Photopolymer formulation having ester-based writing monomers

US9057950B2 · kind B2 · utility

Assignee

• Bayer Intellectual Property GmbH · DE

Inventors

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

Key dates

• Filing date: Jan 28, 2011
• Grant date: Jun 16, 2015
• Expiry date: Sep 26, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G11B7/0065
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention relates to a photopolymer formulation comprising matrix polymers, writing monomers, and photoinitiators, wherein the writing monomers comprise compounds of formula (I), where at least one of the radicals R1, R2, R3, R4, R5, R6 is a radical bonded to the aromatic ring via X of formula (II), where, in formula (II), A is a linear or branched hydrocarbon, optionally comprising oxygen or nitrogen, the remaining radicals R1, R2, R3, R4, R5, R6 are, independent of each other, hydrogen or an organic radical, and R7 is hydrogen or methyl. The invention further relates to the use of the photopolymer formulation for producing holographic media.