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    Prepolymers containing isocyanate groups and a method for the production thereof
    3.
    发明授权
    Prepolymers containing isocyanate groups and a method for the production thereof 有权
    含有异氰酸酯基团的预聚物及其制备方法

    公开(公告)号：US06495652B1

    公开(公告)日：2002-12-17

    申请号：US09673046

    申请日：2000-10-09

    申请人： Michael Reichelt ,  Udo Rotermund ,  Renate Hempel ,  Peter Falke ,  Peter von Malotki ,  Holger Seifert

    发明人： Michael Reichelt ,  Udo Rotermund ,  Renate Hempel ,  Peter Falke ,  Peter von Malotki ,  Holger Seifert

    IPC分类号： C08G1876

    CPC分类号： C09K3/1021 ,  C08G18/10 ,  C08G18/5006 ,  C08G18/7664 ,  C08G2101/0008 ,  C08G2101/0025 ,  C08G2101/0083 ,  C08G18/6674

    摘要： Prepolymers which contain isocyanate groups, have an NCO content of at least 30.0% by weight and can be prepared by reacting an isocyanate mixture consisting predominantly of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates and having a proportion of two-ring isomers of not more than 74% by weight with at least 4-functional polyols or a mixture of polyols having a mean functionality of at least 4, where the polyols or polyol mixtures have a hydroxyl number of from 200 to 1650 mg KOH/g and a number average molecular weight of less than 1100 g/mol. The present invention also provides a process for preparing these prepolymers containing isocyanate groups, provides for their use for producing polyurethanes and provides a process for producing polyurethanes by reacting at least one novel prepolymer containing isocyanate groups, if desired in admixture with further organic and/or modified organic isocyanates (a), with compounds having at least two reactive hydrogen atoms (b) in the presence of, if desired, blowing agents (c), catalysts (d) and, if desired, further auxiliaries and/or additives (e).

    摘要翻译： 含有异氰酸酯基的预聚物的NCO含量至少为30.0重量％，可以通过使主要由二苯基甲烷二异氰酸酯和聚苯基聚亚甲基多异氰酸酯组成的异氰酸酯混合物与二苯基聚亚甲基多异氰酸酯的比例为不超过74％的双环异构体比例 重量与至少4-官能多元醇或平均官能度至少为4的多元醇的混合物，其中多元醇或多元醇混合物的羟值为200至1650mg KOH / g，数均分子量小于 1100g / mol。 本发明还提供了制备这些含有异氰酸酯基团的预聚物的方法，提供了它们用于生产聚氨酯的方法，并且提供了通过使至少一种含有异氰酸酯基团的新型预聚物（如果需要）与另外的有机和/或 如果需要，发泡剂（c），催化剂（d）和（如果需要的话）其它助剂和/或添加剂（e）的存在下，改性有机异氰酸酯（a），具有至少两个反应性氢原子的化合物（b） ）。

    RIGID POLYURETHANE FOAMS
    4.
    发明申请
    RIGID POLYURETHANE FOAMS 有权
    刚性聚氨酯泡沫塑料

    公开(公告)号：US20100016461A1

    公开(公告)日：2010-01-21

    申请号：US12522002

    申请日：2008-01-09

    申请人： Holger Seifert ,  Johann Klassen ,  Louis Du Rieu ,  Werner Wiegmann ,  Guenter Matzke

    发明人： Holger Seifert ,  Johann Klassen ,  Louis Du Rieu ,  Werner Wiegmann ,  Guenter Matzke

    IPC分类号： C08G18/72

    CPC分类号： C08G18/7664 ,  C08G18/4804 ,  C08G18/797

    摘要： The invention relates to rigid polyurethane foams which can be produced by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reacted toward isocyanate groups in the presence of c) blowing agents,  wherein the polyisocyanate a) used is a mixture of diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates comprising a1) 30-35% by weight of diphenylmethane diisocyanate, a2) 21-28% by weight of polyphenylenepolymethylene polyisocyanate having three aromatic rings, a3) 8-13% by weight of polyphenylenepolymethylene polyisocyanate having four aromatic rings, a4) 24-41% by weight of polyphenylenepolymethylene polyisocyanate having five or more aromatic rings, where the percentages by weight of the components a1) to a4) are based on the total weight of the components a1) to a4) and add up to 100% by weight.

