会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 45. 发明授权
    • Isocyanate trimers containing iminooxadiazine dione groups, their
preparation and use
    • 含有亚氨基恶二嗪二酮的异氰酸酯三聚体,其制备和用途
    • US5914383A
    • 1999-06-22
    • US822072
    • 1997-04-30
    • Frank RichterJosef PedainHarald MertesCarl-Gerd Dieris
    • Frank RichterJosef PedainHarald MertesCarl-Gerd Dieris
    • C07D251/34C07D229/00C07D251/32C07D273/04C08G18/02C08G18/78C08G18/79C08G18/12
    • C07D251/32C07D273/04C08G18/022C08G18/7875C08G18/791
    • 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.
    • 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。
    • 48. 发明授权
    • Process for the production of polyisocyanate mixtures containing
uretdione and isocyanurate groups
    • 制备含有脲二酮和异氰脲酸酯基团的多异氰酸酯混合物的方法
    • US5043092A
    • 1991-08-27
    • US323538
    • 1989-03-13
    • Josef PedainKlaus KonigWinfried Dell
    • Josef PedainKlaus KonigWinfried Dell
    • C07B61/00C07D229/00C07D251/34C08G18/78C08G18/79C09D175/00C09D175/04
    • C08G18/792C07D229/00C07D251/34C08G18/798C08G2150/20
    • The present invention is directed to a process for the production of polyisocyanate mixtures containing isocyanurate groups and uretdione groups in a molar ratio of about 1:9 to 9:1 by oligomerizing a portion of the isocyanate groups of hexamethylene diisocyanate using trialkyl phosphines and/or peralkylated phosphorus acid triamides as the catalysts which accelerate the dimerization and trimerization of isocyanate groups, terminating the reaction at the desired degree of oligomerization by the addition of a catalyst poison and removing unreacted hexamethylene diisocyanate to a residual content of at most 0.5% by weight, characterized in that, before addition of the catalyst, the hexamethylene diisocyanate starting material is freed from carbon dioxide to a residual content of less than 20 ppm (weight).The present invention is also directed to the polyisocyanates containing uretdione groups and isocyanurate groups obtainable by this process and their use, optionally blocked by blocking agents for isocyanate groups, as the isocyanate component for the production of polyisocyanate polyaddition products.
    • 本发明涉及通过使用三烷基膦和/或它们的一部分使六亚甲基二异氰酸酯的一部分异氰酸酯基团低聚而制备含有摩尔比为约1:9至9:1的异氰脲酸酯基和脲二酮基团的多异氰酸酯混合物的方法和/或 全烷基化的磷酸三酰胺作为加速异氰酸酯基团的二聚和三聚的催化剂,通过加入催化剂毒物终止反应在所需的低聚度程度,并除去未反应的六亚甲基二异氰酸酯至残余含量至多0.5重量% 其特征在于,在加入催化剂之前,将六亚甲基二异氰酸酯原料从二氧化碳中除去至少于20ppm(重量)的残留量。 本发明还涉及含有脲二酮基团和异氰脲酸酯基团的多异氰酸酯基团,其可通过该方法获得,并且其用途,任选地被异氰酸酯基团的封闭剂封闭,作为用于制备多异氰酸酯加聚产物的异氰酸酯组分。