Colloidal metal oxides having blocked isocyanate groups
    7.
    发明授权
    Colloidal metal oxides having blocked isocyanate groups 失效
    具有封端异氰酸酯基团的胶体金属氧化物

    公开(公告)号:US5998504A

    公开(公告)日:1999-12-07

    申请号:US54590

    申请日:1998-04-03

    Abstract: The present invention relates to colloidal metal oxides having blocked isocyanate groups, which are based on the reaction product ofA) blocked isocyanate group-containing silanes corresponding to formula (I) ##STR1## wherein R represents hydrogen or an organic group having 1 to 40 carbon atoms,X, Y and Z represent identical or different organic groups having 1 to 30 carbon atoms which are inert to isocyanate groups below 100.degree. C., provided that at least one of these groups is a C.sub.1 -C.sub.4 -alkoxy group,Q represents an organic group which contains at least one isocyanate group reacted with a blocking agent andn is 2, 3 or 4 withB) colloidal metal oxides selected from Al, Si, Ti, Ta, W, Hf, Zr, Sn and Y.The present invention also relates to the use of modified metal oxides, either alone or in combination with compounds containing at least two isocyanate-reactive groups, for the preparation of optionally expanded polyurethane plastics, lacquers or coating agents.

    Abstract translation: 本发明涉及具有封端异氰酸酯基团的胶态金属氧化物,其基于A)封端异氰酸酯基硅烷对应于其中R表示氢或具有1至40个碳原子的有机基团的式(I)的反应产物, X,Y和Z表示相同或不同的具有1至30个碳原子的有机基团,其对于低于100℃的异氰酸酯基团是惰性的,条件是这些基团中的至少一个是C 1 -C 4 - 烷氧基,Q表示有机 含有至少一个与封闭剂反应的异氰酸酯基团的基团,n为2,3或4,B)选自Al,Si,Ti,Ta,W,Hf,Zr,Sn和Y的胶态金属氧化物。本发明 还涉及使用改性金属氧化物,单独或与含有至少两个异氰酸酯反应性基团的化合物组合,用于制备任选发泡的聚氨酯塑料,漆或涂层剂。

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