Patent EP0506567A1 successfully refreshed from Google Patents.
US4741995A
Expired / Lapsed
US
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Silver halide color photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1986-04-28
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Granted: 1988-05-03
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Expires: 2006-04-28
Abstract
Abstract A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains a silver halide emulsion which is spectrally sensitized by adding a spectral sensitizing dye prior to the completion of formation of silver halide particles and at least one kind of pyrazoloazole type magenta coupler represented by the following general formula (I): ##STR1## wherein R 1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group capable of being released upon a coupling reaction with an oxidation product of an aromatic primary amine developing agent; Za, Zb and Zc each represents a methine group, a substituted methine group, ═N-- or --NH--, one of the Za--Zb bond and the Zb--Zc bond being a double bond and the other being a single bond, and when the Zb--Zc bond is a carbon-carbon double bond, it may form a part of an aromatic ring; R 1 or X may also form a polymer including a dimer or more; and when Za, Zb or Zc is a substituted methine group, the substituted methine group may form a polymer including a dimer or more. The silver halide color photographic light-sensitive material has a good color forming property and excellent stability during production and preservation, and provides color images having improved color reproducibility and image preservability.
Inventors
- 👤 Tadaaki Tani
- 👤 Mikio Ihama
- 👤 Kiyoshi Nakazyo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:17
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/07; G03C7/00; G03C7/30; G03C7/32; G03C7/36; G03C7/38; G03C7/381; G03C7/382; G03C7/3825
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
198 words
A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains a silver halide emulsion which is spectrally sensitized by adding a spectral sensitizing dye prior to the completion of formation of silver halide particles and at least one kind of pyrazoloazole type magenta coupler represented by the following general formula (I): ##STR19## wherein R 1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group capable of being released upon a coupling reaction with an oxidation product of an aromatic primary amine developing agent; Za, Zb and Zc each represents a methine group, a substituted methine group, ═N-- or --NH--, one of the Za--Zb bond and the Zb--Zc bond being a double bond and the other being a single bond, and when the Zb--Zc bond is a carbon-carbon double bond, it may form a part of an aromatic ring; R 1 or X may also form a polymer including a dimer or more; and when Za, Zb or Zc is a substituted methine group, the substituted methine group may form a polymer including a dimer or more.
Claim 2
Dependent Claim
198 words
A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains a silver halide emulsion which is spectrally sensitized by adding a spectral sensitizing dye prior to the completion of formation of silver halide particles and at least one kind of pyrazoloazole type magenta coupler represented by the following general formula (I): ##STR19## wherein R 1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group capable of being released upon a coupling reaction with an oxidation product of an aromatic primary amine developing agent; Za, Zb and Zc each represents a methine group, a substituted methine group, ═N-- or --NH--, one of the Za--Zb bond and the Zb--Zc bond being a double bond and the other being a single bond, and when the Zb--Zc bond is a carbon-carbon double bond, it may form a part of an aromatic ring; R 1 or X may also form a polymer including a dimer or more; and when Za, Zb or Zc is a substituted methine group, the substituted methine group may form a polymer including a dimer or more.
Claim 3
Dependent Claim
28 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the polymer of the pyrazoloazole type coupler is a bis coupler or a polymer coupler.
Claim 4
Dependent Claim
244 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the pyrazoloazole type coupler is represented by the following general formula (II), (III), (IV) or (V): ##STR20## wherein R 11 , R 12 and R 13 , which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a heterocyclic group, a cyano group, an alkoxy group, an aryloxy group, a heterocyclic oxy group, an acyloxy group, a carbamoyloxy group, a silyloxy group, a sulfonyloxy group, an acylamino group, an anilino group, a ureido group, an imido group, a sulfamoylamino group, a carbamoylamino group, an alkylthio group, an arylthio group, a heterocyclic thio group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonamido group, a carbamoyl group, an acyl group, a sulfamoyl group, a sulfonyl group, a sulfinyl group, an alkoxycarbonyl group or an aryloxycarbonyl group which may be bonded through a linking group, or R 12 and R 13 in the general formula (II) or (III) may combine with each other to form a 5-membered, 6-membered or 7-membered ring; X represents a hydrogen atom, a halogen atom, a carboxy group or a group capable of being released upon coupling which is bonded to the carbon atom at the coupling position through an oxygen atom, a nitrogen atom or a sulfur atom; or R 11 , R 12 , R 13 or X is a divalent group to form a bis coupler.
