| 摘要 |
<p>Disclosed is a laminated glass which is laminated, in the following order, with a first glass substrate, a first adhesive layer, a heat reflecting film, a second adhesive layer, and a second glass substrate. The heat reflecting film is configured from: a resin film, the thermal shrinkage ratio of which in the direction, in which the thermal shrinkage ratio is the largest, is 0.5% to 3% inclusive, and the thermal shrinkage ratio of which in the direction which is orthogonal to the aforementioned direction is 0.1% to 2% inclusive; and a heat reflecting membrane formed on the aforementioned resin film. The first adhesive layer and the second adhesive layer are formed from a polyvinyl butyral film, the thermal shrinkage ratio of which in the direction, in which the thermal shrinkage ratio is the largest, is 0.5% to 3% inclusive, and the thermal shrinkage ratio of which in the direction which is orthogonal to the aforementioned direction is -2.5% to -0.5% inclusive. The direction in which the thermal shrinkage ratio of the resin film is the largest and the direction in which the thermal shrinkage ratio of the polyvinyl butyral film is the largest bisect each other at right angles. The thermal shrinkage ratio of the resin film is obtained after the resin film was kept at 150°C for 30 minutes, and the thermal shrinkage ratio of the polyvinyl butyral film is obtained after the polyvinyl butyral film was kept at 60°C for 30 minutes.</p> |
