US4863841A
Expired / Lapsed
US
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Silver halide color photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1989-02-13
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Granted: 1989-09-05
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Expires: 2009-02-13
Abstract
Abstract A silver halide color photographic material comprising a support having thereon at least one photosensitive silver halide emulsion layer, wherein a 5-pyrazolone type 2-equivalent coupler is present in the photosensitive silver halide emulsion layer or a layer adjacent thereto and a hardening agent which acts by activating a carboxy group is present in a photosensitive or non-photosensitive photographic layer of the silver halide color photographic material.
Inventors
- 👤 Hisashi Okamura
- 👤 Hidetoshi Kobayashi
- 👤 Toshihiro Nishikawa
- 👤 Koji Tamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:25
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36; G03C7/38; G03C7/384; G03C1/00; G03C1/005; G03C1/06; G03C1/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
128 words
A silver halide color photographic material comprising a suport having thereon at least one photosensitive silver halide emulsion layer, wherein a 5-pyrazolone type-2-equivalent magenta dye image-forming coupler is present in the photosensitive silver halide emulsion layer or a layer adjacent thereto and a hardening agent which acts by activating a carboxy group is present in a photosensitive or non-photosensitive photographic layer of the silver halide color photographic material, wherein the 5-pyrazolone type 2-equivalent magenta image-forming coupler is a command represented by formula (A) ##STR27## wherein R 1 represents a carbonamido group, an anilino group, or a ureido group; R 2 represents an aryl group; and X represents a group capable of being released by the coupling reaction with the oxidation product of an aromatic primary amine developing agent.
Claim 2
Dependent Claim
128 words
A silver halide color photographic material comprising a suport having thereon at least one photosensitive silver halide emulsion layer, wherein a 5-pyrazolone type-2-equivalent magenta dye image-forming coupler is present in the photosensitive silver halide emulsion layer or a layer adjacent thereto and a hardening agent which acts by activating a carboxy group is present in a photosensitive or non-photosensitive photographic layer of the silver halide color photographic material, wherein the 5-pyrazolone type 2-equivalent magenta image-forming coupler is a command represented by formula (A) ##STR27## wherein R 1 represents a carbonamido group, an anilino group, or a ureido group; R 2 represents an aryl group; and X represents a group capable of being released by the coupling reaction with the oxidation product of an aromatic primary amine developing agent.
Claim 3
Dependent Claim
151 words
A silver halide color photographic material as in claim 1, wherein the hardening agent is a compound represented by formula (I) ##STR28## wherein R 1 and R 2 each represents an alkyl group having from 1 to 10 carbon atoms, an aryl group having from 6 to 15 carbon atoms, or an aralkyl group having from 7 to 15 carbon atoms, or said R 1 and R 2 can together form a heterocyclic ring with the nitrogen atom to which R 1 and R 2 are bonded in formula (I); R 3 represents a hydrogen atom, a halogen atom, a carbamoyl group, a sulfo group, a ureido group, an alkoxy group having from 1 to 10 carbon atoms, or an alkyl group having from 1 to 10 carbon atoms; and X.sup.⊖ represents an anion; when the hardening agent of the formula (I) forms an intramolecular salt, said X.sup.⊖ is not necessary.
Claim 4
Dependent Claim
151 words
A silver halide color photographic material as in claim 1, wherein the hardening agent is a compound represented by formula (II) ##STR29## wherein R 1 and R 2 each represents an alkyl group having from 1 to 10 carbon atoms, an aryl group having from 6 to 15 carbon atoms, or an aralkyl group having from 7 to 15 carbon atoms, or said R 1 and R 2 can together form a heterocyclic ring with the nitrogen atom to which R 1 and R 2 are bonded in formula (II); R 3 represents a hydrogen atom, a halogen atom, a carbamoyl group, a sulfo group, a ureido group, an alkoxy group having from 1 to 10 carbon atoms, or an alkyl group having from 1 to 10 carbon atoms; and X.sup.⊖ represents an anion; when the hardening agent of the formula (II) forms an intramolecular salt, said X.sup.⊖ is not necessary.
Claim 5
Dependent Claim
129 words
A silver halide color photographic material as in claim 1, wherein the hardening agent is a compound represented by formula (III) ##STR30## wherein R 1 , R 2 , R 3 and R 4 each represents an alkyl group having from 1 to 20 carbon atoms, an aralkyl group having from 6 to 20 carbon atoms, or an aryl group having from 5 to 20 carbon atoms; or two groups of said R 1 , R 2 , R 3 and R 4 can together form a ring; X represents a group capable of being released when the compound shown by formula (III) reacts with a nucleophilic reagent; and Y.sup.⊖ represents an anion, providing that the anion Y.sup.⊖ is not necessary when the hardening agent forms an intramolecular salt.
