CPC A61J 1/1468 (2015.05) [A61J 1/18 (2013.01); B32B 17/06 (2013.01); B65D 1/0215 (2013.01); B65D 1/40 (2013.01); C03C 21/002 (2013.01); C03C 3/085 (2013.01); C03C 3/091 (2013.01); Y10T 428/131 (2015.01); Y10T 428/1317 (2015.01); Y10T 428/315 (2015.01)] | 14 Claims |
1. A method of making a glass article having a first surface and a second surface separated by a thickness, the method comprising:
forming a first region in at least one surface of the glass article by ion-exchanging an aluminosilicate glass of the glass article, wherein the first region extends from at least one of the first surface and the second surface to a depth of layer in the glass, wherein the first region is under a compressive stress, wherein the thickness of the glass article is from 0.9 mm to 1.2 mm; and
forming a second region under a central tension of greater than 13 MPa to less than 13.8 MPa, the second region extending from the depth of layer, wherein the central tension is sufficient to allow self-propagation of a flaw front from the first surface to the second surface and laterally across at least the first surface, wherein the glass article is a container adapted to hold a pharmaceutical product, a vaccine, a biologic, a foodstuff, or a solution.
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