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    Polyisocyanates containing allophanate and silane groups
    3.
    发明授权
    Polyisocyanates containing allophanate and silane groups 有权
    含有脲基甲酸酯和硅烷基团的聚异氰酸酯

    公开(公告)号：US07956209B2

    公开(公告)日：2011-06-07

    申请号：US12171737

    申请日：2008-07-11

    申请人： Hans-Josef Laas ,  Reinhard Halpaap

    发明人： Hans-Josef Laas ,  Reinhard Halpaap

    IPC分类号： C07F7/18

    CPC分类号： C08G18/289 ,  C07F7/1804 ,  C08G18/7837 ,  C08G71/04

    摘要： The invention relates to polyisocyanates containing allophanate groups and silane groups, to a process for preparing them and to their use as a starting component in the production of polyurethane polymers, more particularly as a crosslinker component in polyurethane paints and coatings.

    摘要翻译： 本发明涉及含有脲基甲酸酯基团和硅烷基团的多异氰酸酯，其制备方法以及它们在聚氨酯聚合物生产中作为起始成分的用途，更特别地涉及聚氨酯涂料和涂料中的交联剂组分。

    Self-crosslinking polyurethane dispersions and a process for their preparation
    7.
    发明申请
    Self-crosslinking polyurethane dispersions and a process for their preparation 审中-公开
    自交联聚氨酯分散体及其制备方法

    公开(公告)号：US20070004856A1

    公开(公告)日：2007-01-04

    申请号：US11475691

    申请日：2006-06-27

    申请人： Jan Mazanek ,  Dorota Greszta-Franz ,  Sebastian Dorr ,  Jurgen Meixner ,  Reinhard Halpaap ,  Helmut Muller ,  Olaf Fleck ,  Heino Muller

    发明人： Jan Mazanek ,  Dorota Greszta-Franz ,  Sebastian Dorr ,  Jurgen Meixner ,  Reinhard Halpaap ,  Helmut Muller ,  Olaf Fleck ,  Heino Muller

    IPC分类号： C08G18/08

    CPC分类号： C08G18/8064 ,  C08G18/0823 ,  C08G18/4219 ,  C08G18/8048 ,  C08G18/807 ,  C08G18/8077 ,  C09D175/06

    摘要： The present invention relates to a process for preparing self-crosslinking polyurethane dispersions by I) reacting a1) polyisocyanates with a2) at least one hydroxyl component having an average OH functionality of ≧2 and a number average molecular weight of 62 to 2500 g/mol, wherein the hydroxyl component contains at least one acid-functional compound containing at least one isocyanate-reactive group, to form an NCO-functional and optionally OH-functional prepolymer, II) then reacting the NCO-functional and optionally OH-functional prepolymer with a3) a hydroxyl component having an average OH functionality of >1 and a4) optionally another polyisocyanate component, which may be the same as or different from a1), to form an OH-functional and NCO-free polyurethane, III) adding a blocked polyisocyanate either before, during or after the reaction of steps I) and II), or forming a blocked polyisocyanate in situ from a polyisocyanate and a blocking agent after the reaction of step II) has taken place, IV) neutralizing the acid groups of the resulting composition by adding a5) a neutralizing agent, and V) dispersing the resulting composition in water. The present invention also relates to the dispersions prepared by the present invention and to their use in coating, adhesive and sealant compositions.

    摘要翻译： 本发明涉及一种制备自交联聚氨酯分散体的方法，其方法是使a1）多异氰酸酯与a2）至少一种平均OH官能度> = 2，数均分子量为62〜2500g / mol，其中所述羟基组分含有至少一种含有至少一个异氰酸酯反应性基团的酸官能化合物，以形成NCO-官能和任选的OH-官能预聚物，II）然后使所述NCO-官能和任选的OH-官能预聚物 其中a3）具有平均OH官能度> 1的羟基组分和a4）任选地可以与a1）相同或不同的另一种多异氰酸酯组分，以形成OH-官能和无NCO的聚氨酯，III）加入 在步骤I）和II）的反应之前，期间或之后封闭的多异氰酸酯，或在步骤II）的反应之后由多异氰酸酯和封闭剂原位形成封端多异氰酸酯具有ta 呃地方，IV）通过添加a）中和剂中和所得组合物的酸基，和V）将得到的组合物分散在水中。 本发明还涉及由本发明制备的分散体及其在涂料，粘合剂和密封剂组合物中的用途。

    Process for the production of light-colored uretdione polyisocyanates
    10.
    发明授权
    Process for the production of light-colored uretdione polyisocyanates 有权
    生产浅色脲二酮多异氰酸酯的方法

    公开(公告)号：US6043332A

    公开(公告)日：2000-03-28

    申请号：US129584

    申请日：1998-08-05

    申请人： Hans-Josef Laas ,  Reinhard Halpaap ,  Hans-Ulrich Meier-Westhues ,  Ulrich Freudenberg

    发明人： Hans-Josef Laas ,  Reinhard Halpaap ,  Hans-Ulrich Meier-Westhues ,  Ulrich Freudenberg

    IPC分类号： C08G18/02 ,  C08G18/16 ,  C08G18/79 ,  C08K5/524 ,  C09D5/46 ,  C08G18/00 ,  C07D229/00 ,  C07D273/00 ,  C08G18/08 ,  C08G18/22

    CPC分类号： C08G18/798 ,  C08G18/027 ,  C08G18/168 ,  C08K5/524 ,  C08G2150/20

    摘要： The present invention relates to a process for the production of polyisocyanates containing uretdione groups bya) oligomerizing a portion of the isocyanate groups of diisocyanates having aliphatically and/or cycloaliphatically bound isocyanate groups in the presence of catalysts or catalyst systems which accelerate the dimerization of isocyanate groups and in the presence of trisubstituted phosphite stabilizers corresponding to formula (I) ##STR1## b) optionally termination of the oligomerization reaction at a degree of oligomerization of 10 to 60% by adding a catalyst poison andc) optionally removing unreacted diisocyanate by extraction or thin-layer distillation.The present invention also relates to the use of the resulting uretdione polyisocyanates as a starting component for polyurethane plastics, particularly as an isocyanate component for the production of uretdione hardeners for powder coating compositions.

    摘要翻译： 本发明涉及一种通过以下方法生产含脲二酮基团的多异氰酸酯的方法：a）在催化剂或催化剂体系存在下使一部分具有脂族和/或环状结合的异氰酸酯基团的异氰酸酯基团的异氰酸酯基团低聚，这加快了异氰酸酯的二聚 并且在对应于式（I）的三取代的亚磷酸酯稳定剂的存在下，b）通过加入催化剂毒物以10至60％的低聚度任意地终止低聚反应，和c）任选地通过萃取或稀释除去未反应的二异氰酸酯， 层蒸馏。 本发明还涉及使用所得的脲二酮多异氰酸酯作为聚氨酯塑料的起始组分，特别是作为制备用于粉末涂料组合物的脲二酮硬化剂的异氰酸酯组分。