| 摘要 |
[Problem] To provide a novel feature in which changes in the tone of an optical reflective film can be minimized even when the optical reflective film is exposed to strong sunlight over a long period of time. [Solution] An optical reflective film including, on a substrate, at least one unit in which a low-refractive-index layer and a high-refractive-index layer are laminated, wherein the high-refractive-index layer contains a resin, titanium oxide, and a compound having a phosphonic acid group or a phosphoric acid group. |
