RAW MIX FOR MANUFACTURING PRODUCTS OF COMPOSITE MATERIALS Russian patent published in 1994 - IPC

FIELD: manufacture of constructional members and manufacture of thermal insulating, constructional and facing materials. SUBSTANCE: the raw mix for the manufacture of products of composite materials comprises (wt %): 80-90 an organic filler; 3-17 phenoplast; 3-17 polyethylene or polyvinyl chloride or polyvinyl chloride-vinylidene chloride copolymer waste. While manufacturing products, the mix components are stirred, comminuted and pressed. The characteristics of the resultant products: the ultimate strength 26-30 MPa; the tensile strength 1.5-2.1 MPa; the water absorption 3-5 %; the impact strength 20,1-24,6 kJ/cm². EFFECT: improved properties of the raw mix. 1 tbl