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
    • 3. 发明申请
    • METHOD FOR PRODUCING DENDRITIC OR HYPERBRANCHED POLYURETHANES
    • 用于生产树枝状或超支化型聚氨酯
    • WO2004101624A3
    • 2005-01-27
    • PCT/EP2004005215
    • 2004-05-14
    • BASF AGBRUCHMANN BERNDSTUMBE JEAN-FRANCOIS
    • BRUCHMANN BERNDSTUMBE JEAN-FRANCOIS
    • C08G18/32C08G18/46C08G83/00
    • C08G18/4615C08G18/3278
    • The invention relates to a method for producing dendritic or hyperbranched polyurethanes consisting in 1) reacting diols and polyiols which contain at least one tertiary nitrogen atom, at least two hydroxyl groups provided with a different reactivity to isocyanate groups, with diisocyanates or polyisocyanates for obtaining an addition product, the diols and polyiols and diisocyanates or polyisocyanates being selected in such a way that said addition product contains in average one isocyanate group and several hydroxyl groups, or one hydroxyl group and several isocyanate groups; 2) transforming the addition product obtained at the stage 1) into a polyaddition product by an intermolecular reaction of the hydroxyl groups with isocyanate groups, said reaction can be preliminary carried out with a compound containing at least two hydroxyl, mercapto, amino or isocyanate groups; 3) if necessary, reacting the polyaddition product obtained at the stage 2) with the compound containing at least two hydroxyl, mercapto, amino or isocyanate groups.
    • 树枝状或超支化聚氨酯的制备是通过1进行)反应,其含有至少一个叔氮原子和与朝向与二异氰酸或异氰酸酯的异氰酸酯基团的不同反应性的至少两个羟基基团,以形成加成产物,二醇或多元醇,其中所述二醇或多元醇与 二 - 或聚异氰酸酯被选择为使得该加成产物具有异氰酸酯基和一个以上的羟基或一个羟基和来自步骤1的加成产物的平均,2)反应多于一个异氰酸酯基),以形成由与异氰酸酯基团的羟基基团的分子间反应的加聚产物 其中,含有还具有至少两个羟基,巯基,氨基或异氰酸酯化合物可以首先反应,3)如果合适的话,具有至少两个羟基基团从步骤2中的加聚产物的反应)中,Me rcaptogruppen,含基氨基或异氰酸酯化合物。