Patent US4547452A successfully refreshed from Google Patents.
US4547452A
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Color diffusion transfer photographic element with sufinic acid
Assignee: Fujifilm Holdings Corp
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Filing: 1983-09-29
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Granted: 1985-10-15
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Expires: 2003-09-29
Abstract
Abstract A color diffusion transfer photographic element containing a compound having a sulfinic acid group or a slat thereof is disclosed. The element is comprised of a photosensitive element and an alkaline processing composition element. The sufinic acid group or a salt thereof includes a compound represented by the general formula (Y-SO 2 ) n M wherein M is a hydrogen atom, an alkyl metal atom, an alkaline earth metal atom, an ammonium group, or an organic base; Y is an alkyl group, a substituted alkyl group, an aryl group or a substituted aryl group, and n is 1 or 2. By utilizing the compound within the processing solution it is possible to prevent the deterioration of processing composition which occurs when the material is stored for a long period of time.
Inventors
- 👤 Ichizo Toya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:57
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/32; G03C8/36
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
46 words
A color diffusion transfer photographic element comprising at least one light-sensitive element containing a silver halide emulsion layer and an alkaline processing composition element, said alkaline processing composition element containing a compound which is an aliphatic sulfinic acid, an aromatic sulfinic acid or a salt thereof.
Claim 2
Dependent Claim
46 words
A color diffusion transfer photographic element comprising at least one light-sensitive element containing a silver halide emulsion layer and an alkaline processing composition element, said alkaline processing composition element containing a compound which is an aliphatic sulfinic acid, an aromatic sulfinic acid or a salt thereof.
Claim 3
Dependent Claim
24 words
A color diffusion transfer photographic element as claimed in claim 1, wherein the silver halide emulsion layer is associated with a dye image-providing material.
Claim 4
Dependent Claim
69 words
A color diffusion transfer photographic element as claimed in claim 1, wherein the compound is represented by the general formula (I): (Y-SO.sub.2).sub.n M (I) wherein M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, an organic base or an ammonium group, Y represents an alkyl group, a substituted alkyl group, an aryl group, or a substituted aryl group, and n is 1 or 2.
Claim 5
Dependent Claim
61 words
A color diffusion transfer photographic element as claimed in claim 1, wherein said light-sensitive element further comprises a mordant layer (dye image-receiving layer) and said silver halide emulsion layer is associated with a dye image-providing material, and wherein said alkaline processing composition element comprises a container containing an alkaline processing composition, and wherein said photographic element further comprises a cover sheet.
Claim 6
Dependent Claim
76 words
A color diffusion transfer photographic element as claimed in claim 1, wherein the photographic element contains a cover sheet having a neutralizing system, the light-sensitive element further comprises a support having thereon at least a mordant layer and said silver halide emulsion layer is associated with a dye image-providing material, and the alkaline processing composition element comprises a rupturable container having an alkaline processing composition and is juxtaposed between the light-sensitive element and the cover sheet.
Claim 7
Dependent Claim
21 words
A color diffusion transfer photographic element as claimed in claim 4, wherein the dye image-providing material is a dye-releasing redox compound.
Claim 8
Dependent Claim
25 words
A color diffusion transfer photographic element as claimed in claim 5, wherein the cover sheet comprises a support having thereon at least a neutralizing layer.
Claim 9
Dependent Claim
43 words
A color diffusion transfer photographic element as claimed in claim 1, wherein the photographic element further comprises a support and a dye image-receiving element comprising at least a mordant layer, and the silver halide emulsion layer is associated with a dye image-providing material.
Claim 10
Dependent Claim
83 words
A color diffusion transfer photographic element as claimed in claim 1, wherein the photographic element contains a dye-image receiving element comprising a support having thereon at least a mordant layer, the light-sensitive element further comprises a support having thereon said silver halide emulsion layer, said silver halide emulsion layer is associated with a dye image-providing material, and the alkaline processing composition element comprises a rupturable container containing an alkaline processing composition and is juxtaposed between the light-sensitive element and the dye image-receiving element.
Claim 11
Dependent Claim
32 words
A color diffusion transfer photographic element as claimed in claim 8, wherein the dye image-receiving element comprises a support having thereon at least a neutralizing layer, and at least a mordant layer.
Claim 12
Dependent Claim
28 words
A color diffusion transfer photographic element as claimed in claim 1, wherein the alkaline processing composition element contains an alkaline processing composition which is substantially free from oxygen.
Claim 13
Dependent Claim
20 words
A color diffusion transfer photographic element as claimed in claim 1, further containing a 3-pyrazolidinone series compound or precursor thereof.
Claim 14
Dependent Claim
24 words
A color diffusion transfer photographic element as claimed in claim 1, wherein a 3-pyrazolidinone series compound is incorporated in the alkaline processing composition element.
Claim 15
Dependent Claim
22 words
A color diffusion transfer photographic element as claimed in claim 1, further containing an aminophenol series compound or a hydroquinone series compound.
Claim 16
Dependent Claim
32 words
A color diffusion transfer photographic element, as claimed in claim 3, wherein Y is an alkyl group, a substituted alkyl group containing 5 to 30 carbon atoms or a substituted group thereof.
Claim 17
Dependent Claim
25 words
A color diffusion transfer photographic element as claimed in claim 3, wherein Y is a naphthyl group, a phenyl group or a substituted group thereof.
Claim 18
Dependent Claim
21 words
A color diffusion transfer photographic element as claimed in claim 3, wherein M is a sodium atom or a potassium atom.
Claim 19
Dependent Claim
17 words
A color diffusion transfer photographic element as claimed in claim 3, wherein M represents an ammonium group.
Claim 20
Dependent Claim
17 words
A color diffusion transfer photographic element as claimed in claim 3, wherein M represents a hydrogen atom.
Claim 21
Dependent Claim
15 words
A color diffusion transfer photographic element as claimed in claim 3, wherein n is 1.
Claim 22
Dependent Claim
28 words
A color diffusion transfer photographic element as claimed in claim 1, wherein the compound in the alkaline processing composition element is selected from the group consisting of: ##STR6##
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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 |