ELECTROPHOTOGRAPHIC MATERIAL Russian patent published in 1998 - IPC

FIELD: light-sensitive materials. SUBSTANCE: electrophotographic material consisting of conducting support and polymer sensitive layer containing organic semiconductor - polyimide with general formula , where n=10-500 and X is carbonyl or oxygen, and sensitizer is distinguished by that the latter contains organic boron complex or , where m=1 or 2, R₁ is p-R₄-phenyl or R₁ together with R₂ are 1,2-naphtho, 2,3- benzothiopheno, or benzo group optionally substituted by methoxy group in position 4; R₃ is ; R₄ is hydrogen or C₁-C₄-alkoxy group; R₅ hydrogen or methoxy group; R_6/ nitro, C₁-C₄-alkoxy, bromo, dimethylamino, or diphenylamino group, in quantity from 3 to 6 mol. % with regard to monomer link of polymer. EFFECT: improved quality of material due to increased light sensitivity of material to monochromatic light with wavelength 600-640 nm.