EP0306246A2
Expired / Lapsed
EP
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Silver halide photographic material
Assignee: Konica Minolta Inc
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Filing: 1988-08-26
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Granted: —
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Expires: 2008-08-26
Abstract
Abstract A silver halide photographic material that contains a polymer including a repeating unit represented by the following general formula (I) and having a weight average molecular weight of no more than 30,000: <CHEM> where R<1> is a hydrogen atom or an alkyl group; Z represents the atomic group necessary to form a lactam ring, an oxazolidone ring or a pyrrolidone ring; A is a simple linkage, -CO-, -COO(CH2 @@@ or -CONR<2>(CH2 @@@ where R<2> is a hydrogen atom or an alkyl group, and n is an integer of 1 - 6. This photographic material experiences a minimum level of increase in fogging during rapid processing and produces image having improved sharpness and granularity.
Inventors
- 👤 Hiroshi Shimazaki
- 👤 Fumie Fukazawa
- 👤 Masayuki Kurematsu
- 👤 Kenjiro Ushiyama
- 👤 Satoru Shimba
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:10
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/396; G03C1/00; G03C1/005; G03C1/04; G03C1/053
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
95 words
A silver halide photographic material that contains a polymer including a repeating unit represented by the following general formula (I) and having a weight average molecular weight of no more than 30,000: where R 1 is a hydrogen atom or an alkyl group; Z represents the atomic group necessary to form a lactam ring, an oxazolidone ring or a pyrrolidone ring; A is a simple linkage, -CO-, -COO(CH2+n or -CONR 2 (CH 2 ) n where R 2 is a hydrogen atom or an alkyl group, and n is an integer of 1 - 6.
Claim 2
Dependent Claim
95 words
A silver halide photographic material that contains a polymer including a repeating unit represented by the following general formula (I) and having a weight average molecular weight of no more than 30,000: where R 1 is a hydrogen atom or an alkyl group; Z represents the atomic group necessary to form a lactam ring, an oxazolidone ring or a pyrrolidone ring; A is a simple linkage, -CO-, -COO(CH2+n or -CONR 2 (CH 2 ) n where R 2 is a hydrogen atom or an alkyl group, and n is an integer of 1 - 6.
Claim 3
Dependent Claim
44 words
A silver halide photographic material according to claim 1 wherein R 1 in the general formula (I) is a hydrogen atom, A is a simple linkage or and Z is the atomic group necessary to form a 5- or 6-membered lactam or oxazolidone ring.
Claim 4
Dependent Claim
21 words
A silver halide photographic material according to claim 2 wherein in the general formula (I) is a pyrrolidone or oxazolidone residue.
Claim 5
Dependent Claim
15 words
A silver halide photographic material according to claim 3 wherein said is a pyrrolidone residue.
Claim 6
Dependent Claim
23 words
A silver halide photographic material according to claim 1 wherein said polymer has a weight average molecular weight of no more than 20,000.
Claim 7
Dependent Claim
23 words
A silver halide photographic material according to claim 5 wherein said polymer has a weight average molecular weight of no more than 10,000.
Claim 8
Dependent Claim
41 words
A silver halide photographic material according to claim 1 wherein said polymer is present in an amount of 0.01 - 10 g per mole of silver in terms of the weight of the repeating unit represented by the general formula (I).
Claim 9
Dependent Claim
41 words
A silver halide photographic material according to claim 7 wherein said polymer is present in an amount of 0.02 - 5.0 g per mole of silver in terms of the weight of the repeating unit represented by the general formula (I).
Claim 10
Dependent Claim
41 words
A silver halide photographic material according to claim 8 wherein said polymer is present in an amount of 0.1 - 2.0 g per mole of silver in terms of the weight of the repeating unit represented by the general formula (I).
Claim 11
Dependent Claim
20 words
A silver halide photographic material according to claim 1 wherein said polymer is incorporated in a silver halide emulsion layer.
Claim 12
Dependent Claim
32 words
A silver halide photographic material according to claim 1 which contains a silver halide emulsion consisting of silver iodobromide or silver chloroiodobromide containing at least 0.5 mol O /o of silver iodide.
Claim 13
Dependent Claim
22 words
A silver halide photographic material according to claim 1 which contains a silver halide emulsion composed of core/shell type silver halide grains.
Claim 14
Dependent Claim
141 words
A silver halide photographic material according to claim 1 which contains a benzoyl type yellow coupler represented by the following general formula (YB-1): where R 1 , R 2 and R 3 which may be the same or different each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an acylamino group, a carbamoyl group, an alkoxycarbonyl group, a sulfonamido group or a sulfamoyl group, R 4 , R 5 , R6 and R 7 which may be the same or different each represents a hydrogen atom, an alkyl group, an alkoxy group, an aryloxy group, an acylamino group or a sulfonamido group; W is a halogen atom, an alkyl group, an alkoxy group, an aryloxy group or a dialkylamino group; and Xi is a hydrogen atom or a group that can be eliminated.
Claim 15
Dependent Claim
36 words
A silver halide photographic material according to claim 13 wherein Xi is a group represented by the following general formula (YB-II): where Y i denotes the non-metallic group necessary to form a 5- or 6-membered ring.
