Blocked biuretized isocyanates
    10.
    发明授权
    Blocked biuretized isocyanates 有权
    封闭的缩二脲化异氰酸酯

    公开(公告)号:US07371807B2

    公开(公告)日:2008-05-13

    申请号:US10970740

    申请日:2004-10-21

    摘要: The present invention is directed to blocked biuret group-containing polyisocyanate compositions, wherein the blocking agent is of the formula: wherein R1, R2, R3 and R4 may be the same or different and represent a moiety selected from the group consisting of hydrogen, C1-C6-alkyl and C3-C6-cycloalkyl, R5 represents a moiety selected from the group consisting of C1-C10-alkyl and C3-C10-cycloalkyl, and B is a group according to one of the following structural formulas wherein each occurrence of R6, R7, and R8 may be the same or different and represent a moiety selected from the group consisting of C1-C6-alkyl and C3-C6-cycloalkyl and R9 is a moiety selected from the group consisting of hydrogen, C1-C6-alkyl and C3-C6-cycloalkyl.

    摘要翻译: 本发明涉及封闭的含缩二脲基团的多异氰酸酯组合物,其中所述封闭剂具有下式:其中R 1,R 2,R 3, R 4和R 4可以相同或不同,表示选自氢,C 1 -C 6烷基, - 烷基和C 3 -C 6 - 环烷基,R 5表示选自C 1〜C 6 - C 1 -C 10 - 烷基和C 3 -C 10 - 环烷基,B是根据以下结构式之一的基团 其中R 6,R 7和R 8的每次出现可以相同或不同,并且表示选自以下的部分: C 1 -C 6 - 烷基和C 3 -C 6 - 环烷基和R 9 - / SUP>是选自氢,C 1 -C 6 - 烷基和C 3 -C 3 - 烷基的部分, 6 环烷基。