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    • 33. 发明授权
    • Cationic electrodeposition coating composition
    • 阳离子电沉积涂料组合物
    • US5510400A
    • 1996-04-23
    • US332077
    • 1994-11-01
    • Hiroyuki KageyamaTatsuo YoshidaYoshio Kojima
    • Hiroyuki KageyamaTatsuo YoshidaYoshio Kojima
    • C09D5/44C09D17/00C08L63/02
    • C09D17/004C09D5/4492
    • The present invention provides a cationic electrodeposition coating composition which satisfies both stability of paint with time and corrosion resistance when baked at low-temperature. A cationic electrodeposition coating composition comprises:(A) a cationic resin;(B) a low-temperature dissociation type block isocyanate curing agent; and(C) a pigment paste containing a pigment dispersed in a cationic pigment dispersing resin,wherein said cationic pigment grinding resin is prepared by introducing primary amino groups into a hydrophobic resin for pigment dispersion and neutralizing with acid, said hydrophobic resin has an SP value of 10.0 to 11.0, number of amino groups in one molecule is average 1.6 to 4.0, and a weight ratio of component A:B:C is 10 to 88:10 to 50:2 to 50.
    • 本发明提供一种阳离子电沉积涂料组合物,其在低温下烘烤时既满足涂料的稳定性又具有耐腐蚀性。 阳离子电沉积涂料组合物包含:(A)阳离子树脂; (B)低温解离型嵌段异氰酸酯固化剂; 和(C)含有分散在阳离子颜料分散树脂中的颜料的颜料糊,其中所述阳离子颜料研磨树脂通过将伯氨基引入用于颜料分散的疏水性树脂中并用酸中和而制备,所述疏水性树脂具有SP值 为10.0〜11.0,一分子中的氨基数平均为1.6〜4.0,成分A:B:C的重量比为10〜88:10〜50:2〜50。