Patent ID: 7892999
Filing Date: 2011-02-22
Classification: C03C,H01J

Abstract:
1. A float glass for a display substrate, characterized in that its composition consists essentially of, as represented by mass % based on oxide, from 52 to 62% of SiO from 5 to 15% of Al from more than 0% to 9% of MgO, from 3 to 12% of CaO, from 9 to 18% of SrO, from 2.6 to 13% of BaO, from 25.2 to 30% of MgO+CaO+SrO+BaO, from 6 to 14% of Na from 0 to 6% of ZrO from 0 to 1% of SO the temperature of glass melt corresponding to the viscosity of 10 the temperature of glass melt corresponding to the viscosity of 10 the glass transition temperature is at least 610° C., and the specific gravity is at most 2.9.