Urethanes used as additives in a photopolymer formulation
AssigneeBayer MaterialScience AG
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 photo initiators, to a method for producing said photopolymer formulation, a photopolymer formulation obtained according to said method, a sheeting, a film, a layer, a layer structure or a moulded body made from said photopolymer formulation and to the use of said photopolymer formulation for producing optical elements, in particular for producing holographic elements and images.
Claims14
A photopolymer formulation comprising matrix polymers, writing monomers and photoinitiators, wherein the photopolymer formulation further comprises urethanes as plasticizers, wherein the urethanes have a molecular weight of less than or equal to 250 g/mol, wherein the matrix polymers comprise polyurethanes and wherein the urethanes consists of aliphatic urethanes having the formula (I),
- Wherein R1 and R2 are independent of one another, represent a linear or branched (C1-C20)-alkyl radical and R3 is hydrogen.
Dependencies are inferred from the claim text.