Cathode-depositing electrodeposition coating composition.

摘要

A cathode-depositing electrodeposition coating composition comprising an aqueous solution or dispersion containing
<UnorderedLists id="ula01" listStyle="none"><ListItem>(A) a reaction product of (1) epoxidized diene polymer, (2) an amine and optionally, (3) polymerizable unsaturated aliphatic acid;</ListItem><ListItem>(B) a reaction product of bisphenol epoxy resin and a polymerizable aliphatic acid;</ListItem><ListItem>(C) a blocked polyisocyanate compound; and</ListItem><ListItem>(D) manganese dioxide or an organic salt of manganese, cobalt or copper.</ListItem></UnorderedLists>

The composition gives a coating film having excellent properties when electrodepositing and baking at a relatively low baking temperature.