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49 条记录 (耗时 0.018 秒)

    Process for the production of polycarbonate of constant viscosity
    7.
    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 production of phosphoric acid triesters
    8.
    发明授权
    Process for the production of phosphoric acid triesters 失效
    磷酸三酯生产工艺

    公开(公告)号：US4267127A

    公开(公告)日：1981-05-12

    申请号：US60679

    申请日：1979-07-25

    申请人： Harald Selbeck ,  Claus Wulff ,  Uwe Hucks ,  Erhard Tresper ,  Hugo Vernaleken

    发明人： Harald Selbeck ,  Claus Wulff ,  Uwe Hucks ,  Erhard Tresper ,  Hugo Vernaleken

    IPC分类号： C07F9/12 ,  C07F9/09

    CPC分类号： C07F9/12

    摘要： Phosphoric acid triesters of the formula ##STR1## are produced in two or more stages by reacting phosphorus oxyhalides, phosphorus pentahalides, phosphoric acid monoester dihalides or phosphoric acid diester halides corresponding to the following general formula:ZO PO Hal.sub.2 (ZO).sub.2 PO Halwherein Z is defined as above and Hal represents Cl and/or Br with at least one hydroxyaryl compound of the formula ##STR2## in a two-phase mixture of an organic solvent an aqueous alkaline earth metal and/or alkali metal hydroxide solution.

    摘要翻译： 通过使对应于以下通式的ZO PO Hal 2（ZO）2 PO Hal的卤代卤磷，五卤化磷，五氟化五磷酸，磷酸二酯二卤化物或磷酸二酯卤化物反应制备式“IMAGE”的磷酸三酯，其中Z 定义如上，Hal表示Cl和/或Br与至少一种式“IMAGE”的羟基芳基化合物在有机溶剂碱土金属水溶液和/或碱金属氢氧化物溶液的两相混合物中。

    Process for the preparation of neutral phosphorous acid aryl esters
    9.
    发明授权
    Process for the preparation of neutral phosphorous acid aryl esters 失效
    中性磷酸芳酯的制备方法

    公开(公告)号：US4356129A

    公开(公告)日：1982-10-26

    申请号：US213136

    申请日：1980-12-04

    申请人： Uwe Hucks ,  Erhard Tresper ,  Claus Wulff

    发明人： Uwe Hucks ,  Erhard Tresper ,  Claus Wulff

    IPC分类号： C07F9/145 ,  C08K5/526 ,  C07F9/141

    CPC分类号： C08K5/526 ,  C07F9/145

    摘要： A process for the preparation of a neutal phosphorous acid aryl ester of the general formula ##STR1## wherein a phosphorus trihalide, phosphorus acid monoester dihalide or phosphorous acid diester halide is reacted with a hydroxyaryl compound wherein an excess of hydroxyaryl compound and an excess of aqueous alkali metal hydroxide solution or suspension or alkaline earth metal hydroxide solution or suspension are employed, relative to the phosphorus halide compound, an inert water immiscible organic solvent and/or diluent is employed in an amount such that 5 to 50% strength solution of the neutral phosphorous acid aryl ester is formed and after the reaction, the organic phase is separated off and the phosphorous acid aryl ester formed is isolated by removing the solvent and/or diluent.

    摘要翻译： 制备通式为（III）的中性磷酸芳酯的方法，其中将三卤化磷，磷酸单酯二卤化物或亚磷酸二酯卤化物与羟基芳基化合物反应，其中过量的羟基芳基化合物和 使用过量的碱金属氢氧化物水溶液或悬浮液或碱土金属氢氧化物溶液或悬浮液相对于卤化磷化合物，惰性水不混溶有机溶剂和/或稀释剂的用量使得5至50％强度溶液 形成中性亚磷酸芳酯，反应后分离有机相，通过除去溶剂和/或稀释剂分离形成的亚磷酸芳酯。