| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoplastic polyurethane resin which has excellent mechanical strength and also has excellent heat stability, a molding obtained by molding the thermoplastic polyurethane resin, and a method for producing a thermoplastic polyurethane resin producible of such a thermoplastic polyurethane resin.SOLUTION: The thermoplastic polyurethane resin is produced at least by the reaction of a polyisocyanate, a high molecular weight polyol, and an amide group-containing diol represented by the following general formula (1): HO-Y-NH-CO-(X)-CO-NH-Y-OH, wherein X is an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, or an aromatic hydrocarbon group; Yand Yare mutually the same or different and are atom groups having at least 3 atoms for connecting O to N at the shortest; and n is an integer of 0 or 1. Also, the molding is obtained by molding the thermoplastic polyurethane resin. |
