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    Prepolymers containing isocyanate groups and a method for the production thereof
    1.
    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） ）。

    Thermally stable rigid foams based on isocyanate and having low brittleness and low thermal conductivity
    3.
    发明授权
    Thermally stable rigid foams based on isocyanate and having low brittleness and low thermal conductivity 有权
    基于异氰酸酯的热稳定的刚性泡沫体，具有低脆性和低热导率

    公开(公告)号：US06284812B1

    公开(公告)日：2001-09-04

    申请号：US09159798

    申请日：1998-09-24

    申请人： Udo Rotermund ,  Renate Hempel ,  Holger Seifert ,  Werner Schmiade

    发明人： Udo Rotermund ,  Renate Hempel ,  Holger Seifert ,  Werner Schmiade

    IPC分类号： C08G1804

    CPC分类号： C08J9/14 ,  C08G18/6607 ,  C08G2101/0025 ,  C08G2101/0058 ,  C08J2203/14 ,  C08J2203/142 ,  C08J2375/04

    摘要： Thermally stable rigid foams based on isocyanate can be produced by reacting a) polyisocyanates with b) compounds containing at least two hydrogen atoms which can react with isocyanate groups, c) water, in the presence of d) physically acting blowing agents, in the presence or absence of e) catalysts and auxiliaries and/or additives, wherein the component b) comprises bi) at least one polyether alcohol having a functionality of at least 1.5 and a hydroxyl number of from 10 to 100 mg KOH/g in an amount of from 0.2 to 80% by mass, based on b), and bii)at least one polyester alcohol in an amount of from 5 to 90% by mass, based on b), the water c) is present in an amount of at most 2% by mass, based on the sum of the components b) to e), and the component d) used comprises hydrocarbons and/or fluorine-containing hydrocarbons in an amount of from 5 to 30% by mass, based on the sum of the components b) to e).

    摘要翻译： 基于异氰酸酯的热稳定的硬质泡沫可以通过使多异氰酸酯与b）含有至少两个可与异氰酸酯基团反应的氢原子的化合物，c）在存在或不存在的情况下在d）物理作用的发泡剂存在下， ）催化剂和助剂和/或添加剂，其中组分b）包含至少一种官能度为至少1.5，羟基数为10至100mg KOH / g的聚醚醇，其量为0.2至80％ 基于b），andbii）基于b）的至少一种聚酯醇的量为5〜90质量％，水c）的含量为至多2质量％，基于 基于组分b）至e）的总和，并且使用的组分d）基于组分b）至e的总和，含有5至30质量％的烃和/或含氟烃 ）。

    Production of rigid polyurethane foams
    4.
    发明授权
    Production of rigid polyurethane foams 失效
    生产刚性聚氨酯泡沫

    公开(公告)号：US5895792A

    公开(公告)日：1999-04-20

    申请号：US935911

    申请日：1997-09-23

    申请人： Udo Rotermund ,  Renate Hempel ,  Holger Seifert ,  Werner Wiegmann

    发明人： Udo Rotermund ,  Renate Hempel ,  Holger Seifert ,  Werner Wiegmann

    IPC分类号： C08J9/12 ,  C08G18/06 ,  C08G18/48 ,  C08G18/50

    CPC分类号： C08G18/5033 ,  C08G18/482 ,  C08G2101/0025 ,  C08G2101/0033 ,  C08G2101/005 ,  C08G2101/0058 ,  C08G2101/0083

    摘要： In a process for producing rigid polyurethane foams having improved heat distortion resistance and reduced thermal conductivity by reactinga) polyisocyanates withb) compounds containing hydrogen atoms reactive toward isocyanates, in the presence ofc) water, and, if desired,d) physically acting blowing agents ande) catalysts and known auxiliaries and/or additives, the compounds b) containing hydrogen atoms reactive toward isocyanates are a polyol mixture comprisingb1) a polyol which can be prepared by addition of ethylene oxide and/or propylene oxide onto a hexitol or a hexitol mixture, with the total hexitol content of the polyol mixture being from 15 to 30% by weight, based on the polyol mixture, andb2) a polyol which can be prepared by addition of ethylene oxide and/or propylene oxide onto one or more aromatic amines, with the total amine content of the polyol mixture being from 1 to 10% by weight, based on the polyol mixture, and the amount of the polyol mixture in the component b) is from 60 to 100 parts by mass per 100 parts by mass of the component b).

