Photographic elements containing emulsion stabilizers
AssigneeEastman Kodak Company
InventorRoger Lok
Life of this patent
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Abstract
A color negative or reversal photographic element comprising a support having situated thereon a non-tabular silver halide emulsion layer, said emulsion layer being predominantly silver chloride and containing a compound of the formula: ##STR1## where R represents an aliphatic, carbocyclic, or heterocyclic group; X represents oxygen, sulfur, selenium, or unsubstituted or alkyl or aryl substituted nitrogen; and Z.sup.1 and Z.sup.2 independently represent hydrogen, an acyl, aliphatic, carbocyclic, or heterocyclic group.
Claims15
A color negative or reversal photographic element comprising a support having situated thereon a non-tabular silver halide emulsion layer, said emulsion layer being predominantly silver chloride and containing a compound of the formula:
- ##STR10## where R represents an alkyl, alkenyl, or aryl group;
- X represents oxygen, sulfur, selenium or unsubstituted or alkyl or aryl substituted nitrogen;
- and Z.sup.1 and Z.sup.2 independently represent hydrogen, an acyl, aliphatic, carbocyclic, or heterocyclic group.
A method for controlling fog formation in a color negative or color reversal photographic non-tabular emulsion as a result of storage conditions, comprising adding to the emulsion, during its formation, a compound of the formula:
- ##STR12## where X represents oxygen or sulfur, R represents an alkyl or aryl group, and Z.sup.1 and Z.sup.2 independently represent hydrogen or an acyl, alkyl, alkenyl, or aryl group.
Dependencies are inferred from the claim text.