Compounds containing allophanate, isocyanate and ortho ester groups and their use as binders
    22.
    发明申请
    Compounds containing allophanate, isocyanate and ortho ester groups and their use as binders 审中-公开
    含有脲基甲酸酯,异氰酸酯和原酸酯基团的化合物及其作为粘合剂的用途

    公开(公告)号:US20070238837A1

    公开(公告)日:2007-10-11

    申请号:US11401427

    申请日:2006-04-10

    IPC分类号: C08F283/04

    摘要: The present invention relates to a process for preparing compounds which contain allophanate groups, free NCO groups and polyortho ester groups by reacting A) one or more aliphatic and/or cycloaliphatic polyisocyanates with B) one or more polyortho esters containing at least one hydroxyl group per molecule to form NCO-functional polyurethanes and then reacting some or all of the urethane groups to form allophanate groups. The present invention relates to compounds obtained by this process and to their use as binders in coating, sealant and adhesive compositions that also contain catalysts and optionally additives.

    摘要翻译: 本发明涉及通过使A)一种或多种脂族和/或脂环族多异氰酸酯与B)一种或多种含有至少一个羟基的聚原酸酯来制备含有脲基甲酸酯基团,游离NCO基团和聚酯酯基团的化合物的方法 分子以形成NCO官能的聚氨酯,然后使一些或所有的氨基甲酸酯基团反应形成脲基甲酸酯基团。 本发明涉及通过该方法获得的化合物及其作为粘合剂在包含催化剂和任选的添加剂的涂料,密封剂和粘合剂组合物中的用途。

    Aqueous, two-component polyurethane compositions containing OH-functional polydimethylsiloxanes
    24.
    发明申请
    Aqueous, two-component polyurethane compositions containing OH-functional polydimethylsiloxanes 审中-公开
    含有OH-官能聚二甲基硅氧烷的水性双组分聚氨酯组合物

    公开(公告)号:US20070055016A1

    公开(公告)日:2007-03-08

    申请号:US11512948

    申请日:2006-08-30

    IPC分类号: C08L29/00 C08L83/06

    摘要: The present invention relates to aqueous, two-component compositions containing A) hydroxyl-containing polydimethylsiloxanes having number average molecular weights of 400 to 3000 and an average OH functionality of ≧1.8, and containing at least one structural unit of formula I) wherein R is an aliphatic, linear or branched C1 to C20 radical, R1 is a linear or branched hydroxyalkyl radical having 2 to 10 carbon atoms and R2 is either hydrogen or a linear or branched hydroxyalkyl radical having 2 to 10 carbon atoms, B) addition polymers containing hydroxyl groups and having a number average molecular weight Mn of 500 to 50,000, a hydroxyl number of 16.5 to 264 mg KOH/g solid resin, an acid number of 0 to 150 mg KOH/g solid resin and a chemically bound carboxylate and/or sulphonate group content of 5 to 417 milliequivalents per 100 g of polymer solids, and C) polyisocyanates. The present invention also relates to coatings, adhesives or sealants obtained from these compositions.

    摘要翻译: 本发明涉及包含A)含羟基的聚二甲基硅氧烷的水性双组分组合物,其数均分子量为400至3000,平均OH官能度> 1.8,并含有至少一个式I结构单元,其中R 是C 20-20脂肪族,直链或支链C 1至C 20的基团,R 1是具有2至10个碳原子的直链或支链羟烷基 R 2是氢或具有2至10个碳原子的直链或支链羟烷基,B)含有羟基并具有数均分子量M n N的加成聚合物, 500至50,000,羟值为16.5至264mg KOH / g固体树脂,酸值为0至150mg KOH / g固体树脂,化学键合的羧酸酯和/或磺酸酯基含量为每百份5至417毫当量 g聚合物固体,和C)多异氰酸酯。 本发明还涉及从这些组合物获得的涂料,粘合剂或密封剂。