Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1996-12-12
1998-12-22
Letscher, Geraldine
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430556, 430389, 430523, 430543, G03C 108, G03C 726, G03C 732
Patent
active
058517480
ABSTRACT:
The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a yellow dye-forming coupler having the formula: ##STR1## wherein X, Y, Z, W are independently selected from the group consisting of H, alkyl, aryl, halogen, alkoxy and aryloxy groups, provided that X and W may join to form a saturated ring;
Each A is selected from the group consisting of halogen, alkoxy and aryloxy groups;
m is an integer from 1 to 3;
each B is independently selected from the group consisting of --C(O)OR.sub.2 and --NHSO.sub.2 R.sub.3 wherein R.sub.2 and R.sub.3 are independently selected from the group consisting of alkyl and aryl groups;
n is an integer from 1 to 3; and
R.sub.1 is a substituent group.
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patent: 5215878 (1993-06-01), Tsoi
patent: 5217857 (1993-06-01), Hayashi et al.
patent: 5719018 (1998-02-01), Katsumata et al.
Cowan Stanley W.
Decker David J.
Rosiek Thomas A.
Tang Ping-Wah
Eastman Kodak Company
Kluegel Arthur E.
Letscher Geraldine
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