Prepolymer-based polyurethane formulations for producing holographic media

US8852829B2 · 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
• Sebastian Dörr · Mülheim an der Ruhr, DE
• Nicolas Stöckel

Key dates

• Filing date: Sep 24, 2009
• Grant date: Oct 7, 2014
• Expiry date: Jan 12, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G11B7/26
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a polyurethane composition comprising