Process for forming cyan dye photographic images

Details Process for forming cyan dye photographic images Process for forming cyan dye photographic images

1975-01-22

1977-02-22

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

And serially arranged nonelectrical separator

96100, G03C 700, G03C 140

Patent

active

040090353

ABSTRACT:
A cyan coupler of the formula A -- NHCO(CF.sub.2 CF.sub.2).sub.n H wherein A is a phenolic or naphtholic cyan coupler residue and n is a positive integer of 1 to 7, incorporated in a light-sensitive silver halide photographic material produces a cyan dye photographic image which is favorable in light absorption characteristics and excellent in fastness when the coupler is developed with an aromatic primary amine type developing agent.

REFERENCES:
patent: 2895826 (1959-07-01), Salminen et al.
patent: 3462270 (1969-08-01), Eynde et al.
patent: 3758308 (1973-09-01), Beavers et al.
patent: 3779763 (1973-12-01), Lau

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