To provide a vehicular door glass which is composed of a laminated glass formed by using an infrared-reflective film, which is excellent in heat insulating property, has good appearance, and is suppressed in the occurrence of poor appearance, especially, on an end.SOLUTION: A vehicular door glass includes a laminated glass in which a first glass plate, a first adhesive layer, an infrared-reflective film, a second adhesion layer and a second glass plate are laminated in this order, wherein the infrared-reflective film includes a laminate in which 100 or more layers of resin layers having different refractive indices are laminated, a thermal shrinkage in a direction with a maximum thermal shrinkage and a thermal shrinkage in a direction perpendicular to the maximum direction exceeds more than 0.6% and is less than 1.2% (thermal shrinkage is a reduction rate with a length in a prescribed direction before and after having been held at 150°C for 30 minutes), and in a region where the laminated glass is visible in a front view when the door glass for the vehicle is mounted on the vehicle, the outer periphery of the infrared-reflective film is positioned within a range to 10 mm inside from the outer periphery of the laminated glass in the front view.SELECTED DRAWING: Figure 1
【課題】赤外線反射フィルムを用いた合わせガラスからなる車両用ドアガラスであって、遮熱性に優れるとともに、外観が良好であり、特に端部の外観不良の発生が抑制された車両用ドアガラスを提供する。【解決手段】第1のガラス板、第1の接着層、赤外線反射フィルム、第2の接着層および第2のガラス板がこの順に積層された合わせガラスを含み、赤外線反射フィルムは、屈折率の異なる樹脂層が100層以上積層された積層体を含み、熱収縮率の最大方向および該方向に直交方向の熱収縮率が0.6%を超え1.2%未満であり(熱収縮率は、150℃で30分間保持した前後における所定方向の長さの縮小率)、車両に取り付けたときに正面視で合わせガラスが視認可能な領域において、赤外線反射フィルムの外周が正面視で合わせガラスの外周から内側に10mmまでの範囲内に位置する、車両用ドアガラス。【選択図】図1
VEHICULAR DOOR GLASS
車両用ドアガラス
2023-08-18
Patent
Electronic Resource
Japanese
IPC: | C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge |