Patent US4886736A successfully refreshed from Google Patents.
US4886736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide color photographic material
Assignee: Fujifilm Holdings Corp
•
Filing: 1987-06-12
•
Granted: 1989-12-12
•
Expires: 2007-06-12
Abstract
Abstract A silver halide color photographic material comprising (1) at least one coupler and (2) at least one compound represented by formula (I) ##STR1## wherein EAG represents a group capable of accepting an electron from a reducing substance; R 1 and R 2 each represents a chemical bond or a divalent substituent, or R 1 and R 2 are linked together to form a cyclic structure when linked with (Time) t PUG; or R 1 and R 2 each represents a substituent, or R 1 and R 2 are linked together to form a cyclic structure when not linked with (Time) t PUG; Time represents a group capable of releasing PUG, which is released by the cleavage of the single bond between the oxygen atom and the nitrogen atom in the compound; t represents 0 or 1; PUG represents a photographically useful group; and the dotted lines mean that at least one of them forms a chemical bond, and a method for forming an image using the material.
Inventors
- 👤 Koki Nakamura
- 👤 Kei Sakanoue
- 👤 Seiji Ichijima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:22
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/159
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
233 words
A silver halide color photographic material comprising (1) at least one coupler and (2) at least one compound represented by formula (I) ##STR84## wherein EAG represents a group capable of accepting an electron from a reducing substance; R 1 and R 2 each represents a chemical bond or a divalent substituent, or R 1 and R 2 each represents a substituent other than a hydrogen atom, and when R 1 or R 2 is bonded to --Time-- t PUG, R 1 or R 2 is a single bond or a divalent substituent, and R 1 and R 2 may be bonded to each other to form a cyclic structure; Time represents a group capable of releasing PUG which is released by the cleavage of a single bond between the oxygen atom and the nitrogen atom in the compound; t represents 0 or 1; PUG represents a dye moiety which masks to correct subabsorption of a dye formed from said coupler, wherein said dye moiety is temporarily shifted to a short wavelength; the dotted lines mean that at least one of them forms a chemical bond and wherein the release of PUG is triggered by the cleavage of the N--O single bond which occurs when EAG accepts an electron, and wherein the shifted dye moiety is non-diffusible and after being temporarily shifted to a shorter wavelength is shifted to a longer wavelength after release.
Claim 2
Dependent Claim
233 words
A silver halide color photographic material comprising (1) at least one coupler and (2) at least one compound represented by formula (I) ##STR84## wherein EAG represents a group capable of accepting an electron from a reducing substance; R 1 and R 2 each represents a chemical bond or a divalent substituent, or R 1 and R 2 each represents a substituent other than a hydrogen atom, and when R 1 or R 2 is bonded to --Time-- t PUG, R 1 or R 2 is a single bond or a divalent substituent, and R 1 and R 2 may be bonded to each other to form a cyclic structure; Time represents a group capable of releasing PUG which is released by the cleavage of a single bond between the oxygen atom and the nitrogen atom in the compound; t represents 0 or 1; PUG represents a dye moiety which masks to correct subabsorption of a dye formed from said coupler, wherein said dye moiety is temporarily shifted to a short wavelength; the dotted lines mean that at least one of them forms a chemical bond and wherein the release of PUG is triggered by the cleavage of the N--O single bond which occurs when EAG accepts an electron, and wherein the shifted dye moiety is non-diffusible and after being temporarily shifted to a shorter wavelength is shifted to a longer wavelength after release.
Claim 3
Dependent Claim
122 words
A silver halide color photographic material as in claim 1, wherein said compound is represented by formula (II) ##STR85## wherein R 3 represents an atomic group which is required for forming a 3-membered to 8-membered single or condensed heterocyclic ring, which is linked with the nitrogen atom and the oxygen atom in the compound; EAG represents a group capable of accepting an electron from a reducing substance; Time represents a group capable of releasing PUG, which is released by the cleavage of the single bond between the oxygen atom and the nitrogen atom in the compound; t represents 0 or 1; PUG represents a photographically useful group; and the dotted lines mean that at least one of them forms a chemical bond.
