Process for the production of multi-layer lacquer coatings on
electrically conductive substrates
    1.
    发明授权
    Process for the production of multi-layer lacquer coatings on electrically conductive substrates 失效
    在导电基材上生产多层漆涂层的方法

    公开(公告)号:US6080296A

    公开(公告)日:2000-06-27

    申请号:US202628

    申请日:1999-07-27

    摘要: A method of applying several coats to an electrically conducting substrate by applying a primer coat using electrophoresis, stoving the primer coat, applying directly to the stoved primer coat a colored and/or special effect coating layer made of an aqueous coating material containing color and/or special effect pigments and including as a binder: A) 50 to 85% by weight of one of more hybrid binder vehicles based on polyesters and on (meth)acrylic copolymers with a hydroxyl number of 100 to 350 mg KOH/g and an acid number of 20 to 60 mg KOH/g; B) 0 to 20% by weight of one or more of binder vehicles which are different from A); and C) 15 to 50% by weight of one or more free or blocked polyisocyanates and/or one or more triazine-based components which crosslink with the hydroxyl groups of component A) with the formation of ether and/or ester groups, at least 50% by weight of the (meth)acrylic copolymers of component A) being produced in the presence of at least 20% by weight of the polyester or polyesters of component A).

    摘要翻译: PCT No.PCT / EP97 / 02974 371日期:1999年7月27日 102(e)1999年7月27日PCT PCT 1997年6月7日PCT公布。 出版物WO97 / 47402 日期1997年12月18日一种通过使用电泳施加底漆涂层将底漆涂布到导电基材上的方法,烘烤底漆涂层,直接施加到底漆底漆上,由水性涂料制成的着色和/或特殊效果涂层 含有颜色和/或特效颜料并包括作为粘合剂的材料:A)基于聚酯和羟基数为100至350mg KOH的(甲基)丙烯酸共聚物,50至85重量%的混合粘合剂载体之一 g,酸值为20〜60mg KOH / g; B)0至20重量%的一种或多种与A)不同的粘合剂载体; 和C)15至50重量%的一种或多种游离或封闭的多异氰酸酯和/或一种或多种与组分A)的羟基交联的三嗪基组分,至少形成醚和/或酯基团 50重量%的组分A)的(甲基)丙烯酸共聚物在至少20重量%的聚酯或组分A)的聚酯的存在下制备。

    Method of producing multi-layer coatings
    2.
    发明授权
    Method of producing multi-layer coatings 失效
    生产多层涂料的方法

    公开(公告)号:US06025033A

    公开(公告)日:2000-02-15

    申请号:US186327

    申请日:1998-11-05

    CPC分类号: B05D7/532 C09D175/04

    摘要: A method of producing a multi-layer coating comprising the application of a color- and/or effect-imparting base lacquer coat of an aqueous base lacquer, the wet-into-wet-application on to the aqueous base lacquer coat of a clear lacquer coat of a two-component polyurethane clear lacquer, which is produced shortly before the application thereof by mixing a master lacquer component, which contains hydroxy-functional binder vehicles and solvents, with a polyisocyanate component, and joint stoving of the aqueous base lacquer and clear lacquer coats, wherein the two-component polyurethane clear lacquer which is used contains 0.01 to 1% by weight, with respect to the clear lacquer solids, of one or more additives with a surface tension-lowering effect, wherein at least 25% by weight of the additives with a surface tension-lowering effect is contained in the polyisocyanate hardener component before mixing.

    摘要翻译: 一种制备多层涂层的方法,包括施加基色漆和/或赋形剂的基漆漆,其中将湿润湿法施加到透明漆水基漆漆层上 通过将含有羟基官能的粘合剂载体和溶剂的主漆组分与多异氰酸酯组分混合而制备的双组分聚氨酯透明漆的涂层,以及在其应用前不久生产的水性基漆的清漆 其中使用的双组分聚氨酯透明漆相对于透明漆固体含有0.01至1重量%的具有表面张力降低作用的一种或多种添加剂,其中至少25重量% 的具有表面张力降低作用的添加剂在混合之前包含在多异氰酸酯硬化剂组分中。