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    Polyisocyanate mixtures, a process for their production and their use for the production of polyurethanes
    4.
    发明授权
    Polyisocyanate mixtures, a process for their production and their use for the production of polyurethanes 失效
    多异氰酸酯混合物，其生产方法及其用于生产聚氨酯的方法

    公开(公告)号：US5464921A

    公开(公告)日：1995-11-07

    申请号：US156202

    申请日：1993-11-22

    申请人： Hans-Josef Laas ,  Reinhard Halpaap ,  Christian Wamprecht ,  Hans-Ulrich Meier-Westhues ,  Wolfgang Schultz ,  Lothar Kahl

    发明人： Hans-Josef Laas ,  Reinhard Halpaap ,  Christian Wamprecht ,  Hans-Ulrich Meier-Westhues ,  Wolfgang Schultz ,  Lothar Kahl

    IPC分类号： C07C265/14 ,  C07C265/04 ,  C07C265/10 ,  C07C271/10 ,  C07C271/24 ,  C07D251/34 ,  C08G18/10 ,  C08G18/73 ,  C08G18/75 ,  C08G18/76 ,  C09D5/03 ,  C09D5/46 ,  C09D175/00 ,  C09D175/04 ,  C08G18/32

    CPC分类号： C07C265/10 ,  C07C265/04 ,  C07C271/10 ,  C07C271/24 ,  C07D251/34

    摘要： The present invention relates to polyisocyanate mixtures which are solid below 40.degree. C. and liquid above 125.degree. C. and which havea) an average isocyanate functionality of at least 2.1,b) a content of free isocyanate groups bonded to tertiary (cyclo)aliphatic carbon atoms (calculated as NCO; molecular weight=42) of 5 to 22 wt. %,c) a urethane group content calculated as --NH--CO--O--; molecular weight=59) of 2 to 30 wt. %,d) an isocyanurate group content (calculated as C.sub.3 N.sub.3 O.sub.3 ; molecular weight=126) of 0 to 30 wt. % ande) a carboxylic acid ester group content (calculated as --CO--O--; molecular weight=44) of 0 to 25 wt. % and/orf) a carbonate group content (calculated as --O--CO--O--; molecular weight=60) of from 0 to 34 wt. %with the proviso that the total amount of ester groups e) and carbonate groups f) is at least 2 wt. %.The present invention also relates to a process for the production of these polyisocyanate mixtures and to their use for the production of polyurethanes, in particular as the crosslinking component in heat-curable two-component polyurethane powder coatings for coating heat-resistant substrates.

    摘要翻译： 本发明涉及固体低于40℃和高于125℃的液体的多异氰酸酯混合物，其具有a）平均异氰酸酯官能度至少为2.1，b）结合到叔（环）的游离异氰酸酯基团的含量， 脂肪族碳原子（以NCO计算;分子量= 42）为5〜22重量份。 ％，c）以-NH-CO-O-计算的氨基甲酸酯基含量; 分子量= 59）为2〜30wt。 ％，d）异氰脲酸酯基含量（以C3N3O3计算;分子量= 126）为0〜30wt。 ％和e）羧酸酯基含量（以-CO-O-计算;分子量= 44）为0〜25重量％。 ％和/或f）0至34重量％的碳酸酯基含量（以-O-CO-O-计算;分子量= 60） ％，条件是酯基e）和碳酸酯基团f）的总量为至少2重量％。 ％。 本发明还涉及生产这些多异氰酸酯混合物的方法及其用于生产聚氨酯的方法，特别是作为用于涂覆耐热基材的可热固化双组分聚氨酯粉末涂料中的交联组分。

    Polyether-modified polyisocyanate mixtures having improved dispersibility in water
    6.
    发明授权
    Polyether-modified polyisocyanate mixtures having improved dispersibility in water 有权
    具有改善的在水中的分散性的聚醚改性的多异氰酸酯混合物

