申请人:IDEMITSU PETROCHEMICAL CO., LTD.
公开号:EP1312646A1
公开(公告)日:2003-05-21
Provided is an aromatic polycarbonate resin composition which comprises 100 parts by mass of an aromatic polycarbonate resin and from 0.001 to 1 part by mass of an additional thermoplastic resin that differs from the aromatic polycarbonate resin in the refractive index by at least 0.001 and which is so designed that the ratio (X)/(Y) is at least 0.5 wherein (X) indicates the spectral transmittance at 320 nm through a sample plate of the resin composition having a thickness of 2 mm and (Y) indicates the spectral transmittance at 633 nm through it. Having realized further increase in the transparency of aromatic polycarbonate resin, the resin composition gives moldings of which the transparency is comparable to that of acrylic resin for optical use, and the resin moldings have good impact resistance and heat resistance.
本发明提供了一种芳香族聚碳酸酯树脂组合物,该组合物由 100 份(质量)芳香族聚碳酸酯树脂和 0.001 至 1 份(质量)附加热塑性树脂组成,后者的折射率与芳香族聚碳酸酯树脂相差至少 0.001,且其设计使 (X)/(Y) 之比至少为 0.5,其中 (X) 表示通过厚度为 2 毫米的树脂组合物样板在 320 纳米波长处的光谱透射率,(Y) 表示通过该样板在 633 纳米波长处的光谱透射率。通过进一步提高芳香族聚碳酸酯树脂的透明度,该树脂组合物可制成透明度与光学用丙烯酸树脂相当的模塑件,而且该树脂模塑件具有良好的抗冲击性和耐热性。