Transparent medium having angle-selective transmission or reflection properties and/or absorption properties

US6767633B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Elke Steudel · Darmstadt, DE
• Hans-Dieter Bruckner · Darmstadt, DE
• Gerhard Pfaff · Mainburg, DE
• Peter Reynders · Griesheim, DE
• Christoph Schmidt · Kriftel, DE
• Carsten Brabänder · Weener, DE
• Wolfgang Hechler · Herbstein, DE

Key dates

• Filing date: Oct 10, 2002
• Grant date: Jul 27, 2004
• Expiry date: Oct 10, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2991
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a transparent medium comprising multilayer pigments having angle-selective reflection or transmission properties and/or absorption properties, and to their use, in particular in transparent thermal insulation systems (TTIs).