Substituted sulfonamido compounds, photosensitive elements, film units, and processes for retaining a photographic image with same

Claim 2

A photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one redox releaser, wherein each said redox releaser is a nondiffusible sulfonamido compound which is alkali-cleavable upon oxidation to release a diffusible photographically useful material, said nondiffusible sulfonamido compound having the formula: ##STR39## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubsituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group: (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 3

The photosensitive element of claim 1 wherein PUG represents a dye or a dye precursor.

Claim 4

The element of claim 1 wherein R 2 represents an alkyl group having from 1 to 6 carbon atoms, or a phenyl group.

Claim 5

The element of claim 1 wherein said sulfonamido redox releaser is: (a) 3,4,6-trimethyl-5-[3-(1-hydroxy-5-methanesulfonamido-4-naphthylazo)-benzenesulfonamido]-N,N-didodecylsalicylamide, (b) 3,4,6-trimethyl-5-[4-(4-hydroxy-3-chlorophenylazo)-benzenesulfonamido]-N,N-didodecylsalicylamide, (c) 1-hydroxy-3-methyl-4-[3-(1-carbethoxyoxy-5-methanesulfonamido-4-naphthylazo)phenylsulfonamido]-N-[4-(2,4-di-tert-amylphenoxy)butyl]-2-naphthamide, (d) 1-hydroxy-3-methyl-4-[3-(1-hydroxy-5-methanesulfonamido-4 -naphthylazo)phenylsulfonamido]-N-didodecyl-2-naphthamide, (e) 1-hydroxy-3-methyl-4-[4-(1-hydroxy-2-(N-tert-butylsulfamoyl)-5-methanesulfonamido-4-naphthylazo)phenylsulfonamido]-4-[4-(2,4-di-tert-amylphenoxy)butyl]-2-naphthamide, (f) 1-hydroxy-3-phenyl-4-[4-(1-hydroxy-2-N-tert-butylsulfamoyl-5-methanesulfonamido-4-naphthylazo)phenylsulfonamido]-N-didodecyl-2-naphthamide, or (g) 1-hydroxy-2-propyl-3-phenyl-4-[4(3-chloro-4-hydroxyphenylazo)benzenesulfonamido]-7-[2,4-di-tert-amylphenoxyacetyl]naphthamide.

Claim 6

In a photographic film unit comprising: (a) a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one sulfonamido redox releaser; (b) an image receiving layer; and (c) an alkaline processing composition; said film unit comprising a silver halide developing agent, the improvement wherein said sulfonamido redox releaser has the formula: ##STR40## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 7

In a photographic film unit comprising: (a) a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one sulfonamido redox releaser; (b) an image receiving layer; and (c) an alkaline processing composition; said film unit comprising a silver halide developing agent, the improvement wherein said sulfonamido redox releaser has the formula: ##STR40## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 8

The film unit of claim 5 wherein PUG represents a dye or a dye precursor.

Claim 9

The film unit of claim 5 wherein R 2 represents an alkyl group having from 1 to 6 carbon atoms or a phenyl group.

Claim 10

The film unit of claim 5 wherein said redox dye releaser is: (a) 3,4,6-trimethyl-5-[2-(1-hydroxy-5-methanesulfonamido-4-naphthylazo)-benzenesulfonamido]-N,N-didodecylsalicylamide, (b) 3,4,6-trimethyl-5-[4-(4-hydroxy-3-chlorophenylazo)-benzenesulfonamido]-N,N-didodecylsalicylamide, (c) 1-hydroxy-3-methyl-4-[3-(1-carbethoxyoxy-5-methanesulfonamido-4-naphthylazo)phenylsulfonamido]-N-[4-(2,4-di-tert-amylphenoxy)butyl]-2-naphthamide, (d) 1-hydroxy-3-methyl-4-[3-(1-hydroxy-5-methanesulfonamido-4-naphthylazo)phenylsulfonamido]-N-didodecyl-2-naphthamide, (e) 1-hydroxy-3-methyl-4-[4-(1-hydroxy-2-(N-tert-butylsulfamoyl)-5-methanesulfonamido-4-naphthylazo)phenylsulfonamido]-4-[4-(2,4-di-tert-amylphenoxy)butyl]-2-naphthamide, (f) 1-hydroxy-3-phenyl-4-[4-(1-hydroxy-2-N-tert-butylsulfamoyl-5-methanesulfonamido-4-naphthylazo)phenylsulfonamido]-N-didodecyl-2-naphthamide, or (g) 1-hydroxy-2-propyl-3-phenyl-4-[4(3-chloro-4-hydroxyphenylazo)benzenesulfonamido]-7-[2,3-di-tert-amylphenoxyacetyl]naphthamide.

