| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyurethane elastomer excellent in mechanical properties and heat resistance, and a polyurethane resin composition for obtaining such polyurethane elastomer.SOLUTION: The polyurethane elastomer is obtained from the polyurethane resin composition including a polyisocyanate component the average number of functional groups of which is less than 2.5 and an active hydrogen group-containing compound component containing amorphous polytetramethylene ether glycol. According to such polyurethane elastomer and polyurethane resin composition, the heat resistance and the mechanical properties can be improved while having low hardness. |
