Patent US4121939A successfully refreshed from Google Patents.
US4121939A
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Color photographic light-sensitive material containing +-alkyl substituted hydroquinone
Assignee: Fujifilm Holdings Corp
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Filing: 1977-07-14
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Granted: 1978-10-24
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Expires: 1997-07-14
Abstract
Abstract A color photographic light-sensitive material comprising a support having thereon at least one layer of a silver halide photographic emulsion with the light-sensitive material containing at least one hydroquinone compound represented by the following general formula (I): ##STR1## wherein R 1 represents a hydrogen atom, ##STR2## or a precursor thereof.
Inventors
- 👤 Keiichi Adachi
- 👤 Akio Mitsui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:09
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/39212; G03C7/39216
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
50 words
A color photographic light-sensitive material comprising a support having thereon at least one layer of a silver halide photographic emulsion with the light-sensitive material containing at least one hydroquinone compound represented by the following general formula (I): ##STR11## wherein R 1 represents a hydrogen atom, ##STR12## or a precursor thereof.
Claim 2
Dependent Claim
50 words
A color photographic light-sensitive material comprising a support having thereon at least one layer of a silver halide photographic emulsion with the light-sensitive material containing at least one hydroquinone compound represented by the following general formula (I): ##STR11## wherein R 1 represents a hydrogen atom, ##STR12## or a precursor thereof.
Claim 3
Dependent Claim
35 words
The color photographic light-sensitive material of claim 1, wherein the silver halide photographic emulsion contains a dye image-forming coupler or is associated with a dye image-providing compound for use in the color diffusion transfer processes.
Claim 4
Dependent Claim
70 words
The color photographic light-sensitive material of claim 2, wherein the hydroquinone compound is present in an amount of about 0.1 to about 200% by weight to the amount of the dye image-forming coupler present in the photographic emulsion layer. 4. The color photographic light-sensitive material of claim 3, wherein the hydroquinone compound is present in an amount of 0.2 to 150% by weight to the amount of the dye image-forming
Claim 5
Dependent Claim
77 words
coupler present. 5. The color photographic light-sensitive material of claim 1, wherein the hydroquinone compound is present in said layer of said silver halide photographic emulsion, in a layer adjacent thereto or in an interlayer, wherein if only one silver halide photographic emulsion layer is present said hydroquinone compound if not present in a silver halide photographic emulsion layer is present in a layer adjacent thereto, whereas if more than one silver halide photographic emulsion layer is
Claim 6
Dependent Claim
43 words
present said hydroquinone compound may be present in said interlayer. 6. The color photographic light-sensitive material of claim 5, wherein said layer of the silver halide photographic emulsion is a layer of a blue-sensitive silver halide emulsion or a layer of a green-sensitive
Claim 7
Dependent Claim
21 words
silver halide emulsion layer. 7. The color photographic light-sensitive material of claim 5, wherein the hydroquinone compound is present in said
Claim 8
Dependent Claim
20 words
adjacent layer. 8. The color photographic light-sensitive material of claim 5, wherein the hydroquinone compound is present in said interlayer.
Claim 9
Dependent Claim
44 words
. The color photographic light-sensitive material of claim 1, wherein the hydroquinone compound is present in a layer adjacent the layer of said silver halide photographic emulsion or in an interlayer of the light-sensitive material in an amount of about 1 to about 1,000
Claim 10
Dependent Claim
25 words
mg/m 2 . 10. The color photographic light-sensitive material of claim 9, wherein the hydroquinone compound is present in an amount of 10 to 100
Claim 11
Dependent Claim
41 words
mg/m 2 . 11. The color photographic light-sensitive material of claim 1, wherein said color photographic light-sensitive material is a color diffusion transfer light-sensitive material and the hydroquinone compound is present in a layer adjacent the layer of said halide photographic
Claim 12
Dependent Claim
26 words
emulsion or in an interlayer in an amount of 0.2 to 3 g/m 2 . 12. The color photographic light-sensitive material of claim 11, wherein the
Claim 13
Dependent Claim
24 words
hydroquinone compound is present in an amount of 0.5 to 2 g/m 2 . 13. The color photographic light-sensitive material of claim 1, wherein
Claim 14
Dependent Claim
31 words
said hydroquinone compound is an oily material. 14. The color photographic light-sensitive material of claim 1, wherein said hydroquinone compound is added to said color photographic light-sensitive material without using a
Claim 15
Dependent Claim
16 words
solvent. 15. The color photographic light-sensitive material of claim 1, wherein said hydroquinone compound is ##STR13##
Claim 16
Dependent Claim
14 words
The color photographic light-sensitive material of claim 1, wherein said hydroquinone compound is ##STR14##
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) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |