US4297441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic material
Assignee: Konica Minolta Inc
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Filing: 1980-06-26
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Granted: 1981-10-27
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Expires: 2000-06-26
Abstract
Abstract This invention relates to photographic materials containing an ion pair compound which has a quaternary nitrogen atom as a cation and a boron compound as an anion.
Inventors
- 👤 Yutaka Kaneko
- 👤 Satoshi Kawakatsu
- 👤 Shigeto Hirabayashi
- 👤 Hidetaka Ninomiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:19
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34; C; C07; C07F; C07F5/00; C07F5/02; C07F5/027; G03C1/015; G03C1/42; G03C5/00; G03C5/26; G03C5/29; G03C5/30; G03C5/3021; G03C5/305; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C2200/00; G03C2200/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
148 words
A photographic material having a silver halide emulsion layer coated on a support, which material contains an ion compound which is composed from a compound having a quaternary nitrogen atom as a cation and a boron compound as an anion wherein the ion pair compound is represented by the following formula: ##STR47## wherein R 1 , R 2 , R 3 , R 4 , R 9 and R 10 individually represent a hydrogen atom or hydroxyl, alkyl, alkenyl, cycloalkyl, aryl, phenyl, acyl, amino, carbamoyl, sulfonyl or heterocyclic groups, R 1 and R 2 , or R 1 , R 2 , and R 3 may form a hetero nitrogen-containing ring by bonding to each other, R 5 , R 6 , R 7 and R 8 individually represent an alkyl, alkenyl, cycloalkyl, aryl, phenyl, heterocyclic or cyano group, an n is an integer from 1 to 5.
Claim 2
Dependent Claim
148 words
A photographic material having a silver halide emulsion layer coated on a support, which material contains an ion compound which is composed from a compound having a quaternary nitrogen atom as a cation and a boron compound as an anion wherein the ion pair compound is represented by the following formula: ##STR47## wherein R 1 , R 2 , R 3 , R 4 , R 9 and R 10 individually represent a hydrogen atom or hydroxyl, alkyl, alkenyl, cycloalkyl, aryl, phenyl, acyl, amino, carbamoyl, sulfonyl or heterocyclic groups, R 1 and R 2 , or R 1 , R 2 , and R 3 may form a hetero nitrogen-containing ring by bonding to each other, R 5 , R 6 , R 7 and R 8 individually represent an alkyl, alkenyl, cycloalkyl, aryl, phenyl, heterocyclic or cyano group, an n is an integer from 1 to 5.
Claim 3
Dependent Claim
19 words
A photographic material according to claim 1 wherein the ion pair compound is represented by the following formula: ##STR48##
Claim 4
Dependent Claim
13 words
A photograhic material according to claim 2 wherein n represents an integer 1.
Claim 5
Dependent Claim
24 words
A photographic material according to claim 1 wherein the compound having a quaternary nitrogen atom is a derivative of a nitrogen containing organic base.
Claim 6
Dependent Claim
21 words
A photographic material according to claim 4 wherein the nitrogen containing organic base is a primary, secondary or tertiary amine compound.
Claim 7
Dependent Claim
17 words
A photographic material according to claim 5 wherein the organic base is a primary amine developing agent.
Claim 8
Dependent Claim
24 words
A photographic material according to claim 6 wherein the ion pair compound is incorporated in an adjacent layer of the silver halide emulsion layer.
Claim 9
Dependent Claim
18 words
A photographic material according to claim 1 wherein the silver halide emulsion layer contains a dye forming coupler.
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) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |