利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

32 条记录 (耗时 0.025 秒)

    Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures
    2.
    发明授权
    Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures 失效
    使用含有氨基甲酸酯基团的二苯基甲烷二异氰酸酯基聚异氰酸酯混合物和改性多异氰酸酯混合物制备不含氯氟烃的柔性聚氨酯泡沫体

    公开(公告)号：US5597885A

    公开(公告)日：1997-01-28

    申请号：US430926

    申请日：1995-06-07

    申请人： Heinz-Dieter Lutter ,  Bernd Bruchmann ,  Claudia Spang ,  Roland Minges ,  Dietrich Scherzer ,  Michael Lugmayr ,  Ruth Zschiesche

    发明人： Heinz-Dieter Lutter ,  Bernd Bruchmann ,  Claudia Spang ,  Roland Minges ,  Dietrich Scherzer ,  Michael Lugmayr ,  Ruth Zschiesche

    IPC分类号： C08G18/12 ,  C08G18/48 ,  C08G18/10

    CPC分类号： C08G18/4812 ,  C08G18/12 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0058 ,  C08G2101/0083

    摘要： The invention relates to a process for the preparation of CFC-free, flexible polyurethane foams or molded foams by reactingA) liquid polyisocyanate mixtures containing bonded urethane groups and having a content of NCO groups of from 20 to 30% by weight, these mixtures themselves being prepared by reacting a mixture of diphenylmethane diisocyanates and polyphenyl-polymethylene polyisocyanates (crude diphenylmethane diisocyanate) with a polyether-polyol mixture, having a hydroxyl number of from 120 to 25, of at least one polyoxypropylene glycol and at least one trifunctional polyoxypropylene-polyoxyethylene glycol having a content of ethylene oxide units of from 90 to 10% by weight or by reacting 4,4'-diphenylmethane diisocyanate (diphenylmethyl diisocyanate) or an diphenylmethane diisocyanate isomer mixture with said polyether-polyol mixture to give an NCO-containing quasi-prepolymer and diluting this quasi-prepolymer with crude diphenylmethane diisocyanate, withB) relatively high-molecular-weight polyhydroxyl compounds.

    摘要翻译： 本发明涉及一种制备无CFC的柔性聚氨酯泡沫或模制泡沫的方法，其通过使A）含有键合的氨基甲酸酯基团的液体多异氰酸酯混合物并且具有20至30重量％的NCO基团的含量，这些混合物本身 通过使二苯基甲烷二异氰酸酯和聚苯基 - 多亚甲基多异氰酸酯（粗二苯基甲烷二异氰酸酯）与羟基数为120至25的聚醚 - 多元醇混合物的混合物与至少一种聚氧丙烯二醇和至少一种三官能聚氧丙烯 - 聚氧乙烯 乙二醇的含量为90〜10重量％的环氧乙烷单元，或通过使4,4'-二苯基甲烷二异氰酸酯（二苯基甲基二异氰酸酯）或二苯基甲烷二异氰酸酯异构体混合物与所述聚醚 - 多元醇混合物反应，得到含NCO的准 - 预聚物，并用粗二苯基甲烷二异氰酸酯稀释该准预聚物，B）相对较高 小重量多羟基化合物。

    Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures of this type
    3.
    发明授权
    Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures of this type 失效
    使用含有氨基甲酸酯基团的二苯基甲烷二异氰酸酯基聚异氰酸酯混合物和该类型的改性多异氰酸酯混合物制备不含氟氯化碳的柔性聚氨酯泡沫体

    公开(公告)号：US5596063A

    公开(公告)日：1997-01-21

    申请号：US430924

    申请日：1995-06-08

    申请人： Heinz-Dieter Lutter ,  Bernd Bruchmann ,  Claudia Spang ,  Roland Minges ,  Dietrich Scherzer ,  Michael Lugmayr ,  Ruth Zschiesche

    发明人： Heinz-Dieter Lutter ,  Bernd Bruchmann ,  Claudia Spang ,  Roland Minges ,  Dietrich Scherzer ,  Michael Lugmayr ,  Ruth Zschiesche

