| abstract |
(57) [Problem] To provide a resin-coated aluminum material for a capacitor case in which the adhesion of a resin film is good and stable insulation is obtained. SOLUTION: In a resin-coated aluminum material having a conversion coating 2 provided on an aluminum plate 1 and a resin coating 3 provided thereon, the resin coating 3 has a number average molecular weight of 80. A resin-coated aluminum material for a capacitor case using a thermosetting resin film obtained by crosslinking a polyester resin having a hydroxyl group of from 0.002 to 28,000 with a polyol-modified blocked isocyanate compound having a number average molecular weight of from 1,000 to 5,000. Good adhesion, stable insulation without heat treatment or the like is obtained, high quality and excellent productivity, and it has a remarkable effect when used for aluminum electrolytic capacitor cases and the like. |