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    Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures
    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 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
    4.
    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。

    Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates of reduced iodine color number
    9.
    发明授权
    Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates of reduced iodine color number 失效
    二氯甲烷二异氰酸酯和聚苯乙烯聚异氰酸酯的还原碘颜料数量的混合物的制备

    公开(公告)号：US5208368A

    公开(公告)日：1993-05-04

    申请号：US723133

    申请日：1991-06-28

    申请人： Dietrich Scherzer ,  Roland Minges ,  Bernd Bruchmann ,  Wolfgang Heider ,  Willy van Pee ,  Peter Keller

    发明人： Dietrich Scherzer ,  Roland Minges ,  Bernd Bruchmann ,  Wolfgang Heider ,  Willy van Pee ,  Peter Keller

    IPC分类号： C07C263/10 ,  C07C263/18 ,  C07C263/20 ,  C07C265/14 ,  C08G18/76

    CPC分类号： C07C263/18 ,  C08G18/3206 ,  C08G18/48 ,  C08G18/7664

    摘要： Mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates (crude MDI) of reduced iodine color number are prepared by reacting the corresponding mixtures of diphenylmethanediamines and polyphenylpolymethylenepolyamines with phosgene in the presence of at least one inert organic solvent at elevated temperature, at least one monohydric or polyhydric polyoxyalkylene alcohol, preferably having a functionality of from 2 to 3, and advantageously having a hydroxyl number of from 20 to 1800, or mixtures thereof in an effective amount, expediently in an amount of from 0.1 to 10% by weight, based on the weight of the crude MDI, being introduced into the reaction mixture when the phosgenation is complete, the phosgene and the inert organic solvent then being removed, up to 5% by weight, based on the weight of crude MDI, of at least one phenol-based antioxidant and/or aryl phosphite being added, if desired to the reaction product, and the reaction mixture being heated.

    摘要翻译： 通过在至少一种惰性有机溶剂的存在下，在升高的温度下使相应的二苯基甲烷二胺和多苯基多亚甲基多胺与碳酰氯的混合物反应制备二苯基甲烷二异氰酸酯和聚苯基多亚甲基多异氰酸酯（粗MDI）的混合物，至少一种一元或多元聚氧化烯 醇，优选具有2至3的官能度，有利地具有20至1800的羟值，或其有效量的混合物，有利的量为0.1至10重量％，基于 当完成光气化时，将粗MDI加入到反应混合物中，然后除去光气和惰性有机溶剂至多5重量％，基于粗MDI的重量计至少一种酚类抗氧化剂 和/或亚磷酸芳基酯，如果需要加入到反应产物中，并且反应混合物被加热。