Patent US4054722A successfully refreshed from Google Patents.
US4054722A
Expired / Lapsed
US
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Acyloxy substituted acrylate timing layers for color diffusion transfer
Assignee: Fujifilm Holdings Corp
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Filing: 1976-06-23
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Granted: 1977-10-18
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Expires: 1996-06-23
Abstract
Abstract A material for a color diffusion transfer photographic process, which possesses neutralizing means comprising the combination of a layer containing a polymer having a repeating unit represented by the following general formula (I): ##STR1## wherein R 1 represents a hydrogen atom or a methyl group, R 2 represents a hydrogen atom, an aliphatic hydrocarbon residue having 1 to 6 carbon atoms or an aryl group, and X represents an n+1 valent aliphatic hydrocarbon residue having 2 to 8 carbon atoms or an n+1 valent residue of the formula --A-O-- m A, wherein A represents an aliphatic hydrocarbon residue having 2 to 4 carbon atoms, and m and n each represents an integer of 1 to 5, and an acidic polymer layer.
Inventors
- 👤 Takashi Yoshida
- 👤 Shinji Sakaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:56
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/42; G03C8/52; G03C8/54
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
A material for a color diffusion transfer photographic process, which comprises a support and which possesses neutralizing means thereon comprising the combination of a timing layer containing a polymer having a repeating unit represented by the following general formula (I): ##STR10## where R 1 represents a hydrogen atom or a methyl group, R 2 represents a hydrogen atom, an aliphatic hydrocarbon residue having 1 to 6 carbon atoms or an aryl group, and X represents an n+l valent aliphatic hydrocarbon residue having 2 to 8 carbon atoms or an n+l valent residue of the formula --A--O m A, wherein A represents an aliphatic hydrocarbon residue having 2 to 4 carbon atoms, and m and n each represents an integer of 1 to 5, and an acidic polymer layer between said support and said timing layer.
Claim 2
Dependent Claim
135 words
A material for a color diffusion transfer photographic process, which comprises a support and which possesses neutralizing means thereon comprising the combination of a timing layer containing a polymer having a repeating unit represented by the following general formula (I): ##STR10## where R 1 represents a hydrogen atom or a methyl group, R 2 represents a hydrogen atom, an aliphatic hydrocarbon residue having 1 to 6 carbon atoms or an aryl group, and X represents an n+l valent aliphatic hydrocarbon residue having 2 to 8 carbon atoms or an n+l valent residue of the formula --A--O m A, wherein A represents an aliphatic hydrocarbon residue having 2 to 4 carbon atoms, and m and n each represents an integer of 1 to 5, and an acidic polymer layer between said support and said timing layer.
Claim 3
Dependent Claim
11 words
The material of claim 1, wherein said polymer is a homopolymer.
Claim 4
Dependent Claim
24 words
The material of claim 1, where in said polymer is a copolymer containing from about 10 to about 98 mol% of said repeating unit.
Claim 5
Dependent Claim
48 words
The material of claim 3, wherein said copolymer is a copolymer with a monomer selected from acrylic acid, acrylic acid esters, acrylamides, methacrylic acid, methacrylic acid esters, methacrylamides, allyl compounds, vinyl ethers, vinyl esters, vinyl heterocyclic compounds, styrenes, maleic acids, fumaric acids, itaconic acids, olefins and crotonic acids.
Claim 6
Dependent Claim
17 words
The material of claim 1 wherein said polymer has a molecular weight of about 2000 or more.
Claim 7
Dependent Claim
17 words
The material of claim 4 wherein said polymer has a molecular weight of from 100,000 to 1,000,000.
Claim 8
Dependent Claim
25 words
The material of claim 5 wherein said acidic polymer layer comprises an acidic polymer having a molecular weight of from about 10,000 to about 100,000.
Claim 9
Dependent Claim
21 words
The material of claim 7, wherein said acidic polymer layer has a thickness of from about 5 to about 30 μ.
Claim 10
Dependent Claim
27 words
The material of claim 8 wherein said timing layer containing said polymer having said repeating unit has a thickness of from about 0.5 to about 30 μ.
References Cited (Backward Citations)
US3847165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-17 | 1981-04-18 | 1981-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-17 | 1985-04-18 | 1985-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-17 | 1989-04-18 | 1989-10-18 | $7700.00 | Window Closed / Lapsed |