The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 1996
Filed:
Mar. 17, 1994
Paul B Merkel, Rochester, NY (US);
Jerrold N Poslusny, Rochester, NY (US);
Hugh M Williamson, Hanwell, GB;
Bernard A Clark, Maidenhead, GB;
Paul L Stanley, Harrow, GB;
Eastman Kodak Company, Rochester, NY (US);
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.