METHOD OF PREPARING PYROTECHNICAL AEROSOL-FORMING FIRE-EXTINGUISHING COMPOSITIONS Russian patent published in 2000 - IPC

Abstract RU 2153376 C1

FIELD: fire extinguishing. SUBSTANCE: sodium nitrate powder is dried to moisture content no higher than 0.08% and mixed with ethanol solution of phenol-formaldehyde resin in proportion 67-70 wt % (to resin concentration 9-12 wt %). Resultant mixture is supplemented by 18-20 wt % of dicyanediamide, partially dried, and granulated under drying conditions at 30-45 C. EFFECT: improved manufacturability and production safety. 1 tbl

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RU 2 153 376 C1

Authors

Emel'Janov V.N.

Kozyrev V.N.

Korol'Chenko D.A.

Sidorov A.I.

Dates

2000-07-27—Published

1999-03-15—Filed