Patent · US Active

White, opaque, β-spodumene/rutile glass-ceramics; articles comprising the same; and methods for making the same

US8664131B2 · kind B2 · utility

16Cited by

22References

19Claims

0Family size

Assignee

CORNING INCORPORATED · US

Inventors

George Halsey Beall · Big Flats, US
Marie Jacqueline Monique Comte · Fontenay-aux-Roses, FR
George Owen Dale · Horseheads, US
Linda Ruth Pinckney · Corning, US
Charlene Marie Smith · Corning, US
Ronald Leroy Stewart · Elmira, US
Steven Alvin Tietje · Lindley, US

Key dates

Filing date	Jul 2, 2013
Grant date	Mar 4, 2014
Priority date	—
Expiry date	Jul 2, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/315
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit β-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 62-75 SiO2; 10.5-17 Al2O3; 5-13 Li3O; 0-4 ZnO; 0-8 MgO; 2-5 TiO2; 0-4 B2O3; 0-5 Na2O; 0-4 K2O; 0-2 ZrO2; 0-7 P2O5; 0-0.3 Fe2O3; 0-2 MnOx; and 0.05-0.2 SnO2. Additionally, these glasses and glass-ceramics exhibit the following criteria:

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.