Patent US4547459A successfully refreshed from Google Patents.
US4547459A
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US
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Photographic silver halide materials containing a high speed coating aid
Assignee: Fujifilm Holdings Corp
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Filing: 1981-10-07
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Granted: 1985-10-15
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Expires: 2001-10-07
Abstract
Abstract A photographic silver halide light-sensitive material is disclosed comprising a support and at least one silver halide emulsion layer on the support, wherein the emulsion layer or another hydrophilic organic colloid layer contains a compound represented by formula (I) <IMAGE> (I) wherein R1 and R2 represent the same or different groups and are each hydrogen, an alkyl group, or an aryl group, or R1 and R2 can be linked together to form an N-containing heterocyclic ring, provided that R1 and R2 are not both hydrogens; Rf is a fluorine-containing group; one of X and Y is a hydrogen atom and another is a -SO3M group wherein M is a cation. A method for high speed coating a photographic emulsion or another hydrophilic organic colloid composition is also disclosed wherein the improvement comprises a compound represented by formula (I) to the emulsion or the composition.
Inventors
- 👤 Takayoshi Kamio
- 👤 Kunihiko Ohga
- 👤 Yasuo Mukunoki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:06
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/38; G03C1/385
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
117 words
A photographic silver halide light-sensitive material comprising a support and at least one silver halide emulsion layer on the support, wherein the emulsion layer or another hydrophilic organic colloid layer contains a compound represented by formula (I) ##STR7## wherein R 1 and R 2 represent the same or different groups and are each hydrogen, an alkyl group, or an aryl group, or R 1 and R 2 can be linked together to form an N-containing heterocyclic ring, provided that R 1 and R 2 are not both hydrogens; R f is a fluorine-containing alkyl group; one of X and Y is a hydrogen atom and another is a --SO 3 M group wherein M is a cation.
Claim 2
Dependent Claim
117 words
A photographic silver halide light-sensitive material comprising a support and at least one silver halide emulsion layer on the support, wherein the emulsion layer or another hydrophilic organic colloid layer contains a compound represented by formula (I) ##STR7## wherein R 1 and R 2 represent the same or different groups and are each hydrogen, an alkyl group, or an aryl group, or R 1 and R 2 can be linked together to form an N-containing heterocyclic ring, provided that R 1 and R 2 are not both hydrogens; R f is a fluorine-containing alkyl group; one of X and Y is a hydrogen atom and another is a --SO 3 M group wherein M is a cation.
Claim 3
Dependent Claim
46 words
A photographic silver halide light-sensitive material as in claim 1, wherein R 1 and R 2 are each hydrogen, a substituted or unsubstituted alkyl group containing from 1 to 30 carbon atoms, or a substituted or unsubstituted aryl group containing from 6 to 24 carbon atoms.
Claim 4
Dependent Claim
28 words
A photographic silver halide light-sensitive material as in claim 1, wherein R 1 and R 2 are linked together to form a piperidine ring or an N-alkylpiperazine ring.
Claim 5
Dependent Claim
33 words
A photographic silver halide light-sensitive material as in claim 1, 2, or 3, wherein R f is an alkyl group containing 4 or more fluorine atoms and from 3 to 30 carbon atoms.
Claim 6
Dependent Claim
20 words
A photographic silver halide light-sensitive material as in claim 4, wherein the substituents of R f is solely fluorine atoms.
Claim 7
Dependent Claim
37 words
A photographic silver halide light-sensitive material as in claim 1, 2, or 3, wherein M is selected from the group consisting of hydrogen, an alkali metal cation, an alkaline earth metal cation, ammonium, and an amino group.
Claim 8
Dependent Claim
34 words
A photographic silver halide light-sensitive material as in claim 4, wherein M is selected from the group consisting of hydrogen, an alkali metal cation, an alkaline earth metal cation, ammonium, and an amino group.
References Cited (Backward Citations)
US4056396A
Cited
US4347308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-14 | 1997-04-15 | 1997-10-15 | $7700.00 | Window Closed / Lapsed |