Claim 11

In a photographic film unit comprising: (a) a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a sulfonamido redox releaser; (b) an image receiving layer; (c) an alkaline processing composition and means for discharging same within said film unit in contact with said photosensitive layer; (d) a neutralizing layer for neutralizing said alkaline processing composition; and (e) a barrier which is permeable by said alkaline processing composition after a predetermined time located between said neutralizing layer and said photosensitive silver halide emulsion; said film unit containing a silver halide developing agent, the improvement wherein said sulfonamido redox releaser has the formula: ##STR41## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 12

In a photographic film unit comprising: (a) a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a sulfonamido redox releaser; (b) an image receiving layer; (c) an alkaline processing composition and means for discharging same within said film unit in contact with said photosensitive layer; (d) a neutralizing layer for neutralizing said alkaline processing composition; and (e) a barrier which is permeable by said alkaline processing composition after a predetermined time located between said neutralizing layer and said photosensitive silver halide emulsion; said film unit containing a silver halide developing agent, the improvement wherein said sulfonamido redox releaser has the formula: ##STR41## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 13

The film unit of claim 9 wherein PUG represents a dye or a dye precursor.

Claim 14

The film unit of claim 9 wherein R 2 represents an alkyl group having from 1 to 6 carbon atoms, or a phenyl group.

Claim 15

The film unit of claim 9 comprising: (a) a photosensitive element comprising a support having thereon the following layers in sequence: an image-receiving layer; an alkaline solution-permeable, light-reflective layer; an alkaline solution-permeable opaque layer; a red-sensitive silver halide emulsion layer having a ballasted redox cyan dye-releaser associated therewith; a green-sensitive silver halide emulsion having a ballasted redox magenta dye-releaser associated therewith and a blue-sensitive silver halide emulsion layer having a ballasted redox yellow dye-releaser associated therewith; (b) a cover sheet superposed over said blue-sensitive silver halide emulsion layer and comprising a support coated with said neutralizing layer and said barrier layers; and (c) a rupturable container containing an alkaline processing composition, said container being so positioned during processing of said film unit that a compressive force supplied to said container will effect a discharge of the container's contents between said cover sheet and said blue-sensitive silver halide emulsion layer.

Claim 16

In a photographic film unit comprising: (a) a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one sulfonamido redox releaser compound; (b) an image-receiving layer; (c) an alkaline processing composition and means for discharging same within said film unit in contact with said photosensitive layer; (d) a neutralizing layer for neutralizing said alkaline processing composition; (e) a barrier which is permeable by said alkaline processing composition after a predetermined time located between said neutralizing layer and said photosensitive silver halide emulsion; and (f) a means for bleaching and fixing said photosensitive silver halide emulsion layer; said film unit containing a silver halide developing agent, the improvement wherein said sulfonamido redox releaser compound has the formula: ##STR42## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 17

In a photographic film unit comprising: (a) a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one sulfonamido redox releaser compound; (b) an image-receiving layer; (c) an alkaline processing composition and means for discharging same within said film unit in contact with said photosensitive layer; (d) a neutralizing layer for neutralizing said alkaline processing composition; (e) a barrier which is permeable by said alkaline processing composition after a predetermined time located between said neutralizing layer and said photosensitive silver halide emulsion; and (f) a means for bleaching and fixing said photosensitive silver halide emulsion layer; said film unit containing a silver halide developing agent, the improvement wherein said sulfonamido redox releaser compound has the formula: ##STR42## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 18

The film unit of claim 13 wherein PUG represents a dye or a dye precursor.

