Patent US3770439A successfully refreshed from Google Patents.
US3770439A
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US
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Polymeric mordant in color diffusion transfer image receiving layer
Assignee: Polaroid Corp
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Filing: 1972-01-03
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Granted: 1973-11-06
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Expires: 1992-01-03
Abstract
Abstract A photographic product having an image pattern receiving layer which comprises a polymer of the formula: WHERE EACH R1 can be the same or different substituent chosen from the group consisting of hydrogen, alkyl, alkoxy and alkanol and X is an anion radical.
Inventors
- 👤 L Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:27
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/42; G03C8/52; G03C8/56; Y; Y10; Y10S; Y10S430/00; Y10S430/142
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
41 words
A receiving element of claim 1 wherein said polymeric layer comprises a mixture of a polymer of Formula A and a polymeric material chosen from the group consisting of the polymers of polyvinylalcohol, polyacrylamide, polyvinyl pyridine, polyhydroxyalkylcellulose and mixtures of these.
Claim 2
Dependent Claim
38 words
A receiving element of claim 2 wherein the concentration of the polymer Formula A in said mixture ranges from about 8 percent by weight of the total polymeric materials in the mixture to about 50 percent by weight.
Claim 3
Dependent Claim
40 words
A receiving element of claim 3 wherein said polymeric layer comprises a mixture of a polymer of Formula A and a polymeric material chose from the group consisting of the polymers of polyacrylamide, poly-4-vinyl pyridine, polyhydroxyalkylcellulose and mixtures of these.
Claim 4
Dependent Claim
19 words
A receiving element of claim 3 wherein said polymeric material of Formula A is a polyvinylbenzyl trimethyl ammonium chloride.
Claim 5
Dependent Claim
30 words
A receiving element of claim 3 wherein said polymeric material of Formula A is a polyvinylbenzyl trimethyl ammonium chloride and said mixture of polymeric maTerials includes polyacrylamide and poly-4-vinyl pyridine.
Claim 6
Dependent Claim
87 words
A diffusion transfer photographic product having as essential elements thereof a photosensitive system comprising at least one selectively sensitized silver halide layer integrated with a dye image providing material, a processing composition which can provide a diffusion transfer image pattern after exposure of said photosensitive system and an image receiving element arranged to receive said diffusion transfer image pattern, said image receiving element comprising a composite structure which comprises a support and an alkali permeable and dyeable polymeric layer comprising a polymer conforming to Formula A below:
Claim 7
Dependent Claim
34 words
A diffusion transfer product of claim 7 wherein said photosensitive system comprises a blue, green and red sensitive silver halide layer each integrated with a yellow, a magenta and cyan dye image providing material.
Claim 8
Dependent Claim
43 words
A diffusion transfer product of claim 10 wherein the concentration of said compound of Formula A in said mixture of polymeric materials comprising said dyeable layer ranges from about 8 percent by weight of said polymeric materials to about 50 percent by weight.
Claim 9
Dependent Claim
41 words
A diffusion transfer product of claim 7 wherein said polymeric layer comprises a mixture of polymer of Formula A and a polymeric material chosen from the group consisting of the polymers of polyvinylalcohol, polyacrylamide, polyvinyl pyridine, polyhydroxyalkylcellulose and mixtures of these.
Claim 10
Dependent Claim
41 words
A diffusion transfer product of claim 10 wherein said polymeric layer comprises a mixture of a polymer of Formula A and a polymeric material chosen from the group consisting of the polymers of polyacrylamide, poly-4-vinyl pyridine, polyhydroxyalkylcellulose and mixtures of these.
Claim 11
Dependent Claim
24 words
A diffusion transfer product of claim 10 wherein said polymeric material of Formula A in said dyeable layer is a polyvinylbenzyl trimethyl ammonium chloride.
Claim 12
Dependent Claim
35 words
A diffusion transfer product of claim 10 wherein said polymeric material of Formula A in said dyeable layer is a polyvinyl trimethyl ammonium chloride and said mixture of polymeric materials includes polyacrylamide and poly-4-vinyl pyridine.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |