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    Process for preparing reactive polyether polyols having an ethylene oxide end block
    1.
    发明授权
    Process for preparing reactive polyether polyols having an ethylene oxide end block 失效
    制备具有环氧乙烷端嵌段的活性聚醚多元醇的方法

    公开(公告)号：US07186867B2

    公开(公告)日：2007-03-06

    申请号：US10828967

    申请日：2004-04-21

    申请人： Thomas Ostrowski ,  Raimund Ruppel ,  Gerd Höppner ,  Sascha Bergmann ,  Koenraad Vandewalle ,  Eva Baum

    发明人： Thomas Ostrowski ,  Raimund Ruppel ,  Gerd Höppner ,  Sascha Bergmann ,  Koenraad Vandewalle ,  Eva Baum

    IPC分类号： C07C41/02

    CPC分类号： C08G65/2696 ,  C08G18/4841 ,  C08G18/4866 ,  C08G65/2663

    摘要： Process for preparing polyether polyols having an end block of ethylene oxide by addition of alkylene oxides onto H-functional starter substances, in which A) a polyether polyol precursor is prepared by means of double metal cyanide (DMC) catalysis in a semicontinuous mode of operation in which previously prepared polyether polyol together with the DMC catalyst are placed in a reactor and H-functional starter substance and propylene oxide are added continuously, B) the polyether polyol precursor from stage A) is reacted with propylene oxide or an ethylene oxide/propylene oxide mixture in the presence of the DMC catalyst in a continuously operating reactor to give a polyether polyol intermediate, C) the intermediate from stage B) is mixed with an alkali metal hydroxide as catalyst and D) reacted with ethylene oxide in a continuously operating reactor to give the final product, E) the catalyst is separated off from the final product obtained in stage D).

    摘要翻译： 制备具有环氧乙烷端嵌段的聚醚多元醇的方法，其通过在H-功能起始物质上加入环氧烷烃，其中A）聚醚多元醇前体是通过半连续运行模式中的双金属氰化物（DMC）催化制备的 其中将预先制备的聚醚多元醇与DMC催化剂一起放入反应器中，并连续加入H官能引发剂物质和环氧丙烷，B）将来自阶段A）的聚醚多元醇前体与环氧丙烷或环氧乙烷/丙烯 氧化物混合物在DMC催化剂存在下在连续操作的反应器中得到聚醚多元醇中间体，C）将来自阶段B）的中间体与作为催化剂的碱金属氢氧化物混合，并且D）在连续操作的反应器中与环氧乙烷反应 得到最终产物，E）将催化剂从阶段D）中得到的最终产物中分离出来。

    Preparation of polyetherols
    3.
    发明授权
    Preparation of polyetherols 失效
    聚醚类的制备

    公开(公告)号：US06563007B2

    公开(公告)日：2003-05-13

    申请号：US09915601

    申请日：2001-07-26

    申请人： Stefan Dinsch ,  Jürgen Winkler ,  Gottfried Knorr ,  Michael Reichelt ,  Gerd Höppner ,  Peter von Malotki

    发明人： Stefan Dinsch ,  Jürgen Winkler ,  Gottfried Knorr ,  Michael Reichelt ,  Gerd Höppner ,  Peter von Malotki

    IPC分类号： C07C2700

    CPC分类号： C08G65/2606 ,  C08G65/2609 ,  Y10S521/914

    摘要： Polyetherols based on solid initiator substances and liquid, hydroxyl-containing coinitiators are prepared by a catalyzed addition reaction of alkylene oxides by a process in which the initiator combination contains diols carrying ethoxy structures, the ratio of the average number of hydroxyl groups per mole of initiator combination to the number of ethoxy structures in the polyetherol being from 1:0.2 to 1:1.8 and the ratio of the amounts by weight of the diols carrying ethoxy structures to the average molecular weight of the polyetherol being from 1:2 to 1:15. The polyetherols prepared by this process are used for the preparation of PUR, in particular, rigid PUR foams.

    摘要翻译： 基于固体引发剂物质和液体的含羟基的共聚引发剂的聚醚系通过环氧烷的催化加成反应制备，其中引发剂组合含有载有乙氧基结构的二醇，每摩尔引发剂的平均羟基比例 与聚乙烯醇中的乙氧基结构的数量的组合为1:0.2至1:1.8，并且负载乙氧基结构的二醇的重量比与聚己二酸酯的平均分子量的比例为1:2至1:15 。 通过该方法制备的聚醚酯用于制备PUR，特别是刚性PUR泡沫。