Claim 19

The film unit of claim 13 wherein R 2 represents an alkyl group having from 1 to 6 carbon atoms, or a phenyl group.

Claim 20

The film unit of claim 13 comprising: (a) photosensitive element comprising a support having thereon the following layers in sequence: an image-receiving layer; an alkaline solution-permeable, light-reflective layer; an alkaline solution-permeable opaque layer; a red-sensitive silver halide emulsion layer having a ballasted redox cyan dye-releaser associated therewith; a green-sensitive silver halide emulsion having a ballasted redox magenta dye-releaser associated therewith and a blue-sensitive silver halide emulsion layer having a ballasted redox yellow dye-releaser associated therewith; (b) a cover sheet superposed over said blue-sensitive silver halide emulsion layer and comprising a support coated with said neutralizing layer and said barrier layers, said cover sheet further comprising means for bleaching and fixing said photosensitive element; and (c) a rupturable container containing an alkaline processing composition, said container being so positioned during processing of said film unit that a compressive force supplied to said container will effect a discharge of the container's contents between said cover sheet and said blue-sensitive silver halide emulsion layer.

Claim 21

In a process of producing a photographic transfer image in an imagewise-exposed photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a sulfonamido redox releaser compound, a receiving layer, a barrier layer associated with a neutralizing layer being permeable by said alkaline processing composition after a predetermined time, and which is located between said photosensitive silver halide emulsion layer and said neutralizing layer, said process comprising: (a) contacting said element with an alkaline processing composition in the presence of a silver halide developing agent to effect development of each of said exposed silver halide emulsion layers; (i) an imagewise distribution of dye image-providing material being formed as a function of development; and (ii) at least a portion of said imagewise distribution of said dye image-providing material diffusing to said dye image-receiving layer; and (b) neutralizing said alkaline processing composition by means of said neutralizing layer associated with said photographic element after said predetermined time; the improvement wherein said sulfonamido redox releaser has the formula: ##STR43## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUB represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 22

In a process of producing a photographic transfer image in an imagewise-exposed photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a sulfonamido redox releaser compound, a receiving layer, a barrier layer associated with a neutralizing layer being permeable by said alkaline processing composition after a predetermined time, and which is located between said photosensitive silver halide emulsion layer and said neutralizing layer, said process comprising: (a) contacting said element with an alkaline processing composition in the presence of a silver halide developing agent to effect development of each of said exposed silver halide emulsion layers; (i) an imagewise distribution of dye image-providing material being formed as a function of development; and (ii) at least a portion of said imagewise distribution of said dye image-providing material diffusing to said dye image-receiving layer; and (b) neutralizing said alkaline processing composition by means of said neutralizing layer associated with said photographic element after said predetermined time; the improvement wherein said sulfonamido redox releaser has the formula: ##STR43## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUB represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 23

The process of claim 17 wherein PUG represents a dye or a dye precursor.

Claim 24

The process of claim 17 wherein R 2 represents an alkyl group having from 1 to 6 carbon atoms, or a phenyl group.

