Prepolymer-based polyurethane formulations for the production of holographic films

US8685595B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Marc-Stephan Weiser · Leverkusen, DE
• Thomas Rölle · Leverkusen, DE
• Friedrich-Karl Bruder · Krefeld, DE
• Thomas Fäcke · Leverkusen, DE
• Dennis Hönel · Wichterich, DE

Key dates

• Filing date: Feb 12, 2010
• Grant date: Apr 1, 2014
• Expiry date: Jul 25, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G11B7/246
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a novel holographic photopolymer based on prepolymer-based polyurethane compositions, the preparation of said photopolymer and its use for a very wide range of optical applications.