Sun beams and heat reflecting laminated glass

• Main Author: KRAEMLING, FRANZ
• Format: Patent
• Language: English; French; German
• Published: 21.12.2005
• Edition: 7
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MINERAL OR SLAG WOOL; PERFORMING OPERATIONS; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TRANSPORTING; VEHICLES IN GENERAL; WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES

The glazing includes at least two glass pieces joined by a thermoplastic layer and a solar protection layer which reflects radiation outside the visible spectrum of solar radiation, especially infrared rays. A transparent, low-emission layer that reflects thermal radiation is located more towards the interior than the solar protection layer. The thermal radiation reflecting layer is a layer of doped metal oxide, especially fluorine-doped tin oxide, preferably deposited by pyrolysis, and has at least one sublayer and/or at least one over-layer, and especially a mechanically resistant protection layer. The solar protection layer comprises a stack of layers including at least one metal layer incorporated between two layers of metal oxide or nitride, e.g. AlN or Si3N4, in particular at least one silver-based layer. An Independent claim is given for use of the glazing as a windscreen, a side window, a rear window or roof of a car vehicle.