Claim 4
Dependent Claim
221 words
A silver halide color photographic material as in claim 1, wherein said compound represented by formula (I) is selected from compounds represented by formula (III): ##STR86## wherein R 4 and R 5 each represents a chemical bond, a hydrogen atom, or a divalent substituent, or R 4 and R 5 each represents a substituent other than a hydrogen atom, and when R 4 or R 5 is bonded to --Time-- t --PUG, R 4 or R 5 is a single bond or a divalent substituent, and R 1 and R 2 may be bonded to each other to form a cyclic structure; X represents a divalent linking group; EAG represents a group capable of accepting an electron from a reducing substance; Time represents a group capable of releasing PUG, which is released by the cleavage of the single bond between the oxygen atom and the nitrogen atom in the compound; t represents 0 or 1; PUG represents a dye moiety which masks to correct subabsorption of a dye formed from said coupler, wherein said dye moiety is temporarily shifted to a short wavelength; and the dotted lines mean that at least one of them forms a chemical bond and wherein the release of PUG is triggered by the cleavage of the N--O single bond which occurs when EAG accepts an electron.
Claim 5
Dependent Claim
28 words
A silver halide color photographic material as in claim 1, wherein said coupler is at least one of a yellow coupler, a magenta coupler, and a cyan coupler.
Claim 6
Dependent Claim
38 words
A silver halide color photographic material as in claim 1 comprising a combination of a magenta coupler and a compound represented by formula (I) having PUG representing a yellow dye moiety which is temporarily shifted to short wavelength.
Claim 7
Dependent Claim
38 words
A silver halide color photographic material as in claim 1 comprising a combination of a cyan coupler and a compound represented by formula (I) having PUG representing a magenta dye moiety which is temporarily shifted to short wavelength.
Claim 8
Dependent Claim
32 words
A silver halide color photographic material as in claim 1, wherein said compound represented by formula (I) is added in an amount of from 1×10 -7 to 1×10 -1 mol/m 2 .
Claim 9
Dependent Claim
32 words
A silver halide color photographic material as in claim 7, wherein said compound represented by formula (I) is added in an amount of from 1×10 -6 to 1×10 -3 mol/m 2 .
Claim 10
Dependent Claim
28 words
A silver halide color photographic material as in claim 1, wherein said coupler is employed in an amount of from 1×10 -7 to 1×10 -1 mol/m 2 .
Claim 11
Dependent Claim
28 words
A silver halide color photographic material as in claim 9, wherein said coupler is employed in an amount of from 1×10 -6 to 1×10 -3 mol/m 2 .
Claim 12
Dependent Claim
248 words
A silver halide color photographic material as in claim 1, wherein said material further comprises a reducing substance represented by formula (C): Q.sub.1 --V.sub.n --Q.sub.2 (C) wherein Q 1 and Q 2 each represents --O-Sub, ##STR87## or --S-Sub; Sub represents a chemical bond (π-bond) or a substituent; n represents an integer of from 0 to 8; V 1 represents --α 1 --β 1 --; V 2 represents --α 1 --β 1 )(α 2 --β 2 --; V 3 represents --α 1 --β 1 )(α 2 --β 2 )(α 3 --β 3 --; V 4 represents --α 1 --β 1 )(α 2 --β 2 )(α 3 --β 3 )(α 4 --β 4 --; V 5 represents --α 1 --β 1 )(α 2 --β 2 )(α 3 --β 3 )(α 4 --β 4 )(α 5 --β 5 --; V 6 represents (α 1 --β 1 )(α 2 --β 2 )(α 3 --β 3 )(α 4 --β.sub. 4)(α 5 --β 5 )(α 6 --β 6 ); V 7 represents (α 1 --β 1 )(α 2 --β 2 )(α 3 --β 3 )(α 4 --β 4 )(α 5 --β 5 )(α 6 --β 6 )(α 7 --β 7 ); and V 8 represents (α 1 --β 1 )(α 2 --β 2 )(α 3 --β 3 )(α 4 --β 4 )(α 5 --β 5 )(α 6 --β 6 ) (α 7 --β 7 )(α 8 --β 8 ); wherein α 1 through α 8 and β 1 through β 8 each represents ##STR88##
Claim 13
Dependent Claim
45 words
A silver halide color photographic material as in claim 11, wherein said reducing substance is selected from compounds represented by formulae (C-1) to (C-13): ##STR89## wherein Q 1 , Q 2 , and Sub each has the same meaning for formula (C) in claim 11.
