LIQUID COMPOSITION FOR PHOTOPOLYMERISATION-ABLE FILM FOR HOLOGRAM RECORDING, METHOD OF COMPOSITION OBTAINING, METHOD OF OBTAINING SAID FILM Russian patent published in 2015 - IPC G03F7/28 G03F7/27 G03F7/07 G03F7/33 B82B1/00 

FIELD: chemistry.

SUBSTANCE: inventions relate to liquid composition for obtaining photopolymerisation-able film for recording holograms, method of obtaining said liquid composition and method of obtaining photopolymerisation-able film. Claimed photopolymerisation-able film forms image due to refractive index modulation with exposure to activating irradiation with wavelength 325-550 nm. Composition contains from 30 to 69.45 wt % of liquid acryl monomer, which has at least one acid group COOH and belongs to carboxylic acids, from 30 to 69.45 wt % pf oligomers of mono- and diacrylates, from 0.5 to 25 wt % of nanoparticles of oxides of zinc, or silicon, or titanium or metal sulphides ZnS or CdS, covered or non-covered with organic envelopes and having size from 2 to 30 nm, from 0.05 to 5 wt % of photopolymerisation initiator.

EFFECT: increased value of refraction index modulation, increase of diffraction efficiency to 60% and increase of obtained photopolymerisation-able film thickness to 30 mcm, which is provided due to application in composition of highly-refractive nanoparticles, photostimulated diffusion of which creates refraction index modulation.

3 cl, 3 tbl, 8 ex