| 摘要 |
[Object] To provide a urethane resin composition capable of providing a urethane resin having a high refractive index while having a glass transition temperature and solubility in solvents within ranges where no problem occurs in practical use, and an optical material. [Solution] Provided are a polyurethane resin composition for optical applications, the polyurethane resin composition containing, as essential components, a polyisocyanate and a polyester-ether polyol obtained by polycondensation of a glycol component containing an alkylene oxide adduct of a bisphenol and an aromatic carboxylic acid component and particularly preferably having a glass transition temperature of 50°C or lower; and an optical material using the composition. |
