| 摘要 |
PURPOSE:To obtain the titled substrate having improved heat resistance and optical characteristics, by injection molding a polycarbonate resin containing a carbonate bond constituent unit having a suspended aromatic group and a carbonate bond constituent unit having a specific formula in a specific ratio, under a fixed condition. CONSTITUTION:A polycarbonate resin which contains (A) 95-5wt% carbonate bond constituent unit (based on total carbonate bond constituent unit) containing at least one suspended aromatic group in the unit constituting the carbonate bond and (B) 5-95wt% carbonate bond constituent unit containing a group shown by the formula (X, Y, Z and W are H or 1-6C aliphatic hydrocarbon) and has 9,500-22,000 average-molecular weight is molded at 300-400 deg.C resin temperature and at 50-150 deg.C mold temperature to give the aimed substrate. EFFECT:Especially has improved transparency and low optical strain. |
