Coated article with IR reflecting layer and method of making same

US9816316B2 · kind B2 · utility

Assignees

• Guardian Glass, LLC · US
• Centre Luxembourgeois de Recherches pour le Verre et la Ceramique S.A. (C.R.V.C.) · LU

Inventors

• Jingyu Lao · Saline, US
• Philip J. Lingle · Temperance, US
• Brent Boyce · Novi, US
• Bernd Disteldorf · Mettlach, DE
• Richard Blacker · Farmington Hills, US

Key dates

• Filing date: Jul 19, 2016
• Grant date: Nov 14, 2017
• Expiry date: Jul 19, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/265
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A low-E coating supported by a glass substrate, the coating from the glass substrate outwardly including at least the following layers: a dielectric layer of or including silicon nitride; a high index layer having a refractive index of at least 2.1; another dielectric layer of or including silicon nitride; a layer comprising zinc oxide; an infrared (IR) reflecting layer, wherein the coating includes only one IR reflecting layer; and an overcoat including (i) a layer comprising tin oxide and (ii) a layer comprising silicon nitride located over and contacting the layer comprising tin oxide. An IG unit including the coating may have a visible transmission of at least 70%.