IP Library › Granted Patent US 11,472,730
Granted Patent B2
US 11,472,730 · App. 15/578,147 · Granted Oct 18, 2022

Laminated glass article with tinted layer

Inventors: Heather Debra Boek (Corning, NY); Matthew John Dejneka (Corning, NY); Lisa Ann Tietz Moore (Corning, NY)
Assignee: Corning Incorporated
C03C3/097B32B17/06C03B17/02C03B17/064C03C3/085C03C3/087C03C3/091C03C3/093C03C3/095C03C4/02C03C4/12C03C4/18C03C17/02B32B2307/308B32B2307/4026C03C2204/00
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Quick Facts
Patent No.
US 11,472,730
App. No.
15/578,147
Granted
Oct 18, 2022
Kind
B2
Abstract

A laminated glass article includes a glass core layer and a glass cladding layer adjacent to the glass core layer. At least one of the glass core layer or the glass cladding layer is a tinted layer. The tinted layer can include a tinting agent that imparts a color to the tinted layer.

Claims (22)

1. A laminated glass article comprising:

a glass core layer comprising at least one alkali metal and a tinting agent, wherein the glass core layer is not an opal glass, wherein the tinting agent is configured to impart a visible color to the glass core layer, wherein the glass core layer comprises:

greater than or equal to 70 mol % SiO 2 ;

greater than or equal to 1 mol % B 2 O 3 ;

less than or equal to 6 mol % K 2 O;

greater than or equal to 5 mol % Na 2 O; and

a liquidus viscosity of greater than or equal to 100 kP;

a first glass cladding layer fused to a first surface of the core layer and substantially free of alkali metals; and

a second glass cladding layer fused to a second surface of the core layer and substantially free of alkali metals;

wherein

the tinting agent comprises a transition metal selected from the group consisting of Cr, Ni, Co, Au, Ag, and Cu, and combinations thereof and a redox agent comprising Sn atoms.

2. The laminated glass article of claim 1 , wherein the tinting agent further comprises at least one of a phosphorescent material or a fluorescent material.

3. The laminated glass article of claim 1 , wherein the glass core layer comprises an ion exchangeable glass composition.

4. The laminated glass article of claim 1 , wherein each of the first glass cladding layer and the second glass cladding layer has a lower coefficient of thermal expansion than the glass core layer.

5. The laminated glass article of claim 1 , wherein at least one of the glass core layer, the first glass cladding layer, or the second glass cladding layer comprises a glass-ceramic material.

6. The laminated glass article of claim 1 , the glass article having an average transmittance of at least about 70% over a wavelength range of about 400 nm to about 750 nm.

7. The laminated glass article of claim 1 , wherein the tinting agent comprises a combination of Ni and Co.

8. The laminated glass article of claim 1 , wherein the transition metal is Cu.

9. The laminated glass article of claim 1 , wherein the tinting agent further comprises at least one of:

b) a rare earth element selected from the group consisting of Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Nd, Tm, Yb, Lu, U, and combinations thereof and a redox agent comprising Sn atoms; or

c) atoms selected from Se and Cd, S and Cd or Se, S, and Cd and colloidal compounds thereof; or

d) metallic colloids of a metal selected from the group consisting of Ag, Au, Cu, Pt, and combinations thereof.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 29, 2017
From: BOEK, HEATHER DEBRA; DEJNEKA, MATTHEW JOHN; TIETZ MOORE, LISA ANNE
To: CORNING INCORPORATED
Reel/Frame 044253/0137 →
Continuity (2)
Provisional Application 62169840 · Jun 2, 2015
Related Publication 20180162768A1 · Jun 14, 2018