Glasses having improved hydrolytic and alkali resistance

US10822265B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Ulrich Fotheringham · Wiesbaden, DE
• Michael Schwall · Mainz, DE
• Simone Monika Ritter · Mainz, DE
• Peter Naß · Mainz, DE
• Christof Kass · Tirschenreuth, DE
• Christoph Berndhäuser · Nieder-Olm, DE
• Christoph Groß · Mainz, DE

Key dates

• Filing date: Feb 8, 2018
• Grant date: Nov 3, 2020
• Expiry date: May 12, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C2203/50
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A glass having a good hydrolytic resistance and alkali resistance is defined by a targeted combination of stoichiometric glasses, including glasses also existing as crystals in the same stoichiometry and whose properties can be assumed as being very similar due to the identical topology of the structural units for glass and crystal, respectively. A process of producing the glasses is also provided.