    公开(公告)号：US06426414B1

    公开(公告)日：2002-07-30

    申请号：US09312180

    申请日：1999-05-14

    申请人： Hans-Josef Laas ,  Reinhard Halpaap ,  Christian Wamprecht

    发明人： Hans-Josef Laas ,  Reinhard Halpaap ,  Christian Wamprecht

    IPC分类号： C07C27166

    CPC分类号： C09D175/04 ,  C08G18/222 ,  C08G18/283 ,  C08G18/6254 ,  C08G18/706 ,  C08G18/7837 ,  C08G18/792

    摘要： The present invention relates to water dispersible polyisocyanate mixtures prepared from aliphatic, cycloaliphatic, araliphatic and/or aromatic diisocyanates and having a) an average isocyanate functionality of at least 2.0, b) a content of 5.0 to 25.0 wt. %, based on resin solids, of isocyanate groups (calculated as NCO; molecular weight=42) and c) a content of 2 to 50 wt. %, based on resin solids, of ethylene oxide units calculated as C2H2O; molecular weight 44) incorporated within polyether chains containing an average of 5 to 35 ethylene oxide units, wherein at least 60 mole % of the polyether chains are connected via allophanate groups to two polyisocyanate molecules which are each prepared from at least two diisocyanate molecules. The present invention also relates to a process for the preparation of these water dispersible polyisocyanate.

    摘要翻译： 本发明涉及由脂族，脂环族，芳脂族和/或芳族二异氰酸酯制备的水分散性多异氰酸酯混合物，并且具有至少2.0的平均异氰酸酯官能度，b）5.0至25.0重量％的含量。 ％，基于树脂固体的异氰酸酯基团（以NCO计算;分子量= 42），和c）2〜50重量％的含量。 ％，基于树脂固体，以C 2 H 2 O计算的环氧乙烷单元; 分子量44），其包含平均5至35个环氧乙烷单元的聚醚链，其中至少60摩尔％的聚醚链通过脲基甲酸酯基团连接到两个由至少两个二异氰酸酯分子制备的多异氰酸酯分子。 本发明还涉及制备这些水分散性多异氰酸酯的方法。

    Aqueous two-component polyurethane coating compositions
    7.
    发明授权
    Aqueous two-component polyurethane coating compositions 有权
    水性双组分聚氨酯涂料组合物

    公开(公告)号：US06204323B1

    公开(公告)日：2001-03-20

    申请号：US09312111

    申请日：1999-05-14

    申请人： Christian Wamprecht ,  Hans-Josef Laas

    发明人： Christian Wamprecht ,  Hans-Josef Laas

    IPC分类号： C08J300

    CPC分类号： C08G18/792 ,  C08G18/222 ,  C08G18/6254 ,  C08G18/706 ,  C08G18/7837 ,  C09D175/04 ,  Y10T428/31551 ,  C08L2666/72

    摘要： The present invention relates to a coating composition containing A) 30 to 99 wt. % of an aqueous hydroxy- and/or amino-functional resin dispersion and B) 1 to 70 wt. % of a water dispersible polyisocyanate mixture prepared from aliphatic, cycloaliphatic, araliphatic and/or aromatic diisocyanates and having a) an average isocyanate functionality of at least 2.0, b) a content of 5.0 to 25.0 wt. %, based on resin solids, of isocyanate groups (calculated as NCO; molecular weight=42) and c) a content of 2 to 50 wt. %, based on resin solids, of ethylene oxide units calculated as C2H4O; molecular weight 44) incorporated within polyether chains containing an average of 5 to 35 ethylene oxide units, wherein at least 60 mole % of the polyether chains are connected via allophanate groups to two polyisocyanate molecules which are each prepared from at least two diisocyanate molecules. The present invention also relates to the use of these coating compositions for preparing coatings, primers and sealing compositions, in particular for automotive refinish and original equipment manufacture.

    摘要翻译： 本发明涉及一种涂料组合物，其包含A）30至99wt。 ％的羟基和/或氨基官能树脂分散体水溶液，B）1-70重量％ ％的由脂族，脂环族，芳脂族和/或芳族二异氰酸酯制备的水分散性多异氰酸酯混合物，并且具有至少2.0的平均异氰酸酯官能度，b）5.0至25.0重量％的含量。 ％，基于树脂固体的异氰酸酯基团（以NCO计算;分子量= 42），和c）2〜50重量％的含量。 ％，基于树脂固体，计算为C 2 H 4 O的环氧乙烷单元; 分子量44）掺入含有平均5至35个环氧乙烷单元的聚醚链中，其中至少60摩尔％的聚醚链通过脲基甲酸酯基团连接到两个由至少两个二异氰酸酯分子制备的多异氰酸酯分子。 本发明还涉及这些涂料组合物用于制备涂料，底漆和密封组合物的用途，特别是用于汽车修补漆和原始设备制造。