Patent ID: 7618711

Claim:
A resin coated metal plate comprising: a metal plate, and a resin coating layer formed on said metal plate, said resin coating layer comprising a resin coating composition that has undergone both primary and secondary curing; wherein the resin coating composition comprises 40-60 wt % of a conductive filler, 5-25 wt % of a corrosion inhibitor, a matrix resin, a primary crosslinking agent, and a secondary crosslinking agent; wherein the matrix resin consists of a flexible epoxy resin and a polyester resin provided in a mixing ratio of 60 to 90 wt %:40 to 10 wt %; wherein the primary and secondary crosslinking agents either have different crosslinking reaction commencement temperatures or have different crosslinking reaction rates with a substantially same crosslinking reaction commencement temperature; said secondary crosslinking agent exhibiting a relatively high crosslinking reaction commencement temperature or a relatively low crosslinking reaction rate; said primary crosslinking agent exhibiting a relatively low crosslinking reaction commencement temperature or a relatively high crosslinking reaction rate; wherein the resin coated metal plate is produced by: (a) applying the resin coating composition to the metal plate; (b) performing primary curing of the resin coating composition, allowing the primary crosslinking agent to react with the matrix resin; wherein the primarily cured resin coating composition has a modulus of elasticity of not more than 3 GPa; and (c) performing secondary curing of the resin coating composition, allowing the secondary crosslinking agent to react with the primarily cured resin coating composition.