Photographic element containing pyrazolone pug releasing coupler

Details Photographic element containing pyrazolone pug releasing coupler Photographic element containing pyrazolone pug releasing coupler

1998-12-30

2000-11-28

Letscher, Geraldine

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430544, 430955, 430956, 430957, 430958, 430959, 430960, G03C 108, G03C 726, G03C 732

Patent

active

061533696

ABSTRACT:
Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a pyrazol-5-one coupler bearing a 4-aryloxy coupling-off group containing a group capable of releasing a photographically useful group (PUG) wherein:

REFERENCES:
patent: 3419391 (1968-12-01), Young
patent: 4686175 (1987-08-01), Ogawa et al.
patent: 4985336 (1991-01-01), Ichijima et al.
patent: 5576167 (1996-11-01), Poslusny et al.
patent: 5670306 (1997-09-01), Poslusny et al.

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