FLUOROURETHANES AS ADDITIVE IN PHOTOPOLYMER COMPOSITION Russian patent published in 2015 - IPC G11B7/245 C08G18/38 C08G18/79 G03F7/35 

FIELD: chemistry.

SUBSTANCE: invention relates to a photopolymer composition for producing optical elements, which includes matrix polymers, writing monomers and photoinitiators, wherein the matrix polymers are polyurethanes and the writing monomers are acrylates, the composition containing as plasticisers fluoroethanes, wherein the fluoroethanes have the general formula wherein n≥1 and n≤8, R¹, R², R³ are hydrogen and/or independently straight, branched, cyclic or heterocyclic, unsubstituted or optionally heteroatom-substituted organic residues, wherein at least one of the residues R¹, R², R³ is substituted with at least one fluorine atom and the fluoroethanes have a refraction index $$n_D^{20}\le \mathrm{1,4600.}$$ The invention also relates to use of the photopolymer composition to produce topographic elements and images, a method of exposing topographic media made from the photopolymer composition, as well as to fluorourethanes of general formula wherein m≥1 and m≤8, R⁴, R⁵, R⁶ is hydrogen and/or independently straight, branched, cyclic or heterocyclic unsubstituted or optionally heteroatom-substituted organic residues and iminooxadiazine dione and/or oxadiazine dione structural elements, wherein simultaneously at least two of the residues R⁴, R⁵, R⁶ are substituted with at least one fluorine atom.

EFFECT: producing high-brightness holograms.

11 cl, 2 dwg, 3 tbl