| 摘要 |
PURPOSE: A polyester-based elastomer and a manufacturing method thereof are provided to improve reactive rate and resilience rate and to facilitate manufacturing. CONSTITUTION: A polyester-based elastomer is manufactured by using dimethyl terephthalate or terephthalic acid as an acid component or a diol mixture as a diol component. The diol mixture is a mixture including ethylene glycol, polyethylene glycol, 1,4-butanediol, and polytetramethylene ether glycol, or a mixture including ethylene glycol, polyethylene glycol, 1,4-butanediol, and polytetramethylene ether glycol. The acid component and the diol component are used at a molar ratio of 0.9-1.1: 0.9-2.0. |
