Method of strengthening glass by plasma induced ion exchanges in connection with tin baths, and articles made according to the same

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United States of America Patent

PATENT NO 9988304
SERIAL NO

13137696

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Abstract

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Certain example embodiments relate to an improved method of strengthening glass substrates (e.g., soda lime silica glass substrates). In certain examples, a glass substrate may be chemically strengthened by creating an electric field within the glass. In certain cases, the chemical tempering may be performed by surrounding the substrate by a plasma including certain ions, such as Li+, K+, Mg2+, and/or the like. In some cases, these ions may be forced into the glass substrate due to the half-cycles of the electric field generated by the electrodes that formed the plasma. This may advantageously chemically strengthen a glass substrate on a substantially reduced time scale. In other example embodiments, an electric field may be set in a float bath such that sodium ions are driven from the molten glass ribbon into the tin bath, which may advantageously result in a stronger glass substrate with reduced sodium content.

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Patent Owner(s)

  • GUARDIAN GLASS, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cerny, Glenn A Canton, US 12 160
Hu, Xuequn Northville, US 20 86
Veerasamy, Vijayen S Ann Arbor, US 216 5360

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