Polycarbonate substrates
    2.
    发明授权
    Polycarbonate substrates 失效
    聚碳酸酯基材

    公开(公告)号:US06710154B2

    公开(公告)日:2004-03-23

    申请号:US10169883

    申请日:2002-07-10

    IPC分类号: G08G6400

    CPC分类号: G11B7/2534 C08G64/06

    摘要: A method for producing polycarbonate based on 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethyl cyclohexanone and 4,4-(metaphenylene diisopropyl) diphenol is disclosed. The method is characterized in that the recovery and/or further processing of the polycarbonate is performed at temperatures below 290° C. The polycarbonate thus produced has high purity and high transmission and is suitable for the manufacture of optical data stores.

    摘要翻译: 公开了一种制备基于1,1-双(4-羟基苯基)-3,3,5-三甲基环己酮和4,4-(间苯二异丙基)二酚的聚碳酸酯的方法。 该方法的特征在于聚碳酸酯的回收和/或进一步加工在低于290℃的温度下进行。如此生产的聚碳酸酯具有高纯度和高透射率,并且适用于光学数据存储的制造。