Photographic element containing a novel cyan dye forming coupler

Details Photographic element containing a novel cyan dye forming coupler Photographic element containing a novel cyan dye forming coupler

1994-12-19

1995-12-19

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430385, 430552, 430553, G03C 734

Patent

active

054767571

ABSTRACT:
A photographic element comprises a light sensitive silver halide emulsion layer having associated therewith a cyan dye-forming coupler dispersed in an organic solvent, the coupler having the formula: ##STR1## wherein A, B, and C are hydrogen or fluorine;
X is selected from the group consisting of halogen, alkoxy and methyl groups;
R is a straight chain aliphatic group which is unsubstituted or substituted with one or members selected from the group consisting of --F, --R", --OR", --SO.sub.2 R", --SO.sub.2 NHR", --CONHR", --COOR", --NHCOR", --NHSO.sub.2 R", and --OCOR" where R" is a primary or secondary alkyl group;
R' is a substituent group and m is from 0 to 4;
COG is hydrogen or a coupling-off group capable of being split-off by an oxidized color developer; and
wherein the substituent groups X, R, and R' are selected so as to ballast the coupler and prevent it from wandering within the photographic coatings.
The invention also encompasses a process for forming an image in an element as described after it has been exposed.

REFERENCES:
patent: 3556796 (1971-01-01), Van den Eynde
patent: 4208210 (1980-06-01), Sakai et al.
patent: 4725530 (1988-02-01), Kobayashi et al.
patent: 4833069 (1989-05-01), Hamada et al.
patent: 4857442 (1989-08-01), Fujita et al.
patent: 4883746 (1989-11-01), Shimada et al.
patent: 4957853 (1990-09-01), Kobayashi et al.
patent: 4983503 (1991-01-01), Ishikawa et al.
Research Disclosure 29015, Jun. 1988, Disclosed Anonymously.

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