Blank comprised of a zirconium oxide ceramic with an oxide additive and the use thereof

US6713421B1 · kind B1 · utility

Assignee

• 3M ESPE AG · DE

Inventors

• Holger Hauptmann · Sindelsdorf, DE
• Robert Schnagl · Landsberg, DE
• Sybille Frank · Hanerau-Hademarschen, DE

Key dates

• Filing date: Apr 11, 2002
• Grant date: Mar 30, 2004
• Expiry date: May 16, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/824
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to blanks comprising zirconium oxide-based ceramic with an addition of 0.1 to 0.50 wt.-% of at least one of the oxides of the elements aluminium, gallium, germanium, indium and their use.