In this work, the results of the research on the properties of hydroxyalkyl derivatives of bisoxamidoester have been presented. Special attention was paid for the assessment of their potential application for obtaining foamed polyurethane materials. Using these derivatives as polyol components and 4,40-diphenylmethane diisocyanate, rigid foamed polyurethane materials of increased thermal stability have been obtained. The new polyurethane foams obtained using hydroxyalkyl derivatives with bisoxamidoester groups show good dimension stability and better heat-insulating and strength properties as compared to classic foams. These foams can be used as heat-insulating materials of permanent operating temperature 150 degrees C and temporarily even approaching 200 degrees C.