CHEMICALLY STRENGTHENABLE LITHIUM ALUMINOSILICATE GLASSES WITH INHERENT DAMAGE RESISTANCE

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United States of America Patent

APP PUB NO 20240279108A1
SERIAL NO

18641770

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A group of glass compositions in the Li2O—Al2O3—SiO2—B2O3 family that can be chemically strengthened in single or multiple ion exchange baths containing at least one of NaNO3 and KNO3 for a short time (2-4 hours) to develop a deep depth of layer (DOL). In some instances, the DOL is at least 70 μm; in others, at least about 100 μm. The ion exchanged glasses have a high damage resistance (indentation fracture toughness ranging form greater than 10 kgf to greater than 50 kgf) that is better than or at least comparable to that of sodium aluminosilicate glasses.

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Patent OwnerAddress
CORNING INCORPORATEDSP-TI-03-1 CORNING NY 14831

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  • 2024 Application Filing Year
  • C03C Class
  • 397 Applications Filed
  • 17 Patents Issued To-Date
  • 4.29 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Beall, George Halsey Big Flats, US 116 1246
Dejneka, Matthew John Corning, US 165 4136
Fu, Qiang Painted Post, US 385 2528
Gomez, Sinue Corning, US 84 4498
Morena, Robert Michael Lindley, US 109 2432
Smith, Charlene Marie Corning, US 194 2361

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