COMPOSITION FOR FIREBIOPROTECTIVE WOOD IMPREGNATION Russian patent published in 2015 - IPC B27K3/52 C09D5/14 C09K21/04 B27K3/20 

FIELD: chemistry.

SUBSTANCE: invention relates to field of industrial building materials and is intended for surface firebioprotective impregnation of wood and wood plate materials. Composition for firebioprotective impregnation of wood contains phosphate compound, represented by calciumzincphosphatenitrate binding agent, containing 25-31% of phosphorus (counted per P₂O₅), 6-8% zinc (counted per ZnO), 0.7 - 1.1 % of calcium (counted per CaO), 10.5-12.5% of nitrates (counted per NO₃), amino-containing compound, diammoniumphosphate, fluoride of alkaline metal or aluminium, surface-active substance, tinting paste and water.

EFFECT: invention makes it possible to increase fireproof properties, biostability of wood and wood plate materials, as well as to reduce leachability and moisture absorption.

2 tbl, 2 ex