Thermally treatable layer assembly that filters sun and heat and method for producing the same

US7785721B2 · kind B2 · utility

Assignee

• VON ARDENNE Anlagentechnik GmbH · DE

Inventors

• Matthias List · Dresden, DE
• Falk Milde · Dresden, DE
• Christoph Koeckert · Radebeul, DE
• Joerg Fiukowski · Torgau, DE

Key dates

• Filing date: Nov 25, 2004
• Grant date: Aug 31, 2010
• Expiry date: Nov 1, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C2218/151
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A layer system that filters sun and heat can be applied to glass by a vacuum coating process. The system comprises at least one series of metal layers in addition to a respective series of lower dielectric layers and a respective series of upper dielectric layers. At least one series of metal layers and one series of upper and lower dielectric layers are configured as a sandwich system, wherein one metal layer is encapsulated by an upper and a lower intermediate layer consisting of hypostoichiometrically nitrided or oxidized metal of the metal layer and sandwich systems of the series of layers contain individual sandwich layers of a stoichiometric and hypostoichiometric oxide or nitride of a metal or semiconductor. An oxygen or nitrogen deficit of the sandwich layers increases towards a neighboring sandwich system and the oxide and nitride layers are produced in a vacuum coating process.