Photographic element containing a certain sulfonated acylacetani

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...

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430557, 430567, G03C 1035, G03C 736

Patent

active

054985153

ABSTRACT:
The invention provides a photographic element comprising a support bearing a blue-light sensitive silver halide emulsion layer containing an acylacetanilide yellow image dye-forming coupler having formula I or II: ##STR1## wherein: R.sub.a is a substituted or unsubstituted alkyl, alkoxy, or aryloxy group;
R.sub.b is a substituted or unsubstituted alkyl or aryl group;
R.sub.c is hydrogen or a substituted or unsubstituted alkyl group;
R.sub.1 is a substituent;
n is an integer from 0 to 2;
R.sub.2 is selected from the group consisting of halogen, trifluoromethyl, and substituted or unsubstituted alkoxy and aryloxy;
R.sub.3 is a substituted or unsubstituted alkyl group;
R.sub.4 is hydrogen, halogen, alkoxy carbonyl (--CO.sub.2 R), carbamoyl (--CONRR'), carbonamido (--NRCOR'), sulfonamido (--NRSO.sub.2 R') or trifluoromethyl; R.sub.1 is a substituent;
X is hydrogen or a coupling-off group;
wherein said blue-light sensitive silver halide emulsion layer is a low-chloride silver halide emulsion.
The invention enables improved image quality through increased interimage effects.

REFERENCES:
patent: 3973968 (1976-08-01), Fujiwhara et al.
patent: 4022620 (1977-05-01), Okumura et al.
patent: 4026706 (1974-06-01), Nakamura et al.
patent: 4693964 (1987-09-01), Daubendick et al.
patent: 4871658 (1989-10-01), Sakamoto et al.
patent: 5066574 (1991-11-01), Kubota et al.
patent: 5272048 (1993-12-01), Kim et al.

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