Patent ID: 8895462

Claim:
An alkali-free glass comprising oxides, the oxides consisting of, based on the total weight of oxides present therein, 46 to 57 wt % of SiO 2 ; 4 to 6 wt % of B 2 O 3 ; 25 to 29 wt % of Al 2 O 3 ; 3 to 14 wt % of MgO; 11 to 16 wt % of CaO; and 1 to 5 wt % of SrO, wherein the alkali-free glass has a temperature less than 1510° C. at a viscosity of 10 2 dPas, and a temperature less than 1210° C. at a viscosity of 10 4 dPas.