| abstract |
Providing the laminated | multilayer film which hardly changes the optical characteristic by heat and hardly peels between layers. In addition, various materials such as design materials used in building materials, packaging, interior and exterior of automobiles, anti-counterfeiting materials such as holograms, liquid crystal displays, plasma displays, field emission displays, organic electronic displays, optical printing equipment, cameras, etc. Provided is a laminated film which is suitable as a reflective material or optical filter for various optical devices, a heat ray shielding window film for a vehicle material, a building material, a reflector for a solar cell, and the like. That is, it comprises the structure which laminated | stacked the layer (A layer) which consists of thermoplastic resin A, and the layer (B) layer which consists of thermoplastic resin B containing the same basic skeleton as thermoplastic resin A alternately five or more layers, respectively, and reflects, It is a laminated | multilayer film which has at least 1 peak, and the difference of the reflectance of the reflection peak before heating and the reflectance of the reflection peak after heating for 30 minutes in 150 degreeC atmosphere is 15% or less. |