Claim 14
Independent Claim
241 words
A method for forming an image comprising imagewise exposing to light and then processing a silver halide color photographic material with a developing solution containing a paraphenylenediamine as a developing agent, said material comprising a color coupler and (1) at least one compound represented by formula (I) ##STR90## wherein EAG represents a group capable of accepting an electron from a reducing substance; R 1 and R 2 each represents a substituent other than a hydrogen atom, and when R 1 and R 2 is bonded to --(Time) t --PUG, R 1 or R 2 is a single bond or divalent substituent, and R 1 and R 2 may be bonded to each other to form a cyclic structure; Time represents a group capable of releasing PUG, which is released by the cleavage of the single bond between the oxygen atom and the nitrogen atom in the compound; t represents 0 or 1; PUG represents a dye moiety which masks to correct subabsorption of a dye formed from said coupler, wherein said dye moiety is temporarily shifted to a short wavelength; the dotted lines mean that at least one of them forms a chemical bond, wherein the release of PUG is triggered by the cleavage of the N--O single bond which occurs when EAG accepts an electron, and wherein the shifted dye moiety is non-diffusible and after being temporarily shifted to a shorter wavelength is shifted to a longer wavelength after release.
Claim 15
Independent Claim
241 words
A method for forming an image comprising imagewise exposing to light and then processing a silver halide color photographic material with a developing solution containing a paraphenylenediamine as a developing agent, said material comprising a color coupler and (1) at least one compound represented by formula (I) ##STR90## wherein EAG represents a group capable of accepting an electron from a reducing substance; R 1 and R 2 each represents a substituent other than a hydrogen atom, and when R 1 and R 2 is bonded to --(Time) t --PUG, R 1 or R 2 is a single bond or divalent substituent, and R 1 and R 2 may be bonded to each other to form a cyclic structure; Time represents a group capable of releasing PUG, which is released by the cleavage of the single bond between the oxygen atom and the nitrogen atom in the compound; t represents 0 or 1; PUG represents a dye moiety which masks to correct subabsorption of a dye formed from said coupler, wherein said dye moiety is temporarily shifted to a short wavelength; the dotted lines mean that at least one of them forms a chemical bond, wherein the release of PUG is triggered by the cleavage of the N--O single bond which occurs when EAG accepts an electron, and wherein the shifted dye moiety is non-diffusible and after being temporarily shifted to a shorter wavelength is shifted to a longer wavelength after release.
Claim 16
Dependent Claim
61 words
A method for forming an image as in claim 13, wherein said material further comprises a reducing agent immobilized by the introduction of a ballast group, said reducing agent is selected from compounds represented by formulae (C-1) to (C-13) ##STR91## wherein Q 1 and Q 2 each represents --O-Sub, ##STR92## or --S-Sub; Sub represents a chemical bond (π-bond) or a substituent.
Claim 17
Dependent Claim
217 words
A silver halide color photographic material comprising (1) at least one coupler and (2) at least one compound represented by formula (I) ##STR93## wherein EAG represents a group capable of accepting an electron from a reducing substance; R 1 and R 2 each represents a chemical bond or a divalent substituent, or R 1 and R 2 each represents a substituent other than a hydrogen atom, and when R 1 or R 2 is bonded to --Time-- t --PUG, R 1 or R 2 is a single bond or a divalent substituent, and R 1 and R 2 may be bonded to each other to form a cyclic structure; Time represents a group capable of releasing PUG which is released by the cleavage of the single bond between the oxygen atom and the nitrogen atom in the compound; t represents 0 or 1; PUG represents a dye moiety which masks to correct subabsorption of a dye formed from said coupler, wherein said dye moiety is a ligand capable of forming a dye upon a complex-forming reaction with a metal ion; the dotted lines mean that at least one of them forms a chemical bond and wherein the release of PUG is triggered by the cleavage of the N--O single bond which occurs when EAG accepts an electron.
