Photographic element containing a certain sulfonated acylacetani

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...

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430544, 430557, 430957, 430359, G03C 146

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active

054514932

ABSTRACT:
The present 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 groups, alkoxy group 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 substituted or unsubstituted alkyl;
R.sub.4 is hydrogen, halogen, alkoxy carbonyl (--CO.sub.2 R), carbamoyl (--CONRR'), carbonamido (--NRCOR'), sulfonamido (--NRSO.sub.2 R') or trifluoromethyl; and
X is hydrogen or a coupling-off group;
and wherein the blue-light sensitive silver halide emulsion layer has associated therewith a development inhibitor releasing coupler. The invention also provides a method of forming an image in such an element.

REFERENCES:
patent: 3973968 (1976-08-01), Fujiwhara et al.
patent: 4022620 (1977-05-01), Okumura et al.
patent: 4026709 (1977-05-01), Piller et al.
patent: 4980267 (1990-12-01), Taber
patent: 5066574 (1991-11-01), Kubota et al.

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