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    Isocyanate trimers containing iminooxadiazine dione groups, their preparation and use
    2.
    发明授权
    Isocyanate trimers containing iminooxadiazine dione groups, their preparation and use 失效
    含有亚氨基恶二嗪二酮的异氰酸酯三聚体，其制备和用途

    公开(公告)号：US5914383A

    公开(公告)日：1999-06-22

    申请号：US822072

    申请日：1997-04-30

    申请人： Frank Richter ,  Josef Pedain ,  Harald Mertes ,  Carl-Gerd Dieris

    发明人： Frank Richter ,  Josef Pedain ,  Harald Mertes ,  Carl-Gerd Dieris

    IPC分类号： C07D251/34 ,  C07D229/00 ,  C07D251/32 ,  C07D273/04 ,  C08G18/02 ,  C08G18/78 ,  C08G18/79 ,  C08G18/12

    CPC分类号： C07D251/32 ,  C07D273/04 ,  C08G18/022 ,  C08G18/7875 ,  C08G18/791

    摘要： The present invention relates to a polyisocyanate mixture containing isocyanate trimers provided thati) 30 to 100 mole percent of the trimers are iminooxadiazine diones B and ##STR1## ii) 0 to 70 mole percent of the trimers are isocyanurates A iii) less than 10 mole percent of the polyisocyanate mixture is of the uretone imine structural type, andiv) the ratio of the sum of the mole percents of trimers A and B to the mole percent of uretdiones is greater than 4:1whereinR.sup.1, R.sup.2 and R.sup.3 are the same or different and represent the groups obtained by removing an isocyanate group from an aliphatic, cycloaliphatic, aromatic and/or araliphatic isocyanate having an NCO content of less than 70% and/or their oligomers.The present invention also relates to a process for the preparation of these isocyanate trimers, mixtures of these isocyanate trimers with other polyisocyanates and compositions containing these isocyanate trimers, in which the isocyanate groups may optionally be blocked with blocking agents, and compounds containing two or more isocyanate-reactive groups.

    摘要翻译： 本发明涉及含有异氰酸酯三聚体的多异氰酸酯混合物，条件是i）30-100摩尔％的三聚体是亚氨基恶二嗪二酮B和ii）0-70摩尔％的三聚体是异氰脲酸酯A iii）小于10摩尔％ 多异氰酸酯混合物具有尿素亚胺结构型，并且iv）三聚体A和B的摩尔百分数之和与脲化合物的摩尔百分比之比大于4:1，其中R1，R2和R3相同或不同 并且表示通过从NCO含量小于70％的脂族，脂环族，芳族和/或芳脂族异氰酸酯和/或其低聚物除去异氰酸酯基而获得的基团。 本发明还涉及制备这些异氰酸酯三聚体的方法，这些异氰酸酯三聚物与其它多异氰酸酯的混合物和含有这些异氰酸酯三聚体的组合物，其中异氰酸酯基团可以任选地被封闭剂封闭，以及含有两个或多个 异氰酸酯反应性基团。

    Process for the production of polyisocyanates containing isocyanurate groups and their use
    3.
    发明授权
    Process for the production of polyisocyanates containing isocyanurate groups and their use 失效
    用于生产含有异氰脲酸酯基团的多异氰酸酯的方法及其用途

    公开(公告)号：US06765111B1

    公开(公告)日：2004-07-20

    申请号：US08784875

    申请日：1997-01-16

    申请人： Josef Pedain ,  Manfred Bock ,  Carl-Gerd Dieris

    发明人： Josef Pedain ,  Manfred Bock ,  Carl-Gerd Dieris

    IPC分类号： C08G1820

    CPC分类号： C08G18/792 ,  C07D251/34

    摘要： The present invention is directed to a process for the production of polyisocyanates containing isocyanurate groups by trimerizing a portion of the isocyanate groups of hexamethylene diisocyanate using N,N,N-trialkyl-N-benzyl-quaternary ammonium hydroxides as the trimerization catalyst, terminating the trimerization reaction at the desired degree of trimerization by adding a catalyst poison and/or by thermally deactivating the catalyst and removing unreacted hexamethylene diisocyanate to a residual content of at most 0.2% by weight, characterized in that a) the hexamethylene diisocyanate used as starting material is freed from carbon dioxide to a residual content of less than 20 ppm (weight) and b) the catalyst is used in a quantity of less than about 0.03% by weight, based on the weight of the hexamethylene diisocyanate used. The present invention is also directed to the polyisocyanates containing isocyanurate groups obtained by this process and to their use, optionally blocked by blocking agents for isocyanate groups, as the isocyanate component for the production of polyisocyanate polyaddition products.

    摘要翻译： 本发明涉及通过使用N，N，N-三烷基-N-苄基季铵氢氧化物作为三聚催化剂使六亚甲基二异氰酸酯的一部分异氰酸酯基团三聚而制备含有异氰脲酸酯基团的多异氰酸酯的方法， 通过加入催化剂毒物和/或通过使催化剂热失活并除去未反应的六亚甲基二异氰酸酯至残留含量至多为0.2重量％的三聚反应，其特征在于a）用作原料的六亚甲基二异氰酸酯是 从二氧化碳释放到残留含量小于20ppm（重量），和b）催化剂的用量小于约0.03重量％，基于所用的六亚甲基二异氰酸酯的重量。本发明还涉及 涉及通过该方法获得的含有异氰脲酸酯基团的多异氰酸酯及其用途，任选地被嵌段封端 作为异氰酸酯基团的异氰酸酯组分，用于生产多异氰酸酯加聚产物。