IP Library › Granted Patent US 10,703,673
Granted Patent B2
US 10,703,673 · App. 16/423,489 · Granted Jul 7, 2020

Solar control coating with discontinuous metal layer

Inventors: Adam D. Polcyn (Pittsburgh, PA); Andrew V. Wagner (Pittsburgh, PA); Harry Buhay (Allison Park, PA); Abhinav Bhandari (Solon, OH); James J. Finley (Pittsburgh, PA); Paul R. Ohodnicki, Jr. (Allison Park, PA); Dennis J. O'Shaughnessy (Allison Park, PA); Jeffrey A. Benigni (McGrann, PA); Paul A. Medwick (Allison Park, PA); James P. Thiel (Lihue, HI)
Assignee: Vitro Flat Glass LLC
C03C17/36C03C17/366C03C17/3618C03C17/3639C03C2217/42Y10T428/12542Y10T428/12549Y10T428/24851Y10T428/24917
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Quick Facts
Patent No.
US 10,703,673
App. No.
16/423,489
Granted
Jul 7, 2020
Kind
B2
Abstract

An architectural transparency includes a substrate; a first dielectric layer over at least a portion of the substrate, a first metallic layer over the first dielectric layer, a first primer layer over the first metallic layer, a second dielectric layer over the first primer layer, a second metallic layer over the second dielectric layer, a second primer layer over the second metallic layer, a third dielectric layer over the second primer layer, a third metallic layer over the third dielectric layer, a third primer layer over the third dielectric layer, and a fourth dielectric layer over the third primer layer. At least one of the metallic layers is a subcritical metallic layer.

Claims (61)

1. A coated article, comprising:

a substrate; and

a coating over at least a portion of the substrate, the coating comprising:

a first dielectric layer formed over at least a portion of the substrate, wherein the first dielectric layer comprises a first film and a second film;

a first metallic layer over the first dielectric layer;

a first primer layer over the first metallic layer;

a second dielectric layer over the first primer layer, wherein the second dielectric layer comprises a first film and a second film;

a second metallic layer over the second dielectric layer;

a second primer layer over the second metallic layer;

a third dielectric layer over the second primer layer, wherein the third dielectric layer comprises a first film and a second film;

a third metallic layer over the third dielectric layer;

a third primer layer over the third metallic layer; and

a fourth dielectric layer over the third primer layer, wherein the fourth dielectric layer comprises a first film and a second film;

wherein at least one of the metallic layers is a discontinuous metallic layer; and

wherein the coated article has a visible light reflectance ranging from 20% to 40%.

2. The article of claim 1 , wherein the subcritical metallic layer has an effective thickness of less than 50 Å.

3. The article of claim 1 , wherein the second dielectric layer further comprises a third film deposited over the second film.

4. The article of claim 1 , wherein the third dielectric layer further comprises a third film deposited over the second film.

5. The article of claim 1 , wherein the first dielectric layer comprises a metal oxide, an oxide of a metal alloy, a nitride, an oxynitride, or a mixture thereof.

6. The article of claim 1 , wherein the first film or the second film of the first dielectric layer comprises silicon nitride, silicon aluminum nitride, or aluminum nitride.

7. The article of claim 1 , wherein the subcritical metallic layer comprises silver, gold, copper, palladium, or a mixture thereof.

8. The article of claim 1 , wherein the first film of the second dielectric layer comprises a metal oxide.

9. The article of claim 1 , further comprising a protective coating over the fourth dielectric layer.

10. A coated article, comprising:

a substrate; and

a coating over at least a portion of the substrate, the coating comprising:

a first dielectric layer formed over at least a portion of the substrate, wherein the first dielectric layer comprises a first film and a second film;

a first continuous metallic layer over the first dielectric layer;

a first primer layer over the first continuous metallic layer;

a second dielectric layer over the first primer layer comprises a first film and a second film;

a second discontinuous metallic layer over the second dielectric layer;

a second primer layer over the second discontinuous metallic layer;

a third dielectric layer over the second primer layer, wherein the third dielectric layer comprises a first film, and a second film;

a third continuous metallic layer over the third dielectric layer;

a third primer layer over the third continuous metallic layer;

a fourth dielectric layer over the third primer layer, wherein the fourth dielectric layer comprises a first film and a second film; and

a protective coating over the fourth dielectric layer;

wherein the coated article has a visible light reflectance ranging from 20% to 40%.

11. The article of claim 10 , wherein the second discontinuous metallic layer has an effective thickness of less than 50 Å.

12. The article of claim 10 , wherein the second dielectric layer further comprises a third film deposited over the second film.

13. The article of claim 10 , wherein the third dielectric layer further comprises a third film deposited over the second film.

14. The article of claim 10 , wherein the first film or the second film of the first dielectric layer comprises a metal oxide, an oxide of a metal alloy, a nitride, an oxynitride, or mixtures thereof.

15. The article of claim 10 , wherein the protective coating comprises titania, silica, alumina, or a mixture thereof.

16. A coated article, comprising:

a substrate; and

a coating over at least a portion of the substrate, the coating comprising:

a first dielectric layer formed over at least a portion of the substrate, wherein the first dielectric layer comprises a first film and a second film;

a first metallic layer over the first dielectric layer, wherein the first metallic layer comprises silver, gold, copper, palladium or a mixture thereof;

a first primer layer over the first metallic layer;

a second dielectric layer over the first primer layer, wherein the second dielectric layer comprises a first film, a second film, and a third film;

a second metallic layer over the second dielectric layer, wherein the second metallic layer comprises silver, gold, copper, palladium or a mixture thereof;

a second primer layer over the second metallic layer;

a third dielectric layer over the second primer layer, wherein the third dielectric layer comprises a first film, a second film, and a third film;

a third metallic layer over the third dielectric layer, wherein the third metallic layer comprises silver, gold, copper, palladium or a mixture thereof;

a third primer layer over the third metallic layer; and

a fourth dielectric layer over the third primer layer, wherein the fourth dielectric layer comprises a first film and a second film;

wherein at least one of the metallic layers is a discontinuous metallic layer having an effective thickness of less than 50 Å; and

wherein the coated article has a visible light reflectance ranging from 20% to 40%.

17. The article of claim 16 , wherein the first film or the second film of the first dielectric layer comprises a metal oxide, an oxide of a metal alloy, a nitride, an oxynitride, or mixtures thereof.

18. The article of claim 16 , wherein the first film of the second dielectric layer comprises a metal oxide.

19. The article of claim 16 , further comprising a protective coating over the fourth dielectric layer.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2020
From: POLCYN, ADAM D.; WAGNER, ANDREW V.; BUHAY, HARRY; BHANDARI, ABHINAV; FINLEY, JAMES J.; OHODNICKI, PAUL R., JR.; O'SHAUGHNESSY, DENNIS J.; BENIGNI, JEFFREY A.; MEDWICK, PAUL A.; THIEL, JAMES P.
To: VITRO, S.A.B. DE C.V.
Reel/Frame 051410/0153 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2020
From: VITRO, S.A.B. DE C.V.
To: VITRO FLAT GLASS LLC
Reel/Frame 051410/0696 →