HOT RADIATION SHIELDING POLYESTER FILM, AND HOT RADIATION SHIELDING POLYESTER FILM LAMINATE

摘要

Disclosed is a hot radiation shielding polyester film which contains a microparticle capable of shielding a hot radiation in a dispersed state. The microparticle capable of shielding a hot radiation is a microparticle of a tungsten oxide represented by the general formula: WOand/or a microparticle of a composite tungsten oxide represented by the general formula: MWOand having a hexagonal crystal structure. The microparticle has an average dispersion particle diameter of 1 to 200 nm (inclusive). The microparticle is contained in an amount of 0.1 to 10 wt% (inclusive). The polyester film has a thickness of 10 to 300μm (inclusive).