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    METHOD FOR THE PRODUCTION OF RIGID POLYURETHANE FOAMS
    41.
    发明申请
    METHOD FOR THE PRODUCTION OF RIGID POLYURETHANE FOAMS 审中-公开
    用于生产刚性聚氨酯泡沫塑料的方法

    公开(公告)号：US20090306238A1

    公开(公告)日：2009-12-10

    申请号：US12513446

    申请日：2007-11-05

    申请人： Stefan Dinsch ,  Juergen Winkler ,  Gerd Hoeppner ,  Holger Seifert

    发明人： Stefan Dinsch ,  Juergen Winkler ,  Gerd Hoeppner ,  Holger Seifert

    IPC分类号： C08G18/06 ,  C07C41/01

    CPC分类号： C08G18/5027 ,  C08G18/1808 ,  C08G18/1816 ,  C08G18/2036 ,  C08G18/4812 ,  C08G18/482 ,  C08G18/4845 ,  C08G18/7664 ,  C08G65/2627 ,  C08G2101/0025

    摘要： Process for producing rigid polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents, wherein the compounds having at least two hydrogen atoms which are reactive toward isocyanate groups comprise at least one polyether alcohol bi) which can be prepared by reacting aromatic amines with ethylene oxide and propylene oxide, with firstly propylene oxide and then ethylene oxide or a mixture of ethylene oxide and propylene oxide being added on in a first process step and the remaining amount of propylene oxide being added on in a second process step using a basic catalyst.

    摘要翻译： 通过使a）多异氰酸酯与b）在c）发泡剂存在下具有至少两个对异氰酸酯基团具有反应性的氢原子的化合物来制备硬质聚氨酯泡沫体的方法，其中具有至少两个对异氰酸酯具有反应性的氢原子的化合物 基团包含至少一个聚醚醇bi），其可以通过芳族胺与环氧乙烷和环氧丙烷反应，首先在第一工艺步骤中加入环氧丙烷，然后加入环氧乙烷或环氧乙烷和环氧丙烷的混合物， 在使用碱性催化剂的第二工艺步骤中加入环氧丙烷的剩余量。

    Method for Producing Rigid Polyurethane Foams
    49.
    发明申请
    Method for Producing Rigid Polyurethane Foams 有权
    生产刚性聚氨酯泡沫的方法

    公开(公告)号：US20070232712A1

    公开(公告)日：2007-10-04

    申请号：US11575719

    申请日：2005-09-28

    申请人： Andreas Emge ,  Holger Seifert ,  Stefan Dinsch ,  Johann Klassen ,  Christian Stelling

    发明人： Andreas Emge ,  Holger Seifert ,  Stefan Dinsch ,  Johann Klassen ,  Christian Stelling

    IPC分类号： C08G18/00

    CPC分类号： C08G18/482 ,  C08G18/4883 ,  C08G18/5027 ,  C08G18/7664 ,  C08G2101/0025 ,  C08G2101/005

    摘要： The invention relates to a process for producing rigid polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents wherein a mixture of b1) a polyether alcohol which has a functionality of 4 and a hydroxyl number of from 380 to 450 mg KOH/g and a viscosity of greater than 12 000 mPa·s and can be prepared by addition of ethylene oxide and/or propylene oxide onto TDA, b2) a polyether alcohol which has a functionality of from 5 to 7.5 and a hydroxyl number of from 380 to 480 mg KOH/g and can be prepared by addition of propylene oxide onto sucrose and/or sorbitol, b3) a polyether alcohol which has a functionality of from 2 to 4 and a hydroxyl number of from 140 to 250 mg KOH/g and can be prepared by addition of ethylene oxide and propylene oxide onto TDA or of propylene oxide onto 2-, 3- or 4-functional alcohols, amines other than TDA or castor oil derivatives, is used as compounds b) having at least two hydrogen atoms which are reactive toward isocyanate groups.

    摘要翻译： 本发明涉及通过使a）多异氰酸酯与b）具有至少两个在异氰酸酯基上反应的氢原子的化合物在c）发泡剂的反应中制备硬质聚氨酯泡沫的方法，其中b1） 具有4的官能度和380至450mg KOH / g的羟值，并且粘度大于12000mPa.s，并且可以通过在TDA上加入环氧乙烷和/或环氧丙烷来制备，b2）聚醚 醇，其功能为5至7.5，羟基数为380至480mg KOH / g，并且可以通过在蔗糖和/或山梨醇上加入环氧丙烷来制备，b3）具有以下官能度的聚醚醇： 2至4，羟基数为140至250mg KOH / g，并且可以通过在TDA或环氧丙烷上加入环氧乙烷和环氧丙烷至2-，3-或4-官能的醇，除TDA之外的胺来制备 或蓖麻油衍生物，是使用 d作为化合物b）具有至少两个对异氰酸酯基团具有反应性的氢原子。