    IPC分类号： C08G18/12 ,  C08G18/48 ,  C08G18/10

    CPC分类号： C08G18/4812 ,  C08G18/12 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0058 ,  C08G2101/0083

    摘要： The invention relates to a process for the preparation of CFC-free, flexible polyurethane foams or molded foams by reactingA) liquid polyisocyanate mixtures containing bonded urethane groups and having a content of NCO groups of from 20 to 30% by weight, these mixtures themselves being prepared by reacting a mixture of diphenylmethane diisocyanates and polyphenyl-polymethylene polyisocyanates (crude diphenylmethane diisocyanate) with a polyether-polyol mixture, having a hydroxyl number of from 120 to 25, of at least one polyoxypropylene glycol and at least one trifunctional polyoxypropylene-polyoxyethylene glycol having a content of ethylene oxide units of from 90 to 10% by weight or by reacting 4,4'-diphenylmethane diisocyanate (diphenylmethyl diisocyanate) or an diphenylmethane diisocyanate isomer mixture with said polyether-polyol mixture to give an NCO-containing quasi-prepolymer and diluting this quasi-prepolymer with crude diphenylmethane diisocyanate, withB) relatively high-molecular-weight polyhydroxyl compounds.

    摘要翻译： 本发明涉及一种制备无CFC的柔性聚氨酯泡沫或模制泡沫的方法，其通过使A）含有键合的氨基甲酸酯基团的液体多异氰酸酯混合物并且具有20至30重量％的NCO基团的含量，这些混合物本身 通过使二苯基甲烷二异氰酸酯和聚苯基 - 多亚甲基多异氰酸酯（粗二苯基甲烷二异氰酸酯）与羟基数为120至25的聚醚 - 多元醇混合物的混合物与至少一种聚氧丙烯二醇和至少一种三官能聚氧丙烯 - 聚氧乙烯 乙二醇的含量为90〜10重量％的环氧乙烷单元，或通过使4,4'-二苯基甲烷二异氰酸酯（二苯基甲基二异氰酸酯）或二苯基甲烷二异氰酸酯异构体混合物与所述聚醚 - 多元醇混合物反应，得到含NCO的准 - 预聚物，并用粗二苯基甲烷二异氰酸酯稀释该准预聚物，B）相对较高 小重量多羟基化合物。

    Process for the preparation of fluorochlorohydrocarbon-free, low-density polyurethan soft foams and soft elastic polyurethan molding foams and polyisocyanate mixtures modified with urethan groups on diphenylmethane-diisocyanate base
    6.
    发明授权
    Process for the preparation of fluorochlorohydrocarbon-free, low-density polyurethan soft foams and soft elastic polyurethan molding foams and polyisocyanate mixtures modified with urethan groups on diphenylmethane-diisocyanate base 失效
    用于制备氟代氯代烃，低密度聚氨酯软泡沫和柔性弹性聚氨酯成型泡沫的方法和在二苯基甲烷二异氰酸酯基础上用氨基甲酸酯基团改性的多异氰酸酯混合物

    公开(公告)号：US5374667A

    公开(公告)日：1994-12-20

    申请号：US24589

    申请日：1993-03-01

    申请人： Werner Hinz ,  Ruth Zschiesche ,  Heinz-Dieter Lutter ,  Bernd Bruchmann

    发明人： Werner Hinz ,  Ruth Zschiesche ,  Heinz-Dieter Lutter ,  Bernd Bruchmann

    IPC分类号： C08G18/10 ,  C08G18/48 ,  C08G18/76 ,  C08G18/80 ,  C08G18/00

    CPC分类号： C08G18/8035 ,  C08G18/10 ,  C08G18/4837 ,  C08G18/7664 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083 ,  Y10S521/914

