Patent · US Active

Transparent, colorless low-titania β-quartz glass-ceramic material

US8318619B2 · kind B2 · utility

5Cited by

5References

8Claims

0Family size

Assignee

Eurokera · FR

Inventors

Marie Jacqueline Monique Comte · Fontenay-aux-Roses, FR
Lothar Wondraczek · Erlangen, DE

Key dates

Filing date	Nov 29, 2007
Grant date	Nov 27, 2012
Priority date	—
Expiry date	Jul 9, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C3/085
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention mainly relates to a transparent, essentially colorless/?β-quartz glass-ceramic material, the composition of which is free of As2O3 and of Sb2O3 and contains a specific combination of three nucleating agents: TiO2, ZrO2 and SnO2; TiO2 being present in low quantity.

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