Photographic dye-forming coupler, emulsion layer, element, and p

Details Photographic dye-forming coupler, emulsion layer, element, and p Photographic dye-forming coupler, emulsion layer, element, and p

1996-03-27

1997-10-28

Letscher, Geraldine

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430552, 430385, G03C 109, G03C 726, G03C 732

Patent

active

056816901

ABSTRACT:
The invention provides a photographic light sensitive silver halide emulsion layer having associated therewith a phenolic dye-forming coupler having the formula: ##STR1## wherein: R.sup.1 and R.sup.2 are independently selected from hydrogen and alkyl or aryl groups;

REFERENCES:
patent: 4333999 (1982-06-01), Lau
patent: 4840883 (1989-06-01), Masukawa et al.
patent: 4923791 (1990-05-01), Merkel et al.
patent: 5162197 (1992-11-01), Aoki et al.
patent: 5378596 (1995-01-01), Naruse et al.

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