Electrodeposition coating composition containing a modified epoxy resin having chargeable groups
申请人:Nippon Paint Co., Ltd.
公开号:EP0276872A2
公开(公告)日:1988-08-03
An anodic electrodeposition composition containing a water-soluble or water-dispersible modified epoxy resin derived from an epoxy resin having two epoxide groups and at least one alcoholic hydroxy group at the terminals and the middle of the resin backbone, respectively. The modified epoxy resin has at least one polymeric side chain block bound to said alcoholic hydroxy group and at least one acid group derived from said terminal epoxide group.
一种阳极电沉积组合物,含有一种水溶性或水分散性改性环氧树脂,该改性环氧树脂来源于一种环氧树脂,该环氧树脂在树脂骨架的末端和中间分别具有两个环氧基团和至少一个醇羟基团。改性环氧树脂具有至少一个与所述醇羟基结合的聚合物侧链块和至少一个来自所述末端环氧基的酸基。