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    Process for the production of polycarbonate of constant viscosity
    2.
    发明授权
    Process for the production of polycarbonate of constant viscosity 失效
    用于生产恒定粘度的聚碳酸酯的方法

    公开(公告)号：US5412060A

    公开(公告)日：1995-05-02

    申请号：US189382

    申请日：1994-01-31

    申请人： Claus Wulff ,  Uwe Hucks ,  Rolf Bachmann ,  Gunther Weymans ,  Jurgen Kadelka ,  Wolfgang Herrig

    发明人： Claus Wulff ,  Uwe Hucks ,  Rolf Bachmann ,  Gunther Weymans ,  Jurgen Kadelka ,  Wolfgang Herrig

    IPC分类号： C08G64/24 ,  C08G64/00

    CPC分类号： C08G64/24

    摘要： The invention relates to a process for the production of polycarbonates by the two-phase interfacial method in which deviations between measured and estimated variables are continuously minimized by means of a suitably selected observer or filter system on the basis of a process model with an empirical Mark-Houwink relation adapted to the process. The variables estimated by the observer/filter are converted into control variables which are used to set input streams of the production process. Product quality is kept constant, changes in load or set values are quickly intercepted and even disturbances not readily accessible to measurement are taken into account by the process control.

    摘要翻译： 本发明涉及通过两相界面方法生产聚碳酸酯的方法，其中通过适当选择的观察者或过滤系统，在经验标记的过程模型的基础上，将测量值和估计变量之间的偏差连续最小化 -Houwink关系适应过程。 由观察者/过滤器估计的变量被转换为用于设置生产过程的输入流的控制变量。 产品质量保持不变，负载或设定值的变化被快速截断，并且通过过程控制考虑到测量中不容易获得的均匀干扰。

    Process for the preparation of substituted succinic acid amides
    4.
    发明授权
    Process for the preparation of substituted succinic acid amides 失效
    取代琥珀酸酰胺的制备方法

    公开(公告)号：US4588833A

    公开(公告)日：1986-05-13

    申请号：US665226

    申请日：1984-10-26

    申请人： Jurgen Kadelka ,  Hans-Helmut Schwarz

    发明人： Jurgen Kadelka ,  Hans-Helmut Schwarz

    IPC分类号： C07C235/00 ,  C07C102/00

    CPC分类号： C07C235/00

    摘要： Substituted succinic acid amides, in particular substituted succinic acid amides containing differing derivative groups, are prepared by reacting unsaturated carboxamides with carbon monoxide and with a nucleophilic component containing at least one mobile hydrogen atom, in the presence of cobalt compounds and, if appropriate, in the presence of one or more tertiary nitrogen bases, under an elevated pressure and at an elevated temperature.

    摘要翻译： 取代的琥珀酸酰胺，特别是含有不同衍生物基团的取代的琥珀酸酰胺，是通过使不饱和羧酰​​胺与一氧化碳和含有至少一个可移动氢原子的亲核成分在钴化合物存在下反应制备的，如果合适的话， 在升高的压力和升高的温度下存在一个或多个叔氮碱。