US5652088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1996-01-02
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Granted: 1997-07-29
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Expires: 2016-01-02
Abstract
Abstract A silver halide photographic material comprising a transparent support and at least one silver halide emulsion layer provided on at least one side of said transparent support, said at least one silver halide emulsion layer comprising silver halide grains, wherein at least 50% of the total projected area of said silver halide grains accounts for silver chloride-containing tabular grains having a silver chloride content of 20 mol % or more, and the tabular grains have an average aspect ratio of 2 or more, and the silver halide photographic material contains at least one compound represented by formula [I] or (A): ##STR1## The photographic material can reduce pollution caused by developing solutions and fixing solutions, and reduce the replenishment rate thereof.
Inventors
- 👤 Seiji Yamashita
- 👤 Hirohiko Tsuzuki
- 👤 Tadashi Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:09
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/42; G03C1/0051; G03C1/0053; Y; Y10; Y10S; Y10S430/00; Y10S430/167
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
286 words
A silver halide photographic material comprising a transparent support and at least one silver halide emulsion layer provided on at least one side of said transparent support, said at least one silver halide emulsion layer comprising silver halide grains, wherein at least 50% of the total projected area of said silver halide grains accounts for silver chloride-containing tabular grains having a silver chloride content of 20 mol % or more, the silver chloride-containing tabular grains having (100) faces as major faces, and the tabular grains have an average aspect ratio of 2 or more, and the silver halide photographic material contains at least one compound represented by formula [I] or (A): ##STR26## wherein R 2 , R 3 , R 4 , R 5 and R 6 are the same or different and each represents a hydrogen atom or a group which can be substituted to the benzene ring, with the proviso that the total carbon atom number of R 2 , R 3 , R 4 , R 5 and R 6 is 8 or more and at least one of R 2 and R 4 is a hydroxyl group, a sulfonamido group or a carbonamido group; Z represents a hydrogen atom or a protecting group which can be deprotected under alkaline conditions; and R 2 , R 3 , R 4 , R 5 and R 6 and OZ may combine with each other to form a ring: ##STR27## wherein X represents an aryl group, a heterocyclic group or a group represented by formula (B) ##STR28## wherein R 1 , R 2 and R 3 are the same or different, and each represents a hydrogen atom or a group other than a hydroxyl group.
Claim 2
Dependent Claim
286 words
A silver halide photographic material comprising a transparent support and at least one silver halide emulsion layer provided on at least one side of said transparent support, said at least one silver halide emulsion layer comprising silver halide grains, wherein at least 50% of the total projected area of said silver halide grains accounts for silver chloride-containing tabular grains having a silver chloride content of 20 mol % or more, the silver chloride-containing tabular grains having (100) faces as major faces, and the tabular grains have an average aspect ratio of 2 or more, and the silver halide photographic material contains at least one compound represented by formula [I] or (A): ##STR26## wherein R 2 , R 3 , R 4 , R 5 and R 6 are the same or different and each represents a hydrogen atom or a group which can be substituted to the benzene ring, with the proviso that the total carbon atom number of R 2 , R 3 , R 4 , R 5 and R 6 is 8 or more and at least one of R 2 and R 4 is a hydroxyl group, a sulfonamido group or a carbonamido group; Z represents a hydrogen atom or a protecting group which can be deprotected under alkaline conditions; and R 2 , R 3 , R 4 , R 5 and R 6 and OZ may combine with each other to form a ring: ##STR27## wherein X represents an aryl group, a heterocyclic group or a group represented by formula (B) ##STR28## wherein R 1 , R 2 and R 3 are the same or different, and each represents a hydrogen atom or a group other than a hydroxyl group.
Claim 3
Dependent Claim
115 words
The silver halide photographic material as claimed in claim 1, wherein R 2 , R 3 , R 4 , R 5 and R 6 each represents a halogen atom, a hydroxyl group, a sulfo group, a carboxyl group, a cyano group, an alkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, a carbonamido group, a sulfonamido group, a ureido group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, an acyloxy group, a sulfamoylamino group, a sulfonyloxy group, a carbamoyl group, a sulfamoyl group, an acyl group, a sulfonyl group, an alkoxycarbonyl group or an aryloxycarbonyl group.
Claim 4
Dependent Claim
26 words
The silver halide photographic material as claimed in claim 1, wherein Z represents a hydrogen atom, an acyl group, an oxycarbonyl group or a carbamoyl group.
