THERMOPLASTIC MOLDING BLEND Russian patent published in 2004 - IPC

FIELD: polymer materials. SUBSTANCE: invention provides thermoplastic composition based on polyethylene terephthalate and its wastes processed using jet molding technique, extrusion, and so on, which contains: 100 wt parts polyethylene terephthalate with specific viscosity 0.29-0.31 and secondary polyethylene terephthalate with specific viscosity 0.1-0.25 at their weight ratio (80- 90):(10-20); 5-20 wt parts polymeric modifier (polyethylene, polypropylene, polyamide); and 5-10 wt parts powder-like mixture of calcium oxide and mineral oil I-50 at their weight ratio (15-85): (85-15). Alternatively, composition comprises compatibility agent. EFFECT: enabled preparation of valuable products moldable according to standard conditions using polyethylene terephthalate and its wastes having elevated moisture content. 2 cl, 1 tbl, 7 ex