Patent ID: 9452590
Filing Date: 2016-09-27
CPC Classification: B32B,B60J,Y10T

Claim Text:
1. A multilayer film comprising 50 or more layers of each of two or more thermoplastic resins having different optical properties are alternately laminated with each other, wherein said multilayer film comprises at least one layer containing a colored component whose average transmittance in a wavelength range of 400 to 450 nm or 600 to 800 nm is lower than that in 450 to 600 nm; average reflectance in a wavelength range of 900 to 1,200 nm is 70% or higher; average reflectance in a wavelength range of 1,200 to 1,400 nm is 30% or higher; both of differences between a* values (Δa*) and between b* values (Δb*), respectively, of the transmitted light of white light incoming at an incident angle of 12° and of transmitted light of white light incoming at an incident angle of 45° are 10 or less; and said multilayer film has 1) a maximum reflectance in a wavelength range of 600 to 700 nm is 15% or lower, 2) a solar reflectance of 30% or higher, and the visible light transmittance is 70% or higher, and 3) a transmittance of 80% or lower at a wavelength of 400 to 450 nm, or said multilayer film comprises a bandwidth of not less than 50 nm where transmittance is 80% or lower in a wavelength range of 600 to 800 nm.