FIELD: fire-resistant materials.
SUBSTANCE: porous substrate, in particular polymer substrate, is impregnated with fire-resistant agent, namely organophosphorus compound having hydrophilic or hydrophobic nature to be compatible with surface of porous carrier. Impregnation is effected according to dry impregnation technique.
EFFECT: considerably improved fire resistance of materials without harmful effect on properties of material at temperatures above 200°C.
30 cl, 2 tbl, 4 ex
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