Fluorourethane as an additive in a photopolymer formulation
AssigneeBayer Intellectual Property GmbH
InventorsThomas Rölle, Friedrich-Karl Bruder, Thomas Fäcke, Marc-Stephan Weiser, Dennis Hönel
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Abstract
The invention relates to a photopolymer formulation comprising matrix polymers, writing monomers, and photoinitiators, to the use of the photopolymer formulation for producing optical elements, in particular for producing holographic elements and images, to a method for illuminating holographic media made of the photopolymer formulation, and to special fluorourethanes.
Claims21
-15. (canceled)
A photopolymer formulation comprising matrix polymers, writing monomers and photoinitiators, wherein the photopolymer formulation further comprises fluorourethanes as plasticizers.
Fluorourethane, obtained by reacting a polyisocyanate which comprises iminooxadiazinediones or oxadiazadione and has at least one free isocyanate group with an alcohol, wherein the polyisocyanate and/or the alcohol are substituted by at least one fluorine atom.
Fluorourethanes according to the formula (III)
- wherein
- m is from 1 to 8 and
- R4, R5, R6 represent, independently of one another, hydrogen or linear, branched, cyclic or heterocyclic organic radicals which are unsubstituted or optionally also substituted by heteroatoms and have iminooxadiazinedione and/or oxadiazadione structural elements, wherein at the same time at least two of the radicals R4, R5, R6 are substituted by at least one fluorine atom.
Dependencies are inferred from the claim text.