Patent ID: 9145329
Filing Date: 2015-09-29
Classification: A61J,C03C,Y10T

Abstract:
1. A glass composition comprising: from 67 mol. % to about 75 mol. % SiO from about 6 mol. % to about 10 mol. % Al from about 5 mol. % to about 12 mol. % alkali oxide, wherein the alkali oxide comprises Na from about 9 mol. % to about 15 mol. % of alkaline earth oxide, the alkaline earth oxide comprising greater than 0 mol. % and less than or equal to 3 mol. % MgO and from about 2 mol. % to about 7 mol% CaO, wherein a ratio of a concentration of MgO to the sum of the concentration of divalent cations (MgO:ΣRO) is less than 0.3 and the glass composition is susceptible to strengthening by ion-exchange.