Photographic element containing particular coupler combination
AssigneeEastman Kodak Company
InventorsPaul B. Merkel, Jerrold N. Poslusny, Ronald E. Leone
Life of this patent
Estimating the term…
Abstract
The invention provides a photographic element comprising a silver halide emulsion layer sensitive to green light having associated therewith (a) a 1-aryl-3-anilino-4-benzotriazolyl-5-pyrazolone magenta dye-forming DIR coupler of a particular formula, and (b) a 1-aryl-3-anilino-4-phenylthio-5-pyrazolone magenta image dye forming coupler of a particular formula. The element of the invention provides an improved interimage of a green sensitized layer in a multicolor silver halide photographic element.
Claims20
A photographic element comprising a silver halide emulsion layer sensitive to green light having associated therewith (a) a 1-aryl-3-anilino-4-benzotriazolyl-5-pyrazolone magenta dye-forming DIR coupler of formula I, and (b) a 1-aryl-3-anilino-4-phenylthio-5-pyrazolone magenta image dye forming coupler of formula II:
- ##STR33## wherein:
- Ar.sub.1 is an unsubstituted aryl group or an aryl group with one or more substituents individually selected from the group consisting of halogen atoms and alkyl, phenyl, alkoxy, aryloxy, carbonamido, carbamoyl, acyloxy, alkoxycarbonyl, aryloxycarbonyl, sulfonamido, sulfamoyl, sulfonyl, sulfoxyl, sulfonyloxy, and cyano groups;
- R.sub.1 is a hydrogen or halogen atom or an alkyl or alkoxy group;
- each R.sub.2 may be in the para position or either meta position relative to the NH group and is individually selected from the group consisting of halogen atoms and alkyl, phenyl, alkoxy, phenoxy, carbonamido, carbamoyl, acyloxy, alkoxycarbonyl, aryloxycarbonyl, sulfonamido, alkylsulfonyl, arylsulfonyl, sulfoxyl, sulfonyloxy, sulfamoyl, alkylthio, arylthio, cyano, and imido groups, and p is 0, 1 or 2;
- R.sub.3 and R.sub.4 are individually selected from hydrogen and halogen atoms, and from alkyl, phenyl, alkoxy, phenoxy, alkoxycarbonyl, aryloxycarbonyl, carbonamido (including alkyl-, aryl-, alkoxy- and aryloxycarbonamido), sulfonamido, carbamoyl and carbamoyloxy groups;
- provided that at least one of R.sub.3 and R.sub.4 is other than hydrogen;
- ##STR34## wherein:
- Ar.sub.2 is an unsubstituted aryl group or an aryl group with one or more substituents individually selected from the group consisting of halogen atoms and alkyl, phenyl, alkoxy, aryloxy, carbonamido, carbamoyl, acyloxy, alkoxycarbonyl, aryloxycarbonyl, sulfonamido, sulfamoyl, sulfonyl, sulfoxyl, sulfonyloxy, and cyano groups;
- R.sub.6 is a hydrogen or halogen atom or an alkyl or alkoxy group;
- each R.sub.7 may be in the para position or either meta position relative to the NH group and is individually selected from the group consisting of halogen atoms and alkyl, phenyl, alkoxy, phenoxy, carbonamido, carbamoyl, acyloxy, alkoxycarbonyl, aryloxycarbonyl, sulfonamido, alkylsulfonyl, arylsulfonyl, sulfoxyl, sulfonyloxy, sulfamoyl, alkylthio, arylthio, cyano, and imido groups, and q is 0, 1 or 2;
- R.sub.8 and R.sub.9 are individually selected from the group consisting of hydrogen and halogen atoms and alkyl, alkoxy, phenoxy, carbonamido, carbamoyl, sulfonamido, sulfamoyl, alkylsulfonyl, arylsulfonyl, alkoxycarbonyl, aryloxycarbonyl, acyloxy, sulfoxyl, and sulfonyloxy groups, and r is 0, 1 or 2;
- R.sub.9 is in the para position or either meta position relative to the sulfur atom;
- and
- the total number of carbon atoms in R.sub.8 and R.sub.9 taken together is at least 4.
Dependencies are inferred from the claim text.