Strengthened glass articles and methods of making

A technology for strengthening glass and glass products, which is applied in glass manufacturing equipment, manufacturing tools, glass tempering, etc., and can solve problems such as being easily broken into a large number of small pieces

Inactive Publication Date: 2011-08-10
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these glasses can be prone to brittleness, i.e., the glass tends to sh

Method used

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  • Strengthened glass articles and methods of making
  • Strengthened glass articles and methods of making
  • Strengthened glass articles and methods of making

Examples

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Embodiment Construction

[0014] In the following description, like reference numerals designate like or corresponding parts throughout the several views shown in the drawings. It should also be understood that unless otherwise indicated, the terms "top", "bottom", "outwardly", "inwardly", etc. are terms of convenience and should not be construed as terms of limitation. In addition, when a group is described as comprising at least one of a group of elements and combinations thereof, it is to be understood that the group may include, consist essentially of, or consist of any number of those recited elements alone or in combination with each other. Similarly, when a group is described as consisting of at least one of a group of elements and combinations thereof, it is to be understood that the group may include any number of those recited elements alone or in combination with each other. Unless otherwise indicated, recited ranges of values ​​include the upper and lower limits of that range, and any subra...

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Abstract

A strengthened glass article having a central tension that is below a threshold value above which the glass exhibits frangible behavior. The central tension varies non-linearly with the thickness of the glass. The glass may be used as a cover plate or window for portable or mobile electronic devices such as cellular phones and the like. The article is strengthened by alkal ion-exchange in a molten salt bath.

Description

[0001] Related Application Cross Reference [0002] This application claims the benefit of US Provisional Patent Application No. 61 / 087324, filed August 8, 2008. technical background [0003] Chemically strengthened glasses are known for use in hand-held devices, such as mobile phones, media players, and other devices, as well as other applications requiring transparency, high strength, and abrasion resistance. However, these glasses can be prone to brittleness, ie, the glass tends to shatter into numerous small pieces when impacted with sufficient penetrating force. Summary of the invention [0004] Provided and described herein are strengthened glasses having a central tension below a threshold above which the glass exhibits brittleness. The central tension varies non-linearly with the thickness of the glass. The glass can be used as a cover or window for portable or mobile electronic communication and entertainment devices (such as mobile phones, music players) and info...

Claims

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Application Information

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IPC IPC(8): C03C21/00C03C3/062C03C3/083C03C3/064C03C3/093
CPCC03C3/085C03C3/064C03C21/002C03C3/078C03C3/087C03C3/093C03C3/091C03B27/00C03B27/012C03B27/03Y10T428/315Y10T428/31C03C3/083C03C3/095C03C4/18C03C2204/00
Inventor K·L·贝尔富特J·J·普赖斯J·M·奎恩塔尔R·L·斯图尔特
Owner CORNING INC
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