HEAT-RAY SHIELDING FILM, HEAT-RAY SHIELDING TRANSPARENT LAMINATED BASE MATERIAL, AND AUTOMOBILE MOUNTED WITH THE HEAT-RAY SHIELDING TRANSPARENT LAMINATED BASE MATERIAL AS WINDOW MATERIAL, AND BUILDING USING THE HEAT-RAY SHIELDING TRANSPARENT LAMINATED BASE MATERIAL AS WINDOW MATERIAL

摘要

There is provided a heat-ray shielding film mainly composed of polyvinyl acetal resin and capable of exhibiting excellent heat shielding properties, and a heat-ray shielding transparent laminated base material using the heat-ray shielding film, the heat-ray shielding film including: a compound having a heat-ray shielding function; a selective wavelength absorbing material; polyvinyl acetal resin, and a plasticizer; wherein the selective wavelength absorbing material has a transmittance profile in which a transmittance of a light having a wavelength of 550 nm is 90% or more, and a transmittance of a light having a wavelength of 450 nm is 40% or less.

主权项

1. A heat-ray shielding film comprising a compound having a heat-ray shielding function, a selective wavelength absorbing material, a polyvinyl acetal resin, and a plasticizer, wherein the selective wavelength absorbing material has a transmission profile in which a transmittance of a light having a wavelength of 550 nm is 90% or more, and a transmittance of a light having a wavelength of 450 nm is 40% or less, and a weight ratio of the compound having a heat-ray shielding function and the selective wavelength absorbing material (compound having a heat-ray shielding function/selective wavelength absorbing material) is in a range of 99/1 to 70/30.