Claim 5
Dependent Claim
52 words
A silver halide color photographic light-sensitive material as claimed in claim 3, wherein the pyrazoloazole type coupler is a polymer coupler in which the coupler moiety derived from the coupler represented by general formula (II), (III), (IV) or (V) is present at the main chain or the side chain of a polymer.
Claim 6
Dependent Claim
89 words
A silver halide color photographic light-sensitive material as claimed in claim 3, wherein the divalent group to form a bis coupler represented by R 11 , R 12 or R 13 is a substituted or unsubstituted alkylene group, a substituted or unsubstituted phenylene group, a group of the formula --NHCO--R 14 --CONH-- group, wherein R 14 represents a substituted or unsubstituted alkylene group or a substituted or unsubstituted phenylene group, or a group of the formula --S--R 14 --S--, wherein R 14 represents a substituted or unsubstituted alkylene group.
Claim 7
Dependent Claim
19 words
A silver halide color photographic light-sensitive material as claimed in claim 4, wherein the polymer coupler is a homopolymer.
Claim 8
Dependent Claim
19 words
A silver halide color photographic light-sensitive material as claimed in claim 4, wherein the polymer coupler is a copolymer.
Claim 9
Dependent Claim
26 words
A silver halide color photographic light-sensitive material as claimed in claim 3, wherein the pyrazoloazole type coupler is represented by the general formula (II) or (IV).
Claim 10
Dependent Claim
50 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein an amount of the pyrazoloazole type coupler represented by the general formula (I) is in a range from 1×10 -3 mol to 5×10 -1 moles per mol of silver halide present in the silver halide emulsion layer.
Claim 11
Dependent Claim
46 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the spectral sensitizing dye is a cyanine dye, a merocyanine dye, a complex cyanine dye, a complex merocyanine dye, a holopolar cyanine dye, a hemicyanine dye, a styryl dye or a hemioxonol dye.
Claim 12
Dependent Claim
29 words
A silver halide color photographic light-sensitive material as claimed in claim 10, wherein the spectral sensitizing dye is a cyanine dye, a merocyanine dye or a complex merocyanine dye.
Claim 13
Dependent Claim
305 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the spectral sensitizing dye is represented by the following general formula (A), (B) or (C): ##STR21## wherein W 1 and W 2 each represents a hydrogen atom or an alkyl group; V 1 , V 2 , V 3 and V 4 , which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an amido group, an alkoxycarbonyl group, a cyano group, or a condensed benzene ring; V 5 and V 6 , which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amido group, an alkoxycarbonyl group or a cyano group; two or more of the substituents represented by V 1 , V 2 , V 3 , V 4 , V 5 or V 6 may be present in the molecules; R 21 , R 22 , R 23 , R 24 , R 25 , R 26 , R 27 , R 28 and R 29 , which may be the same or different, each represents an alkyl group or an aralkyl group, provided that at least one of R 21 and R 22 , R 23 , R 24 and R 25 or R 26 , R 27 , R 28 and R 29 represents an alkyl or aralkyl group having a sulfo group, a salt thereof, a carboxy group, a salt thereof or a hydroxy group; Y represents an oxygen atom or a sulfur atom; X 1 , X 2 and X 3 each represents an acid anion; and l, m and n each represents 0 or 1, when the compound is an inner salt, l, m or n is 0.
Claim 14
Dependent Claim
37 words
A silver halide color photographic light-sensitive material as claimed in claim 12, wherein an amount of the spectral sensitizing dye is in a range from 1×10 -6 mol to 1×10 -2 mol per mol of silver halide.
Claim 15
Dependent Claim
20 words
A silver halide color photographic light-sensitive material as claimed in claim 1, wherein the silver halide emulsion is chemically sensitized.
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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) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |