BOROALUMINOSILICATE GLASS COMPOSITION HAVING HIGH FUSION FLOW RATE AND ADVANTAGED PAIR SHAPING TEMPERATURE

Abstract: disclosed herein are embodiments of a glass composition including about 55 mol % to about 67 mol % sio, about 10 mol % to about 13 mol % bo, about 11 mol % to about 15 mol % alo, and about 12 mol % to about 16 mol % alkali oxide. in one or more embodiments, the glass composition comprises a temperature at which a viscosity of the borosilicate glass composition is 10p from about 630� c. to about 650� c. also disclosed is a method of forming a glass ply. in the method, a trough in an isopipe is overflowed with at least two streams of the glass composition, and the at least two streams of the glass composition are fused at a root of the isopipe to form the glass ply. the glass ply can be pair-shaped to form laminates for use as automotive glazing.

Inventor(s): Timothy Michael Gross, Aaron Joshua Hade, Chunhong Chelsie He, Jian Luo

CPC Classification: C03C3/091 (CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS)

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