METHOD OF MAKING HOLOGRAPHIC FILM Russian patent published in 2015 - IPC G11B7/24 G11B7/245 

FIELD: physics, photography.

SUBSTANCE: invention relates to a method of making holographic films and to use of said films. The method includes preparing a photopolymer composition which includes as components matrix polymers, recording monomers, a photoinitiating system, optionally a non-photopolymerisable component, catalysts, radical stabilisers, solvents, adjuvants, as well as other auxiliary substances and/or additives. The photopolymer composition in the form of a continuous film is deposited on a film support and dried at 60<T<120°C. The chosen components of the photopolymer composition are only those compounds whose TGA 95 values are higher than 100°C and at least 30°C higher than the temperature T, and the photopolymer composition used has a plateau modulus of not lower than 0.030 MPa.

EFFECT: obtaining holographic films with the required mechanical strength and load-bearing capacity, which are suitable for recording holograms with a high value of Δn.

16 cl, 6 tbl, 4 dwg