Patent · US Active

Method for producing a holographic film

US8889321B2 · kind B2 · utility

7Cited by

7References

17Claims

0Family size

Assignee

Bayer MaterialScience AG · DE

Inventors

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

Key dates

Filing date	Nov 2, 2010
Grant date	Nov 18, 2014
Priority date	—
Expiry date	May 13, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG03H2260/30
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for producing a holographic film, wherein a photopolymer formulation comprising matrix polymers, writing monomers, photoinitiator system, and optionally auxiliary materials and additives is provided, the photopolymer formulation is applied as a film to the surface of a substrate, and the film is dried, wherein a photopolymer formulation having a plateau module G0 of =0.03 MPa is used. The invention further relates to a holographic medium that can be obtained by means of the method according to the invention.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.