US4605608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image-receiving element with crosslinked hydrophilic polymer containing processing composition
Assignee: Polaroid Corp
•
Filing: 1985-09-23
•
Granted: 1986-08-12
•
Expires: 2005-09-23
Abstract
Abstract An image-receiving element for use in a diffusion transfer process comprising a transparent support carrying an image-receiving layer and a hydrogel comprising a hydrophilic polymer layer cross-linked by ionizing radiation, said polymer layer containing aqueous alkaline photographic processing composition.
Inventors
- 👤 Julian G. Bullitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:16
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/32; G03C8/34; G03C8/24; G03C8/26; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
34 words
An image-receiving element for diffusion transfer processing which comprises a support carrying an image-receiving layer and a hydrogel comprising a hydrophilic polymer cross-linked by ionizing radiation, said hydrogel containing aqueous alkaline photographic processing composition.
Claim 2
Dependent Claim
34 words
An image-receiving element for diffusion transfer processing which comprises a support carrying an image-receiving layer and a hydrogel comprising a hydrophilic polymer cross-linked by ionizing radiation, said hydrogel containing aqueous alkaline photographic processing composition.
Claim 3
Dependent Claim
28 words
The product of claim 1 which includes an opaque layer and a reflective layer and said hydrogel comprises the binder for said opaque layer and said reflective layer.
Claim 4
Dependent Claim
13 words
The product of claim 1 wherein said image-receiving layer includes a dye mordant.
Claim 5
Dependent Claim
13 words
The product of claim 1 wherein said image-receiving layer includes silver precipitating nuclei.
Claim 6
Dependent Claim
10 words
The product of claim 1 wherein said support is transparent.
Claim 7
Dependent Claim
10 words
The product of claim 1 wherein said support is opaque.
Claim 8
Dependent Claim
11 words
The product of claim 1 wherein said polymer is polyethylene oxide.
Claim 9
Dependent Claim
12 words
The product of claim 1 wherein said processing composition has a pH≧12.
Claim 10
Independent Claim
62 words
A method for forming an image-receiving element for use in a diffusion transfer process which comprises the steps of (a) coating a transparent support with an image-receiving layer and a hydrophilic polymer; (b) gelling said polymer to form a hydrogel by subjecting said polymer to sufficient ionizing radiation to form said hydrogel; and (c) imbibing aqueous photographic processing composition into said hydrogel.
Claim 11
Independent Claim
62 words
A method for forming an image-receiving element for use in a diffusion transfer process which comprises the steps of (a) coating a transparent support with an image-receiving layer and a hydrophilic polymer; (b) gelling said polymer to form a hydrogel by subjecting said polymer to sufficient ionizing radiation to form said hydrogel; and (c) imbibing aqueous photographic processing composition into said hydrogel.
Claim 12
Independent Claim
109 words
A method for forming a diffusion transfer image which comprises the steps of (a) exposing a photosensitive element comprising a first support carrying at least a first photosensitive silver halide emulsion layer; (b) superposing an image-receiving element to the outermost layer of said photosensitive element; said image-receiving element comprising a second support carrying an image-receiving layer and a hydrogel, said hydrogel comprising a hydrophilic polymer cross-linked with ionizing radiation and an aqueous alkaline photographic processing composition; whereby a sufficient quantity of said processing composition is absorbed by said photosensitive element to develop said photosensitive silver halide layer, and transferring an imagewise distribution of image-forming material to said image-receiving layer.
Claim 13
Independent Claim
109 words
A method for forming a diffusion transfer image which comprises the steps of (a) exposing a photosensitive element comprising a first support carrying at least a first photosensitive silver halide emulsion layer; (b) superposing an image-receiving element to the outermost layer of said photosensitive element; said image-receiving element comprising a second support carrying an image-receiving layer and a hydrogel, said hydrogel comprising a hydrophilic polymer cross-linked with ionizing radiation and an aqueous alkaline photographic processing composition; whereby a sufficient quantity of said processing composition is absorbed by said photosensitive element to develop said photosensitive silver halide layer, and transferring an imagewise distribution of image-forming material to said image-receiving layer.
Claim 14
Dependent Claim
25 words
The method of claim 10 wherein said silver halide layer has dye image-forming material associated therewith and said image-receiving layer is a dye image-receiving layer.
Claim 15
Dependent Claim
21 words
The method of claim 10 wherein said processing composition includes a silver solvent and said image-receiving layer includes silver precipitating nuclei.
Claim 16
Dependent Claim
22 words
The method of claim 10 wherein said image-receiving element includes an opaque and a reflective layer and said second support is transparent.
Claim 17
Dependent Claim
23 words
The method of claim 10 which includes the step of stripping said image-receiving element from said photosensitive element subsequent to subtantial image formation.
References Cited (Backward Citations)
US2558857A
Cited
US3345165A
Cited
GB1121277A
Cited
US3615482A
Cited
US3647464A
Cited
US3689272A
Cited
US3907563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-11 | 1990-02-10 | 1990-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-11 | 1994-02-10 | 1994-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-11 | 1998-02-10 | 1998-08-12 | $7700.00 | Window Closed / Lapsed |