| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin-coated aluminum alloy sheet in which a resin paint film is prevented from breaking or peeling when the sheet is subjected to wringing and drawing or when the sheet is exposed to a high-temperature, high-humidity environment. SOLUTION: The resin-coated aluminum alloy sheet for wringing and drawing processing is obtained by coating the aluminum sheet with a coating for forming a resin paint film and baking the resin paint film. The coating contains a polyester resin (a) having a number average molecular weight of 7,000-30,000 and a glass transition temperature of -20°C or above, an epoxy resin (b), and an amino resin (c). When the total contents of (a), (b), and (c) is 100 pts.mass, the content of (a) is 50-90 pts.mass, the content of (b) is 3-40 pts.mass, and the content of (c) is 5-30 pts.mass. COPYRIGHT: (C)2007,JPO&INPIT |
