Eastman-kodak Company

Gregory J Lestina

Stephen P Singer

John W Harder

John A Ford, Jr

Walter Monroe Bush

Jon D Bass

David T Southby

Wojciech K Slusarek

David A Steele

Teh-Hsuan Chen

A photographic development inhibitor releasing compound comprises a releasable development inhibitor group comprising an amide group containing a carbon alpha to the amide functionality which is di- or tri-fluorinated. Such a compound is useful in photographic silver halide materials and processes to enable increased image sharpness and good interimage results.

Photographic material and process employing a development inhibitor

This invention relates to novel photographic dye-forming coupler compounds which are non-diffusible as incorporated in a photographic element, but which, during processing, are converted to a form which is removable from the element if the coupler compound has not reacted with oxidized silver halide color developing agent.

Photographic elements containing removable couplers

Nondiffusible photographic couplers and photographic elements and

Photographic couplers comprising a coupler moiety and a ballast moiety have advantageous properties when the ballast moiety is terminated with a hydroxyphenylsulfonyl or hydroxyphenylsulfinyl group. The couplers are useful in photographic emulsions and element.

Shifted photographic dyes which have good storage stability, yet rapidly unblock under processing conditions contain a blocked hydroxy group and a neighboring group that anchimerically assists the hydrolytic cleavage of the blocking group under processing conditions.

Shifted photographic dyes and compositions, elements and processes

Oxichromic compounds which contain a reduced azomethine linkage are disclosed with processes for making same. In one aspect, the oxichromic compounds are N-stabilized compounds which have an acyl stabilizing group on the nitrogen atom of the reduced azomethine linkage. The compounds undergo chromogenic oxidation to produce dyes.

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Rochester, NY, United States of America

Gregory J Lestina