Claim 18
Dependent Claim
217 words
A silver halide color photographic material comprising (1) at least one coupler and (2) at least one compound represented by formula (I) ##STR93## wherein EAG represents a group capable of accepting an electron from a reducing substance; R 1 and R 2 each represents a chemical bond or a divalent substituent, or R 1 and R 2 each represents a substituent other than a hydrogen atom, and when R 1 or R 2 is bonded to --Time-- t --PUG, R 1 or R 2 is a single bond or a divalent substituent, and R 1 and R 2 may be bonded to each other to form a cyclic structure; Time represents a group capable of releasing PUG which is released by the cleavage of the single bond between the oxygen atom and the nitrogen atom in the compound; t represents 0 or 1; PUG represents a dye moiety which masks to correct subabsorption of a dye formed from said coupler, wherein said dye moiety is a ligand capable of forming a dye upon a complex-forming reaction with a metal ion; the dotted lines mean that at least one of them forms a chemical bond and wherein the release of PUG is triggered by the cleavage of the N--O single bond which occurs when EAG accepts an electron.
Claim 19
Independent Claim
225 words
A method for forming an image comprising imagewise exposing to light and then processing a silver halide color photographic material with a developing solution containing a paraphenylenediamine as a developing agent, said material comprising a color coupler and (1) at least one compound represented by formula (I) ##STR94## wherein EAG represents a group capable of accepting an electron from a reducing substance; R 1 and R 2 each represents a substituent other than a hydrogen atom, and when R 1 and R 2 is bonded to --(Time) t --PUG, R 1 or R 2 is a single bond or divalent substituent, and R 1 and R 2 may be bonded to each other to form a cyclic structure; Time represents a group capable of releasing PUG, which is released by the cleavage of the single bond between the oxygen atom and the nitrogen atom in the compound; t represents 0 or 1; PUG represents a dye moiety which masks to correct subabsorption of a dye formed from said coupler, wherein said dye moiety is a ligand capable of forming a dye upon a complex-forming reaction with a metal ion; the dotted lines mean that at least one of them forms a chemical bond, wherein the release of PUG is triggered by the cleavage of the N--O single bond which occurs when EAG accepts an electron.
Claim 20
Independent Claim
225 words
A method for forming an image comprising imagewise exposing to light and then processing a silver halide color photographic material with a developing solution containing a paraphenylenediamine as a developing agent, said material comprising a color coupler and (1) at least one compound represented by formula (I) ##STR94## wherein EAG represents a group capable of accepting an electron from a reducing substance; R 1 and R 2 each represents a substituent other than a hydrogen atom, and when R 1 and R 2 is bonded to --(Time) t --PUG, R 1 or R 2 is a single bond or divalent substituent, and R 1 and R 2 may be bonded to each other to form a cyclic structure; Time represents a group capable of releasing PUG, which is released by the cleavage of the single bond between the oxygen atom and the nitrogen atom in the compound; t represents 0 or 1; PUG represents a dye moiety which masks to correct subabsorption of a dye formed from said coupler, wherein said dye moiety is a ligand capable of forming a dye upon a complex-forming reaction with a metal ion; the dotted lines mean that at least one of them forms a chemical bond, wherein the release of PUG is triggered by the cleavage of the N--O single bond which occurs when EAG accepts an electron.
References Cited (Backward Citations)
US3980479A
Cited
US4199355A
Cited
US4139379A
Cited
US4248962A
Cited
US4711837A
Cited
US4555477A
Cited
US4783396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-11 | 1993-06-12 | 1993-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-11 | 1997-06-12 | 1997-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-11 | 2001-06-12 | 2001-12-12 | $7700.00 | Window Closed / Lapsed |