申请人:Idemitsu Kosan Co., Ltd
公开号:EP3617272A1
公开(公告)日:2020-03-04
Provided is a polycarbonate-based resin composition including: an aliphatic polycarbonate-based resin (A) containing a specific repeating unit; and a glass filler (B) having specific composition and having a total content of Li2O, Na2O, K2O, and Cs2O of 5 mass% or less, wherein the refractive index of the aliphatic polycarbonate-based resin (A) for light having a wavelength of 589.3 nm is 1.480 or more and 1.520 or less, wherein the refractive index of the glass filler (B) for light having a wavelength of 589.3 nm is 1.485 or more and 1.520 or less, and wherein a difference in refractive index between the aliphatic polycarbonate-based resin (A) and the glass filler (B) is 0.003 or less for light having a wavelength of 486.1 nm, is 0.001 or less for light having a wavelength of 589.3 nm, and is 0.001 or less for light having a wavelength of 656.3 nm. Provided are a polycarbonate-based resin composition that can provide a molded body having excellent transparency, and a molded body excellent in transparency.
提供了一种聚碳酸酯基树脂组合物,包括:含有特定重复单元的脂肪族聚碳酸酯基树脂(A);以及具有特定成分且Li2O、Na2O、K2O和Cs2O的总含量为5质量%或以下的玻璃填料(B),其中脂肪族聚碳酸酯基树脂(A)对于波长为589.3 nm的光的折射率为1.480或以上且1.520 或以下,其中玻璃填料 (B) 对于波长为 589.3 纳米的光的折射率为 1.485 或以上和 1.520 或以下,其中脂肪族聚碳酸酯基树脂 (A) 和玻璃填料 (B) 之间的折射率差为 0.对于波长为 486.1 纳米的光,折射率差为 0.003 或以下;对于波长为 589.3 纳米的光,折射率差为 0.001 或以下;对于波长为 656.3 纳米的光,折射率差为 0.001 或以下。本发明提供了一种聚碳酸酯基树脂组合物,该组合物可提供透明度极佳的模塑体和透明度极佳的模塑体。