FUNCTIONAL FILLER FOR A FIRE EXTINGUISHING POWDER COMPOSITION Russian patent published in 2021 - IPC A62D1/00

Abstract RU 2763063 C1

FIELD: firefighting.

SUBSTANCE: invention relates to the composition of a functional filler for a fire extinguishing powder composition based on ammonium phosphates. The functional filler comprises dispersed silicon dioxide particles hydrophobised with polymethyl hydrosiloxane. As components, the filler comprises mesoporous particles of silicon dioxide MSM-48, 65 to 85 wt.%, with a specific surface area greater than 1,000 m²/g, together with silicon dioxide particles of the Aerosil 380 brand, 15 to 35 wt.%. The particles are hydrophobised in an organic solvent medium at a component ratio silicon dioxide/hydrophobising agent of 80/20 wt.%.

EFFECT: fire extinguishing effectiveness of the powder compositions based on ammonium phosphates is increased due to the increased specific surface area thereof.

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RU 2 763 063 C1

Authors

Shamsutdinov Artem Shamilevich

Valtsifer Igor Viktorovich

Lebedeva Irina Igorevna

Dates

2021-12-27—Published

2020-08-12—Filed