Thermosetting compositions comprising a film forming component bearing or capable of generating hydroxyl functionality, amine-aldehyde crosslinking agent, and a latent reactive catalyst compsiring the reaction product of (i) a compound bearing 2 or more epoxide groups and having a number average molecular weight (Mn) ranging from about 140 to about 10,000 and (ii) a sulfonic acid having the formula:
wherein R is selected from linear or branched alkyl groups and aryl groups.
Preferred compositions within the scope of the invention include high solids, thermosetting coating compositions suitable for automotive applications.
热固性组合物,包括含有或能产生羟基官能团的成膜成分、胺-醛
交联剂和潜伏反应催化剂,其反应产物为:(i) 含有 2 个或 2 个以上环氧基团且平均分子量(Mn)在约 140 至约 10,000 之间的化合物;(ii) 式如下的
磺酸:
其中 R 选自直链或支链烷基和芳基。
本发明范围内的优选组合物包括适用于汽车应用的高固体份热固性涂料组合物。