    摘要翻译： 在制备具有改善的耐热变形性和降低热导率的硬质聚氨酯泡沫体的方法中，通过使a）多异氰酸酯与b）在c）水和（如果需要）d）的存在下，对含有氢原子的异氰酸酯反应的化合物d） 发泡剂和e）催化剂和已知的助剂和/或添加剂，包含对异氰酸酯具有反应性的氢原子的化合物b）是多元醇混合物，其包含b1）可以通过在己糖醇中加入环氧乙烷和/或环氧丙烷制备的多元醇 或己糖醇混合物，其中多元醇混合物的总己糖醇含量为基于多元醇混合物的15至30重量％，和b2）可通过将环氧乙烷和/或环氧丙烷加成到一个上制备的多元醇 或更多的芳族胺，多元醇混合物的总胺含量基于多元醇混合物为1至10重量％，并且组分中的多元醇混合物的量 b）相对于100质量份组分b）为60〜100质量份。

    Production of rigid polyurethanes foams with reduced density
    7.
    发明授权
    Production of rigid polyurethanes foams with reduced density 失效
    生产刚性聚氨酯发泡体，密度降低

    公开(公告)号：US6040349A

    公开(公告)日：2000-03-21

    申请号：US38388

    申请日：1998-03-11

    申请人： Gottfried Knorr ,  Udo Rotermund ,  Eva Baum ,  Holger Seifert ,  Werner Wiegmann

    发明人： Gottfried Knorr ,  Udo Rotermund ,  Eva Baum ,  Holger Seifert ,  Werner Wiegmann

    IPC分类号： C08J9/08 ,  C08G18/48 ,  C08G18/50 ,  C08G18/66 ,  C08J9/14 ,  C08G18/32

    CPC分类号： C08J9/141 ,  C08G18/482 ,  C08G18/5033 ,  C08G2101/0025 ,  C08G2101/005 ,  C08J2375/12

    摘要： A process for producing rigid polyurethane foams with reduced density by reactinga) organic and/or modified organic polyisocyanates withb) at least one higher-molecular-weight compound having 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) other auxiliaries and/or additives,is described, which comprises using, as blowing agent (d), a mixture of cyclopentane with at least one compound which is homogeneously miscible with cyclopentane selected from the class consisting of the alkanes and/or alkenes having 3 or 4 carbon atoms in the molecule and with the carbon dioxide produced from water and isocyanate, and using, as higher-molecular-weight compound (b) having at least two reactive hydrogen atoms, polyethers which contain aromatics and nitrogen.The use of the rigid foams produced in this way as insulating material is also described.

    摘要翻译： 通过使a）有机和/或改性的有机多异氰酸酯与b）至少一种具有至少两个反应性氢原子的高分子量化合物，如果需要，c）低分子量 在d）发泡剂和e）催化剂的存在下，重量增链剂和/或交联剂，e）催化剂，如果需要，f）其它助剂和/或添加剂，其包括使用作为发泡剂（d）的混合物 的环戊烷与至少一种与分子中具有3或4个碳原子的烷烃和/或烯烃与由水和异氰酸酯生成的二氧化碳类型的环戊烷可均匀混溶的化合物，并且使用较高的 - 具有至少两个反应性氢原子的分子量化合物（b），含有芳烃和氮的聚醚。 还描述了以这种方式制造的刚性泡沫作为绝缘材料的用途。

    RIGID POLYURETHANE FOAMS
    10.
    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％。