# US 9,751,801 B2 · Coated article including low-emissivity coating insulating glass unit including coated article, and/or methods of making the same

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- Number: US 9,751,801 B2
- Document ID: US9751801B2
- Status: Granted
- Kind: B2
- Application number: 13/738,163
- Filed: 2013-01-10
- Published: 2013-05-16
- Granted: 2017-09-05
- Earliest claimed: 2011-02-24
- Assignees: Guardian Glass, LLC; Centre Luxembourgeois de Recherches pour le Verre et la Ceramique S.A. (C.R.V.C.)
- Applicants: Guardian Industries Corp.
- Inventors: Marcus Frank; Anton Dietrich; Greg Miller; Richard Blacker; Muhammad Imran; Jean-Marc Lemmer
- Web page: https://patentgrep.com/patent/US9751801B2

## CPC

- C03C 17/3626: {one layer at least containing a nitride, oxynitride, boronitride or carbonitride}
- C03C 17/06: with metals (C03C17/34, C03C17/44 take precedence)
- C03C 17/36: at least one coating being a metal
- C03C 17/3639: {Multilayers containing at least two functional metal layers}
- C03C 17/3652: {the coating stack containing at least one sacrificial layer to protect the metal from oxidation}
- C03C 17/366: {Low-emissivity or solar control coatings}
- Y10T 156/10: Methods of surface bonding and/or assembly therefor
- Y10T 428/12549: Adjacent to each other
- Y10T 428/12597: Noncrystalline silica or noncrystalline plural-oxide component [e.g., glass, etc.]
- C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Certain example embodiments relate to a coated article including at least one infrared (IR) reflecting layer of a material such as silver or the like in a low-E coating, and methods of making the same. In certain cases, at least one layer of the coating is of or includes nickel and/or titanium (e.g., NixTiyOz). The provision of a layer including nickel titanium and/or an oxide thereof may permit a layer to be used that has good adhesion to the IR reflecting layer, and reduced absorption of visible light (resulting in a coated article with a higher visible transmission). When a layer including nickel titanium oxide is provided directly over and/or under the IR reflecting layer (e.g., as a barrier layer), this may result in improved chemical and mechanical durability. Thus, visible transmission may be improved if desired, without compromising durability; or, durability may simply be increased.

## Claims

### Claim 1

A method of making an insulated glass (IG) unit including a coated article including a coating supported by a glass substrate, the method comprising making the coated article via steps comprising:
disposing at least one first dielectric layer on the substrate;
disposing a first layer comprising Ag on the at least one first dielectric layer;
disposing at least one second dielectric layer over the first layer comprising Ag;
disposing a second layer comprising Ag on the at least one second dielectric layer;
disposing a first layer comprising Ni and Ti over and contacting the second layer comprising Ag;
disposing at least one third dielectric layer on the first layer comprising Ni and Ti;
disposing a third layer comprising Ag on the at least one third dielectric layer;
disposing a second layer comprising Ni and Ti over and contacting the third layer comprising Ag;
disposing at least one fourth dielectric layer on the second layer comprising Ni and Ti; and
wherein each of the first and second layers comprising Ni and Ti has a metal content of from about 10-30% Ni and from about 70-90% Ti
and making the IG unit via steps comprising:
providing the coated article made in accordance with the above recited steps;
positioning a second substrate in substantially parallel spaced apart relation to the coated article so as to form a gap therebetween;
providing an edge seal between the coated article and the second substrate,
wherein the coating of the coated article is provided on surface 2 or surface 3 of the IG unit; and
wherein the IG unit has a LSG of greater than or equal to 2.15.

### Claim 2 (depends on 1)

The method of claim 1, wherein the coating has a sheet resistance of less than or equal to about 1.2.

### Claim 3 (depends on 2)

The method of claim 2, wherein the coated article has a visible transmission of at least 65%.

### Claim 4 (depends on 1)

The method of claim 1, wherein the second substrate and the substrate of the coated article are each about 6 mm thick, and wherein the gap between the coated article and the second substrate is about 12 mm.

### Claim 5 (depends on 1)

The method of claim 1, wherein the first dielectric layer comprises zinc oxide, and wherein the first layer comprising Ag is located on and directly contacting the first dielectric layer.

### Claim 6 (depends on 5)

The method of claim 5, wherein the fourth dielectric layer comprises silicon nitride.

### Claim 7 (depends on 1)

The method of claim 1, wherein at least one of the layers comprising Ni and Ti is from 10-45 angstroms thick.