FOAM-GENERATING COMPOSITION Russian patent published in 2014 - IPC A62D1/02 E21B21/14 E21B35/00 

FIELD: chemistry.

SUBSTANCE: invention relates to foam-generating compositions of multipurpose application, intended for obtaining foam of low, medium and high repetition factor with application of fresh and hard water in concentration 1 vol. %, 3 vol. % and 6 vol. %. Invention can be applied in fire extinguishing, in particular in extinguishing fires of A and B classes, in inertisation of excavations, for suppression of dust in places of its generation, etc. Foam-generating composition includes sodium salts of alkylsulfates of primary high fatty alcohols of fraction C₈-C₁₀ and sodium salts of α-olefinsulfonates of fraction C₁₄-C₁₆, taken in weight ratio 100:(22-36), and water.

EFFECT: increased foam stability (time of flowing of 50% of liquid volume from foam) to 215-280 s, reduction of total content of SAS in concentrate of foam generator and reduction of its viscosity at 20°C to the level 25-40 mm²·s^-1.

5 cl, 3 tbl,16 ex