Patent · US Expired

Removal of halos from glass-ceramic articles decorated with a ceramic color

US5500255A · kind A · utility

2Cited by

5References

9Claims

0Family size

Assignee

Schott Glaswerke · DE

Inventors

Roland Leroux · Stadecken-Elsheim, DE
Erich Rodek · Mainz, DE
Kurt Schaupert · Hofheim, DE
Jurgen Thurk · Schornsheim, DE
Waldemar Weinberg · Kiebitzreihe, DE

Key dates

Filing date	Jan 11, 1993
Grant date	Mar 19, 1996
Priority date	—
Expiry date	Jan 11, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24942
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

For removing halo formation, which often occurs on glass-ceramic articles decorated with a ceramic color, a layer of SiO.sub.2 is applied to the glass-ceramic article after the glass-ceramic color has been burnt-in. The layer is preferably 40-200 nm thick. The layer can contain up to 66.5% by weight of oxides, which change the refractive index so that the layer is invisible, the layer being, for example, 85-93% by weight of SiO.sub.2 and 7-15% by weight of TiO.sub.2.

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