.