HEAT-INSULATING MATERIAL AND METHOD OF ITS PRODUCTION Russian patent published in 2013 - IPC C04B28/26 E04C2/10 

FIELD: chemistry.

SUBSTANCE: heat-insulating material for civil and industrial building (heat insulation of walls, roofs, basements, etc), production of household appliances and manufacturing (organisation of heat-insulation of household, industrial, motor transport and railway refrigerators). Heat-insulating material includes natural wood fibre, obtained by stoneground grinding, boric acid as fire retardant and sodium tetracarbonate as antiseptic. Its composition includes liquid glass as structure-forming agent, awith the following component ratio, wt.p. (by abs. dry sub.): wood fibre, obtained by stoneground grinding - 100, boric acid - 10-18, sodium tetracarbonate (borax) - 8-12, liquid glass - 1-5. As fire retardant, additionally applied is phosphor-nitrogen-containing component in form of amidophosphate or disubstituted ammonium phosphate with content, wt.p (by abs. dry sub.) - 3-7.

EFFECT: increased heat-insulating properties of material due to ensuring reduction of its heat-conduction coefficient.

2 tbl, 2 cl