Eastman-kodak Company

Harland J Osborn

Robert G Cameron

Edward J Walsh

Ballasted primary and secondary 3'-sulfamoyl-1-hydroxy-2-naphthanilide couplers are disclosed as well as compositions and photographic elements containing these couplers in coupler solvent particles. The coupler solvent particles are comprised of a combination of a coupler solvent and the coupler capable of permitting the formation of a microcrystalline dye. Surprisingly these microcrystalline dyes exhibit a broadened absorption characteristic in the 750 to 850 nm region of the spectrum. Dye images having such absorption characteristics are particularly suited to forming integral infrared absorbing sound tracks in photographic elements, such as motion picture projection films.

Phenylsulfamoyl couplers, coupler compositions and photographic elements

Phenylsulfamoyl couplers

Phenolic dye-forming couplers

2,5-Dicarbonylaminophenols containing a p-alkyl-sulfonylaminophenoxy terminal moiety or a p-alkylamino-sulfonylphenoxy terminal moiety in the five-position substituent of the molecule are color-forming couplers useful in photographic silver halide emulsions and elements.

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Rochester, NY, United States of America

Harland J Osborn