Lithium disilicate glass-ceramic, method for production thereof and use thereof

US10219879B2 · kind B2 · utility

Assignees

• DeguDent GmbH · DE
• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US
• Vita Zahnfabrik H. Rauter GmbH & Co. KG · DE

Inventors

• Bernhard Durschang · Rottendorf, DE
• Jörn Probst · Bad Wurzach, DE
• Norbert Thiel · Annaberg-Buchholz, DE
• Joachim Bibus · Bad Säckingen, DE
• Markus Vollmann · Gelnhausen, DE
• Udo Schusser · Alzenau, DE

Key dates

• Filing date: May 9, 2014
• Grant date: Mar 5, 2019
• Expiry date: Apr 17, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C10/0027
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallization and, after complete crystallization, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.