logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9760060 B1

PDFFull Text
Date of Patent:
Sep. 12, 2017

Filed:

Aug. 14, 2015

Photopolymer formulations for producing holographic media having highly crosslinked matrix polymers

Applicant:

Covestro Deutschland Ag, Leverkusen, DE;

Inventors:

Horst Berneth, Leverkusen, DE;

Thomas Roelle, Leverkusen, DE;

Friedrich-Karl Bruder, Krefeld, DE;

Thomas Fäcke, Leverkusen, DE;

Marc-Stephan Weiser, Leverkusen, DE;

Dennis Hönel, Zülpich-Wichterich, DE;

Assignee:

Covestro Deutschland AG, Leverkusen, DE;

Attorney:

Drinker Biddle & Reath LLP

Primary Examiner:

Martin Angebranndt

Int. Cl.
CPC ...
G03H 1/02 (2006.01); G03F 7/035 (2006.01); G03F 7/031 (2006.01); G11B 7/24044 (2013.01); C09B 11/12 (2006.01); C09B 17/00 (2006.01); C09B 21/00 (2006.01); C09B 23/08 (2006.01); C09B 55/00 (2006.01); C09B 57/00 (2006.01); C09B 69/06 (2006.01); G03F 7/004 (2006.01); C09B 23/04 (2006.01); C09B 23/06 (2006.01); C09B 23/10 (2006.01); C09B 23/16 (2006.01); G11B 7/245 (2006.01); C09B 49/12 (2006.01); G03C 1/00 (2006.01); G03H 1/00 (2006.01);
U.S. Cl.
CPC ...
G03H 1/024 (2013.01); C09B 11/12 (2013.01); C09B 17/00 (2013.01); C09B 21/00 (2013.01); C09B 23/04 (2013.01); C09B 23/06 (2013.01); C09B 23/083 (2013.01); C09B 23/105 (2013.01); C09B 23/166 (2013.01); C09B 49/12 (2013.01); C09B 55/009 (2013.01); C09B 57/00 (2013.01); C09B 69/06 (2013.01); C09B 69/065 (2013.01); G03C 1/00 (2013.01); G03F 7/0045 (2013.01); G03F 7/035 (2013.01); G03H 1/00 (2013.01); G11B 7/245 (2013.01); G03H 2260/12 (2013.01); G03H 2260/14 (2013.01); G11B 7/24044 (2013.01);
Abstract

The invention relates to a photopolymer formulation comprising a polyol component, a polyisocyanate component, a writing monomer, and a photoinitiator, containing a coinitiator and a dye having the formula F An, where F stands for a cationic dye and An″ stands for an anion, wherein the dye having the formula F An comprises a water absorption of =5%. The invention further relates to a holographic medium, in particular in the form of a film, containing a photopolymer formulation according to the invention, to the use of such a medium for recording holograms, and to a special dye that can be used in the photopolymer formulation according to the invention.

Find Patent Forward Citations

Loading…