Light-sensitive photographic material

Details Light-sensitive photographic material Light-sensitive photographic material

C - Chemistry, Metallurgy

07

D

96/118, 96/185,

C07D 233/70 (2006.01) C07D 233/86 (2006.01) C07D 277/34 (2006.01) C07D 277/36 (2006.01) G03C 5/30 (2006.01) G03C 7/305 (2006.01)

Patent

CA 1114384

Abstract of the Disclosure Development inhibitor releasing compounds are thioether compounds capable of releasing on reaction with color developer oxidation products, a diffusible mercaptan that inhibits further development of silver halide. Useful DIR compounds correspond to the formula Image R1 represents hydrocarbyl Y represents -S- or -NR2- R2 represents hydrogen, hydrocarbyl or an electron-attracting substituent. X in its prefered embodiment represents a heteroaromatic group that when split of together with the sulfur atom forms a silver halide development inhibiting mercaptans.

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