US5006445A
Expired / Lapsed
US
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Silver halide photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1989-04-26
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Granted: 1991-04-09
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Expires: 2009-04-26
Abstract
Abstract A silver halide photographic material comprising a support having thereon at least one hydrophilic colloid layer, at least one of which is a silver halide photographic emulsion layer, is disclosed. At least one of the silver halide emulsion layers or other hydrophilic colloid layers of the photographic material contains a compound represented by formula (I): ##STR1## wherein, A 1 and A 2 both represent hydrogen atoms or one represents a hydrogen atom and the other a sulfonyl group or an acyl group, R 1 represents an aliphatic group, an aromatic group or a heterocyclic group, G 1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, a ##STR2## group wherein R 2 represents an alkoxy group or an aryloxy group, a ##STR3## group or an iminomethylene group, X 1 is a moiety which instigates a ring-forming reaction by cleaving the --G 1 --X 1 moiety from the residual molecule and forms a cyclic structure containing the atoms of the --G 1 --X 1 moiety, and at least one of R 1 and X 1 has a silver halide adsorption accelerating group.
Inventors
- 👤 Morio Yagihara
- 👤 Hisashi Okada
- 👤 Kazunobu Katoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:35
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/061
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
268 words
A silver halide photographic material comprising a support having thereon at least one hydrophilic colloid layer, at least one of which is a silver halide photographic emulsion layer, wherein at least one of said silver halide emulsion layers or other hydrophilic colloid layers contains a compound represented by formula (I): ##STR38## wherein, A 1 and A 2 both represent hydrogen atoms or one represents a hydrogen atom and the other a sulfonyl group or an acyl group, R 1 represents an aliphatic group, an aromatic group or a heterocyclic group, G 1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, a ##STR39## group wherein R 2 represents an alkoxyl group or an aryloxy group, a ##STR40## group or an iminomethylene group, X 1 is represented by formula (a): --L.sub.1 --Z.sub.1 (a) wherein Z 1 is --COOH, --OH, --SH or --NHR 3 (wherein R 3 is a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, a --COR 4 group or a --SO 2 R 4 group wherein R 4 is a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group) and L 1 is a divalent organic group whereby G 1 , L 1 and Z 1 are able to form a ring structure when Z 1 attacks G 1 nucleophilically; and at least one of R 1 and X 1 has a silver halide adsorption accelerating group represented by Y 1 -- (L 2 )l--(wherein Y 1 is a ring-like thioamido group or a nitrogen-containing heterocyclic group, L 2 is a divalent linking group, and l is 0 or 1).
Claim 2
Dependent Claim
268 words
A silver halide photographic material comprising a support having thereon at least one hydrophilic colloid layer, at least one of which is a silver halide photographic emulsion layer, wherein at least one of said silver halide emulsion layers or other hydrophilic colloid layers contains a compound represented by formula (I): ##STR38## wherein, A 1 and A 2 both represent hydrogen atoms or one represents a hydrogen atom and the other a sulfonyl group or an acyl group, R 1 represents an aliphatic group, an aromatic group or a heterocyclic group, G 1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, a ##STR39## group wherein R 2 represents an alkoxyl group or an aryloxy group, a ##STR40## group or an iminomethylene group, X 1 is represented by formula (a): --L.sub.1 --Z.sub.1 (a) wherein Z 1 is --COOH, --OH, --SH or --NHR 3 (wherein R 3 is a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, a --COR 4 group or a --SO 2 R 4 group wherein R 4 is a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group) and L 1 is a divalent organic group whereby G 1 , L 1 and Z 1 are able to form a ring structure when Z 1 attacks G 1 nucleophilically; and at least one of R 1 and X 1 has a silver halide adsorption accelerating group represented by Y 1 -- (L 2 )l--(wherein Y 1 is a ring-like thioamido group or a nitrogen-containing heterocyclic group, L 2 is a divalent linking group, and l is 0 or 1).
Claim 3
Dependent Claim
25 words
A silver halide photographic material as in claim 1, wherein the compound represented by formula (I) is contained in the silver halide photographic emulsion layer.
Claim 4
Dependent Claim
23 words
A silver halide photographic material as in claim 1, wherein the compound represented by formula (I) is contained in the hydrophilic colloid layer.
Claim 5
Dependent Claim
19 words
A silver halide photographic material as in claim 1, wherein both A 1 and A 2 are hydrogen atoms.
Claim 6
Dependent Claim
104 words
A silver halide photographic material as in claim 1, wherein X 1 is represented by formula (b): ##STR41## wherein R b 1 , R b 2 , R b 3 , and R b 4 , may be identical or different, and represent hydrogen atoms, alkyl groups, alkenyl groups, and aryl groups; B is an atom which is required to complete a 5-membered ring or 6-membered ring; and m and n are 0 and 1 with the proviso that (n+m) is 0 or 1 when Z 1 is COOH and is 1 or 2 when Z 1 is OH, SH or NHR 3 .
Claim 7
Dependent Claim
17 words
A silver halide photographic material as in claim 5, wherein m is 0 and n is 1.
Claim 8
Dependent Claim
19 words
A silver halide photographic material as in claim 6, wherein the ring formed by B is a benzene ring.
Claim 9
Dependent Claim
78 words
A silver halide photographic material as in claim 1, wherein X 1 is represented by formula (c): ##STR42## wherein R c 1 and R c 2 may be identical or different and are selected from hydrogen atoms, alkyl groups, alkenyl groups, aryl groups, and halogen atoms, R c 3 represents a hydrogen atom, an alkyl group, an alkenyl group or an aryl group, p represents 0 to 1 and q represents an integer of from 1 to 4.
Claim 10
Dependent Claim
110 words
A silver halide photographic material as in claim 1, wherein the compound represented by formula (I) is further represented by formula (II): ##STR43## wherein R 1 ' is a group from which one of the hydrogen atoms of R 1 in formula (I) has been excluded, Y 1 , X 2 , L 2 , l, and A 1 , A 2 , G 1 , and X 1 have the same significance as explained for formula (I), with the proviso that at least one of R 1 ' and L 2 is a substituent group which can be dissociated to an anion of a pKa of 6 or greater.
Claim 11
Dependent Claim
91 words
A silver halide photographic material as in claim 1, wherein the compound represented by formula (I) is further represented by formula (III): ##STR44## wherein the R 8 groups may be identical or different and are selected from the same groups represented by R 1 in formula (I), L 3 is a divalent linking group, k represents 0, 1 or 2, and j represents 0 or 1 and Y 1 , A 1 , A 2 , G 1 , and X 1 have the same significance as explained for formula (I).
Claim 12
Dependent Claim
32 words
A silver halide photographic material as in claim 1, wherein the compound represented by formula (I) is present in an amount ranging from 1×10 -5 to 5×10 -2 mol/mol of silver halide.
Claim 13
Dependent Claim
32 words
A silver halide photographic material as in claim 11, wherein the compound represented by formula (I) is present in an amount ranging from 2×10 -5 to 1×10 -2 mol/mol of silver halide.
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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) | 1994-04-08 | 1994-10-08 | 1995-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-08 | 1998-10-08 | 1999-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-08 | 2002-10-08 | 2003-04-09 | $7700.00 | Window Closed / Lapsed |