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US 2024/0174549 A1Published application
Strengthened glasses with soda lime silicate glass cullet acceptability
AssigneeCorning Incorporated
InventorPeter Joseph Lezzi
Life of this patent
Estimating the term…
Abstract
An alkali aluminosilicate glass article has a glass composition of 68.5 mol % to 76.5 mol % SiO2, 5.5 mol % to 11.0 mol % Al2O3, 9.0 mol % to 14.5 mol % Na2O, 4.0 mol % to 5.7 mol % MgO, 1.0 mol % to 4.8 mol % CaO, and 0.05 mol % to 3.9 mol % K2O. The glass article may be ion exchanged to have one or more compressed surface layers. The glass article may be made from raw materials containing soda-lime glass cullet.
Claims20
An alkali aluminosilicate glass article comprising:
- from greater than or equal to 68.5 mol % to less than or equal to 76.5 mol % SiO2;
- from greater than or equal to 5.5 mol % to less than or equal to 11.0 mol % Al2O3;
- from greater than or equal to 9.0 mol % to less than or equal to 14.5 mol % Na2O;
- from greater than or equal to 4.0 mol % to less than or equal to 5.7 mol % MgO;
- from greater than or equal to 1.0 mol % to less than or equal to 4.8 mol % CaO;
- from greater than or equal to 0.05 mol % to less than or equal to 3.9 mol % K2O;
- and
- wherein CaO mol %−K2O mol % is greater than or equal to −1.5 mol % and less than or equal to 4.8 mol %.
5 more elements
An ion-exchange strengthened alkali aluminosilicate glass article comprising:
- from greater than or equal to 68.5 mol % to less than or equal to 76.5 mol % SiO2;
- from greater than or equal to 5.5 mol % to less than or equal to 11.0 mol % Al2O3;
- from greater than or equal to 9.0 mol % to less than or equal to 14.5 mol % Na2O;
- from greater than or equal to 4.0 mol % to less than or equal to 5.7 mol % MgO;
- from greater than or equal to 1.0 mol % to less than or equal to 4.8 mol % CaO;
- from greater than or equal to 0.05 mol % to less than or equal to 3.9 mol % K2O;
- wherein CaO mol %−K2O mol % is greater than or equal to −1.5 mol % and less than or equal to 4.8 mol %;
- and
- wherein the ion-exchange strengthened glass article has one or more compressed surface layers.
6 more elements
Dependencies are inferred from the claim text.