Coated article with IR reflecting layer and method of making same

US9403345B2 · kind B2 · utility

Assignees

• Guardian Industries Corp. · 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: Sep 15, 2015
• Grant date: Aug 2, 2016
• Expiry date: Sep 15, 2035

Classification

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

Abstract

An IG window unit includes a coating supported by a glass substrate. The coating includes at least the following: a dielectric layer comprising silicon nitride; a dielectric layer comprising an oxide of titanium; another dielectric layer; a layer comprising zinc oxide; an infrared (IR) reflecting layer comprising silver on the glass substrate, located over and directly contacting the layer comprising zinc oxide, wherein the coating includes only one IR reflecting layer; and an overcoat comprising (i) a layer comprising tin oxide and (ii) a layer comprising silicon nitride located over and contacting the layer comprising tin oxide. The IG unit may have an SHGC value of at least 0.65, a visible transmission of at least 70%, and/or an Energy Rating of at least 25.