Claim 5
Dependent Claim
185 words
The silver halide photographic material as claimed in claim 1, wherein the compound represented by formula [I] is represented by formula [II], [III], [IV] or [V]: ##STR29## wherein X represents a hydroxyl group or a sulfonamido group, and R 2 , R 3 , R 5 and R 6 each has the same meaning as given in formula [I]; ##STR30## wherein X represents a hydroxyl group or a sulfonamido group, and R 2 , R 3 , R 4 , R 5 and R 6 each has the same meaning as given in formula [I]; ##STR31## wherein X represents a hydroxyl group or a sulfonamido group, Y represents a carbamoyl group, an oxycarbonyl group, an acyl group or a sulfonyl group, and R 3 and R 5 each has the same meaning as given in formula [I]; ##STR32## wherein R 51 to R 58 each has the same meaning as R 2 given in formula [I], R 59 to R 62 each represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group, and n is an integer of 0 to 50.
Claim 6
Dependent Claim
81 words
The silver halide photographic material as claimed in claim 1, wherein R 1 , R 2 and R 3 each represents an alkyl group, an aryl group, an alkoxyl group, an aryloxy group, an alkylthio group, an arylthio group, an acyloxy group, an amino group, an alkylamino group, a carbonamido group, a sulfonamido group, a ureido group, an oxycarbonyl group, a carbamoyl group, a sulfinyloxy group, a carboxyl group and a salt thereof, and a sulfo group and a salt thereof.
Claim 7
Dependent Claim
67 words
The silver halide photographic material as claimed in claim 1, wherein the compound represented by formula (A) is represented by formula (C) ##STR33## wherein Y represents a hydrogen atom or a group represented by formula (D) ##STR34## wherein R 11 and R 12 are the same or different, and each represents a hydrogen atom, an alkyl group, an alkoxyl group, an acyloxy group or an oxycarbonyl group.
Claim 8
Dependent Claim
72 words
The silver halide photographic material as claimed in claim 1, wherein the compound represented by formula (A) is represented by formula (E) ##STR35## wherein R 4 and R 5 are be the same or different, and each represents a hydrogen atom, an alkyl group, an aryl group or an alkenyl group; and the alkyl groups represented by R 4 and R 5 may combine with each other to form a ring structure.
Claim 9
Dependent Claim
29 words
The silver halide photographic material as claimed in claim 1, wherein said at least one compound represented by formula [I] or (A) is a compound represented by formula (A).
Claim 10
Dependent Claim
38 words
The silver halide photographic material as claimed in claim 1, wherein said at least one compound represented by formula [I] or (A) is contained in said at least one silver halide emulsion layer or an adjacent layer thereof.
Claim 11
Dependent Claim
38 words
The silver halide photographic material as claimed in claim 1, wherein said at least one compound represented by formula [I] or (A) is contained in an amount of 0.01 to 10 mol per 1 mol of silver halide.
Claim 12
Dependent Claim
67 words
The silver halide photographic material as claimed in claim 1, wherein from 70% to 100% of the total projected area of said silver halide grains accounts for silver chloride-containing tabular grains having (i) a silver chloride content of 50 mol % to 100 mol % and (ii) a (100) face as a major face, and the tabular grains have an average aspect ratio of 5 to 20.
Claim 13
Dependent Claim
46 words
The silver halide photographic material as claimed in claim 1, wherein the coating amount of silver per one side of the support is 2.0 g/m 2 or less, and said at least on silver halide emulsion layers are formed on both sides of said transparent support.
Claim 14
Dependent Claim
29 words
The silver halide photographic material as claimed in claim 12, wherein the coating amount of silver per one side of the support is 0.5 to 1.8 g/m 2 .
Claim 15
Dependent Claim
30 words
The silver halide photographic material as claimed in claim 1, which is used in combination with an X-ray absorbent fluorescent intensifying screen having an emission peak in an ultraviolet region.
Claim 16
Dependent Claim
32 words
The silver halide photographic material as claimed in claim 1, which is used in combination with an X-ray absorbent fluorescent intensifying screen having an emission peak between 540 nm and 555 nm.
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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) | 2000-07-28 | 2001-01-27 | 2001-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-28 | 2005-01-27 | 2005-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-28 | 2009-01-27 | 2009-07-29 | $7700.00 | Window Closed / Lapsed |