| 摘要 |
PROBLEM TO BE SOLVED: To provide a polycarbonate copolymer having a high refractive index and excellent heat resistance. SOLUTION: The polycarbonate copolymer is one in which at least 60 mol% of all the hydroxy compounds is a dihydroxy compound represented by formula (1) and a dihydroxy compound represented by formula (2). COPYRIGHT: (C)2011,JPO&INPIT |
