Patent US5316890A successfully refreshed from Google Patents.
US5316890A
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Silver halide photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1993-06-29
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Granted: 1994-05-31
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Expires: 2013-06-29
Abstract
Abstract A silver halide light-sensitive material containing a compound selected from compounds represented by formula (I) or (II): ##STR1## wherein L 1 represents --O--, --S--, --SO--, --SO 2 --, --N(R 4 )--, --CONR 4 --, --NR 4 CO--, --OCONR 4 --, --NR 4 CONR 4 --, --SO 2 NR 4 --, --NR 4 SO 2 -- or --NR 4 SO 2 NR 4 --, each of which is bonded to the pyridine ring at the right hand side thereof; L 2 , L 3 , and L 4 each represent a divalent aliphatic group or a divalent aromatic group; G represents --CO--, --SO 2 --, --SO--, --COCO--, a thiocarbonyl group, an iminomethylene group or --P(O)(G 1 R 4 )--; G 1 represents a single bond, --O-- or --NR 4 --; R 1 represents an aliphatic group or an aromatic group; R 2 represents a monovalent substituent; n 1 represents 0 or an integer of from 1 to 4; R 3 represents a hydrogen atom, an aliphatic group, an aromatic group, an alkoxy group, an aryloxy group or an amino group; R 4 represents a hydrogen atom, an aliphatic group or an aromatic group; R 5 represents a monovalent group; m represents 0 or an integer of from 1 to 4; n 2 represents 0 or an integer of from 1 to 5; and X - represents a counter anion or a counter anion moiety in an intramolecular salt; two or more R 2 's, R 4 's or R 5 's, if any, may be the same or different. The light-sensitive material exhibits high processing stability even in rapid processing and provides a high contrast image even when developed with a developing solution at a low pH.
Inventors
- 👤 Hisashi Okamura
- 👤 Kazumi Nii
- 👤 Kazunobu Katoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:57
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/061
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
268 words
A silver halide light-sensitive material comprising a support having thereon a silver halide emulsion layer and a compound selected from compounds represented by formula (I) or (II): ##STR21## wherein L 1 represents --O--, --S--, --SO--, --SO 2 --, --N(R 4 )--, --CONR 4 --, --NR 4 CO--, `OCONR 4 --, --NR 4 CONR 4 --, --SO 2 NR 4 --, NR 4 SO 2 -- or --NR 4 SO 2 NR 4 --, each of which is bonded to the pyridine ring at the right hand side thereof; L 2 , L 3 , and L 4 each represent a divalent aliphatic group or a divalent aromatic group; G represents --CO--, --SO 2 --, --SO--, --COCO--, a thiocarbonyl group, an iminomethylene group or --P(O)(G 1 R 4 )--; G 1 represents a single bond, --O-- or --NR 4 --; R 1 represents an aliphatic group or an aromatic group; R 2 represents a monovalent substituent; n 1 represents 0 or an integer of from 1 to 4; R 3 represents a hydrogen atom, an aliphatic group, an aromatic group, an alkoxy group, an aryloxy group or an amino group; R 4 represents a hydrogen atom, an aliphatic group or an aromatic group; R 5 represents a monovalent group; m represents 0 or an integer of from 1 to 4; n 2 represents 0 or an integer of from 1 to 5; and X - represents a counter anion or a counter anion moiety in an intramolecular salt; two or more R 2 's, R 4 's or R 5 's, if any, may be the same or different.
Claim 2
Dependent Claim
268 words
A silver halide light-sensitive material comprising a support having thereon a silver halide emulsion layer and a compound selected from compounds represented by formula (I) or (II): ##STR21## wherein L 1 represents --O--, --S--, --SO--, --SO 2 --, --N(R 4 )--, --CONR 4 --, --NR 4 CO--, `OCONR 4 --, --NR 4 CONR 4 --, --SO 2 NR 4 --, NR 4 SO 2 -- or --NR 4 SO 2 NR 4 --, each of which is bonded to the pyridine ring at the right hand side thereof; L 2 , L 3 , and L 4 each represent a divalent aliphatic group or a divalent aromatic group; G represents --CO--, --SO 2 --, --SO--, --COCO--, a thiocarbonyl group, an iminomethylene group or --P(O)(G 1 R 4 )--; G 1 represents a single bond, --O-- or --NR 4 --; R 1 represents an aliphatic group or an aromatic group; R 2 represents a monovalent substituent; n 1 represents 0 or an integer of from 1 to 4; R 3 represents a hydrogen atom, an aliphatic group, an aromatic group, an alkoxy group, an aryloxy group or an amino group; R 4 represents a hydrogen atom, an aliphatic group or an aromatic group; R 5 represents a monovalent group; m represents 0 or an integer of from 1 to 4; n 2 represents 0 or an integer of from 1 to 5; and X - represents a counter anion or a counter anion moiety in an intramolecular salt; two or more R 2 's, R 4 's or R 5 's, if any, may be the same or different.
