# US 10,502,878 B2 · Systems, methods, and apparatus for production coatings of low-emissivity glass

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,502,878 B2
- Document ID: US10502878B2
- Status: Granted
- Kind: B2
- Application number: 15/666,603
- Filed: 2017-08-02
- Published: 2017-12-07
- Granted: 2019-12-10
- Earliest claimed: 2013-03-13
- Assignees: Guardian Glass, LLC
- Applicants: Guardian Glass, LLC
- Inventors: Guowen Ding; Jeremy Cheng; Muhammad Imran; Minh Huu Le; Daniel Schweigert; Yongli Xu; Guizhen Zhang
- Web page: https://patentgrep.com/patent/US10502878B2

## CPC

- G02B 5/208: {for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation}
- B29D 11/00865: {Applying coatings; tinting; colouring (printing, marking or copying processes B41M; identification in general G09F3/00; producing decorative effects in general B44C; positioning or marking of lenses B24B13/0055)}
- C03C 17/36: at least one coating being a metal
- C03C 17/3626: {one layer at least containing a nitride, oxynitride, boronitride or carbonitride}
- C03C 17/3639: {Multilayers containing at least two functional metal layers}
- C03C 17/3644: {the metal being silver}
- C03C 17/366: {Low-emissivity or solar control coatings}
- C03C 17/3681: {the multilayer coating being used in glazing, e.g. windows or windscreens}
- C03C 23/007: {by thermal treatment}
- C23C 14/083: {of refractory metals or yttrium}
- C23C 14/085: {of iron group metals}
- C23C 14/14: Metallic material, boron or silicon
- C23C 14/22: characterised by the process of coating
- E06B 9/24: Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; {Slat blinds}(operating, guiding or securing devices or arrangements for roll-type closures E06B9/56; free-hanging flexible screens A47H23/00)
- G02B 5/26: Reflecting filters (G02B5/28 takes precedence)
- G02F 1/091: {based on magneto-absorption or magneto-reflection}
- B32B 7/02: Physical, chemical or physicochemical properties
- B32B 7/023: Optical properties
- C03C 2217/43: consisting of a dispersed phase in a continuous phase
- C03C 2217/48: having a specific function
- C03C 2218/154: by sputtering
- E06B 2009/2417: {Light path control; means to control reflection}
- E06B 2009/2464: {featuring transparency control by applying voltage, e.g. LCD, electrochromic panels}
- G02F 1/094: {based on magnetophoretic effect}
- Y10T 428/24975: No layer or component greater than 5 mils thick
- Y10T 428/265: 1 mil or less
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00)
- 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
- C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04)
- E06B: FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES (shades or blinds for greenhouses A01G9/22; curtains A47H; lids for car boots or bonnets B62D25/10; skylights E04B7/18; sunshades, awnings E04F10/00)
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Disclosed herein are systems, methods, and apparatus for forming low emissivity panels. In some embodiments, a partially fabricated panel may be provided that includes a substrate, a reflective layer formed over the substrate, and a barrier layer formed over the reflective layer such that the reflective layer is formed between the substrate and the barrier layer. The barrier layer may include a partially oxidized alloy of three or more metals. A first interface layer may be formed over the barrier layer. A top dielectric layer may be formed over the first interface layer. The top dielectric layer may be formed using reactive sputtering in an oxygen containing environment. The first interface layer may prevent further oxidation of the partially oxidized alloy of the three or more metals when forming the top dielectric layer. A second interface layer may be formed over the top dielectric layer.

## Claims

### Claim 1

A coated article including a coating supported by a glass substrate, the coating comprising the following layers moving away from the glass substrate:
a dielectric layer;
an IR reflecting layer on the glass substrate over at least the dielectric layer;
a barrier layer on the glass substrate over the IR reflecting layer;
a first interface layer on the glass substrate over the IR reflecting layer and barrier layer;
a second dielectric layer on the glass substrate over at least the first interface layer;
a second interface layer on the glass substrate over at least the second dielectric layer, wherein the second dielectric layer is between and directly contacting the first and second interface layers,
wherein each of the first and second interface layers comprises at least one of zinc oxide, titanium oxide, and/or tantalum oxide,
wherein the barrier layer comprises a partially oxided alloy comprising each of nickel, titanium, and niobium, and
wherein the second dielectric layer comprises metal oxide.

### Claim 2 (depends on 1)

The coated article of claim 1, wherein the IR reflecting layer comprises silver.

### Claim 3 (depends on 1)

The coated article of claim 1, wherein the barrier layer contains less than 30% oxygen content (atomic %).

### Claim 4 (depends on 1)

The coated article of claim 1, wherein the first interface layer directly contacts the barrier layer, and wherein the barrier layer directly contacts the IR reflecting layer.