US 2026/0285737 A1 · GLASS AND METHODS OF MAKING THE SAME

Abstract

A glass, in terms of mol % of representative oxides, comprises silica in an amount greater than 20 mol % and less than 60 mol %, alumina in an amount greater than 15 mol % and less than 40 mol %, magnesia in an amount greater than 0.02 mol % and less than 20 mol %, lithia in an amount greater than 7 mol % and less than 25 mol %, soda in an amount greater than 0.02 mol % and less than 15 mol %, and yttria in an amount greater than 4 mol % and less than 20 mol %, where the glass has useful properties, such as scratch resistance and temperability. The glass may be formed and quenched such that the glass has fewer than 0.02 wt % crystals therein.

Claims20

Dependent claims

A glass, in terms of mol % of representative oxides, comprising:

silica (SiO2) in an amount greater than 30 mol % and less than 50 mol %;
alumina (Al2O3) in an amount greater than 15 mol % and less than 40 mol %;
magnesia (MgO) in an amount greater than 0.02 mol % and less than 20 mol %;
lithia (Li2O) in an amount greater than 7 mol % and less than 25 mol %;
soda (Na2O) in an amount greater than 0.02 mol % and less than 4 mol %;
and
yttria (Y2O3) in an amount greater than 4 mol % and less than 20 mol %;
wherein the glass is amorphous such that the glass has fewer than 0.02 wt % crystals therein.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

19/573,295Filed 20 Mar 2026

Priority

20 Mar 2025

Published

24 Sep 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

C03C 3/062
Containing silica: with less than 40% silica by weight
C03C 3/095
With 40% to 90% silica, by weight: containing rare earths
C03C 3/097
With 40% to 90% silica, by weight: containing phosphorus, niobium or tantalum
C03C
Chemical composition of glasses, glazes or vitreous enamels

Glass and methods of making the same

Life of this patent

Glass and methods of making the same

Life of this patent

Abstract

Claims20