FIELD: manufacture of building materials. SUBSTANCE: materials are manufactured from cellulose-containing filler and powdered thermoplastic polymer binder. Process includes disintegration of starting materials, molding blanks, and hot pressing. Invention is distinguished by that filler is broken until loose density 20 to 90 kg/cu.m is attained and fire retardants and antiseptics are added before mixing. EFFECT: reduced consumption of binding agent, improved and stabilized physico- mechanical properties of material. 13 cl, 1 tbl
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