Delamination resistant glass containers with heat-tolerant coatings

Patent metadata

Field	Value
Publication number	US-9428302-B2
Application number	US-201314057697-A
Country	US
Kind code	B2
Filing date	Oct 18, 2013
Priority date	Jun 28, 2012
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

Delamination resistant glass containers with heat-tolerant coatings are disclosed. In one embodiment, a glass container may include a glass body having an interior surface, an exterior surface and a wall thickness extending from the exterior surface to the interior surface. At least the interior surface of the glass body is delamination resistant. The glass container may further include a heat-tolerant coating positioned on at least a portion of the exterior surface of the glass body. The heat-tolerant coating may be thermally stable at temperatures greater than or equal to 260° C. for 30 minutes.

First claim

What is claimed is:

1. A glass container comprising:
a glass body having an interior surface and an exterior surface, wherein at least the interior surface of the glass body has a delamination factor of less than or equal to 10; and
a heat-tolerant coating bonded to at least a portion of the exterior surface of the glass body, wherein the heat-tolerant coating is thermally stable at a temperature of at least 260° C. for 30 minutes and 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.

2. The glass container of claim 1 , wherein the exterior surface of the glass body with the heat-tolerant coating has a coefficient of friction of less than about 0.7, and
the coefficient of friction is a maximum coefficient of friction measured relative to a second glass container in a vial-on-vial testing jig under a normal load of 30 N, the second glass container having a body formed from a same glass composition and comprising the heat-tolerant coating on an at least a portion of the outer surface of a body of the second glass container and subjected to the same environmental conditions prior to measurement.

3. 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.

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

5. The glass container of claim 3 , 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.

6. The glass container of claim 1 , wherein the interior surface of the glass body has a persistent surface homogeneity.

7. The glass container of claim 6 , 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.

8. The glass container of claim 1 , wherein the glass body has a surface region that extends from the interior surface of the glass body into a wall thickness of the glass body, the surface region having a persistent surface homogeneity.

9. The glass container of claim 8 , 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.

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

11. The glass container of claim 10 , wherein the coupling agent layer comprises at least one silane chemical composition.

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

13. The glass container of claim 1 , wherein the heat-tolerant coating comprises a low-friction layer comprising a polymer chemical composition.

14. 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.

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

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

17. The glass container of claim 1 , wherein the glass container has a Type 1 hydrolytic resistance according to USP <660>.

18. The glass container of claim 1 , wherein the glass container is a pharmaceutical package.

19. The glass container of claim 1 , wherein the heat tolerant coating is thermally stable at a temperature of at least 280° C. for 30 minutes.

20. A glass container comprising:
a glass body having an interior surface and an exterior surface, wherein at least the interior surface of the glass body has a delamination factor of less than or equal to 10; and
a heat-tolerant coating bonded to at least a portion of the exterior surface of the glass body, wherein the exterior surface of the glass body with the heat-tolerant coating has a coefficient of friction of less than about 0.7,
wherein the coefficient of friction is a maximum coefficient of friction measured relative to a second glass container in a vial-on-vial testing jig under a normal load of 30 N, the second glass container having a body formed from a same glass composition and comprising the heat-tolerant coating on an at least a portion of the outer surface of a body of the second glass container and subjected to the same environmental conditions prior to measurement.

21. The glass container of claim 20 , wherein the heat-tolerant coating is thermally stable at a temperature of at least 320° C. for 30 minutes.

22. The glass container of claim 20 , wherein the glass body has an interior region extending from below the interior surface of the glass body and into a wall thickness of the glass body, the interior region having a persistent layer homogeneity.

23. The glass container of claim 22 , 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.

24. The glass container of claim 20 , wherein the interior surface of the glass body has a persistent surface homogeneity.

25. The glass container of claim 24 , 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.

26. The glass container of claim 20 , wherein the glass body comprises an aluminosilicate glass composition.

27. The glass container of claim 20 , wherein the glass body is substantially free from boron and compounds containing boron.

28. The glass container of claim 20 , wherein the glass container has a Type 1 hydrolytic resistance according to USP <660>.

29. A glass container comprising:
a glass body having an interior surface and an exterior surface, wherein at least the interior surface of the glass body has a delamination factor of less than or equal to 10; and
a heat-tolerant coating bonded to at least a portion of the exterior surface of the glass body, wherein:
the heat-tolerant coating is thermally stable at a temperature of at least 260° C. for 30 minutes;
the exterior surface of the glass body with the heat-tolerant coating has a coefficient of friction of less than about 0.7; and
the coefficient of friction is a maximum coefficient of friction measured relative to a second glass container in a vial-on-vial testing jig under a normal load of 30 N, the second glass container having a body formed from a same glass composition and comprising the heat-tolerant coating on an at least a portion of the outer surface of a body of the second glass container and subjected to the same environmental conditions prior to measurement.

Assignees

• Corning Inc

Inventors

• Fadeev Andrei Gennadyevich
• Chang Theresa
• Bookbinder Dana Craig
• Pal Santona
• Saha Chandan Kumar
• Demartino Steven Edward
• Timmons Christopher Lee
• Peanasky John Stephen
• Schaut Robert Anthony
• Danielson Paul Stephen
• Drake Melinda Ann
• Morena Robert Michael
• Adib Kaveh
• Hamilton James Patrick
• Schiefelbein Susan Lee

Classifications

• Y10T428/131

  Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.] · CPC title

• C08G73/1071

  Wholly aromatic polyimides containing oxygen in the form of ether bonds in the main chain · CPC title

• C03C17/3405

  with at least two coatings of organic materials (C03C17/36, C03C17/42 take precedence) · CPC title

• B65D25/34 Primary

  Coverings or external coatings (of containers made by folding or erecting blanks made of paper B65D5/62; covering or external coating for bottles or jars not otherwise provided for B65D23/08; wrappers B65D65/00) · CPC title

• C03C2217/78

  Coatings specially designed to be durable, e.g. scratch-resistant · CPC title