Patent US4278757A successfully refreshed from Google Patents.
US4278757A
Expired / Lapsed
US
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Silver halide photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1979-08-10
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Granted: 1981-07-14
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Expires: 1999-08-10
Abstract
Abstract A silver halide photographic light-sensitive material having a hydrophilic organic colloid layer containing a dispersion of a substantially water-insoluble photographic additive dissolved in a phosphoric acid ester represented by the following general formula (I): ##STR1## wherein R 1 represents a saturated alicyclic group; and R 2 and R 3 , which may be the same or different, each represents a saturated alicyclic group, an alkyl group or an aryl group.
Inventors
- 👤 Yasuo Mukunoki
- 👤 Masakazu Yoneyama
- 👤 Jiro Yamaguchi
- 👤 Hideki Naito
- 👤 Jun Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:22
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/388; G03C7/3885; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/117; C07F9/12
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
125 words
In a silver halide photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer and at least one hydrophilic organic colloid layer, said silver halide emulsion layer being the same as or different than said hydrophilic colloid layer and at least one of said silver halide emulsion layer or said hydrophilic organic colloid layer containing a dispersion of a substantially water-insoluble photographic additive dissolved in a solvent, the improvement wherein said solvent comprises a phosphoric acid ester represented by the following general formula (I): ##STR8## wherein R 1 represents a saturated alicyclic group; and R 2 and R 3 , which may be the same or different, each represents a saturated alicyclic group, an alkyl group or an aryl group.
Claim 2
Dependent Claim
125 words
In a silver halide photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer and at least one hydrophilic organic colloid layer, said silver halide emulsion layer being the same as or different than said hydrophilic colloid layer and at least one of said silver halide emulsion layer or said hydrophilic organic colloid layer containing a dispersion of a substantially water-insoluble photographic additive dissolved in a solvent, the improvement wherein said solvent comprises a phosphoric acid ester represented by the following general formula (I): ##STR8## wherein R 1 represents a saturated alicyclic group; and R 2 and R 3 , which may be the same or different, each represents a saturated alicyclic group, an alkyl group or an aryl group.
Claim 3
Dependent Claim
23 words
The silver halide photographic light-sensitive material of claim 1, wherein R 1 represents a saturated alicyclic group having 5 or more carbon atoms.
Claim 4
Dependent Claim
39 words
The silver halide photographic light-sensitive material of claim 2, wherein said saturated alicyclic group is substituted with an alkyl group, an aryl group, an alkoxy group, a cycloalkyl group, an alkoxyalkyl group, an acyloxy group or a halogen atom.
Claim 5
Dependent Claim
46 words
The silver halide photographic light-sensitive material of claim 1, wherein R 2 and R 3 each represents a saturated alicyclic group having 5 or more carbon atoms, an alkyl group having 1 to 30 carbon atoms or an aryl group having 6 to 24 carbon atoms.
Claim 6
Dependent Claim
40 words
The silver halide photographic light-sensitive material of claim 4, wherein said saturated alicyclic group is substituted with an alkyl group, an aryl group, an alkoxy group, a cycloalkyl group, an alkoxy alkyl group, an acyloxy group or a halogen atom.
Claim 7
Dependent Claim
35 words
The silver halide photographic light-sensitive material of claim 4, wherein said alkyl group is an alkyl group substituted with an alkoxy group, a halogen atom, an aryl group, an acyloxy group or an aryloxy group.
Claim 8
Dependent Claim
29 words
The silver halide photographic light-sensitive material of claim 4, wherein said aryl group is an aryl group substituted with an alkyl group, an alkoxy group or a halogen atom.
Claim 9
Dependent Claim
29 words
The silver halide photographic light-sensitive material of claims 2 or 4, wherein said saturated alicyclic group for R 1 , R 2 or R 3 is a cyclohexyl group.
Claim 10
Dependent Claim
64 words
The silver halide photographic light-sensitive material of claim 1, wherein said substantially water-insoluble photographic additive is a photographic coupler, an antioxidant, a fade preventing agent, a hardener, an oil-soluble filter dye, an oil-soluble ultraviolet absorbing agent, a fluorescent brightening agent, a development inhibitor releasing compound, a developing agent, a diffusible dye releasing coupler, a diffusible dye releasing redox compound or a dye developing agent.
Claim 11
Dependent Claim
31 words
The silver halide photographic light-sensitive material of claim 9, wherein said substantially water-insoluble photographic additive is a photographic coupler, an ultraviolet absorbing agent, a fade preventing agent or a DRR compound.
Claim 12
Dependent Claim
19 words
The silver halide photographic light-sensitive material of claim 9, wherein said substantially water-insoluble photographic additive is a photographic coupler.
Claim 13
Dependent Claim
36 words
The silver halide photographic light-sensitive material of claim 1, wherein said phosphoric acid ester is present in an amount of 0.05 to 15 parts by weight per part by weight of said substantially water-insoluble photographic additive.
Claim 14
Dependent Claim
46 words
The silver halide photographic light-sensitive material of claim 1, wherein said substantially water-insoluble photographic additive is a photographic coupler and said dispersion of said photographic coupler in said phosphoric acid ester represented by the general formula (I) is present in a light-sensitive silver halide emulsion layer.
Claim 15
Dependent Claim
20 words
The silver halide photographic light-sensitive material of claim 1, wherein said hydrophilic organic colloid layer is a gelatin layer. PG,44
Claim 16
Dependent Claim
30 words
The silver halide photographic light-sensitive material of claim 1, wherein the total number of carbon atoms in R 1 , R 2 and R 3 is about 12 to 50.
Claim 17
Dependent Claim
25 words
The silver halide photographic light-sensitive material of claim 1, wherein each of R 1 , R 2 and R 3 represents a saturated alicyclic group.
Claim 18
Dependent Claim
16 words
The silver halide photographic light-sensitive material of claim 16, wherein said alicyclic group is alkyl substituted.
Claim 19
Dependent Claim
15 words
The silver halide photographic light-sensitive material of claim 16, wherein said alicyclic group is unsubstituted.
Claim 20
Dependent Claim
17 words
The silver halide photographic light-sensitive material of claim 18, wherein said alicyclic group is a cyclohexyl group.
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) | 1984-07-13 | 1985-01-12 | 1985-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-13 | 1989-01-12 | 1989-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-13 | 1993-01-12 | 1993-07-14 | $7700.00 | Window Closed / Lapsed |