METHOD FOR PRODUCING THERMOPLASTIC PITCHPOLYMERIC COMPOSITION AND PRODUCTS MADE OF IT Russian patent published in 2018 - IPC C10C3/00 

FIELD: technological processes.

SUBSTANCE: invention relates to the processing of high temperature coal tar pitch, namely to a process for the preparation of a pitchpolymer thermoplastic composition. High-temperature coal tar pitch is mixed with polyvinyl chloride, compatibilizer, plasticizer, filler and special additives. Compatibilizer is a complex of graft copolymers of ethylene-vinyl acetate, polyethylene, and acrylonitrile-butadiene-styrene. Mixture is stirred in an exothermic reaction to a temperature of 115–125 °C, after which it is cooled to a temperature of 40–45 °C. Resulting pitchpolymer thermoplastic composition can be used in the manufacture of structural products for general engineering and engineering purposes.

EFFECT: invention provides an increase in the thermal stability of articles from the pitchpolymer composition while maintaining high mechanical strength.

8 cl, 1 dwg, 6 ex