| 摘要 |
PROBLEM TO BE SOLVED: To provide a polycarbonate-based resin excellent in optical characteristics (low birefringence, etc.) and a molding formed from the resin composition. SOLUTION: A polycarbonate-based resin composition is composed of a polycarbonate-based resin and a fluorene polyester oligomer with a weight-average molecular weight of about 2,000-15,000 (for example, 8,000-12,000). The fluorene polyester oligomer may be a condensate of a diol component including a fluorene compound and a dicarboxylic acid component. A ratio of the fluorene polyester oligomer may be about 1-50 pts.wt. (for example, 10-25 pts.wt.) based on 100 pts.wt. of the polycarbonate-based resin. COPYRIGHT: (C)2011,JPO&INPIT |