    摘要翻译： 本发明涉及硬质聚氨酯泡沫体，其可通过使a）多异氰酸酯与b）在c）发泡剂存在下与至少两个氢原子反应的化合物反应而制备，其中使用的多异氰酸酯a）是混合物 二苯基甲烷二异氰酸酯和聚亚苯基多亚甲基多异氰酸酯，其包含a1）30-35重量％的二苯基甲烷二异氰酸酯，a2）21-28重量％的具有三个芳环的聚亚苯基多亚甲基多异氰酸酯，a3）8-13重量％的具有四个芳环的聚苯基聚亚甲基多异氰酸酯 ，a4）24-41重量％的具有五个或更多个芳环的聚亚苯基多亚甲基多异氰酸酯，其中组分a1）至a4）的重量百分比基于组分a1）至a4的总重量），并加起来 100重量％。

    Preparation of polyurethanes having improved curing
    5.
    发明授权
    Preparation of polyurethanes having improved curing 失效
    改进固化的聚氨酯的制备

    公开(公告)号：US6100308A

    公开(公告)日：2000-08-08

    申请号：US900497

    申请日：1997-07-25

    申请人： Bernd Guettes ,  Stefan Dinsch ,  Gottfried Knorr ,  Holger Seifert

    发明人： Bernd Guettes ,  Stefan Dinsch ,  Gottfried Knorr ,  Holger Seifert

    IPC分类号： C08J9/12 ,  C08G18/50 ,  C08G18/65 ,  C08G101/00 ,  C08G18/48

    CPC分类号： C08G18/5033 ,  C08G2101/0025 ,  C08G2101/0041 ,  C08G2101/0083

    摘要： Polyurethanes having improved curing are prepared by reactinga) organic and/or modified organic diisocyanates and/or polyisocyanates withb) polyether polyols based on aromatic amines, able to be prepared by reacting specific amine combinations and, if desired, further coinitiators in a stage wise molecular addition of alkylene oxide, and also, if desired, further relatively high molecular weight compounds containing at least two reactive hydrogen atoms and, if desired,c) low molecular weight chain extenders and/or crosslinkers in the presence ofd) blowing agents,e) catalysts and, if desired,f) further auxiliaries and/or additives,wherein the specific amine combination used is a mixture of amines of the diphenylmethane series consisting of from 5 to 20% by weight of 4-ring amine, from 15 to 30% by weight of 3-ring amine, from 20 to 35% by weight of amines having more than 4 rings and from 25 to 50% by weight of 2-ring amine, wherein the proportions add up to 100% by weight, in combination with further aromatic amines.

    摘要翻译： 具有改进的固化的聚氨酯通过使a）有机和/或改性的有机二异氰酸酯和/或多异氰酸酯与b）基于芳族胺的聚醚多元醇反应制备，所述聚醚多元醇可以通过使特定的胺组合反应制备，如果需要， 并且如果需要，还含有至少两个反应性氢原子的进一步相对高分子量化合物，如果需要，c）在d）发泡剂存在下的低分子量增链剂和/或交联剂 ，e）催化剂，如果需要，f）其它助剂和/或添加剂，其中所用的特定胺组合是由5至20重量％的4-环胺组成的二苯基甲烷系列的胺的混合物，15 至30重量％的3-环胺，20至35重量％的具有多于4个环的胺和25至50重量％的2-环胺，其中所述比例加至100重量％ 在公司 与进一步的芳香胺混合。

