Aromatic glycol ethers as writing monomers in holographic photopolymer formulations

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United States of America Patent

PATENT NO 9921473
SERIAL NO

15306272

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Abstract

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The invention relates to a photopolymer formulation comprising specific aromatic glycol ethers as writing monomers, matrix polymers and a photoinitiator. The invention further provides an unexposed holographic medium obtainable using an inventive photopolymer formulation, and an exposed holographic medium obtainable by exposing a hologram into an inventive unexposed holographic medium. The invention likewise provides a visual display comprising an inventive exposed holographic medium, for the use of an inventive exposed holographic medium for production of chip cards, identification documents, 3D images, product protection labels, labels, banknotes or holographic optical elements, and specific aromatic glycol ethers.

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Patent Owner(s)

Patent OwnerAddress
COVESTRO DEUTSCHLAND AG51373 LEVERKUSEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berneth, Horst Leverkusen, DE 138 1323
Bruder, Friedrich-Karl Krefeld, DE 129 1353
Fäcke, Thomas Leverkusen, DE 67 1053
Hönel, Dennis Zülpich-Wichterich, DE 62 1015
Hagen, Rainer Leverkusen, DE 92 747
Rölle, Thomas Leverkusen, DE 60 910
Walze, Günther Leverkusen, DE 21 94
Weiser, Marc-Stephan Leverkusen, DE 65 1107

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