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    Production of flexible polyurethane foams
    3.
    发明授权
    Production of flexible polyurethane foams 失效
    生产柔性聚氨酯泡沫

    公开(公告)号：US06228899B1

    公开(公告)日：2001-05-08

    申请号：US09252260

    申请日：1999-02-18

    申请人： Monika Wetterling ,  Marita Schuster ,  Bernd Güttes ,  Simone Kuhn

    发明人： Monika Wetterling ,  Marita Schuster ,  Bernd Güttes ,  Simone Kuhn

    IPC分类号： C08G1814

    CPC分类号： B60N2/70 ,  C08G18/4072 ,  C08G18/4883 ,  C08G18/6564 ,  C08G65/2609 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083

    摘要： Flexible foams based on polyisocyanate polyaddition products are produced by reacting polyisocyanates with compounds which are reactive toward isocyanates in the presence of catalysts, blowing agents and, if desired, flame retardants, auxiliaries and/or additives, wherein polyether polyalcohols (c) which are obtainable by addition of alkylene oxides onto substances containing active hydrogens are used as substances which are reactive toward isocyanates, where, in a first stage, at least one substance (a) containing 2 or 3 active hydrogens is reacted with at least one alkylene oxide in the presence or absence of catalysts, subsequently at least one substance (b) which contains at least four active hydrogens and, if desired, further catalyst is added to the reaction mixture from the first stage and this mixture is then reacted in a second stage with at least one alkylene oxide.

    摘要翻译： 基于多异氰酸酯加成产物的柔性泡沫体是通过使多异氰酸酯与在催化剂，发泡剂和（如果需要的话）阻燃剂，助剂和/或添加剂的存在下对异氰酸酯反应的化合物反应制备的，其中可得到的聚醚多元醇（c） 通过在含有活性氢的物质上添加环氧烷作为对异氰酸酯具有反应性的物质使用，其中在第一阶段中，至少一种含有2或3个活性氢的物质（a）与至少一种烯化氧在 存在或不存在催化剂，随后将至少一种含有至少四个活性氢的物质（b），如果需要，从第一阶段将另外的催化剂加入到反应混合物中，然后将该混合物在第二阶段与 至少一种环氧烷。

    Method for the preparation of polyether alcohols
    5.
    发明申请
    Method for the preparation of polyether alcohols 审中-公开
    聚醚醇的制备方法

    公开(公告)号：US20050215831A1

    公开(公告)日：2005-09-29

    申请号：US10514713

    申请日：2003-06-18

    申请人： Ralf Zieler ,  Iris Groth ,  Christian Buss ,  Monika Wetterling

    发明人： Ralf Zieler ,  Iris Groth ,  Christian Buss ,  Monika Wetterling

    IPC分类号： C08G65/30 ,  C07C43/11

    CPC分类号： C08G65/30

    摘要： The invention relates to a process for the work-up of polyether alcohols which have been prepared by base-catalyzed addition of ethylene oxide and propylene oxide onto H-functional starter substances and have a proportion of ethylene oxide in the polyether chain of greater than 20% by weight, preferably greater than 25% by weight, particularly preferably greater than 35% by weight and in particular greater than 50% by weight, based on the weight of the alkylene oxides used, which comprises the steps a) neutralization of the polyether alcohol with an acid subsequent to the addition reaction of the alkylene oxides, b) addition of at least one absorbent, c) removal of water and volatile compounds from the polyether alcohol, d) removal of the salts formed and the absorbents from the polyether alcohol, wherein phosphoric acid is used as acid in step a) in an amount of from 56 to 98% of the stoichiometric amount, the absorbent is used in an amount of from 0.05 to 5% by weight, based on the polyether alcohol, in step b) and at least one alkali metal hydroxide, alkaline earth metal hydroxide or amine is added to the polyether alcohol in an amount of from 0.001 to 0.5% by weight, based on the weight of the polyetherol, during the course of step c).

    摘要翻译： 本发明涉及一种用于后处理聚醚醇的方法，其通过在H官能起始物质上碱式催化加成环氧乙烷和环氧丙烷而制备，并且聚醚链中环氧乙烷的比例大于20 重量％，优选大于25重量％，特别优选大于35重量％，特别优选大于35重量％，特别优选大于50重量％，其包括以下步骤：a）中和聚醚 乙醇与烯化氧的加成反应之后的酸，b）加入至少一种吸收剂，c）从聚醚醇中除去水和挥发性化合物，d）除去形成的盐和来自聚醚醇的吸收剂 其中在步骤a）中使用磷酸作为化学计量的56-98％的量的步骤a）中的酸，吸收剂的用量为0.05-5重量％，基于p 醚醚醇，在步骤b）中，并且至少一种碱金属氢氧化物，碱土金属氢氧化物或胺以0.001至0.5重量％的量加入到聚醚醇中，基于聚乙烯醇的重量，在该过程中 的步骤c）。

    Treatment for polyether polyols
    6.
    发明授权
    Treatment for polyether polyols 失效
    聚醚多元醇的处理

    公开(公告)号：US06245947B1

    公开(公告)日：2001-06-12

    申请号：US09036758

    申请日：1998-03-09

    申请人： Bernd Guettes ,  Gerd Hoeppner ,  Monika Wetterling ,  Heinz Auer ,  Jens Bruhn ,  Stefan Dinsch ,  Juergen Winkler

    发明人： Bernd Guettes ,  Gerd Hoeppner ,  Monika Wetterling ,  Heinz Auer ,  Jens Bruhn ,  Stefan Dinsch ,  Juergen Winkler

    IPC分类号： C07C4100

    CPC分类号： C08G65/30

    摘要： A process for treating polyether polyols prepared in a conventional manner by base-catalyzed reaction of H-functional initiator substances with alkylene oxides comprises a combination of a thermal-reactive step at a pH of less than 7 and a temperature above 60° C. and a thermal-distillative step in a countercurrent column using a purifying agent. The polyether polyols prepared according to the invention are used for producing low-fogging and low-odor PUR foams.

    摘要翻译： 以常规方式制备的通过H-官能引发剂物质与环氧烷烃的碱催化反应制备的聚醚多元醇的方法包括pH小于7且温度高于60℃的热反应性步骤的组合，以及 使用净化剂的逆流塔中的热蒸馏步骤。 根据本发明制备的聚醚多元醇用于生产低雾和低气味的PUR泡沫。