Claim 25

A process for retaining a photographic image in a color diffusion transfer unit comprising: (i) imagewise exposing a photosensitive element comprising a transparent support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one redox releaser, wherein each said redox releaser is a nondiffusible sulfamido compound which is alkyl-cleavable upon oxidation to release a photographically useful group, and (ii) contacting said photosensitive element with an alkaline processing composition in the presence of a silver halide developing agent, whereby at least a portion of said redox releaser is imagewise eliminated by diffusion in a solution or by mordanting on a strippable support, thus forming in the retained product an image corresponding to the photographically useful group remaining in the unit, the improvement wherein said sulfonamido redox releaser has the formula: ##STR44## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 26

A process for retaining a photographic image in a color diffusion transfer unit comprising: (i) imagewise exposing a photosensitive element comprising a transparent support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one redox releaser, wherein each said redox releaser is a nondiffusible sulfamido compound which is alkyl-cleavable upon oxidation to release a photographically useful group, and (ii) contacting said photosensitive element with an alkaline processing composition in the presence of a silver halide developing agent, whereby at least a portion of said redox releaser is imagewise eliminated by diffusion in a solution or by mordanting on a strippable support, thus forming in the retained product an image corresponding to the photographically useful group remaining in the unit, the improvement wherein said sulfonamido redox releaser has the formula: ##STR44## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 27

The process of claim 20 wherein PUG represents a dye or a dye precursor.

Claim 28

The process of claim 20 wherein said alkaline processing solution has a pH value in the range of from 10.0 to 14.0.

Claim 29

The process of claim 20 wherein R 2 represents an alkyl group having from 1 to 6 carbon atoms or a phenyl group.

Claim 30

The process of claim 20 wherein said sulfonamido redox releaser is: (a) 3,4,6-trimethyl-5-[3-(1-hydroxy-5-methanesulfonamido-4-naphthylazo)-benzenesulfonamido]-N,N-didodecylsalicylamide, (b) 3,4,6-trimethyl-5-[4-(4-hydroxy-3-chlorophenylazo)-benzenesulfonamido]-N,N-didodecylsalicylamide, (c) 1-hydroxy-3-methyl-4-[3-(1-carbethoxyoxy-5-methanesulfonamido-4-naphthylazo)phenylsulfonamido]-N-[4-(2,4-di-tert-amylphenoxy)butyl]-2-naphthamide, (d) 1-hydroxy-3-methyl-4-[3-(1-hydroxy-5-methanesulfonamido-4-naphthylazo)phenylsulfonamido]-N-didodecyl-2-naphthamide, (e) 1-hydroxy-3-methyl-4-[4-(1-hydroxy-2-(N-tert-butylsulfamoyl)-5-methanesulfonamido-4-naphthylazo)phenylsulfonamido]-4-[4-(2,4-di-tert-amylphenoxy)butyl]-naphthamide, (f) 1-hydroxy-3-phenyl-4-[4-(1-hydroxy-2-N-tert-butylsulfamoyl-5-methanesulfonamido-4-naphthylazo)phenylsulfonamido]-N-didodecyl-2-naphthamide, or (g) 1-hydroxy-2-propyl-3-phenyl-4-[4(3-chloro-4-hydroxyphenylazo)benzenesulfonamido]-7-[2,4-di-tert-amylphenoxyacetyl]naphthamide.

Claim 31

A process for retaining a photographic image in a color diffusion transfer unit comprising contacting an imagewise-exposed photosensitive element, comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one redox releaser, with an alkaline processing composition in the presence of a silver halide developing agent, whereby at least a portion of said redox releaser is imagewise eliminated by diffusion in a solution or by mordanting on a strippable support, thus forming in the retained product an image corresponding to the photographically useful group remaining in the unit, the improvement wherein said redox releaser has the formula: ##STR45## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 32

A process for retaining a photographic image in a color diffusion transfer unit comprising contacting an imagewise-exposed photosensitive element, comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one redox releaser, with an alkaline processing composition in the presence of a silver halide developing agent, whereby at least a portion of said redox releaser is imagewise eliminated by diffusion in a solution or by mordanting on a strippable support, thus forming in the retained product an image corresponding to the photographically useful group remaining in the unit, the improvement wherein said redox releaser has the formula: ##STR45## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 33

