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8 条记录 (耗时 0.037 秒)

    Preparation of polyetherols
    1.
    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。

    Preparation of polyurethanes having improved curing
    2.
    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。

    Production of rigid polyurethanes foams with reduced density
    3.
    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。

    Method for producing rigid polyurethane foams by means of graft polyhydric alcohols
    5.
    发明申请
    Method for producing rigid polyurethane foams by means of graft polyhydric alcohols 审中-公开
    通过接枝多元醇生产硬质聚氨酯泡沫的方法

    公开(公告)号：US20060058409A1

    公开(公告)日：2006-03-16

    申请号：US10530707

    申请日：2003-10-06

    申请人： Bernd Zaschke ,  Andreas Emge ,  Gottfried Knorr ,  Peter Malotki ,  Holger Seifert

    发明人： Bernd Zaschke ,  Andreas Emge ,  Gottfried Knorr ,  Peter Malotki ,  Holger Seifert

    IPC分类号： C08G18/00

    CPC分类号： C08G18/4072 ,  C08G18/632 ,  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 reactive toward isocyanate groups, in the presence of c) catalysts, and d) blowing agents, where, among the compounds having at least two hydrogen atoms reactive toward isocyanate groups, there is at least one graft polyol present capable of preparation via in-situ polymerization of ethylenically unsaturated monomers in polyether alcohols.

    摘要翻译： 本发明涉及通过使a）多异氰酸酯与b）在c）催化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的方法，和d）发泡剂，其中化合物 具有至少两个对异氰酸酯基团具有反应性的氢原子，存在至少一种能够通过烯键式不饱和单体在聚醚醇中原位聚合来制备的接枝多元醇。