Patent US4444866A successfully refreshed from Google Patents.
US4444866A
Expired / Lapsed
US
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Photographic light-sensitive material with forced oxidized carbon black
Assignee: Fujifilm Holdings Corp
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Filing: 1983-03-03
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Granted: 1984-04-24
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Expires: 2003-03-03
Abstract
Abstract Photographic light-sensitive materials particularly useful in connection with instant photography are disclosed. The disclosed photographic materials include films for instant photography which have a reduced image appearing time, a high Dmax and low Dmin. The disclosed materials include force-oxidized carbon black in liquid phase, which has a dispersibility of at least 4 in water.
Inventors
- 👤 Takeo Sakai
- 👤 Mitsugu Tanaka
- 👤 Shigetoshi Ono
- 👤 Seiji Suzuki
- 👤 Hirohisa Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:00
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/42; G03C8/52; G03C1/00; G03C1/76; G03C1/95; G03C8/44; G03C8/48
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
26 words
A photographic light-sensitive material containing carbon black force-oxidized in liquid phase, having a particle size of 0.03μ to 0.12μ and a dispersibility of at least 4.
Claim 2
Dependent Claim
26 words
A photographic light-sensitive material containing carbon black force-oxidized in liquid phase, having a particle size of 0.03μ to 0.12μ and a dispersibility of at least 4.
Claim 3
Dependent Claim
80 words
A photographic light-sensitive material comprising: a transparent support; an image-receiving layer on said support; a silver halide emulsion layer on said support, said silver halide emulsion layer being associated with a dye image-providing compound and a pressure-rupturable container retaining a processing solution; a layer containing carbon black force-oxidized in liquid phase positioned between said image-receiving layer and said silver halide emulsion layer, said carbon black having a particle size of 0.03μ to 0.12μ and a dispersibility of at least 4.
Claim 4
Dependent Claim
80 words
A photographic light-sensitive material comprising: a transparent support; an image-receiving layer on said support; a silver halide emulsion layer on said support, said silver halide emulsion layer being associated with a dye image-providing compound and a pressure-rupturable container retaining a processing solution; a layer containing carbon black force-oxidized in liquid phase positioned between said image-receiving layer and said silver halide emulsion layer, said carbon black having a particle size of 0.03μ to 0.12μ and a dispersibility of at least 4.
Claim 5
Dependent Claim
73 words
A photographic light-sensitive material comprising: a transparent support; an image-receiving layer on said support; a silver halide emulsion layer on said support, said silver halide emulsion layer being associated with a dye image-providing compound and a pressure-rupturable container retaining a processing solution; wherein carbon black force-oxidized in liquid phase is incorporated in said processing solution, said carbon black having a particle size of 0.03 to 0.12μ and a dispersibility of at least 4.
Claim 6
Dependent Claim
73 words
A photographic light-sensitive material comprising: a transparent support; an image-receiving layer on said support; a silver halide emulsion layer on said support, said silver halide emulsion layer being associated with a dye image-providing compound and a pressure-rupturable container retaining a processing solution; wherein carbon black force-oxidized in liquid phase is incorporated in said processing solution, said carbon black having a particle size of 0.03 to 0.12μ and a dispersibility of at least 4.
Claim 7
Dependent Claim
35 words
A wash-off relief image-forming light-sensitive material containing carbon black force-oxidized in liquid phase in an anti-halation layer, said carbon black having a particle size of 0.03μ to 0.12μ and a dispersibility of at least 4.
Claim 8
Dependent Claim
35 words
A wash-off relief image-forming light-sensitive material containing carbon black force-oxidized in liquid phase in an anti-halation layer, said carbon black having a particle size of 0.03μ to 0.12μ and a dispersibility of at least 4.
Claim 9
Dependent Claim
34 words
A pan-matrix film containing carbon black force-oxidized in liquid phase in a silver halide emulsion layer, said carbon black having a particle size of 0.03μ to 0.12μ and a dispersibility of at least 4.
Claim 10
Dependent Claim
34 words
A pan-matrix film containing carbon black force-oxidized in liquid phase in a silver halide emulsion layer, said carbon black having a particle size of 0.03μ to 0.12μ and a dispersibility of at least 4.
Claim 11
Dependent Claim
21 words
A photographic light-sensitive material as in claim 1, wherein said carbon black has a particle size of from 0.05 to 0.12μ.
Claim 12
Dependent Claim
21 words
A photographic light-sensitive material as in claim 3 wherein said carbon black has a particle size of from 0.05 to 0.12μ.
Claim 13
Dependent Claim
22 words
A wash-off relief image-forming light-sensitive material as in claim 4, wherein said carbon black has a particle size of 0.05 to 0.12μ.
Claim 14
Dependent Claim
20 words
A pan-matrix film as in claim 5, wherein said carbon black has a particle size of from 0.05 to 0.12μ.
Claim 15
Dependent Claim
33 words
A photographic light-sensitive material as in claim 2, wherein said force-oxidized carbon black is prepared by adding an oxidizing agent to an aqueous solution dispersion of the non-treated carbon black and then heating.
Claim 16
Dependent Claim
15 words
A photographic light-sensitive material as in claim 10 wherein said oxidizing agent is an hypohalogenite.
Claim 17
Dependent Claim
33 words
A photographic light-sensitive material as in claim 11, wherein said hypohalogenite is selected from the group consisting of sodium hypochlorite, sodium hypobromite, sodium hypoiodite, potassium hypochlorite, potassium hypobromite, potassium hypoiodite and calcium hypochlorite.
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) | 1987-04-24 | 1987-10-24 | 1988-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-24 | 1991-10-24 | 1992-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-24 | 1995-10-24 | 1996-04-24 | $7700.00 | Window Closed / Lapsed |