| 摘要 |
PROBLEM TO BE SOLVED: To provide a polycarbonate resin molding material for optics capable of not only having high reliability on 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 contains at most 50 ppm of a substance represented by formula (1) and at most 50 ppm of a substance represented by formula (2). The optical disk substrate made of the molding material is also provided. |
