Process for the production of decorated tableware with increased resistance to scratches caused by cutlery

US6103312A · kind A · utility

Assignee

• Cerdec Aktiengesellschaft Keramische Farben · DE

Inventors

• Adalbert Huber · Bensheim, DE
• Dietrich Speer · Hanau, DE
• Gabriele Wachowitz · Dietzenbach, DE
• Holger Jarnicki · Eppenrod, DE

Key dates

• Filing date: Oct 5, 1998
• Grant date: Aug 15, 2000
• Expiry date: Oct 5, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2111/2038
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The resistance of tableware decorations to cutlery scratches can be improved by using a decoration coloring substance whose coloring component is a molecular sieve charged with a metal selected from V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ag, Au, Ru, Rh, Pd, Os, Ir, Pt and/or an ion or a compound of the metal. The coloring component is preferably an aluminosilicate or silicalite charged with Au, Pt, Pd or Cu.