| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-reflective pre-coated aluminum alloy plate which is thin and lightweight and excellent in moldability and reflection characteristics and which allows reduction in manufacturing costs. SOLUTION: A pre-coated layer 3 is formed at least on one face of a base 2 and formed of one or more layers and has a high-reflective layer 4 containing 30 pts.wt. or more of a high-reflective substance 41 relative to 100 pts.wt. of a base resin (42). A decrease ratio of specular reflection of the base resin 42 before and after forming coating is 10% or lower when a coated film having a thickness of 10μm is formed on an aluminum alloy plate having a specular reflection ratio of 80% or higher. The high-reflective substance 41 is composed of one or more selected from the group consisting of barium sulfate, titanium oxide, calcium carbonate, calcium sulfate, alumina, magnesium oxide, magnesium sulfate, magnesium silicate, zinc oxide, glass, aluminum nitride, boron nitride, silica, zirconium oxide and hollow glass beads. The mean particle size of the high-reflective substance 41 is 0.1-10μm and the film thickness of the high-reflective layer 4 is 20-150μm. COPYRIGHT: (C)2011,JPO&INPIT |
