Glass containers with improved strength and improved damage tolerance
First Claim
1. A glass container comprising:
- a body enclosing an interior volume and having an inner surface, an outer surface and a wall thickness extending between the outer surface and the inner surface;
a compressively stressed layer extending from the outer surface of the body into the wall thickness; and
a lubricous coating positioned around at least a portion of the outer surface of the body, wherein the lubricous coating is an organic coating that is thermally stable at a temperature of at least about 250°
C. and the outer surface of the body with the lubricous coating has a coefficient of friction less than or equal to 0.7, whereinthe body comprises laminated glass, andthe lubricous coating comprises a polymer chemical composition.
3 Assignments
0 Petitions
Accused Products
Abstract
The glass containers described herein have at least two performance attributes selected from resistance to delamination, improved strength, and increased damage resistance. In one embodiment, a glass container may include a body having an inner surface, an outer surface and a wall thickness extending between the outer surface and the inner surface. A compressively stressed layer may extend from the outer surface of the body into the wall thickness. The compressively stressed layer may have a surface compressive stress greater than or equal to 150 MPa. A lubricous coating may be positioned around at least a portion of the outer surface of the body. The outer surface of the body with the lubricous coating may have a coefficient of friction less than or equal to 0.7.
299 Citations
30 Claims
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1. A glass container comprising:
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a body enclosing an interior volume and having an inner surface, an outer surface and a wall thickness extending between the outer surface and the inner surface; a compressively stressed layer extending from the outer surface of the body into the wall thickness; and a lubricous coating positioned around at least a portion of the outer surface of the body, wherein the lubricous coating is an organic coating that is thermally stable at a temperature of at least about 250°
C. and the outer surface of the body with the lubricous coating has a coefficient of friction less than or equal to 0.7, whereinthe body comprises laminated glass, and the lubricous coating comprises a polymer chemical composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A glass container comprising:
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a body enclosing an interior volume and having an inner surface, an outer surface and a wall thickness extending between the outer surface and the inner surface, wherein the body is formed from a Type 1, Class B glass according to ASTM Standard E438-92 (2011); a compressively stressed layer extending from the outer surface of the body into the wall thickness, the compressively stressed layer having a surface compressive stress greater than or equal to 150 MPa; and a lubricous coating positioned around at least a portion of the outer surface of the body, wherein the lubricous coating is a tenacious inorganic coating selected from the group consisting of metal nitride coatings, metal sulfide coatings, SiO2, diamond-like carbide coatings, graphene coatings and carbide coatings and the outer surface of the body with the lubricous coating has a coefficient of friction less than or equal to 0.7. - View Dependent Claims (26, 27, 28)
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29. A glass container comprising:
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a body enclosing an interior volume and having an inner surface, an outer surface and a wall thickness extending between the outer surface and the inner surface; a compressively stressed layer extending from the outer surface of the body into the wall thickness, the compressively stressed layer extending to a depth of layer greater than or equal to 3 μ
m; anda lubricous coating positioned around at least a portion of the outer surface of the body, wherein the lubricous coating is an organic coating that is thermally stable at a temperature of at least about 250°
C. and the outer surface of the body with the lubricous coating has a coefficient of friction less than or equal to 0.7, whereinthe body comprises laminated glass, and the lubricous coating comprises a polymer chemical composition. - View Dependent Claims (30)
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Specification