PHOTOGRAPHIC MATERIAL COMPRISING A LAYER CAPABLE OF BEING COLORED BY ORGANIC DYES CONTAINING A NI COMPLEX OF A 2,2'-BISPHENOL DERIVATIVE

摘要

PHOTOGRAPHIC MATERIAL COMPRISING A LAYER CAPABLE OF BEING COLORED BY ORGANIC DYES In a photographic material suitable for use as image receptor element for the dye diffusion transfer process, a dyeable layer arranged on ? layer support contains nickel chelates of a 2,2'-bisphenol corresponding to one of the general formulae I and II as metallizing agents for the formation of colored complexes of organic colorless or colored complex formers. The chelatizable image dyes which are transferred image-wise into the dye absorbent layer in the process of development give rise to the corresponding nickel complexes which have improved light stability. < IMG > I < IMG > II < IMG > R1 = a hydrocarbon group optionally attached through -O- or a halogen or R4; R2 = hydrogen, halogen, alkyl or alkoxy, alkenyl a condensed benzene ring or R4 if R1 does not denote AG 1804 a group R4; R3 = R2 or < IMG > < IMG > -NH-CO-R2 or -NH-SO2-R ; R5 = alkyl, aralkyl or cycloalkyl; R6, R7 = hydrogen, alkyl, aralkyl, aryl, cycloalkyl or together denote a residue for completing a cyclic amino group; R8 = alkyl, aralkyl, aryl, < IMG > R9 = alkyl, aryl or < IMG > AG 1804