Granted Patent B2

US 12,391,600 · App. 18/087,234 · Granted Aug 19, 2025

Inventors: Kaveh Adib (Corning, NY); Dana Craig Bookbinder (Corning, NY); Theresa Chang (Painted Post, NY); Paul Stephen Danielson (Dundee, NY); Steven Edward DeMartino (Painted Post, NY); Melinda Ann Drake (Corning, NY); Andrei Gennadyevich Fadeev (Elmira, NY); James Patrick Hamilton (Horseheads, NY); Robert Michael Morena (Lindley, NY); Santona Pal (Painted Post, NY); John Stephen Peanasky (Big Flats, NY); Chandan Kumar Saha (Franklin, MI); Robert Anthony Schaut (Painted Post, NY); Susan Lee Schiefelbein (Ithaca, NY); Christopher Lee Timmons (Big Flats, NY)

Assignee: Corning Incorporated

C03C3/087A61J1/1468B32B17/06B65D1/40B65D23/0814B65D25/14C03B23/047C03C17/005C03C17/30C03C17/32C03C17/3405C03C17/42C03C21/002C08G73/105C08G73/1071C08K5/544C09D179/08C03C2217/78C03C2218/111Y10T428/131

Abstract

Claims (23)

1. A glass container comprising:

a glass body comprising an alkali aluminosilicate glass composition having a Class HGA1 hydrolytic resistance when tested according to the ISO 720:1985 testing standard, the glass body having an interior surface and an exterior surface;

and

a heat-tolerant coating bonded to at least a portion of the exterior surface of the glass body but not bonded onto any portion of the interior surface of the glass body, wherein the heat-tolerant coating has a coefficient of friction of less than about 0.7 and is thermally stable at a temperature of at least 260° C. for 30 minutes, wherein the heat-tolerant coating comprises a polymer, and wherein the heat-tolerant coating has a thickness of less than 100 nm.

2. The glass container of claim 1 , wherein:

the glass body has an interior region extending between the interior surface of the glass body and the exterior surface of the glass body, the interior region having a persistent layer homogeneity such that an extrema in a concentration of each constituent component in the interior region is greater than or equal to about 80% and less than or equal to about 120% of a bulk concentration of the same constituent component at a mid-point of a thickness of the glass body when the glass container is in an as-formed condition; and

the interior surface of the glass body has a persistent surface homogeneity such that for a discrete point on the interior surface of the glass container, an extrema of a concentration of each constituent component of the glass in a surface region at the discrete point is greater than or equal to about 70% and less than or equal to about 130% of the same constituent component in the surface region at any second discrete point on the interior surface of the glass container when the glass container is in an as-formed condition.

3. The glass container of claim 2 , wherein the interior region has a thickness T LR of at least about 100 nm.

4. The glass container of claim 2 , wherein the interior region extends from 10 nm below the interior surface of the glass body and has a thickness T LR of at least about 100 nm.

5. The glass container of claim 2 , wherein the persistent surface homogeneity extends into a wall thickness of the glass body to a depth from about 10 nm to about 50 nm from the interior surface of the glass body.

6. The glass container of claim 2 , wherein the surface region extends into a wall thickness of the glass body to a depth of at least 10 nm from the interior surface of the glass body.

7. The glass container of claim 1 , wherein the heat-tolerant coating has a mass loss of less than about 5% of its mass when heated from a temperature of 150° C. to 350° C. at a ramp rate of about 10° C./minute.

8. The glass container of claim 1 , wherein the heat-tolerant coating comprises a coupling agent layer.

9. The glass container of claim 8 , wherein the coupling agent layer comprises at least one silane.

10. The glass container of claim 8 , wherein the heat-tolerant coating further comprises a low-friction layer contacting the coupling agent layer.

11. The glass container of claim 1 , wherein the heat-tolerant coating is thermally stable at a temperature of at least 320° C. for 30 minutes.

12. The glass container of claim 1 , wherein the polymer is selected from the group consisting of polyimides, polybenzimidazoles, polysulfones, polyetheretherketones, polyetherimides, polyamides, polyphenyls, polybenzothiazoles, polybenzoxazoles, polybisthiazoles, polyaromatic heterocyclic polymers, silsesquioxane-based polymers, and silicone resins.

13. The glass container of claim 1 , wherein a light transmission through a coated portion of the glass container is greater than or equal to about 55% of a light transmission through an uncoated glass article for wavelengths from about 400 nm to about 700 nm.

14. The glass container of claim 1 , wherein the glass body has at least a class S3 acid resistance according to DIN 12116 dated March 2001.

15. The glass container of claim 1 , wherein the glass body has at least a class A2 base resistance according to ISO 695:1991.

16. The glass container of claim 1 , wherein the glass body has at least a type HGB2 hydrolytic resistance according to ISO 719:1985.

17. The glass container of claim 1 , wherein the glass body has a compressive stress greater than or equal to 300 MPa in at least the exterior surface of the glass body and a depth of layer of at least 30 μm.

18. The glass container of claim 1 , wherein the glass body is substantially free from boron and compounds containing boron.

Assignments (1)

Continuity (4)

References Cited (400)