A process for the production of a stabilized polycarbonate which comprises melt-polycondensing an aromatic dihydroxy compound and a carbonic acid diester in the presence of a polycondensation catalyst and then, after the reaction mixture shows an intrinsic viscosity of at least 0.1, adding at least one stabilizer selected from the group consisting of specific compounds having a sulfanate group and a sulfonic acid anhydride group in an amount of 0.01 to 500 ppm of a polycarbonate to be formed, to form a polycarbonate having a desired intrinsic viscosity.
一种生产稳定聚
碳酸酯的工艺,包括在缩聚催化剂存在下熔融缩聚芳香族二羟基化合物和
碳酸二酯,然后在反应混合物显示出至少 0.1,加入至少一种稳定剂,该稳定剂选自具有
硫酸基团和
磺酸酐基团的特定化合物组成的组,加入量为待形成的聚
碳酸酯的 0.01 至 500 ppm,以形成具有所需固有粘度的聚
碳酸酯。