| abstract |
(57) [Summary] [Structure] On a metal plate, a dicarboxylic acid containing an aromatic dicarboxylic acid, a polyester resin composed of an ethylene oxide and / or propylene oxide adduct of bisphenol A and an aliphatic glycol, and an amino resin are contained. A precoated steel sheet having an undercoating film made of the above undercoating paint and an overcoating film made of the topcoat paint containing a polyester resin. [Effect] Remarkably excellent deep drawing workability is demonstrated, it can be used as a member of electrical products, and improvement in productivity can be expected. |