Method for producing thermoshaped substrates coated with a sol-gel lacquer

US6482525B1 · kind B1 · utility

Assignee

• Institut fuer Neue Materialien gemeinnuetzige GmbH · DE

Inventors

• Reiner Kasemann · Munich, DE
• Nora Kunze · Völklingen, DE
• Helmut Schmidt · Riegelsberg, DE
• Stefan Sepeur · Wadgassen, DE

Key dates

• Filing date: Feb 23, 2001
• Grant date: Nov 19, 2002
• Expiry date: Feb 23, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31663
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

What is described is a method for producing a thermally shaped substrate coated with a sol-gel coating material, in which the sol-gel coating material comprises one or more hydrolyzable silanes, which may have been hydrolyzed to form a precondensate, and, if desired, a crosslinking agent, at least some of the hydrolyzable silanes containing on a non-hydrolyzable substituent a functional group by way of which crosslinking is possible, and in whichA) the sol-gel coating material is applied to a thermally shapable substrate,B) the applied sol-gel coating material is partially precrosslinked and/or dried,C) the substrate coated with the sol-gel coating material is subsequently shaped thermally, andD) during and/or after the thermal shaping the sol-gel coating material is cured completely by means of thermal or photochemical crosslinking.