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    CATIONIC ELECTRODEPOSITION PROCESS AND COATING COMPOSITION FOR CATIONIC ELECTRODEPOSITION
    2.
    发明公开
    CATIONIC ELECTRODEPOSITION PROCESS AND COATING COMPOSITION FOR CATIONIC ELECTRODEPOSITION 无效
    KITISCHER ELEKTROBESCHICHTUNGSPROZESS UND BESCHICHTUNGSZUSAMMENSETZUNGDAFÜR

    公开(公告)号：EP0854207A1

    公开(公告)日：1998-07-22

    申请号：EP97932983.6

    申请日：1997-07-23

    申请人： Nippon Paint Co., Ltd.

    发明人： KAWAKAMI, Ichiro ,  SAKAMOTO, Hiroyuki ,  HORI, Hitoshi ,  SAITO, Takao ,  NISHIO, Masahiro

    IPC分类号： C25D13/00 ,  C09D5/44

    CPC分类号： C09D5/44

    摘要： A cation electrodeposition coating process and cation electrodeposition coating composition that have a sufficient throwing power are provided.
    A process for cationic electrodeposition coating which comprises the steps of:

    (1) immersing a substrate in a cationic electrodeposition coating composition;
    (2) applying a voltage between an anode and said substrate, which serves as a cathode, to thereby cause coat film deposition; and
    (3) further applying a voltage to the coat film deposited so as to increase electric resistance per unit volume of said coat film,
    wherein, in said step (3), coat films are deposited at those sites of the substrate where coat films have not yet been deposited,
    said cationic electrodeposition coating composition having a time point when the electric resistance per unit volume of the coat film deposited increases in the course of electrodeposition under constant-current conditions.

    摘要翻译： 提供具有足够投掷力的阳离子电沉积涂覆方法和阳离子电沉积涂料组合物。 一种用于阳离子电沉积涂层的方法，其包括以下步骤：（1）将基底浸入阳离子电沉积涂料组合物中; （2）在用作阴极的阳极和所述基板之间施加电压，从而引起涂膜沉积; （3）进一步向沉积的涂膜施加电压，以提高所述涂膜的每单位体积的电阻，其中在所述步骤（3）中，将涂膜沉积在涂覆膜具有的基板的那些部位 所述阳离子电沉积涂料组合物具有当在恒定电流条件下电沉积过程中沉积的涂膜的每单位体积的电阻增加的时间点。