US5049474A
Expired / Lapsed
US
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Color light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1988-05-20
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Granted: 1991-09-17
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Expires: 2008-05-20
Abstract
Abstract A novel color light-sensitive material is provided, which comprises a support having theron at least a light-sensitive silver halide, an image-forming coupler, and a compound represented by formula (I): PWR--Time).sub.t Z [I] wherein PWR represents a group which undergoes reduction to release --Time) t Z; Time represents a group which releases Z through a reaction after being released as --Time) t Z; t represents an integer of 0 or 1; and Z represents a group which becomes a slightly mobile dye or a precursor thereof after being released from --Time) t Z.
Inventors
- 👤 Seiji Ichijima
- 👤 Kei Sakanoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:04
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30541; G03C7/30547; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/159
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
206 words
A color light-sensitive material, which comprises a support having thereon at least a light-sensitive silver halide, an image-forming coupler, and a compound represented by formula (II): ##STR34## wherein X represents an oxygen atom, a sulfur atom or a nitrogen-containing group of formula --N(R 3 )--; R 1 , R 2 and R 3 each represents a mere bond or a group other than a hydrogen atom; EAG represents an electron accepting group; or R 1 , R 2 , R 3 and EAG are connected to each other to form a ring; Time represents a group capable of releasing Z upon cleavage of the N--X bond through a reaction subsequent to the release from the rest of the compound in the form of (Time) t Z; the dotted lines represent possible bonds, provided that at least one dotted line is a bond; t represents an integer of 0 or 1; and Z represents a group which becomes a slightly mobile dye or a precursor thereof for forming an unsharp mask after being released from (Time) t Z wherein said dye released from the compound represented by formula (II) has a maximum absorption wavelength of the same series color as the dye formed by said color coupler.
Claim 2
Dependent Claim
206 words
A color light-sensitive material, which comprises a support having thereon at least a light-sensitive silver halide, an image-forming coupler, and a compound represented by formula (II): ##STR34## wherein X represents an oxygen atom, a sulfur atom or a nitrogen-containing group of formula --N(R 3 )--; R 1 , R 2 and R 3 each represents a mere bond or a group other than a hydrogen atom; EAG represents an electron accepting group; or R 1 , R 2 , R 3 and EAG are connected to each other to form a ring; Time represents a group capable of releasing Z upon cleavage of the N--X bond through a reaction subsequent to the release from the rest of the compound in the form of (Time) t Z; the dotted lines represent possible bonds, provided that at least one dotted line is a bond; t represents an integer of 0 or 1; and Z represents a group which becomes a slightly mobile dye or a precursor thereof for forming an unsharp mask after being released from (Time) t Z wherein said dye released from the compound represented by formula (II) has a maximum absorption wavelength of the same series color as the dye formed by said color coupler.
Claim 3
Dependent Claim
72 words
The color light-sensitive material as claimed in claim 1, wherein the compound represented by formula (II) is represented by formula (III): ##STR35## wherein Y represents a divalent linking group; R 4 represents an atom group forming a 5- to 8- membered nitrogen-containing monocyclic or condensed heterocyclic ring together with X and Y; PUG represents a photographically useful group; X, t, EAG, Time, and the dotted lines are as defined in claim 1.
Claim 4
Dependent Claim
40 words
The color light-sensitive material as claimed in claim 1, wherein the compound represented by formula (II) contains a cyan dye as Z which has been temporarily shifted to a shorter wavelength and is used in combination with a cyan coupler.
Claim 5
Dependent Claim
40 words
The color light-sensitive material as claimed in claim 1, wherein the compound represented by formula (II) contains a magenta dye as Z which has been temporarily shifted to a shorter wavelength and is used in combination with a magenta coupler.
Claim 6
Dependent Claim
40 words
The color light-sensitive material as claimed in claim 1, wherein the compound represented by formula (II) contains a yellow dye as Z which has been temporarily shifted to a shorter wavelength and is used in combination with a yellow coupler.
Claim 7
Dependent Claim
50 words
The color light-sensitive material as claimed in claim 1, wherein Z in formula (II) is a colored coupler for forming an azomethine dye which does not substantially form a color or is eluted into a developing solution, upon reaction with an oxidation product of a developing agent after being cleaved.
Claim 8
Dependent Claim
17 words
The color light-sensitive material as claimed in claim 1, wherein said image-forming coupler is a non-diffusible coupler.
Claim 9
Dependent Claim
23 words
The color light-sensitive material as claimed in claim 1, wherein said image-forming coupler is an acylacetamide type coupler or a malondiamide type coupler.
Claim 10
Dependent Claim
26 words
The color light-sensitive material as claimed in claim 1, wherein said image-forming coupler is a 5-pyrazolone type coupler, pyrazoloimidazole type coupler, or a pyrazolotriazole type coupler.
Claim 11
Dependent Claim
23 words
The color light-sensitive material as claimed in claim 1, wherein said image-forming coupler is a phenol type coupler or a naphthol type coupler.
Claim 12
Dependent Claim
31 words
The color light-sensitive material as claimed in claim 1, wherein the compound represented by formula (II) is used in an amount of from 1×10 -7 to 1×10 -1 mol/m 2 .
Claim 13
Dependent Claim
31 words
The color light-sensitive material as claimed in claim 9, wherein the compound represented by formula (II) is used in an amount of from 1×10 -8 to 1×10 -3 mol/m 2 .
Claim 14
Dependent Claim
310 words
The color light-sensitive material as claimed in claim 1, further comprising a reducing substance represented by formula (C): Q.sub.1 --V.sub.n --Q.sub.2 (C) wherein Q 1 and Q 2 each represent --O--Sub, ##STR36## or --S--Sub in which each Sub which may be the same or different represents a mere bond (π bond), hydrogen atom or substituent, wherein the Sub's may be connected to each other to form a 3- to 8- membered saturated or unsaturated carbon ring or heterocycle; and n represents an integer of 0 to 8 and when n is 0, formula (C) is Q 1 -Q 2 , and V 1 to V 8 represent --α 1 --β 1 --, --α 1 --β 1 )(α 2 --β 2 --, --α 1 --β 1 )(α 2 --β 2 )(α 3 --β 3 --, --α 1 --β 1 )(α 2 --β 2 )(α 3 --β 3 )(α 4 --β 4 --, --α 1 --β 1 )(α 2 --β 2 )(α 3 --β 3 )(α.sub. 4 --β 4 )(α 5 --β 5 --, --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 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 --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 --, respectively, in which α 1 to α 8 and β 1 to β 8 each represents ##STR37## wherein Sub has the same meaning as defined above in formula (C), and wherein Q 1 , Q 2 and V n may be connected to each other to form a heterocyclic group.
Claim 15
Dependent Claim
21 words
The color light-sensitive material as claimed in claim 13, wherein the reducing substance represented by formula (C) contains a ballast group.
References Cited (Backward Citations)
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US4729944A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-16 | 1995-03-18 | 1995-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-16 | 1999-03-18 | 1999-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-16 | 2003-03-18 | 2003-09-17 | $7700.00 | Window Closed / Lapsed |