Patent ID: 6124086
Filing Date: 2000-09-26
Classification: G03C

Abstract:
A photographic element wherein at least one layer comprises silver halide grains wherein said grains have a surface iodide of less than 0.6 mol percent, total grain iodide of about 1.0 to 10 mol percent, an alkynylamine compound of Formula I: ##STR8## wherein X represents oxygen, R.sup.1 represents hydrogen, and R.sup.2 represents hydrogen, or an alkyl group, and R.sup.3 and R.sup.4 represent hydrogen, and the reductone of Formula II ##STR9## wherein R.sub.1 and R.sub.2 are the same or different, and represent H, alkyl, cycloalkyl, aryl, or an alkyl group with a solubilizing group of --OH, sulfonamide, sulfamoyl, or carbamoyl, R.sub.1 and R.sub.2 may be joined to complete a heterocyclic ring, R.sub.4 and R.sub.5 are H, OH, alkyl, aryl, cycloalkyl, or may together represent an alkylidene group, n is 1 or 2 and R.sub.3 is H, alkyl, aryl, or CO.sub.2 R.sub.6 where R.sub.6 is alkyl, andwherein the logarithm of the partition coefficient for the reductone when equilibrated as a solute between n-octanol and water (logP) is less than 0.293.