Claim 6
Dependent Claim
171 words
A silver halide color photographic material as in claim 1, wherein the hardening agent is a compound represented by formula (IV) R.sup.1 --N═C═N--R.sup.2 (IV) wherein R 1 represents an alkyl group having from 1 to 10 carbon atoms, a cycloalkyl group having from 5 to 8 carbon atoms, an alkoxyalkyl group having from 3 to 10 carbon atoms, or an aralkyl group having from 7 to 15 carbon atoms; R 2 represents the same groups as R 1 , or a group represented by ##STR31## wherein R 3 represents an alkylene group having from 2 to 4 carbon atoms; R 4 and R 5 each represents an alkyl group having from 1 to 6 carbon atoms, or said R 4 and R 5 can together form a heterocyclic ring with a nitrogen atom; R 6 represents an alkyl group having from 1 to 6 carbon atoms; and X.sup.⊖ represents an anion; when the hardening agent of formula (IV) forms an intramolecular salt, the counter anion represented by X.sup.⊖ is not necessary.
Claim 7
Dependent Claim
161 words
A silver halide color photographic material as in claim 1, wherein the hardening agent is a compound represented by formula (V) ##STR32## wherein R 1 represents an alkyl group having from 1 to 10 carbon atoms, an aryl group having from 6 to 15 carbon atoms, or an aralkyl group having from 7 to 15 carbon atoms; R 2 and R 3 each represents a hydrogen atom, a halogen atom, an acylamido group, a nitro group, a carbamoyl group, a ureido group, an alkoxy group, an alkyl group, an alkenyl group, an aryl group, or an aralkyl group, or said R 2 and R 3 can together form a condensed ring with the pyridinium ring skeleton of formula (V); X represents a group capable of being released when the compound shown by formula (V) reacts with a nucleophilic reagent; and Y - represents an anion, providing that such the anion is not necessary when the hardening agent forms an intramolecular salt.
Claim 8
Dependent Claim
130 words
A silver halide color photographic material as in claim 1, wherein the hardening agent is a compound represented by formula (VI) ##STR33## wherein R 1 and R 2 each represents an alkyl group having from 1 to 10 carbon atoms, an aryl group having from 6 to 15 carbon atoms, or an aralkyl group having from 7 to 15 carbon atoms, or said R 1 and R 2 can together form a heterocyclic ring with the nitrogen atom to which R 1 and R 2 are bonded in formula (VI); R 3 represents an alkyl group having from 1 to 10 carbon atoms, an aryl group having from 6 to 15 carbon atoms, or an aralkyl group having from 7 to 15 carbon atoms; and X - represents an anion.
Claim 9
Dependent Claim
40 words
A silver halide color photographic material as in claim 1, wherein the hardening agent is present in said layer in a range of from 0.01 to 20% by weight with respect to the weight of dry gelatin in the layer.
Claim 10
Dependent Claim
40 words
A silver halide color photographic material as in claim 1, wherein the hardening agent is present in said layer in a range of from 0.05 to 10% by weight with respect to the weight of dry gelatin in the layer.
Claim 11
Dependent Claim
33 words
A silver halide color photographic material as in claim 1, wherein the coupler is present in an amount in a range of from 2×10 -3 to 1 mole per mole of silver halide.
Claim 12
Dependent Claim
33 words
A silver halide color photographic material as in claim 1, wherein the coupler is present in an amount in a range of from 5×10 -3 to 0.5 mole per mole of silver halide.
Claim 13
Dependent Claim
30 words
A silver halide color photographic material as in claim 1, wherein the non-photosensitive layer is a subbing layer, a backing layer, a filter layer, an interlayer, or an overcoat layer.
Claim 14
Dependent Claim
66 words
A silver halide color photographic material as in claim 1, wherein the hardening agent is present in said layer in a range of from 0.01 to 20% by weight with respect to the weight of dry gelatin in the layer and wherein the 2-equivalent magenta dye image-forming coupler is present in an amount in the range of from 2×10 3 to 1 mole of silver halide.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1992-09-04 | 1993-03-06 | 1993-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-04 | 1997-03-06 | 1997-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-04 | 2001-03-06 | 2001-09-05 | $7700.00 | Window Closed / Lapsed |