摘要 |
PROBLEM TO BE SOLVED: To provide a film which transmits electromagnetic waves, is free from initial coloring while having a natural metallic tone high in brightness, excellent in lightfastness and moldability, and free from interlayer peeling after molding, and maintains the metallic tone and a molding which is low in environmental load and excellent in recyclabilities, and causes no radio wave hindrance. SOLUTION: In a laminated film, at least 30 layers of at least two kinds of thermoplastic resin layers are laminated alternately in the thickness direction, and a reflectance in wavelengths of 444-1,000 nm is 30% or more. In a tensile test at 150°C, the tensile stress in the longitudinal direction and the width direction at 100% elongation of the film is 3-90 MPa, and the number of the layers 10-220 nm in thickness is larger than the number of the layers 220-320 nm in thickness. The laminated film contains at least one or more kinds of ultraviolet absorbers selected from malonic acid ester compounds or oxalic acid anilide compounds in relation to the total weight of the film. COPYRIGHT: (C)2008,JPO&INPIT
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