A vehicle window glass (10) includes a first glass sheet (1), a second glass sheet (2) and an interlayer film (3) sandwiched between a second surface (S2) of the first glass sheet and a third surface (S3) of the second glass sheet. For weight reduction, at least one of the glass sheets (1, 2) has a thickness of 2.0 mm or smaller. The interlayer film (3) has a main part (4) provided with a rigid layer and a peripheral part (5) formed of a non-rigid layer. The peripheral part (5) is disposed along an upper side of the vehicle window glass (10) which is exposed to air. Contact of water with the rigid layer of the main part (4) is prevented by the non-rigid layer of the peripheral part (5). The rigid layer has a water content controlled to 0.5% or lower as measured by near-infrared spectroscopy.
VEHICLE WINDOW GLASS
FAHRZEUGSCHEIBENGLAS
VITRE DE VÉHICULE
2022-08-24
Patent
Elektronische Ressource
Englisch
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 |