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    VERFAHREN ZUM BESCHICHTEN VON METALLISCHEN OBERFLÄCHEN VON SUBSTRATEN UND NACH DIESEM VERFAHREN BESCHICHTETEN GEGENSTÄNDE
    6.
    发明公开
    VERFAHREN ZUM BESCHICHTEN VON METALLISCHEN OBERFLÄCHEN VON SUBSTRATEN UND NACH DIESEM VERFAHREN BESCHICHTETEN GEGENSTÄNDE 有权
    方法用于涂覆金属表面和基材被覆物品用这种方法

    公开(公告)号：EP3110566A1

    公开(公告)日：2017-01-04

    申请号：EP15706813.1

    申请日：2015-02-27

    申请人： Chemetall GmbH

    发明人： BREMSER, Wolfgang ,  DROLL, Martin ,  SEEWALD, Oliver ,  NIESEN-WARKENTIN, Evgenija ,  SCHACHTSIEK, Lars ,  TRAUT, Manuel ,  SCHWAMB, Michael ,  WASSERFALLEN, Daniel ,  SOTKE, Vera ,  FRENKEL, Aliaksandr ,  EILINGHOFF, Ron ,  GEROLD, Stephanie ,  KHELFALLAH, Nawel

    IPC分类号： B05D7/14 ,  B05D1/18 ,  C09D5/08 ,  B05D3/02

    CPC分类号： B05D1/18 ,  B05D3/0254 ,  B05D7/14 ,  B05D7/542 ,  B05D2401/20 ,  C09D5/08 ,  C09D133/08 ,  C09D163/00 ,  C09D175/04 ,  C23F11/173

    摘要： The invention relates to a process for coating metallic surfaces of substrates with aqueous compositions, also called coating compositions hereinafter, in the form of a dispersion and/or suspension which contains at least one stabilized binder and a gel former and forms a coating based on an ionic gel with the cations leached out of the metallic surface in a pretreatment stage and/or during the contacting, in which the coating is effected by: I. providing a substrate with a cleaned metallic surface, II. contacting and coating metallic surfaces with a first aqueous composition in the form of dispersion and/or suspension, III. optionally rinsing the organic coating, IV. optionally drying the organic coating and V. coating with at least one further coating composition prior to drying and crosslinking all the layers applied, where the stabilized binders must fulfill the condition that a) an aqueous mixture of demineralized water, 0.2% to 2% by weight of the gel former and 5% to 20% by weight of the stabilized binder; b) is adjusted to a pH of 1 to 7; c) a cleaned substrate is dipped into the mixture according to b) at room temperature for at least 1 minute and d) a check is made as to whether an organic coating of at least 1 µm has been deposited, wherein e) a test is additionally conducted without gel former, in which a mixture of demineralized water and 5% to 20% by weight of the dispersion to be examined is produced; f) the mixture produced in e) is likewise adjusted to a pH of 1 to 7 and g) the test described in c) and d) is repeated.

    摘要翻译： 一种用于与wässrige涂层的表面的基底的涂层的金属表面）的组合物的方法中的分散体和/或包含至少一个稳定化的粘合剂和胶凝剂的悬浮液的形式，已经溶解掉衬底的所述金属表面的阳离子 在预处理阶段和/或接触过程中。 本发明涉及进一步寻求在离子化凝胶，其中，所述涂层是通过在进一步描述的工艺形成的基于上的涂层。