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    Cationic aliphatic polyester resins and their electrodeposition
    4.
    发明授权
    Cationic aliphatic polyester resins and their electrodeposition 有权
    阳离子脂族聚酯树脂及其电沉积

    公开(公告)号：US06423774B1

    公开(公告)日：2002-07-23

    申请号：US09531807

    申请日：2000-03-21

    申请人： Steven R. Zawacky ,  Raphael O. Kollah ,  Craig A. Wilson ,  Gregory J. McCollum ,  Robin M. Peffer ,  Geoffrey R. Webster, Jr. ,  Venkatachalam Eswarakrishnan ,  Linda K. Anderson

    发明人： Steven R. Zawacky ,  Raphael O. Kollah ,  Craig A. Wilson ,  Gregory J. McCollum ,  Robin M. Peffer ,  Geoffrey R. Webster, Jr. ,  Venkatachalam Eswarakrishnan ,  Linda K. Anderson

    IPC分类号： C08L6703

    CPC分类号： C09D5/4423 ,  Y10S524/901

    摘要： The present invention is directed to an electrodepositable composition of a resinous phase dispersed in an aqueous medium. The resinous phase includes an ionic polyester polymer prepared from a) an aromatic and/or cycloaliphatic carboxylic acid compound having at least two aromatic and/or secondary aliphatic carboxyl groups, b) a branched aliphatic, cycloaliphatic or araliphatic compound containing at least two aliphatic hydroxyl groups, the aliphatic hydroxyl groups being either secondary or tertiary hydroxyl groups or primary hydroxyl groups attached to a carbon adjacent to a tertiary or quaternary carbon, c) a compound including an ionic salt group or a group which is converted to an ionic salt group, and d) optionally, at least one hydroxyl substituted carboxylic compound comprising at least one tertiary aliphatic carboxyl group and at least two aliphatic hydroxyl groups. The present invention also includes a method for electrocoating a conductive substrate with the described electrodepositable composition. Lastly, the present invention is directed to a conductive substrate coated according to the described method.

    摘要翻译： 本发明涉及分散在水性介质中的树脂相的可电沉积组合物。 树脂相包括由a）具有至少两个芳族和/或仲脂族羧基的芳族和/或脂环族羧酸化合物制备的离子聚酯聚合物，b）包含至少两个脂族羟基的支链脂族，脂环族或芳脂族化合物 基团，脂族羟基是连接到与叔或季碳相邻的碳的仲羟基或叔羟基或伯羟基，c）包含离子盐基团或转化为离子盐基团的基团的化合物， 和d）任选地，至少一种含有至少一个叔脂族羧基和至少两个脂族羟基的羟基取代的羧酸化合物。 本发明还包括用所述电沉积组合物对导电基材进行电涂覆的方法。 最后，本发明涉及根据所述方法涂覆的导电基底。