An object is to obtain a polycarbonate resin excellent in the heat resistance and impact resistance and endowed with high surface hardness.
A polycarbonate resin composition (X), comprising: (A) a polycarbonate resin containing (a) a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) in a part of a structure; and (B) an aromatic polycarbonate resin, wherein a reduced viscosity of the aromatic polycarbonate resin (B) is 0.55 dl/g or less, a proportion of the aromatic polycarbonate resin (B) in the polycarbonate resin composition (X) is 30 wt% or more, and a total light transmittance of the polycarbonate resin composition (X) is 90% or less:
[Chem. 1] (̵CH2-O)̵ (1)
目的是获得一种耐热性和抗冲击性优异且表面硬度高的聚
碳酸酯
树脂。
一种聚
碳酸酯
树脂组合物 (X),包括:(A) 聚
碳酸酯
树脂,其中含有(a) 结构单元,该结构单元衍生自具有下式 (1) 所代表分子的二羟基化合物;(B) 芳香族聚
碳酸酯
树脂,其中芳香族聚
碳酸酯
树脂 (B) 的降低粘度为 0.55 dl/g 或以下,芳香族聚
碳酸酯
树脂 (B) 在聚
碳酸酯
树脂组合物 (X) 中的比例为 30 wt% 或以上,聚
碳酸酯
树脂组合物 (X) 的总透光率为 90% 或以下:
[
化学式 1] (̵
CH2-O)̵ (1)