URETHANE CURING AGENT FOR ELECTRODEPOSITION PAINT WITH IMPROVED APPEARANCE AND CORROSION RESISTANCE, AND CATIONIC RESIN COMPOSITION FOR ELECTRODEPOSITION PAINT AND ELECTRODEPOSITION PAINT COMPOSITION, CONTAINING SAME

摘要

The present invention relates to: a urethane curing agent for an electrodeposition paint; and a cationic resin composition for an electrodeposition paint and an electrodeposition paint composition, containing the same, and more specifically, to: a urethane curing agent for an electrodeposition paint comprising a polyisocyanate blocked by a blocking agent comprising a monohydric alcohol and a polyhydric (dihydric or trihydric) alcohol in a specific molar ratio, and capable of providing a thin film-type electrodeposition paint film showing a remarkable appearance and corrosion resistance; and a cationic resin composition for an electrodeposition paint and an electrodeposition paint composition.