Glass articles with low-friction coatings

Patent metadata

Field	Value
Publication number	US-9918898-B2
Application number	US-201313780754-A
Country	US
Kind code	B2
Filing date	Feb 28, 2013
Priority date	Feb 28, 2012
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

Low-friction coatings and glass articles with low-friction coatings are disclosed. According to one embodiment, a coated glass article may include a glass body comprising a first surface and a low-friction coating positioned on at least a portion of the first surface of the glass body. The low-friction coating may include a polymer chemical composition. The coated glass article may be thermally stable at a temperature of at least about 260° C. for 30 minutes. A light transmission through the coated glass article may be 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. The low-friction coating may have 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.

First claim

What is claimed is:

1. A coated glass article comprising:
a glass body comprising a first surface and a second surface opposite the first surface, wherein the glass body is a glass container and the first surface is an exterior surface of the glass container; and
a low-friction coating positioned on at least a portion of the first surface of the glass body, the low-friction coating comprising:
a polymer layer comprising a polymer;
a coupling agent layer positioned between the polymer layer and the first surface of the glass body, the coupling agent layer comprising a coupling agent; and
an interface layer positioned between the coupling agent layer and the polymer layer, wherein the interface layer comprises one or more chemicals of the polymer layer bound with one or more chemicals of the coupling agent layer, wherein:
the coated glass article is a pharmaceutical package; and
the coated glass article is thermally stable at a temperature of at least about 260° C. for 30 minutes.

2. The coated glass article of claim 1 , wherein the coupling agent comprises at least one of:
a first silane, a hydrolysate thereof, or an oligomer thereof; or
a chemical formed from the oligomerization of at least the first silane and a second silane, wherein the first silane and the second silane are different.

3. The coated glass article of claim 2 , wherein the first silane is an aromatic silane.

4. The coated glass article of claim 1 , wherein the coupling agent comprises a silsesquioxane.

5. The coated glass article of claim 4 , wherein the silsesquioxane comprises an aromatic moiety.

6. The coated glass article of claim 5 , wherein the silsesquioxane further comprises an amine moiety.

7. The coated glass article of claim 1 , wherein the coupling agent comprises at least one of:
a mixture of a first silane and a second silane; or
a chemical formed from the oligomerization of at least the first silane and the second silane, wherein the first silane and the second silane are different.

8. The coated glass article of claim 7 , wherein the first silane is an aromatic silane.

9. The coated glass article of claim 1 , wherein the polymer is a polyimide.

10. The coated glass article of claim 1 , wherein the pharmaceutical package contains a pharmaceutical composition.

11. The coated glass article of claim 1 , wherein the coefficient of friction of the portion of the coated glass article with the low-friction coating is at least 20% less than a coefficient of friction of a surface of an uncoated glass article formed from the same glass composition.

12. The coated glass article of claim 1 , wherein the portion of the coated glass article with the low-friction coating has a coefficient of friction of less than or equal to about 0.7 after exposure to autoclave conditions.

13. The coated glass article of claim 1 , wherein the glass body comprises ion-exchanged glass.

14. The coated glass article of claim 1 , wherein the portion of the coated glass article with the low-friction coating has a coefficient of friction of less than or equal to about 0.7 after the coated glass article is submerged in a water bath at a temperature of about 70° C. for 1 hour.

15. The coated glass article of claim 1 , wherein the portion of the coated glass article with the low-friction coating has a coefficient of friction of less than or equal to about 0.7 after exposure to lyophilization conditions.

16. The coated glass article of claim 1 , wherein the glass body is formed from a borosilicate glass composition.

17. The coated glass article of claim 1 , wherein the glass body is formed from a Type 1B glass composition.

18. The coated glass article of claim 1 , wherein a light transmission through the coated glass article 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.

19. The coated glass article of claim 1 , wherein the low-friction 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.

20. The coated glass article of claim 1 , wherein the coefficient of friction of the portion of the coated glass article with the low-friction coating is at least 20% less than a coefficient of friction of a surface of an uncoated glass article formed from a same glass composition.

21. The coated glass article of claim 1 , wherein the polymer is selected from at least one of the polymer of the group consisting of polyimides, polybenzimidazoles, polysulfones, polyetheretheketones, polyetherimides, polyphenyls, polybenzothiazoles, polybenzoxazoles, polybisthiazoles, polyaromatic heterocyclic polymers, fluoropolymers, silicone resins, and silsesquioxane-based polymers.

22. The coated glass article of claim 1 , wherein the glass body is formed from an alkali aluminosilicate glass composition.

23. A coated glass article comprising:
a glass body comprising a first surface; and
a low-friction coating positioned on at least a portion of the first surface of the glass body, the low-friction coating comprising:
a polymer; and
a coupling agent comprising at least one of:
a first silane, a hydrolysate thereof, or an oligomer thereof, wherein the first silane is an aromatic silane; or
a chemical formed from the oligomerization of at least the first silane and a second silane,

wherein:
the first silane and the second silane are different;
the coated glass article is thermally stable at a temperature of at least about 260° C. for 30 minutes;
the coated glass article is a pharmaceutical package.

24. The coated glass article of claim 23 , wherein the glass body comprises ion-exchanged glass.

25. The coated glass article of claim 23 , wherein:
the glass body is a glass container comprising a second surface opposite the first surface; and
the first surface is an exterior surface of the glass container.

26. The coated glass article of claim 23 , wherein the pharmaceutical package contains a pharmaceutical composition.

27. The coated glass article of claim 23 , wherein the low-friction coating comprises:
a coupling agent layer positioned on the first surface of the glass body, the coupling agent layer comprising the coupling agent; and
a polymer layer positioned over the coupling agent layer, the polymer layer comprising the polymer.

28. The coated glass article of claim 27 , wherein:
the low-friction coating further comprises an interface layer positioned between the coupling agent layer and the polymer layer; and
the interface layer comprises one or more chemicals of the polymer layer bound with one or more chemicals of the coupling agent layer.

29. The coated glass article of claim 23 , wherein the first silane comprises at least one amine moiety.

30. The coated glass article of claim 23 , wherein the first silane is an aromatic alkoxysilane, an aromatic acyloxysilane, an aromatic halogen silane, or an aromatic aminosilane.

31. The coated glass article of claim 23 , wherein the first silane is selected from the group consisting of aminophenyl alkoxysilanes, aminophenyl acyloxysilanes, aminophenyl halosilanes, 3-(aminophenoxy)propyl alkoxysilanes, 3-(m-aminophenoxy)propyl acyloxysilanes, 3-(m-aminophenoxy)propyl halosilanes, N-phenylaminopropyl alk

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

Classifications

• A61J1/14

  Details; Accessories therefor (A61J7/00 takes precedence; openers B65D, B67B7/00) · CPC title

• B65D23/08

  Coverings or external coatings (wrappers B65D65/00) · CPC title

• B32B17/06 Primary

  comprising glass as the main or only constituent of a layer, next to another layer of a specific {material} · CPC title

• C03C21/002

  to perform ion-exchange between alkali ions (C03C21/005 takes precedence) · CPC title

• Y10T428/24942

  including components having same physical characteristic in differing degree · CPC title