PROCESS FOR THE PREPARATION OF POLYCARBONATE BY THE MELT TRANSESTERIFICATION METHOD
    2.
    发明申请
    PROCESS FOR THE PREPARATION OF POLYCARBONATE BY THE MELT TRANSESTERIFICATION METHOD 审中-公开
    通过熔融渗透法制备聚碳酸酯的方法

    公开(公告)号:US20090117314A1

    公开(公告)日:2009-05-07

    申请号:US12266152

    申请日:2008-11-06

    IPC分类号: B32B3/02 C08G64/30

    摘要: The invention relates to a process for the preparation of polycarbonate by the melt transesterification method, polycarbonate having a small buildup of electrostatic charge and obtainable by this process and shaped articles or extrudates, in particular optical data stores or diffuser discs, comprising this polycarbonate.

    摘要翻译: 本发明涉及一种通过熔体酯交换法制备聚碳酸酯的方法,聚碳酸酯具有小的静电电荷积累并且可通过该方法获得,并且成型制品或挤出物,特别是含有该聚碳酸酯的光学数据存储或扩散盘。

    Polycarbonates with good wettability
    9.
    发明申请
    Polycarbonates with good wettability 有权
    具有良好润湿性的聚碳酸酯

    公开(公告)号:US20060135735A1

    公开(公告)日:2006-06-22

    申请号:US11312020

    申请日:2005-12-20

    IPC分类号: C08G64/00

    摘要: A polycarbonate resin that after alkaline hydrolysis with sodium hydroxide contain an amount of 0.01 to 150 ppm of carbamate compounds according to formula (1) wherein R1 and R2 independently of one another denote hydrogen or C1-C12-alkyl, or together denote C4-C12-alkylidene, and R3 and R4 independently of one another denote hydrogen, C1-C12-alkyl or phenyl, or together with the carbon atom to which they are bonded form cyclohexyl or trimethylcyclohexyl, said amount measured after alkaline hydrolysis with sodium hydroxide by high pressure liquid chromatography.

    摘要翻译: 用氢氧化钠碱性水解后的聚碳酸酯树脂含有0.01〜150ppm的式(1)的氨基甲酸酯化合物,其中R 1和R 2独立地为1 另一个表示氢或C 1 -C 12 - 烷基,或一起表示C 4 -C 12 - 亚烷基 ,R 3和R 4彼此独立地表示氢,C 1 -C 12 - 烷基或 苯基或与它们键合的碳原子一起形成环己基或三甲基环己基,所述量通过高压液相色谱用氢氧化钠碱化后测量。