Spandrel coating and method

• US 9,394,197 B2
• Filed: 09/27/2012
• Issued: 07/19/2016
• Est. Priority Date: 07/12/2005
• Status: Expired due to Fees

• Current Assignee: Guardian Europe S.A.R.L.. (Interguard Holding Corp.)
• Original Assignee: Centre Luxembourgeois de Recherches Pour le Verre et la Ceramique (CRVC) SaRL
• Inventors: Kriltz, Uwe, Olbrich, Mario, Homuth, Marion, Heft, Andreas, Pfuch, Andreas, Gruenler, Bernd
• Primary Examiner(s): McDonald, Rodney
• Application Number:
  US13/628,832
• Publication Number:
  US 20130022821A1
• Time in Patent Office: 1,391 Days
• Field of Search: 204/192.26, 204/192.27, 204/192.28
• US Class Current: 1/1
• CPC Class Codes: C03C 17/3435 comprising a nitride, oxynitride, boronitride or carbonitride
• CPC Class Codes: C03C 2218/17 from a solid phase

Abstract

A coated article for use in spandrel applications and/or the like is provided. In certain example embodiments, a coating is provided to have a coating design which permits the coating to realize more predictable and/or consistent optical characteristics such as glass side reflectance, color and/or the like. Certain example embodiments of this invention relate to a method of making a coated article for spandrel applications or the like. In certain embodiments, a powder inclusive lacquer coating is used as an overcoat.

Claims

1. A coated article for use in spandrel applications, the coated article comprising:

a glass substrate;

a layer comprising titanium oxide provided on the glass substrate;

a layer comprising silicon nitride provided on the glass substrate and located directly over and directly contacting the layer comprising titanium oxide;

a colored opaque layer provided on the glass substrate over at least the layer comprising titanium oxide and the layer comprising silicon nitride; and

wherein the coated article is thermally tempered prior to application of the colored opaque layer and has a Δ

E*_g value of no more than 6.0 due to the thermal tempering.

2. The coated article of claim 1, wherein the coated article has a Δ

E*_g value of no more than 4.0 due to the thermal tempering.

3. The coated article of claim 1, wherein the coated article has a Δ

E*_g value of no more than 2.5 due to the thermal tempering, and wherein the titanium oxide is characterized by TiO_x, where x is from 1.5 to 2.3.

4. The coated article of claim 1, wherein the coated article consists essentially of the recited layers.

5. The coated article of claim 1, wherein following application of the colored opaque layer the coated article has a glass side reflectance of from about 10-14%, and glass side reflective a* color of from about −

2 to +2.

6. The coated article of claim 1, wherein the colored opaque layer comprises a powder paint inclusive layer.

7. The coated article of claim 1, wherein the colored opaque layer comprises a colored enamel frit layer.