A process for retaining a photographic image in a color diffusion transfer unit comprising: (i) imagewise exposing a photosensitive element comprising a transparent support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one redox releaser, wherein each said redox releaser is a nondiffusible sulfonamido compound which is alkali-cleavable upon oxidation to release a photographically useful group; (ii) contacting said photosensitive element with an alkaline processing composition in the presence of a silver halide developing agent, whereby at least a portion of said redox releaser is imagewise eliminated by diffusion in a solution or by mordanting on a strippable support, thus forming in the retained product an image corresponding to the photographically useful group remaining in the unit; and (iii) further contacting said photosensitive element with a bleaching and fixing bath, whereby developed silver and retained undeveloped silver halide are removed; the improvement wherein said sulfonamido redox releaser has the formula: ##STR46## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 34

A process for retaining a photographic image in a color diffusion transfer unit comprising: (i) imagewise exposing a photosensitive element comprising a transparent support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one redox releaser, wherein each said redox releaser is a nondiffusible sulfonamido compound which is alkali-cleavable upon oxidation to release a photographically useful group; (ii) contacting said photosensitive element with an alkaline processing composition in the presence of a silver halide developing agent, whereby at least a portion of said redox releaser is imagewise eliminated by diffusion in a solution or by mordanting on a strippable support, thus forming in the retained product an image corresponding to the photographically useful group remaining in the unit; and (iii) further contacting said photosensitive element with a bleaching and fixing bath, whereby developed silver and retained undeveloped silver halide are removed; the improvement wherein said sulfonamido redox releaser has the formula: ##STR46## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 35

The process of claim 26 wherein PUG represents a dye or a dye precursor.

Claim 36

The process of claim 26 wherein said alkaline processing solution has a pH value in the range of from 10.0 to 14.0.

Claim 37

A process for retaining a photographic image in a color diffusion transfer unit comprising: (i) imagewise exposing a photosensitive element comprising a transparent support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one redox releaser, wherein each said redox releaser is a nondiffusible sulfonamido compound which is alkali-cleavable upon oxidation to release a photographically useful group; (ii) contacting said photosensitive element with an alkaline processing composition in the presence of a silver halide developing agent, whereby at least a portion of said redox releaser is imagewise eliminated by diffusion in a solution or by mordanting on a strippable support, thus forming in the retained product an image corresponding to the photographically useful group remaining in the unit; and (iii) further contacting said photosensitive element with a cover sheet comprising means for bleaching and fixing, whereby developed silver and retained undeveloped silver halide are removed; the improvement wherein said sulfonamido redox releaser has the formula: ##STR47## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.

Claim 38

A process for retaining a photographic image in a color diffusion transfer unit comprising: (i) imagewise exposing a photosensitive element comprising a transparent support having thereon at least one photosensitive silver halide emulsion layer having associated therewith at least one redox releaser, wherein each said redox releaser is a nondiffusible sulfonamido compound which is alkali-cleavable upon oxidation to release a photographically useful group; (ii) contacting said photosensitive element with an alkaline processing composition in the presence of a silver halide developing agent, whereby at least a portion of said redox releaser is imagewise eliminated by diffusion in a solution or by mordanting on a strippable support, thus forming in the retained product an image corresponding to the photographically useful group remaining in the unit; and (iii) further contacting said photosensitive element with a cover sheet comprising means for bleaching and fixing, whereby developed silver and retained undeveloped silver halide are removed; the improvement wherein said sulfonamido redox releaser has the formula: ##STR47## wherein: (a) R 1 is alkyl, aryl, sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido; (b) R 2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms; (c) R 3 and R 4 are independently alkyl, or aryl, or R 3 and R 4 , taken together, form a fused substituted or unsubstituted carbocyclic or heterocyclic ring; (d) NHSO 2 PUG represents a sulfonamido group; (e) PUG represents a photographically useful group; and (f) at least one of R 1 , R 2 , R 3 or R 4 , or any combination thereof, provides a molecular configuration of such size or shape as to render the compound nondiffusible under alkaline processing conditions.