VERFAHREN ZUM VERSEHEN EINER METALLISCHEN OBERFLÄCHE MIT EINER GLASARTIGEN SCHICHT
    5.
    发明公开
    VERFAHREN ZUM VERSEHEN EINER METALLISCHEN OBERFLÄCHE MIT EINER GLASARTIGEN SCHICHT 失效
    一种提供金属表面与玻璃体层

    公开(公告)号:EP0973958A1

    公开(公告)日:2000-01-26

    申请号:EP98922674.1

    申请日:1998-04-09

    IPC分类号: C23C18/12 C03C1/00

    摘要: Disclosed is a method for providing a metal surface with a vitreous layer which is decorative, scratch-resistant and inhibits corrosion. The inventive method is characterized in that a coating composition, which is applied to the metal surface, can be obtained by means of a method comprising hydrolysis and polycondensation of one or several silanes or general formula (I), wherein the groups X mean are identical or different from each other and mean hydrolyzable groups or hydroxyl groups, wherein radicals R are identical or different from each other and stand for hydrogen, alkyl, alkenyl or alkinyl groups with up to 12 carbon atoms and aryl, aralkyl and alkaryl groups with 6 to 10 carbon atoms, and n means 0.1 or 2, with the proviso that at least one silane is used with n= 1 or 2 or oligomers derived therefrom, in the presence of nanoscaled SiO2 particles and/or b) at least one compound from the group of oxides and hydroxides of the alkaline metals or alkaline earth metals. The coating arising therefrom can be thermally compressed to form a vitreous layer.