RAW MIXTURE FOR HEAT-INSULATING MATERIAL MAKING Russian patent published in 1997 - IPC

FIELD: building industry. SUBSTANCE: raw mixture has the following components, wt.-%: polymeric binding agent as powder of thermoplastics mixture 4.5-58.5; cellulose cotton or outworn money signs, or a mixture of the following composition, wt.-%: milled waste-paper 80; boric acid 12 and borax 8, or a mixture of the indicated money signs and cellulose cotton or the milled waste-paper at ratio = 1:(1-3) 35-95 and polyethylene wax 0.5-6.5. Mixture has polymeric binding agent at content of the secondary low-density polyethylene 40 wt.-%, not less, milled to specific surface 0.6-6.5 m²/g, and thermoplastics have melting point 230 C, not above. Also, mixture has low-molecular waste of polyethylene synthesis as polyethylene wax. Materials of the claimed raw mixture have density value from 200 to 300 kg/m³, heat conductivity coefficient is from 0.063 to 0.076 W/mK. EFFECT: improved quality and property of mixture. 5 cl