Claim 16
Dependent Claim
67 words
A silver halide photographic material according to claim 1 which contains a magenta coupler represented by the following general formula (M-I): where Z signifies the non-metallic atomic group necessary to form a nitrogenous heterocyclic ring; X is a hydrogen atom or a group that can be eliminated upon reaction with the oxidation product of a color developing agent; and R is a hydrogen atom or a substituent.
Claim 17
Dependent Claim
42 words
A silver halide photographic material according to claim 15 wherein said magenta coupler is represented by the following general formula (M-II): where R 1 , R 2 and X are the same as R and X, respectively, in the general formula (M-I).
Claim 18
Dependent Claim
37 words
A silver halide photographic material according to claim 16 wherein R 2 is represented by the following general formula (M-X): where R 1 is an alkylene group and R 2 is an alkyl, cycloalkyl or aryl group.
Claim 19
Dependent Claim
197 words
A silver halide photographic material according to claim 1 which contains a naphtholic cyan coupler represented by the following general formula (CN): where R 1 is -CONR 4 Rs, -NHCOR 4 , -NHCOORs, -NHSO 2 R 6 , -NHCONR 4 R 5 or -NHSO 2 NR 4 R 5 ; R 2 is a monovalent group; R 3 is a substituent; X is a hydrogen atom or a group that is eliminated upon reaction with the oxidation product of an aromatic primary amino developing agent; ℓ is 0 or 1; m is an integer of 0 - 3; R 4 and Rs each represents a hydrogen atom, an aromatic group, an aliphatic group or a heterocyclic group; R 6 is an aromatic group, an aliphatic group or a heterocyclic group; when m is 2 or 3, R 3 may be the same or different and may combine with each other to form a ring; R 4 and Rs, R 2 and R 3 or R 2 and X may combine with each other to form a ring; when ℓ is 0, then m is 0, R 1 is -CONHR 7 and R 7 is an aromatic group.
Claim 20
Dependent Claim
121 words
A silver halide photographic material according to claim 1 which contains a ureidophenolic cyan coupler represented by the following general formula (CU): where X is a hydrogen atom or a group that can be eliminated upon coupling with an aromatic primary amino color developing agent; R 1 is an aryl group or a heterocyclic group; R 2 is an aliphatic group or an aryl group; each of the groups denoted by R 1 and R 2 may form a dimer or higher oligomers; R 1 and R 2 , taken either independently or in combination, have the shape or size necessary to impart non-diffusing property to the coupler represented by the general formula (CU) or a dye formed of said coupler.
Claim 21
Dependent Claim
68 words
A silver halide photographic material according to claim 19 wherein R 2 has a substituent represented by the following general formula (CU-II): where J is an oxygen or sulfur atom; k is an integer of 0 - 4; is 0 or 1; when k is 2 or more, R 4 may be the same or different; R 3 is an alkylene group; and R 4 is a substituent.
Claim 22
Dependent Claim
140 words
A silver halide photographic material having photographic constituent layers including a blue-sensitive, a green-sensitive and a red-sensitive emulsion layer on a support wherein at least one of said photographic constituent layers contains a polymer including a repeating unit represented by the following general formula and having a weight average molecular weight of no more than 30,000, the total thickness of said photographic constituent layers being no more than 18 µm on a dry basis: where R 1 is a hydrogen atom or an alkyl group; Z represents the atomic group necessary to form a lactam ring, an oxazolidone ring or a pyrrolidone ring; A is a simple linkage, -CO-, -COO(CH 2 )̵ n or -CONR 2 (CH 2 )̵ n where R 2 is a hydrogen atom or an alkyl group, and n is an integer of 1 - 6.
Claim 23
Dependent Claim
140 words
A silver halide photographic material having photographic constituent layers including a blue-sensitive, a green-sensitive and a red-sensitive emulsion layer on a support wherein at least one of said photographic constituent layers contains a polymer including a repeating unit represented by the following general formula and having a weight average molecular weight of no more than 30,000, the total thickness of said photographic constituent layers being no more than 18 µm on a dry basis: where R 1 is a hydrogen atom or an alkyl group; Z represents the atomic group necessary to form a lactam ring, an oxazolidone ring or a pyrrolidone ring; A is a simple linkage, -CO-, -COO(CH 2 )̵ n or -CONR 2 (CH 2 )̵ n where R 2 is a hydrogen atom or an alkyl group, and n is an integer of 1 - 6.
Claim 24
Dependent Claim
27 words
A silver halide photographic material according to claim 21 wherein the total thickness of said photographic constituent layers is in the range of 5 - 18 µm.
Claim 25
Dependent Claim
27 words
A silver halide photographic material according to claim 22 wherein the total thickness of said photographic constituent layers is in the range of 10 - 16 µm.
Claim 26
Dependent Claim
45 words
A silver halide photographic material according to claim 21 wherein the thickness of layers as measured from the top surface of said photographic material to the bottom of the silver halide emulsion layer situated the closest to the support is no more than 14 µm.
Claim 27
Dependent Claim
63 words
A silver halide photographic material according to claim 24 wherein the thickness of layers as measured from the top surface of said photographic material to the bottom of a silver halide emulsion layer that has sensitivity to a different color of light than said bottommost emulsion layer and which is situated the second closest to the support is not greater than 10 µm.
References Cited (Backward Citations)
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