Fluorourethane as an additive in a photopolymer formulation
AssigneeBayer MaterialScience AG
InventorsThomas Rölle, Friedrich-Karl Bruder, Thomas Fäcke, Marc-Stephan Weiser, Dennis Honel
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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.
Claims13
A photopolymer formulation comprising matrix polymers, writing monomers and photoinitiators, wherein the photopolymer formulation further comprises fluorourethanes as plasticizers, wherein the matrix polymers comprise polyurethanes and wherein the photopolymer formulation consists essentially of 15 to 79% by weight of matrix polymers, 5 to 50% by weight of acrylate writing monomers having a refractive index of nd20>1.50, 1 to 10% by weight of photoinitiators, between 5 and 40% by weight of fluorourethanes and 0 to 10% by weight of further additives, wherein the sum of the constituents being 100% by weight.
Dependencies are inferred from the claim text.