High-reflection glass panel

US9187366B2 · kind B2 · utility

Assignee

• AGC GLASS EUROPE · BE

Inventors

• Laurent Dusoulier · Aubel, BE
• Dominique Coster · Temploux, BE

Key dates

• Filing date: Mar 9, 2011
• Grant date: Nov 17, 2015
• Expiry date: Sep 23, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/266
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a glass panel, including at least one reflective layer deposited by cathode sputtering, said layer consisting of one or more oxides of one of the metals including Ta, Nb, Zr or the mixed oxides of said metals, the thickness of the layer in question and optionally other layers present in the assembly having a refractive index greater than 2.2 being selected such that, on a 4-mm thick sheet of clear “float” glass, said layer(s) result(s) in a reflection of at least 15% and a light transmission of at least 60%, the layer or system of layers in question further having a mechanical and/or chemical resistance comparable to those of layers produced by pyrolysis for obtaining products having the same type of optical properties.