Methods for forming delamination resistant glass containers
First Claim
1. A method of forming a glass container, the method comprising:
- forming a glass container comprising a sidewall at least partially enclosing an interior volume, at least a portion of an interior surface of the sidewall having an interior surface layer with a persistent layer heterogeneity relative to a midpoint of the sidewall; and
removing the interior surface layer from the interior surface of the sidewall such that a modified interior surface of the sidewall has an interior region extending from about 10 nm below the modified interior surface into a thickness of the sidewall, the interior region having a persistent layer homogeneity relative to the midpoint of the sidewall such that the modified interior surface is resistant to delamination, wherein an extrema in a layer concentration of each constituent component in the interior region is greater than or equal to about 92% and less than or equal to about 108% of a bulk concentration of a same constituent component at a midpoint of the thickness of the sidewall after the interior surface layer has been removed.
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Accused Products
Abstract
In one embodiment, a method of forming a glass container may include forming a glass container comprising a sidewall at least partially enclosing an interior volume. At least a portion of the interior surface of the sidewall may have an interior surface layer with a persistent layer heterogeneity relative to a midpoint of the sidewall. The interior surface layer of the glass container may be removed from the interior surface of the sidewall such that a modified interior surface of the sidewall has an interior region extending from about 10 nm below the modified interior surface into a thickness of the sidewall. The interior region may have a persistent layer homogeneity relative to the midpoint of the sidewall such that the modified interior surface is resistant to delamination.
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Citations
29 Claims
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1. A method of forming a glass container, the method comprising:
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forming a glass container comprising a sidewall at least partially enclosing an interior volume, at least a portion of an interior surface of the sidewall having an interior surface layer with a persistent layer heterogeneity relative to a midpoint of the sidewall; and removing the interior surface layer from the interior surface of the sidewall such that a modified interior surface of the sidewall has an interior region extending from about 10 nm below the modified interior surface into a thickness of the sidewall, the interior region having a persistent layer homogeneity relative to the midpoint of the sidewall such that the modified interior surface is resistant to delamination, wherein an extrema in a layer concentration of each constituent component in the interior region is greater than or equal to about 92% and less than or equal to about 108% of a bulk concentration of a same constituent component at a midpoint of the thickness of the sidewall after the interior surface layer has been removed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for forming a glass container, the method comprising:
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forming a glass container comprising a sidewall at least partially enclosing an interior volume, at least a portion of an interior surface of the sidewall having an interior surface layer with a persistent layer heterogeneity relative to a midpoint of the sidewall; and etching the interior surface of the sidewall with an etchant to remove the interior surface layer such that a modified interior surface of the sidewall has an interior region extending from about 10 nm below the modified interior surface into a thickness of the sidewall, the interior region having a persistent layer homogeneity relative to the midpoint of the sidewall such that the modified interior surface is resistant to delamination, wherein an extrema in a layer concentration of each constituent component in the interior region is greater than or equal to about 92% and less than or equal to about 108% of a bulk concentration of a same constituent component at a midpoint of the thickness of the sidewall after the interior surface layer has been removed. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of forming a glass container, the method comprising:
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forming a glass container comprising a sidewall at least partially enclosing an interior volume such that at least a portion of an interior surface of the sidewall has an interior surface layer wherein an extrema in a layer concentration of each constituent component in the interior surface layer is less than about 80% or greater than about 120% of a bulk concentration of a same constituent component at a midpoint of the sidewall when the glass container is in an as-formed condition; and removing the interior surface layer from the interior surface of the sidewall such that a modified interior surface of the sidewall has an interior region extending into a thickness of the sidewall wherein an extrema in a layer concentration of each constituent component in the interior region is greater than or equal to about 92% and less than or equal to about 108% of a bulk concentration of a same constituent component at a midpoint of the thickness of the sidewall after the interior surface layer has been removed. - View Dependent Claims (26, 27, 28, 29)
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Specification