Color photographic recording material
AssigneeAgfa-Gevaert
InventorPeter Bergthaller
Life of this patent
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Abstract
A color photographic material, the cyan coupler of which is of the formula ##STR1## in which R.sub.11 means an alkyl, aryl, acylamino, alkylcarbamoyl, arylcarbamoyl or a heterocyclic group, R.sub.12 means a group having electron-attracting characteristics, R.sub.13 means a group having electron-attracting characteristics, R.sub.14 means an alkyl or aryl group, R.sub.15 means a divalent linking member having 2 to 4 linking atoms, X means .dbd.O or .dbd.N--SO.sub.2 R.sub.21 and Y means a group eliminable by hydrolytic or intramolecular (nucleophilic) attack, is distinguished by improved processing stability.
Claims4
A color photographic material which comprises on a support at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler together with non-photosensitive layers, an the cyan coupler, of which there is at least one, is of the formula ##STR31## in which R.sub.11 means an alkyl, aryl, acylamino, alkylcarbamoyl, arylcarbamoyl or a heterocyclic group,
- R.sub.12 means a group having electron-attracting characteristics,
- R.sub.13 means a group having electron-attracting characteristics,
- R.sub.14 means an allyl or aryl group,
- R.sub.15 means a divalent linking member having 2 to 4 linking atoms,
- X means .dbd.O or .dbd.N--SO.sub.2 R.sub.21,
- R.sub.21 is a ballast group and
- Y means a group eliminable by hydrolytic or intramolecular (nucleophilic) attack.
Dependencies are inferred from the claim text.