Photographic yellow dye-forming couplers

Details Photographic yellow dye-forming couplers Photographic yellow dye-forming couplers

1998-12-22

2000-03-21

Letscher, Geraldine

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430543, 430556, G03C 108, G03C 726, G03C 732

Patent

active

060401265

ABSTRACT:
A photographic element comprises a light sensitive silver halide emulsion layer having associated therewith an open chain .alpha.-carbonyl acetanilide yellow dye-forming coupler having the formula: ##STR1## wherein R.sub.1 is selected from the group consisting of alkyl, aryl, heterocyclic, and amino groups, provided that R.sub.1 may form a ring bonded to another carbon atom which is a member of Ring "A";

REFERENCES:
patent: 4336327 (1982-06-01), Tanaka et al.
patent: 4404274 (1983-09-01), Curai et al.
patent: 5213958 (1993-05-01), Motoki et al.
patent: 5427898 (1995-06-01), Tang et al.
patent: 5677114 (1997-10-01), Lussier et al.
patent: 5834167 (1998-11-01), Lussier et al.

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