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    • 5. 发明授权
    • Cathodically precipitable aqueous electro-dipcoating agent
    • 阴极沉淀的水性电泳涂料
    • US4623690A
    • 1986-11-18
    • US649413
    • 1984-09-11
    • Hans-Peter PatzschkeArmin GobelReiner Bohmert
    • Hans-Peter PatzschkeArmin GobelReiner Bohmert
    • C08G18/08C08G18/83C09D5/44C09D175/12C08L51/00C08L77/00
    • C09D5/4465C08G18/0814C08G18/831C09D175/12
    • A cathodically precipitable aqueous electro-dipcoating agent which includes as Component A, 50 to 99% by mass (relative to the total quantity of Components A and B) of a synthetic resin binder having tertiary amino groups and hydroxyl groups which can be rendered water soluble by protonation with acids, and which(a) has an amine number of 35 to 120,(b) has a hydroxyl number of 50 to 400,(c) has substantially no primary, secondary and quaternary amino groups,(d) has substantially no free isocyanate groups, and(e) has substantially no blocked isocyanate groups which can react at baking temperatures of up to 200.degree. C. with hydroxyl groups present in the reaction components.The agent also includes as Component B, 1 to 50% by mass (relative to the total quantity of Components A and B) of substantially non-acid synthetic resins having at least two terminal esterified carboxyl groups which can react under normal lacquer baking conditions with Component A, accompanied by cross-linkage.
    • 一种阴极可沉淀的水性电涂布剂,其包含作为组分A的50至99质量%(相对于组分A和B的总量)的具有叔氨基和可以使水溶性的羟基的合成树脂粘合剂 (a)具有35至120的胺值,(b)羟基数为50至400,(c)基本上不含伯,仲和季氨基,(d)基本上 没有游离的异氰酸酯基团,(e)基本上没有封端的异氰酸酯基,其可以在高达200℃的烘烤温度下与反应组分中存在的羟基反应。 该试剂还包括作为组分B的1至50质量%(相对于组分A和B的总量)的基本上非酸性合成树脂,其具有至少两个可在正常漆烘烤条件下反应的末端酯化羧基, 组分A,伴有交联。