POLYCARBONATE RESIN COMPOSITION, OPTICAL RECORDING MEDIUM, AND SUBSTRATE THEREFOR
申请人:TEIJIN LIMITED
公开号:EP1116751A1
公开(公告)日:2001-07-18
A polycarbonate resin composition which is excellent in thermal stability such as color retention at the time of melt molding, for example, the prevention of yellowing, and moldability such as releasability and transferability and therefore particularly suitable for the production of precision optical moldings such as optical disk substrates and lenses.
The polycarbonate resin composition comprises (A) an aromatic polycarbonate, and (B) a cyclic carbonate compound, a monoester compound of a divalent aliphatic alcohol having 3 to 14 carbon atoms and an aliphatic monocarboxylic acid having 12 to 24 carbon atoms, or an ether compound obtained by converting at least one hydroxyl group of a polyvalent aliphatic alcohol having 3 to 14 carbon atoms into an aliphatic oxy group having 1 to 18 carbon atoms, or (C) a partial ester compound of an aliphatic alcohol having a valence of 2 to 6 and 2 to 14 carbon atoms and an aliphatic monocarboxylic acid having 12 to 24 carbon atoms, a cyclic phenol compound or a compound selected from hydrochloric acid, phosphoric acid, phosphorous acid, boric acid, and amine salts and ammonium salts thereof.
一种聚碳酸酯树脂组合物,它具有优异的热稳定性,如熔融成型时的颜色保持性,例如防止黄变,以及成型性,如脱模性和转移性,因此特别适用于生产精密光学成型件,如光盘基板和镜片。
聚碳酸酯树脂组合物包括(A)芳香族聚碳酸酯,和(B)环状碳酸酯化合物、具有 3 至 14 个碳原子的二价脂肪醇和具有 12 至 24 个碳原子的脂肪族一羧酸的单酯化合物,或通过将具有 3 至 14 个碳原子的多价脂肪醇的至少一个羟基转化为具有 1 至 18 个碳原子的脂肪族氧基而获得的醚化合物、或 (C) 具有 2 至 6 价和 2 至 14 个碳原子的脂肪醇与具有 12 至 24 个碳原子的脂肪族一 羧酸的部分酯化合物、环状苯酚化合物或选自盐酸、磷酸、磷 酸、硼酸及其胺盐和铵盐的化合物。