US 12,077,468 B2
Coated article having a protective coating containing silicon nitride and/or silicon oxynitride
Ashtosh Ganjoo, Allison Park, PA (US); Sudarshan Narayanan, Pittsburgh, PA (US); James J. Finley, Pittsburgh, PA (US); and Paul A. Medwick, Allison Park, PA (US)
Assigned to Vitro Flat Glass LLC, Cheswick, PA (US)
Filed by Vitro Flat Glass LLC, Cheswick, PA (US)
Filed on Oct. 10, 2019, as Appl. No. 16/598,386.
Application 16/598,386 is a continuation of application No. 16/274,767, filed on Feb. 13, 2019, granted, now 10,479,724.
Claims priority of provisional application 62/631,283, filed on Feb. 15, 2018.
Claims priority of provisional application 62/734,656, filed on Sep. 21, 2018.
Prior Publication US 2020/0039875 A1, Feb. 6, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 15/04 (2006.01); B32B 17/06 (2006.01); C03C 17/25 (2006.01); C03C 17/34 (2006.01); C03C 17/36 (2006.01); C23C 28/00 (2006.01); C23C 28/04 (2006.01)
CPC C03C 17/3626 (2013.01) [C03C 17/256 (2013.01); C03C 17/3435 (2013.01); C03C 17/36 (2013.01); C03C 17/3639 (2013.01); C03C 17/3644 (2013.01); C03C 17/3649 (2013.01); C03C 17/3652 (2013.01); C03C 17/3668 (2013.01); C03C 17/3681 (2013.01); C23C 28/04 (2013.01); C23C 28/042 (2013.01); C23C 28/048 (2013.01); C23C 28/32 (2013.01); C23C 28/322 (2013.01); C23C 28/34 (2013.01); C23C 28/345 (2013.01); C23C 28/3455 (2013.01); C23C 28/36 (2013.01); C03C 2217/212 (2013.01); C03C 2217/216 (2013.01); C03C 2217/228 (2013.01); C03C 2217/256 (2013.01); C03C 2217/258 (2013.01); C03C 2217/281 (2013.01); C03C 2217/70 (2013.01); C03C 2217/944 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A coated article comprising:
a substrate;
a first functional layer, the first function layer comprising:
a metallic layer over at least a portion of the substrate, wherein the metallic layer comprises a silver layer over at least a portion of the substrate; and
a primer layer directly over at least a portion of the silver metallic layer, wherein the primer layer comprises titanium, alloys of titanium and aluminum, or combinations thereof;
a metal oxide layer directly over at least a portion of the primer layer of the first functional layer, wherein the metal oxide layer comprises zinc stannate;
a metal oxynitride gradient layer directly over at least a portion of the metal oxide layer, wherein the metal oxynitride gradient layer comprises silicon and has a thickness ranging from 280 Å to 330 Å; and
a protective layer directly over at least a portion of the metal oxynitride layer, wherein the protective layer comprises Ti, TiAl, TiO2, TiAlO, or a combination thereof.