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1. 发明申请

US20120027938A1 CURED ELECTRODEPOSITION COATING FILM AND PROCESS FOR FORMING A MULTI LAYERED COATING FILM 审中-公开
标题翻译：固化电沉积膜和形成多层涂膜的方法
公开(公告)号：US20120027938A1
公开(公告)日：2012-02-02
申请号：US13188890
申请日：2011-07-22
申请人： Naotaka KITAMURA , Yoichiro Enoki , Tsutomu Shigenaga
发明人： Naotaka KITAMURA , Yoichiro Enoki , Tsutomu Shigenaga
IPC分类号： C09D163/02 , C09D133/00 , B05D3/02 , C09D7/12
CPC分类号： C25D13/00 , B05D7/532 , B05D7/572 , B05D2350/60 , C08G18/2875 , C08G18/58 , C08G18/6237 , C08G18/643 , C08G18/8064 , C08G18/8077 , C09D5/4438 , C09D175/04
摘要： The present invention relates to a cured electrodeposition coating film which can be applied on a substrate such as an automobile body.The cured electrodeposition coating film has a dynamic glass transition temperature of 105 to 120° C. and a crosslink density of 1.2×10−3 to 2.0×10−3 mole/cc, and phenol structural part represented with the formula: —C6H4—O— within a range of 0.12 to 0.24 mole in molar number based on a resin solid content of 100 g in the cured electrodeposition coating film. The cured electrodeposition coating film is obtained by conducting electrodeposition coating with a cationic electrodeposition coating composition, and then heating and curing it, wherein the cationic electrodeposition coating composition comprises, cationic epoxy resin (A) having bisphenol A-type structure in its molecule, cationic acrylic resin (B) obtainable by reacting an amino group containing compound with a copolymer obtainable by radical-copolymerization of a hydroxy group containing monomer, a glycidyl group containing monomer and another monomer, blocked isocyanate curing agent (C) which is obtained by blocking a cycloaliphatic isocyanate compound with an oxime compound, and a pigment.
摘要翻译：本发明涉及一种固化的电沉积涂膜，其可以应用于诸如汽车车身的基材上。固化的电沉积涂膜的动态玻璃化转变温度为105〜120℃，交联密度为1.2×10-3〜2.0×10-3摩尔/ cc，酚结构部分为：-C 6 H 4 - O-在固化的电沉积涂膜中的基于树脂固体含量为100g的摩尔数为0.12至0.24摩尔的范围内。固化的电沉积涂膜通过用阳离子电沉积涂料组合物进行电沉积涂覆，然后加热和固化而得到，其中阳离子电沉积涂料组合物包括其分子中具有双酚A型结构的阳离子环氧树脂（A），阳离子通过使含氨基化合物与可通过使含羟基的单体，含缩水甘油基的单体和其它单体自由基共聚获得的共聚物反应而获得的丙烯酸树脂（B），通过封闭异氰酸酯固化剂（C）脂环族异氰酸酯化合物与肟化合物和颜料。

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