AEROSOL-FORMING FUEL Russian patent published in 2019 - IPC A62D1/06 

FIELD: fire-fighting equipment.

SUBSTANCE: invention relates to aerosol-forming fuels for volumetric fire extinguishing intended for use in gas generators for extinguishing fires in different rooms, including in storage of various documents, books, etc., as well as in rooms with electronic devices and equipment. Invention is aimed at improvement of aerosol-forming composition environmental component and reduced corrosion effect due to reduced amount of harmful and corrosion-active compounds in combustion products, as well as improved operational and technical characteristics. Aerosol-forming fuel for volumetric fire extinguishing containing a mixture of oxidising agents - potassium perchlorate and potassium nitrate at weight fraction of potassium perchlorate ≥ 0.9, binder - phenol-formaldehyde resin, plasticised with dibutyl phthalate, fluoroplastic-4, process additive - calcium stearate, magnesium or their mixture, soot and multifunctional filler - potassium chloride, potassium bromide, zinc oxide. In combustion products of the composition, the amount of acidic and alkaline substances (HCl, HF, K, KOH, K₂CO₃) does not exceed 0.25 mol/kg, and content of CO for samples with high amount of oxidising agent is 2.6–4.4 times less than for prototype.

EFFECT: composition has lower sensitivity to mechanical and thermal effects and controlled in a wide range of combustion rate at atmospheric pressure with low dependence on pressure.

1 cl, 5 tbl, 25 ex, 2 dwg