IMPREGNATING FIREPROOF COMPOSITION Russian patent published in 2000 - IPC

FIELD: protection of wood from destruction by biological agents and from inflammation, and prophylactic treatment of structures of wood, fabrics, carpet coatings, and preservation of wood. SUBSTANCE: impregnating composition comprises ammonium salt-based antipyrenes dissolved in water, ammonium, silicon fluoride antiseptic, and surfactant. Surfactant is sulfonol or sulfonate, and components are added in the following ratios, wt %: nitroammophoska, 20- 22; ammonium sulfate, 3-5; ammonium silicon fluoride, 2- 3; sulfonol/sulfonate, 1-2; and the water balance. EFFECT: greater technological possibilities due to increased frost resistance, simplified method of preparing impregnating solution, and improved functional reliability of the composition.