公开(公告)号：US20070029200A1

公开(公告)日：2007-02-08

申请号：US11498727

申请日：2006-08-04

申请人： Toshiaki Sakamoto ,  Masaru Sakamoto ,  Yoshinori Hirahara ,  Tsutomu Shigenaga

发明人： Toshiaki Sakamoto ,  Masaru Sakamoto ,  Yoshinori Hirahara ,  Tsutomu Shigenaga

IPC分类号： C25B7/00 ,  C25D13/00

CPC分类号： C25D13/02 ,  C25D13/10 ,  C25D13/12

摘要： The present invention relates to a cationic electrodeposition coating composition comprising silica particles having pore volume of 0.44 to 1.8 ml/g and average particle size of no more than 10 μm, the composition showing square root of diffusion coefficient (√Tc) of no less than 2.5 upon diffusing a solution onto a coating film therewith; a cationic electrodeposition coating composition comprising silica particles having pore volume of 0.44 to 1.8 ml/g and average particle size of no more than 10 μm, wherein the composition shows minimum deposition pH of 11.90 to 12.00 during electrodeposition coating, and film resistance of 1,000 to 1,500 kΩ·cm2 at film thickness of 15 μm and applied voltage of 240 V; and an article coated with such cationic electrodeposition coating composition. Therefore, the present invention can also provide a coating film formed with the cationic electrodeposition coating composition which can ensure higher corrosion resistance and higher throwing power in addition to other excellent coating properties, even if the resulting coating has extremely thin film thickness (e.g., about 7 μm).

摘要翻译： 本发明涉及一种阳离子电沉积涂料组合物，其包含孔体积为0.44〜1.8ml / g，平均粒径为10μm以下的二氧化硅粒子，扩散系数平方根（√Tc）的组成不小于 将溶液扩散到其上的涂膜上; 包含孔体积为0.44〜1.8ml / g，平均粒径为10μm以下的二氧化硅粒子的阳离子电沉积涂料组合物，其中组合物在电沉积涂布期间显示最小沉积pH为11.90至12.00，膜电阻为1000〜 薄膜厚度为15μm，施加电压为240V时为1500kOgg·cm 2·2; 和涂有这种阳离子电沉积涂料组合物的制品。 因此，本发明还可以提供一种形成有阳离子电沉积涂料组合物的涂膜，除了其它优异的涂料性能外，还可以确保更高的耐腐蚀性和更高的抛光力，即使所得到的涂层具有非常薄的膜厚度（例如约 7个妈妈）。