    摘要： The invention provides a method for the preparation of fluorochlorohydrocarbon(FCHC)-free polyurethane soft (molded) foam materials with low density, by reactingA) liquid polyisocyanate mixtures containing bound urethane groups, containing 22 to 30 weight percent of NCO groups, which in turn are prepared by reacting a mixture of diphenylmethane-diisocyanate and polyphenyl-polymethylene-polyisocyanates (raw MDI) with at least one polyoxypropylene-polyoxyethylene-polyol with a functionality between 2.5 and 3.5, a hydroxyl number between 50 and 90 and a polymerized ethylene oxide group concentration ranging from more than 30 to less than 50 weight percent, relative to the weight of the polymerized ethylene oxide and 1,2 propylene oxide groups, or by reacting of 4,4'diphenylmethane-diisocyanate (MDI) or and MDI-isomeric mixture with the above-named polyoxypropylene-polyoxyethylene-polyol to an NCO-group-containing quasi-prepolymer, and diluting this quasi-prepolymer with raw-MDI, withB) higher-molecular polyhydroxyl compounds and, if appropriateC) low-molecular chain lengthening and/or cross-linkage-promoting materialsD) propellants,E) catalysts as well as if appropriate,F) auxiliary materials and/or additives, as well as the polyisocyanate mixtures modified with urethane groups (A) which are utilizable in accordance with the process of the invention.

    摘要翻译： 本发明提供了一种通过使含有22-30％（重量）NCO基团的结合的氨基甲酸酯基团的液体多异氰酸酯混合物反应来制备低密度的氟氯烃（FCHC） - 软质（模塑）泡沫材料的方法， 通过使二苯基甲烷 - 二异氰酸酯和聚苯基 - 多亚甲基多异氰酸酯（原MDI）与至少一种官能度在2.5和3.5之间，羟基数在50和90之间的聚氧化丙烯 - 聚氧乙烯 - 多元醇与聚合的环氧乙烷 相对于聚合的环氧乙烷和1,2-环氧丙烷基团的重量，或通过4,4'-二苯基甲烷二异氰酸酯（MDI）或MDI异构体（MDI）的反应，组浓度范围从大于30至小于50重量％ 与上述聚氧丙烯 - 聚氧乙烯 - 多元醇的混合物与含有NCO基的准预聚物混合，并用B-MDI稀释该准预聚物，B） 高分子量多羟基化合物，如果合适C）低分子链延长和/或交联促进材料D）推进剂，E）催化剂以及适当的F）辅助材料和/或添加剂，以及 用氨基甲酸酯基团（A）改性的多异氰酸酯混合物，其可根据本发明的方法使用。

    Reactive polymers and isocyanate-reactive polymers obtainable therefrom
    9.
    发明授权
    Reactive polymers and isocyanate-reactive polymers obtainable therefrom 有权
    可由其获得的反应性聚合物和异氰酸酯反应性聚合物

    公开(公告)号：US06433124B1

    公开(公告)日：2002-08-13

    申请号：US09561239

    申请日：2000-04-28

    申请人： Bernd Bruchmann ,  Hans Renz ,  Heinz-Dieter Lutter

    发明人： Bernd Bruchmann ,  Hans Renz ,  Heinz-Dieter Lutter

    IPC分类号： C08G1830

    CPC分类号： C08G18/2875 ,  C08G18/2835 ,  C08G18/3296 ,  C08G18/6677

    摘要： In a compound of the formula I (reactive polymer), L is a, polymer, XY is a reactive radical which is inert toward NCO groups and splits off one or more protective groups Y under acidic, neutral or basic conditions and the radical X bears, after Y has been split off, at least two groups which are reactive toward isocyanates. Also provided are processes for preparing such a polymer and for preparing V a polymer polyol which is obtainable by reacting a polymer of the formula I with an acid or base. A polymer polyol as is obtainable by treatment of a reactive polymer according to the present invention in the neutral, acidic or basic range can be used to produce a polyaddition product or polycondensation product.

    摘要翻译： 在式I化合物（反应性聚合物）中，L是聚合物，XY是在酸性，中性或碱性条件下对NCO基团是惰性的并分解一个或多个保护基团Y的反应性基团，并且基团X 在Y分离后，至少有两组对异氰酸酯反应。 还提供了制备这种聚合物和制备V聚合物多元醇的方法，其可通过使式I的聚合物与酸或碱反应而获得。 通过根据本发明的反应性聚合物在中性，酸性或碱性范围内处理可获得的聚合物多元醇可用于制备加聚产物或缩聚产物。