Method for producing holographic media

US8771904B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

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

Key dates

• Filing date: Nov 2, 2010
• Grant date: Jul 8, 2014
• Expiry date: May 1, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G03H2260/54
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a method for producing holographic media, wherein a photopolymer formulation comprising matrix polymers, writing monomers, a photoinitiator system, and optionally auxiliary materials and additives as components is provided, the photopolymer formulation is applied as a coating on the surface of a carrier film and the photopolymer formulation is dried on the carrier film at a temperature XX<T>YY DEG C, wherein only those compounds having TGA 95 values >100 DEG C. and at least 30 DEG C. above the temperature T are selected as components for the photopolymer formulation. The invention further relates to a holographic medium that can be obtained by means of the method according to the invention.