| abstract |
(57) [Abstract] [Purpose] To obtain a thermoplastic polyurethane excellent in heat resistance and mechanical strength and excellent in flexibility at room temperature and low temperature. [Structure] Mainly comprises at least one of a dihydroxy compound represented by the following general formula [I] and a monohydroxy compound represented by the following general formula [II], a polyester having hydroxyl groups at both terminals, and a diisocyanate. contains. [Chemical 1] (In the formula, R 1 and R 2 represent an alkylene group, p is 3 or 4, and q and r represent 0 or an integer of 1 or more). [Chemical 2] (In the formula, R 3 represents an alkylene group, 1 represents 2 or 3, and m represents an integer of 0 or 1 or more). |