Imido methyl blocked photographic dyes and dye releasing compounds
AssigneeEastman Kodak Company
InventorsJames A. Reczek, Thomas R. Welter
Life of this patent
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Abstract
Imidomethyl blocked photographic image dyes and dye releasing compounds are useful in photographic elements, film units and processes. The blocked photographic dyes and dye releasing compounds have the structures: ##STR1## wherein: J represents ##STR2## X represents the atoms to complete at least one 5- or 6-membered ring; R represents hydrogen, alkyl of 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms; Q represents ##STR3## --Q--DYE represents the residue of a diffusible photographic dye; and CAR is a ballasted carrier moiety from which the dye moiety is released as a function of silver halide development.
Claims36
In a photographic image transfer film unit comprising:
- (a) a photosensitive element comprising a support bearing a layer of a silver halide emulsion having associated therewith a nondiffusible dye-image-providing material, and
- (b) a dye-image-receiving layer, the improvement wherein the dye-image-providing material is an imidomethyl blocked dye-releasing compound having the structure:
- ##STR54## wherein:
- J represents ##STR55## X represents the atoms to complete a heterocyclic nucleus containing at least one 5- or 6-membered ring;
- R represents hydrogen, alkyl of 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms;
- Q represents ##STR56## --Q--DYE represents the residue of a diffusible photographic dye;
- and CAR is a ballasted carrier moiety from which the dye moiety is released as a function of silver halide development.
In a photographic image transfer film unit comprising:
- (a) A photosensitive element comprising a support having thereon a red-sensitive silver halide emulsion unit having associated therewith a cyan-dye-image-providing material, a green-sensitive silver halide emulsion unit having associated therewith a magenta-dye-image-providing material and a blue-sensitive silver halide emulsion unit having associated therewith a yellow-dye-image-providing material;
- and
- (b) a dye-image-receiving layer;
- the improvement wherein at least one of the dye-image-providing materials is a non-diffusible imidomethyl blocked dye-releasing compound having the structure:
- ##STR57## wherein:
- J represents ##STR58## X represents the atoms to complete a heterocyclic nucleus containing at least one 5- or 6-membered ring;
- R represents hydrogen, alkyl of 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms;
- Q represents ##STR59## --Q--DYE represents the residue of a diffusible photographic dye;
- and CAR is a ballasted carrier moiety from which the dye moiety is released as a function of silver halide development.
A photographic element comprising a support bearing a photosensitive silver halide emulsion having associated therewith an imidomethyl blocked dye or dye releasing compound having the structures:
- ##STR77## wherein:
- J represents ##STR78## X represents the atoms to complete a heterocyclic nucleus containing at least one 5- or 6-membered ring;
- R represents hydrogen, alkyl of 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms;
- Q represents ##STR79## --Q--DYE represents the residue of a diffusible photographic dye;
- and CAR is a ballasted carrier moiety from which the dye moiety is released as a function of silver halide development.
A photographic element comprising a support having thereon a red-sensitive silver halide emulsion unit having associated therewith a cyan-dye-image providing material, a green-sensitive silver halide emulsion unit having associated therewith a magenta-dye-image-providing material and a blue-sensitive silver halide emulsion unit having associated therewith a yellow-dye-image providing material, at least one of the dye image providing materials being an imidomethyl blocked dye or dye releasing compound having the structures:
- ##STR80## wherein:
- J represents ##STR81## X represents the atoms to complete a heterocyclic nucleus containing at least one 5- or 6-membered ring;
- R represents hydrogen, alkyl of 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms;
- Q represents ##STR82## --Q--DYE represents the residue of a diffusible photographic dye;
- and CAR is a ballasted carrier moiety from which the dye moiety is released as a function of silver halide development.
An imidomethyl blocked dye or dye releasing compound having one of the structures:
- ##STR97## wherein:
- J represents ##STR98## Y represents the atoms to complete a heterocyclic nucleus containing at least one 5- or 6-membered ring;
- R represents hydrogen, alkyl of 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms;
- Q represents ##STR99## --Q--DYE represents the residue of a diffusible photographic dye;
- and CAR is a ballasted carrier moiety from which the dye moiety is released as a function of silver halide development.
Dependencies are inferred from the claim text.