Method for producing photo-structurable glass bodies by a redrawing method

US10501363B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Carsten Renz · Eschershausen, DE
• Marten Walther · Engelstadt, DE
• Lothar Niessner · Alfeld (Leine), DE
• Martin Feichtinger · Delligsen, DE
• Bianca Schreder · Pocking, DE
• Junming Xue · Suzhou, CN
• Sean Qian · Shanghai, CN

Key dates

• Filing date: May 18, 2016
• Grant date: Dec 10, 2019
• Expiry date: Apr 19, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03B19/02
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for production of a photo-structurable glass element is provided. The method includes the steps of: fixing a blank of photo-structurable glass at a first end; heating of a deformation zone of the blank; and drawing the blank. The glass includes Si4+, a crystal-agonist, a crystal-antagonist, and a pair of nucleating agents. The crystal-agonist is selected from the group consisting of Na+, K+, Li+, and any combinations thereof. The crystal-antagonist is selected from the group consisting of Al3+, B3+, Zn2+, Sr2+, Sb3+, and any combinations thereof. The pair of nucleating agents include cerium and an agent selected from the group consisting of silver, gold, copper, and any combinations thereof. The crystal-agonist has a molar proportion cat.-% in relation to a molar proportion of Si4+ that is at least 0.3 and at most 0.85.