Glass sheet
AssigneeSaint-Gobain Glass France
InventorsJulien Sellier, Rene Gy, Stephanie Pelletier
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Abstract
A glass sheet, the composition of which is of the lithium aluminosilicate type and includes at most 1% by weight of sodium oxide, the thickness of which is at most 2 mm, having a surface region under compression obtained by ion exchange and a central region under tension, such that the flexural stress at break in a ring-on-tripod test is at least 50 MPa, after Vickers indentation under a load of 120 N.
Claims19
A lithium aluminosilicate glass sheet, a composition of which comprises at most 1% by weight of sodium oxide, a thickness of which is at most 2 mm, having a surface region under compression obtained by ion exchange and a central region under tension, such that a flexural stress at break in a ring-on-tripod test is at least 50 MPa, after Vickers indentation under a load of 120 N.
Dependencies are inferred from the claim text.