FIELD: chemistry.
SUBSTANCE: composition for producing hydrophobic fire- and water-resistant films contains aqueous solution of polyvinyl alcohol, formaldehyde and an acid curing catalyst - phosphoric acid, a dispersion of solid amino plastic particles based on products of condensation of formaldehyde with urea in form of fine particles of a urea-formaldehyde resin, with overall molar ratio of the mixture of amines to formaldehyde of 1:0.8-1.3, diethanolamine, a water repellent in form of a 50% aqueous dispersion. In a second version, the composition contains a mixture of carbamide with 10-30% melamine besides formaldehyde.
EFFECT: obtaining fire-resistant films endowed with water-repellent properties and water-resistance.
5 cl, 3 tbl
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