PHOTOPOLYMER COMPOSITION FOR HOLOGRAM RECORDS Russian patent published in 2004 - IPC

Abstract RU 2222038 C2

FIELD: polymer materials. SUBSTANCE: photopolymer composition for recording reflecting and transmitting holograms contains (i) polymer binder; (ii) monomer component: N-acryloyl compounds of formula I: (I) wherein R1 and R2 are hydrogen atoms (acrylamide), R1 and R2 are methyl groups (N, N-dimethylacrylamide), R1 is hydrogen and R2 is allyl group (N-allylacrylamide), or R1,R2 denotes substituent of formula II: (II) wherein X is methylene group (N- acryloylpiperidin), ethylimino group (1-acryloyl-4-ethylpiperazine), oxygen (N-acryloylmorpholine), piperazinyl (1-acryloyl-4-phenylpiperazine); (iii) poly(vinyl alcohol) derivative containing tertiary amino group expressed by formula III: (III) wherein l+m+n=800-1000, l=10-40%, m= 30-80%, n=5-30%, Y is methylene, hydroxymethylimino, ethylimino, piperazino group, or oxygen atom; (iv) erythrosine or methylene blue dye; (v) hydrogen donor: 4-ethyl- (4H)-1,2,4-triazole-3-thiol; (v) crosslinking agent: 1,4- bis(acryloyl)piperazine or 1,4,7-tris(acryloyl)-1,4,7-triazacyclononane; (vi) surfactant of formula IV: (IV) wherein x+y+z= 20 and n=11, 15, or 17; and (vi) radical carrier: benzothiazole disulfide or benzoxazole disulfide. EFFECT: enabled records of reflecting holograms manifesting, after corresponding treatments, high diffraction efficiency. 38 ex

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RU 2 222 038 C2

Authors

Shelkovnikov V.V.

Gerasimova T.N.

Pen E.F.

Konstantinova A.V.

Sazonov Ju.A.

Loskutov V.A.

Berezhnaja V.N.

Sinjukov A.M.

Dates

2004-01-20Published

2002-01-08Filed