| 摘要 |
PROBLEM TO BE SOLVED: To provide a substituent containing polycarbonate resin molding material for optics capable of not only having high reliability on a production for a long time but also improving productivity of a substrate, and an optical disk substrate. SOLUTION: The polycarbonate resin molding material for optics has a monofunctional phenols content of at most 50 ppm and a total chlorine content of at most 20 ppm. The optical disk substrate is made of the molding material. |
