| 摘要 |
PROBLEM TO BE SOLVED: To prepare a polycarbonate resin sheet having reduced fault in appearance and distortion in see-through pattern, keeping transparency, and having improved resistance to draw-down when carrying out thermoforming processing. SOLUTION: This sheet is produced from a polycarbonate resin obtained by an ester-exchanging method, having a loss angleδand a complex viscosityη*(Pa.s) measured under the condition of 250 deg.C temperature and 10 rad/s angular velocity, and satisfying the following relation: 2,500<=Tanδ/η*<-0.87> <=6,000. |
