Photographic material containing yellow couplers

Details Photographic material containing yellow couplers Photographic material containing yellow couplers

1974-12-03

1976-12-21

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

Collecting electrode details

96 563, G03C 140

Patent

active

039986411

ABSTRACT:
Diffusion-fast yellow couplers for color photographic silver halide materials with at least one silver halide emulsion layer are provided containing a substituted or unsubstituted 2-cyclotetramethylene sulfone group in a non-coupling position of the coupler molecule which couplers are excellently emulsifiably in color photographic emulsions, are highly reactive and stable under heat and tropic conditions. The dyes produced from them by chromogenic development in color developers containing aromatic components of the p-phenylene diamine series which contains at least one primary amino group are eminently stable under heat and tropic conditions, have a low side absorptions in the unwanted region of the spectrum and low fog values.

REFERENCES:
patent: 2319426 (1943-05-01), Middleton et al.
patent: 3689271 (1972-09-01), Nittel et al.
patent: 3841880 (1974-10-01), Kertel
patent: 3843366 (1974-10-01), Van Poucke et al.

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