An improved aqueous cathodic electrocoating composition having a binder of an epoxy-amine adduct and a polyisocyanate crosslinking agent; wherein the improvement is the use of a polyisocyanate crosslinking agent having at least one crosslinkable morpholine dione group per molecule. Electrodeposited finishes are formed that have reduced volatile emissions and film weight loss when heated to cure.
一种改进的
水性阴极电泳涂料配方,其粘合剂为环氧胺加合物和聚
异氰酸酯交联剂;其中改进的是使用至少每个分子具有一个可交联吗啉二酮基团的聚
异氰酸酯交联剂。电泳涂层在加热固化时,具有较低的挥发性排放和膜重量损失,形成电泳涂层。