FIELD: chemistry of polymers. SUBSTANCE: described are compositions comprising polypropylene copolymers, polycarbonate, aliphatic polyether and optionally rubber component and/or polypropylene. Composition comprises, wt parts: about 5-63 of at least one graft copolymer containing skeleton from polypropylene material with monomers grafted by polymerization (a), about 5-63 of at least one polycarbonate (b) and about 1-15 of at least one aliphatic polyether (c) with molecular weight MW of 5000-300,000 and having recurring ester structural units of general formula: 
wherein R1,R2,R3 and R4 each is selected from group consisting of H, CH3 linear or branched alkyl, x and y=1-20 or more (a)+(b)+(c)= 100%. Composition-based material retains excellent heat resistance has high rigidity, tensile strength at high temperature, high chemical resistance and good surface glass. Composition is readily processable from melt and has improved compatibility. EFFECT: improved properties of the polymeric composition. 23 cl, 14 tbl
