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:
Sep. 19, 1995
Filed:
Mar. 17, 1994
Paul B Merkel, Rochester, NY (US);
Jerrold N Poslusny, Rochester, NY (US);
James P Merrill, Rochester, NY (US);
Bernard A Clark, Maidenhead, GB;
Paul L Stanley, Harrow, GB;
Hugh M Williamson, Hanwell, GB;
Eastman Kodak Company, Rochester, NY (US);
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.