    Rigid polyurethane foams
    6.
    发明授权
    Rigid polyurethane foams 有权

    公开(公告)号：US09657133B2

    公开(公告)日：2017-05-23

    申请号：US12522002

    申请日：2008-01-09

    申请人： Holger Seifert ,  Johann Klassen ,  Louis Du Rieu ,  Werner Wiegmann ,  Guenter Matzke

    发明人： Holger Seifert ,  Johann Klassen ,  Louis Du Rieu ,  Werner Wiegmann ,  Guenter Matzke

    IPC分类号： C08G18/76 ,  C08G18/79 ,  C08G18/48

    CPC分类号： C08G18/7664 ,  C08G18/4804 ,  C08G18/797

    摘要： The invention relates to rigid polyurethane foams which can be produced by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reacted toward isocyanate groups in the presence of c) blowing agents, wherein the polyisocyanate a) used is a mixture of diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates comprising a1) 30-35% by weight of diphenylmethane diisocyanate, a2) 21-28% by weight of polyphenylenepolymethylene polyisocyanate having three aromatic rings, a3) 8-13% by weight of polyphenylenepolymethylene polyisocyanate having four aromatic rings, a4) 24-41% by weight of polyphenylenepolymethylene polyisocyanate having five or more aromatic rings, where the percentages by weight of the components a1) to a4) are based on the total weight of the components a1) to a4) and add up to 100% by weight.

    Method for the production of rigid polyurethane foam
    7.
    发明授权
    Method for the production of rigid polyurethane foam 有权
    硬质聚氨酯泡沫的生产方法

    公开(公告)号：US08293807B2

    公开(公告)日：2012-10-23

    申请号：US12439826

    申请日：2007-09-06

    申请人： Andreas Emge ,  Daniel Freidank ,  Holger Seifert

    发明人： Andreas Emge ,  Daniel Freidank ,  Holger Seifert

    IPC分类号： C08G18/28

    CPC分类号： C08G18/632 ,  C08G18/4072 ,  C08G18/482 ,  C08G18/4829 ,  C08G18/635 ,  C08G18/8108 ,  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 at least one graft polyol b1) which can be prepared by in-situ polymerization of olefinically unsaturated monomers in a polyether alcohol b1i), where the polyether alcohol b1i) has a functionality of from 2 to 4 and a hydroxyl number in the range from 100 to 250 mg KOH/g, its polyether chain comprises propylene oxide and up to 20% by weight, based on the polyether alcohol b1i), of ethylene oxide, and acrylonitrile and styrene in a weight ratio of acrylonitrile:styrene of from >1:1 to 4:1 are used as olefinically unsaturated monomers, is used as compounds having at least two hydrogen atoms which are reactive toward isocyanate groups b), and the reaction is carried out in the presence of at least one compound b1ii) which has at least one olefinic double bond and is miscible with the polyether alcohol b1i).

    摘要翻译： 本发明涉及通过使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反应来生产硬质聚氨酯泡沫的方法，其中至少一种接枝多元醇b1） 可以通过在聚醚醇b1i）中的烯属不饱和单体的原位聚合制备，其中聚醚醇b1i）具有2-4的官能度和100-250mg KOH / g的羟基数，其 聚醚链包含环氧丙烷和至多20重量％，基于聚醚醇b1i）的环氧乙烷，丙烯腈和苯乙烯的丙烯腈/苯乙烯重量比为1：1至4：1的重量比用作 烯属不饱和单体用作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b），并且该反应在至少一种具有至少一种烯烃的化合物b1ii）的存在下进行 ic双键并与聚醚醇b1i）混溶。

    Method for producing rigid polyurethane foams
    9.
    发明授权
    Method for producing rigid polyurethane foams 有权
    硬质聚氨酯泡沫的制造方法

    公开(公告)号：US07893124B2

    公开(公告)日：2011-02-22

    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： C08G18/28

    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380-450mg KOH / g的羟基数值和大于12000mPa·s的粘度，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，是我们 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。