US4054458A
Expired / Lapsed
US
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Gelatino silver halide photosensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1975-09-12
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Granted: 1977-10-18
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Expires: 1995-09-12
Abstract
Abstract A practical, useful gelatino silver halide photo-sensitive material having incorporated therein a compound represented by the following formula: ##STR1## wherein R 1 , R 2 and R 3 each represent a hydroxyl group, a hydroxylamino group, an amino group, an alkylamino group of from 1-6 carbon atoms, said alkyl group of said alkylamino group capable of being substituted by a member selected from the group consisting of a hydroxy group, a dialkylamino group of from 2 to 8 carbon atoms and an alkoxy group of from 1 to 4 carbon atoms, an arylamino group, said arylamino group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group and a halogen atom, an alkoxyl group of from 1 to 6 carbon atoms, an aryloxy group, said aryloxy group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group, and a halogen atom, an alkyl group of from 1 to 6 carbon atoms, an aryl group, said aryl group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group, and a halogen atom, or a halogen atom, said compound represented by the above described formula containing no more than one group which is active to gelatin, with the proviso that if R 1 , R 2 or R 3 is a halogen atom, no more than one of said R 1 , R 2 and R 3 can be a halogen atom.
Inventors
- 👤 Katsuhiko Ohtani
- 👤 Yosuke Nakajima
- 👤 Reiichi Ohi
- 👤 Tokiharu Kondo, deceased
- 👤 legal representative by Yoshiharu Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:15
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/30; G03C1/305; G03C1/08; G03C1/10; G03C1/28
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
329 words
A gelatino silver halide photo-sensitive emulsion which comprises, a silver halide emulsion sensitized to its maximum sensitivity by conventional chemical sensitization containing a sensitizing effective amount of a sensitizing compound represented by the following formula: ##STR4## wherein R 1 , R 2 and R 3 each represent a hydroxyl group, a hydroxylamino group, an amino group, an alkylamino group of from 1-6 carbon atoms, said alkyl group of said alkylamino group capable of being substituted by a member selected from the group consisting of a hydroxy group, a dialkylamino group of from 2 to 8 carbon atoms and an alkoxy group of from 1 to 4 carbon atoms, an arylamino group, said arylamino group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group and a halogen atom, an alkoxy group of from 1 to 6 carbon atoms, an aryloxy group, said aryloxy group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group, and a halogen atom, an alkyl group from 1 to 6 carbon atoms, an aryl group, said aryl group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group, and a halogen atom, or a halogen atom, said compound represented by the above described formula containing no more than one group which is active to gelatin, with the proviso that if R 1 , R 2 or R 3 is a halogen atom, no more than one of said R 1 , R 2 and R 3 can be a halogen atom, and an organic hardening agent.
Claim 2
Dependent Claim
329 words
A gelatino silver halide photo-sensitive emulsion which comprises, a silver halide emulsion sensitized to its maximum sensitivity by conventional chemical sensitization containing a sensitizing effective amount of a sensitizing compound represented by the following formula: ##STR4## wherein R 1 , R 2 and R 3 each represent a hydroxyl group, a hydroxylamino group, an amino group, an alkylamino group of from 1-6 carbon atoms, said alkyl group of said alkylamino group capable of being substituted by a member selected from the group consisting of a hydroxy group, a dialkylamino group of from 2 to 8 carbon atoms and an alkoxy group of from 1 to 4 carbon atoms, an arylamino group, said arylamino group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group and a halogen atom, an alkoxy group of from 1 to 6 carbon atoms, an aryloxy group, said aryloxy group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group, and a halogen atom, an alkyl group from 1 to 6 carbon atoms, an aryl group, said aryl group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group, and a halogen atom, or a halogen atom, said compound represented by the above described formula containing no more than one group which is active to gelatin, with the proviso that if R 1 , R 2 or R 3 is a halogen atom, no more than one of said R 1 , R 2 and R 3 can be a halogen atom, and an organic hardening agent.
Claim 3
Dependent Claim
82 words
The gelatino silver halide photo-sensitive emulsion as claimed in claim 1 wherein the alkylamino group is methylamino, dimethylamino, ethylamino, diethylamino, propylamino or butylamino; wherein the substituted alkylamino group is hydroxyalkylamino; wherein the arylamino group is phenylamino or naphthylamino; wherein the alkoxyl group is methoxy, ethoxy or propoxy; wherein the aryloxy group is phenoxy or naphthoxy; wherein the alkyl group is methyl, ethyl or propyl; wherein the aryl group is phenyl or naphthyl; and wherein the halogen is chlorine, bromine fluorine or iodine.
Claim 4
Dependent Claim
23 words
The gelatino silver halide photo-sensitive emulsion as claimed in claim 1 wherein the sensitizing compound is selected from the group consisting of: ##STR5##
Claim 5
Dependent Claim
30 words
The gelatino silver halide photo-sensitive emulsion as claimed in claim 1 wherein the amount of hardening agent varies from 0.5 milli mole to 10 milli mole per Kg of emulsion.
Claim 6
Dependent Claim
29 words
The gelatino silver halide photo-sensitive emulsion as claimed in claim 1 wherein the amount of said compound varies from 0.05g. to 0.5g. per milli mole of said hardening agent.
Claim 7
Dependent Claim
31 words
The gelatino silver halide photo-sensitive emulsion as claimed in claim 1, wherein the amount of said sensitizing compound ranges from about 0.01g. to about 10.0g. per mole of silver halide present.
Claim 8
Dependent Claim
26 words
A gelatino silver halide photo-sensitive material comprising a support having thereon at least one layer containing the silver halide photo-sensitive emulsion as claimed in claim 1.
Claim 9
Dependent Claim
18 words
The gelatino silver halide photo-sensitive emulsion as claimed in claim 1, wherein said hardening agent is dimethylol urea.
Claim 10
Dependent Claim
17 words
The gelatino silver halide photo-sensitive emulsion as claimed in claim 8, werein said sensitizing compound is ##STR6##
Claim 11
Dependent Claim
17 words
The gelatino silver halide photo-sensitive emulsion as claimed in claim 8, wherein said sensitizing compound is ##STR7##
Claim 12
Dependent Claim
17 words
The gelatino silver halide photo-sensitive emulsion as claimed in claim 8, wherein said sensitizing compound is ##STR8##
Claim 13
Dependent Claim
17 words
The gelatino silver halide photo-sensitive emulsion as claimed in claim 8, wherein said sensitizing compound is ##STR9##
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) | 1980-10-17 | 1981-04-18 | 1981-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-17 | 1985-04-18 | 1985-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-17 | 1989-04-18 | 1989-10-18 | $7700.00 | Window Closed / Lapsed |