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13 条记录 (耗时 0.019 秒)

    Method for the production of bis(4-hydroxyaryl)alkanes
    4.
    发明授权
    Method for the production of bis(4-hydroxyaryl)alkanes 有权
    生产双（4-羟基芳基）烷烃的方法

    公开(公告)号：US06384288B1

    公开(公告)日：2002-05-07

    申请号：US09807645

    申请日：2001-04-16

    申请人： Steffen Kühling ,  Rolf Lanze ,  Rainer Neumann ,  Frieder Heydenreich ,  Tony van Osselaer

    发明人： Steffen Kühling ,  Rolf Lanze ,  Rainer Neumann ,  Frieder Heydenreich ,  Tony van Osselaer

    IPC分类号： C07C3768

    CPC分类号： C07C37/70 ,  C07C39/16

    摘要： A process for producing bis(4-hydroxyaryl)alkane is disclosed. The process comprise in sequence the steps of (a) passing inert gas through a melt at 150 to 230° C. that contains bis(4-hydroxyaryl)alkane and other aromatic hydroxy compounds, under conditions designed to remove said other aromatic hydroxy compounds from said melt and to obtain a stream of inert gas that contains said other aromatic hydroxy compounds (b) condensing the stream obtained in (a) to remove said other aromatic hydroxy compound, and to obtain a stream of inert gas, and (c) purifying and compressing the stream of inert gas obtained in (b), and recycling to step (a).

    摘要翻译： 公开了一种生产双（4-羟基芳基）烷烃的方法。 该方法依次包括以下步骤：（a）在设计为从其中除去所述其它芳族羟基化合物的条件下，将惰性气体通过含有双（4-羟基芳基）烷烃和其它芳族羟基化合物的150-230℃的熔体 所述熔体并且获得含有所述其它芳族羟基化合物的惰性气体流（b）将（a）中获得的流冷凝以除去所述其它芳族羟基化合物，并获得惰性气体流，和（c）纯化 并压缩（b）中获得的惰性气体流，并循环至步骤（a）。

    Device for exchanging a die plate of a prilling tower and method for the automatic exchange
    6.
    发明授权
    Device for exchanging a die plate of a prilling tower and method for the automatic exchange 失效
    用于更换造粒塔的模板的装置和用于自动交换的方法

    公开(公告)号：US06695991B1

    公开(公告)日：2004-02-24

    申请号：US09890018

    申请日：2001-07-25

    申请人： Rolf Lanze ,  Günter Holdenried ,  Rainer Neumann ,  Frieder Heydenreich ,  Tony van Osselaer

    发明人： Rolf Lanze ,  Günter Holdenried ,  Rainer Neumann ,  Frieder Heydenreich ,  Tony van Osselaer

    IPC分类号： B29B910

    CPC分类号： C07C39/16

    摘要： A device for exchanging a die plate of a molten bisphenol A prilling tower is described. The device comprises: (a) at least two die plates; (b) a guide which is in contact with the die plates; and (c) a drive mechanism, wherein the drive mechanism moves the die plates linearly and serially between an operating position and an exchange position along the guide. Also described is a process of automated operation of the device at the top of a bisphenol A prilling tower.

    摘要翻译： 描述了用于更换熔融双酚A造粒塔的模板的装置。 该装置包括：（a）至少两个模板; （b）与模板接触的导向件; 和（c）驱动机构，其中所述驱动机构沿着所述导向件在操作位置和交换位置之间线性地并且连续地移动所述模具板。 还描述了在双酚A造粒塔的顶部自动操作装置的过程。

    Polycarbonate substrates
    7.
    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

    申请人： Tony van Osselaer ,  Steffen Kühling ,  Paul Viroux ,  Hugo Plompen ,  Richard Vansant

    发明人： Tony van Osselaer ,  Steffen Kühling ,  Paul Viroux ,  Hugo Plompen ,  Richard Vansant

    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。

    Method for continuous production of dihydroxydiphenylalkanes
    8.
    发明授权
    Method for continuous production of dihydroxydiphenylalkanes 失效
    连续生产二羟基二苯基烷烃的方法

    公开(公告)号：US06294702B1

    公开(公告)日：2001-09-25

    申请号：US09423763

    申请日：1999-12-13

    申请人： Gerhard Fennhof ,  Hans-Josef Buysch ,  Gerd Fengler ,  Tony van Osselaer

    发明人： Gerhard Fennhof ,  Hans-Josef Buysch ,  Gerd Fengler ,  Tony van Osselaer

    IPC分类号： C07C3912

    CPC分类号： C07C37/86 ,  C07C37/20 ,  C07C37/74 ,  C07C39/16

    摘要： The present invention relates to a process for the continuous production of dihydroxydiphenylalkanes (bisphenols) by the reaction of fresh phenol, and of phenol obtained from the cracking of by-products, with isoalkenylphenol and ketone. In the course of this process, the reaction mixture is worked up by distillation and a high purity bisphenol is produced. The bottom products and distillates containing the by-products are cracked under basic conditions and optionally thereafter under acidic conditions. The cracked products, which substantially consist of isoalkenylphenol and phenol, are recycled, optionally after purification, with the phenol obtained during the purification of bisphenol, to the reaction to form bisphenol, and the residue obtained from cracking is disposed of.

    摘要翻译： 本发明涉及通过新鲜酚和由副产物裂解获得的苯酚与异烯基苯酚和酮的反应连续制备二羟基二苯基烷烃（双酚）的方法。 在该方法的过程中，通过蒸馏处理反应混合物，并制备高纯度双酚。 含有副产物的底部产物和馏出物在碱性条件下裂解，任选地在酸性条件下裂化。 基本上由异链烯基苯酚和苯酚组成的裂化产物任选地在纯化后与在双酚的纯化过程中获得的苯酚一起再循环到形成双酚的反应中，从裂化得到的残余物被处理。