Claim 3
Dependent Claim
143 words
A silver halide light-sensitive material as claimed in claim 1, wherein R 1 represents substituted or unsubstituted alkyl group having 1 to 30 carbon atoms; R 2 represents an alkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an aryl group, a substituted amino group, a ureido group, a urethane group, an aryloxy group, a sulfamoyl group, a carbamoyl group, an alkyl or arylthio group, an alkyl or arylsulfonyl group, an alkyl or arylsulfinyl group, a hydroxyl group, a halogen atom, a cyano group, a sulfo group, an aryloxycarbonyl group, an acyl group, an alkoxycarbonyl group, an acyloxy group, a carbonamido group, a sulfonamido group, a carboxyl group, a phosphoric acid amido group, a diacylamino group or an imido group; R 3 represents an alkyl group having 1 to 4 carbon atoms, a monocyclic or bicyclic aryl group.
Claim 4
Dependent Claim
36 words
A silver halide light-sensitive material as claimed in claim 1, wherein, when G in formula (I) or (II) is --CO--, R 3 represents a hydrogen atom, an alkyl group, an aralkyl group, or an aryl group.
Claim 5
Dependent Claim
43 words
A silver halide light-sensitive material as claimed in claim 1, wherein L 1 in formula (I) represents --O--, --S--, --N(R 4 )--, --CONR 4 --, --OCONR 4 -- or SO 2 NR 4 --, wherein R 4 is defined as in claim 1.
Claim 6
Dependent Claim
41 words
A silver halide light-sensitive material as claimed in claim 1, wherein L 2 , L 3 and L 4 each represents a monocyclic or bicyclic aryl group or an unsaturated aromatic heterocyclic group which may be condensed with an aryl group.
Claim 7
Dependent Claim
104 words
A silver halide light-sensitive material as claimed in claim 1, wherein R 5 in formula (II) represents an alkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an alkoxy group, a urethane group, an aryloxy group, a sulfamoyl group, a carbamoyl group, an alkyl or arylthio group, an alkyl or arylsulfonyl group, an alkyl or arylsulfinyl group, a hydroxyl group, a halogen atom, a cyano group, a sulfo group, an aryloxycarbonyl group, an acyl group, an alkoxycarbonyl group, an acyloxy group, a carbonamido group, a sulfonamido group, a carboxyl group, a phosphoric acid amido group, a diacylamino group, or an imido group.
Claim 8
Dependent Claim
36 words
A silver halide light-sensitive material as claimed in claim 1, wherein the compound of formula (I) or (II) is used in an amount of 1.0×10 -6 to 5.10 -2 mol per mole of a silver halide.
Claim 9
Dependent Claim
26 words
A silver halide light-sensitive material as claimed in claim 1, wherein, when G in formula (I) or (II) is --CO--, R 3 represents a hydrogen atom.
Claim 10
Dependent Claim
37 words
A silver halide light-sensitive material as claimed in claim 1, wherein, when G in formula (I) or (II) is --CO--, R 3 represents a methyl, trifluoromethyl, 3-hydroxypropyl, 3-methanesulfonamidopropyl, phenylsulfonylmethy, o-hydroxybenzyl, phenyl, 3,5-dichlorophenyl, o-methanesulfonamidophenyl, 4-methanesulfonylphenyl or 2-hydroxymethylphneyl group.
Claim 11
Dependent Claim
34 words
A silver halide light-sensitive material as claimed in claim 1, wherein the compound is represented by formula (II) and R 5 in formula (II) represents an alkyl group having 1 to 20 carbon atoms.
Claim 12
Dependent Claim
34 words
A silver halide light-sensitive material as claimed in claim 1, wherein the compound is represented by formula (II) and R 5 in formula (II) represents an aralkyl group having 7 to 30 carbon atoms.
Claim 13
Dependent Claim
34 words
A silver halide light-sensitive material as claimed in claim 1, wherein the compound is represented by formula (II) and R 5 in formula (II) represents an alkoxy group having 1 to 20 carbon atoms.
Claim 14
Dependent Claim
39 words
A silver halide light-sensitive material as claimed in claim 1, wherein the compound is represented by formula (II) and R 5 in formula (II) represents an amino group substituted with an alkyl group having 1 to 20 carbon atoms.
Claim 15
Dependent Claim
18 words
A silver halide light-sensitive material as claimed in claim 1, wherein the compound is represented by formula (I).
Claim 16
Dependent Claim
18 words
A silver halide light-sensitive material as claimed in claim 1, wherein the compound is represented by formula (II).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-30 | 1997-11-29 | 1998-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-30 | 2001-11-29 | 2002-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-30 | 2005-11-29 | 2006-05-31 | $7700.00 | Window Closed / Lapsed |