METHOD OF PRODUCTION OF MOULDING MATERIALS Russian patent published in 1995 - IPC

FIELD: construction. SUBSTANCE: powdered polyethylene and filler are mixed at heating to a temperature below the polyethylene melting point, which is maintained in the process of agitation up to sintering of particles in an open low-speed mixer, and sintering is accomplished from polyethylene particles heated to a temperature of 80 to 90 C and filler particles heated to a temperature of 140 to 170 C, with the total surface of polyethylene particles being larger than the total surface of filler particles at least by 10%. Production of moulding materials at a content of polyethylene of 20 percent by mass and lower, suitable for production of construction materials (roof tile, finishing tile, etc.) both reinforced and non-reinforced ones. EFFECT: facilitated procedure. 2 tbl