US4554247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic material
Assignee: Konica Minolta Inc
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Filing: 1984-02-13
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Granted: 1985-11-19
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Expires: 2004-02-13
Abstract
Abstract A silver halide photographic material having as essential photographic layers at least one photosensitive silver halide emulsion layer and at least one non-sensitive hydrophilic colloidal layer on a support is disclosed. At least one of said photographic layers contains fine oil globules at a density of 1 or more, and a hardener having at least three functional groups is incorporated in at least one photographic layer containing said fine oil globules and/or at least one photographic layer which is farther from said support than the photographic layer containing said fine oil globules.
Inventors
- 👤 Kiyotoshi Yamashita
- 👤 Minoru Ishikawa
- 👤 Hideo Ohta
- 👤 Kenji Kumashiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:29
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/30; G03C7/00; G03C7/30; G03C7/388
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
122 words
A silver halide photographic material having as essential photographic layers at least one photosensitive silver halide emulsion layer and at least one nonsensitive hydrophilic colloidal layer on a support, at least one of said photographic layers containing fine oil globules at a density in the range of 1 to 100, and a hardener having at least three functional groups being incorporated in at least one photographic layer containing said fine oil globules and/or at least one photographic layer which is farther from said support than the photographic layer containing said fine oil globules, wherein the combination of said hardener and said density of 1 to 100 is effective to provide said silver halide photographic material with improved image sharpness and reduced bleeding.
Claim 2
Dependent Claim
122 words
A silver halide photographic material having as essential photographic layers at least one photosensitive silver halide emulsion layer and at least one nonsensitive hydrophilic colloidal layer on a support, at least one of said photographic layers containing fine oil globules at a density in the range of 1 to 100, and a hardener having at least three functional groups being incorporated in at least one photographic layer containing said fine oil globules and/or at least one photographic layer which is farther from said support than the photographic layer containing said fine oil globules, wherein the combination of said hardener and said density of 1 to 100 is effective to provide said silver halide photographic material with improved image sharpness and reduced bleeding.
Claim 3
Dependent Claim
25 words
A silver halide photographic material according to claim 1, wherein the density of said fine oil globules is in the range of 1 to 10.
Claim 4
Dependent Claim
25 words
A silver halide photographic material according to claim 1, wherein the density of said fine oil globules is in the range of 1 to 3.
Claim 5
Dependent Claim
24 words
A silver halide photographic material according to claim 1, wherein the functional groups of said hardener are active vinyl groups or active halogen atoms.
Claim 6
Dependent Claim
17 words
A silver halide photographic material according to claim 4, wherein said active vinyl groups are vinylsulfonyl groups.
Claim 7
Dependent Claim
45 words
A silver halide photographic material according to claim 1, wherein said hardener is represented by the following formula (I): Formula (I): R(SO.sub.2 CH═CH.sub.2).sub.n (wherein R is an aliphatic, aromatic or heterocyclic residual group having an n-valency; and n is an integer of 3 or more.)
Claim 8
Dependent Claim
71 words
A silver halide photographic material according to claim 6, wherein the aliphatic residual group represented by R in said formula (I) is a hydrocarbon group having 1 to 12 carbon actoms or a hydrocarbon group having 1 to 12 carbon atoms connected to an atom selected from among oxygen (O), sulfur (S) and nitrogen (N) atoms or to a group selected from among SO 2 , CO, aromatic and heterocyclic groups.
Claim 9
Dependent Claim
27 words
A silver halide photographic material according to claim 6, wherein the aromatic residual group represented by R in said formula (I) is a phenyl or naphthyl group.
Claim 10
Dependent Claim
33 words
A silver halide photographic material according to claim 6, wherein the heterocyclic residual group represented by R in said formula (I) is selected from the group consisting of hexahydrotriazine, piperazine, tetrahydrofuran and imidazolizine.
Claim 11
Dependent Claim
33 words
A silver halide photographic material according to claim 7, wherein the heterocyclic residual group represented by R in said formula (I) is selected from the group consisting of hexahydrotriazine, piperazine, tetrahydrofuran and imidazolizine.
Claim 12
Dependent Claim
20 words
A silver halide photographic material according to claim 1, wherein the functional groups of said hardener are active halogen atoms.
Claim 13
Dependent Claim
218 words
A silver halide photographic material according to claim 11, wherein said hardener is a hardener represented by the following formula (II) or (III) or a partially hydrolyzed product of the compound represented by the following formula (IV): Formula (II): ##STR13## {wherein R 1 and R 2 are each a hydrogen atom or an alkyl group; and Y is an alkylene group having 2 or more carbon atoms, a cycloalkylene group, a phenylene group, a biphenylene group, a phenyleneoxyphenylene group, ##STR14## (wherein R 3 is hydrogen atom or an alkyl group; and m 1 and n 1 are each an integer of 2 or 3) or ##STR15## (wherein R 4 and R 5 are each a hydrogen atom or an alkyl group; and m 2 and n 2 are each an integer of 2 or 3}. Formula (III): ##STR16## (wherein R 6 , R 7 and R 8 are each a hydrogen atom or an alkyl group; m 3 is an integer of 2 or 3; and n 3 is an integer of 1 or 2). Formula (IV): ##STR17## {wherein m 4 is O or a positive integer; n 4 is a positive integer; X is an organic residue with a valence of (m 4 +n 4 ); and R 9 is a hydrogen atom or an organic residue}.
Claim 14
Dependent Claim
24 words
A silver halide photographic material according to claim 1, wherein said photographic layer is a photosensitive silver halide emulsion layer containing fine oil globules.
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) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |