Patent · US Expired

Ceramic decoration coloring substances with increased color saturation comprising zirconium pigments, process for their production and their use

US6174359A · kind A · utility

1Cited by

5References

18Claims

0Family size

Assignee

Cerdec Aktiengesellschaft Keramische Farben · DE

Inventors

Dietrich Speer · Hanau, DE
Holger Jarnicki · Eppenrod, DE
Adalbert Huber · Bensheim, DE

Key dates

Filing date	Sep 28, 1998
Grant date	Jan 16, 2001
Priority date	—
Expiry date	Sep 28, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C8/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Ceramic decoration coloring substances substantially containing a zirconium pigment of the host lattice or inclusion type and a glass flux at a pigment volume concentration (PVC) of at least 30% have an increased color saturation C* if the glass flux comprises at least 71 wt. % PbO. Preferred decoration coloring substances have a PVC in the range from 40 to 70% and a PbO content of 75 to 85 wt. %. The decoration coloring substances are especially suitable for production of decorations, burned at 1000 to 1250.degree.C, with increased color saturation C*.

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