US4174216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for image reproduction using multilayer photosensitive tonable element
Assignee: EIDP Inc
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Filing: 1978-06-12
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Granted: 1979-11-13
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Expires: 1998-06-12
Abstract
Abstract An image reproduction process which comprises exposing a multilayer element comprising (1) cover sheet, (2) photoadherent layer, and (3) tonable contiguous layer; stripping the cover sheet with either the exposed or unexposed areas of the photoadherent layer adhered thereto while the other areas of the photoadherent layer remain on the contiguous layer; and toning the areas of the contiguous layer from which the photoadherent layer were removed. Reverse and duplicate images can be produced.
Inventors
- 👤 Abraham B. Cohen
- 👤 Roxy N. Fan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:50
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/26; G03F7/34; G03F3/00; G03F3/10; G03F3/103
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
117 words
An image reproduction process which comprises (1) exposing imagewise to actinic radiation a peel apart photosensitive element comprising, in order, from top to bottom (a) a strippable cover sheet, (b) a photoadherent layer comprising a material with ethylenically unsaturated or benzophenone type groups, (c) a tonable organic contiguous layer, and optionally (d) a sheet support; (2) stripping the cover sheet from the element with either the exposed or unexposed areas of the photoadherent layer adhered to the cover sheet while the other areas of said photoadherent layer remain on said contiguous layer; and (3) toning by embedding colorant or particulate material into the areas of the contiguous layer from which areas of the photoadherent layer were removed.
Claim 2
Dependent Claim
117 words
An image reproduction process which comprises (1) exposing imagewise to actinic radiation a peel apart photosensitive element comprising, in order, from top to bottom (a) a strippable cover sheet, (b) a photoadherent layer comprising a material with ethylenically unsaturated or benzophenone type groups, (c) a tonable organic contiguous layer, and optionally (d) a sheet support; (2) stripping the cover sheet from the element with either the exposed or unexposed areas of the photoadherent layer adhered to the cover sheet while the other areas of said photoadherent layer remain on said contiguous layer; and (3) toning by embedding colorant or particulate material into the areas of the contiguous layer from which areas of the photoadherent layer were removed.
Claim 3
Dependent Claim
42 words
An image reproduction process according to claim 1 wherein the exposed areas of the photoadherent layer adhere to and are removed with the cover sheet when it is stripped, while the unexposed areas of the photoadherent layer remain on the contiguous layer.
Claim 4
Dependent Claim
12 words
A process according to claim 1 wherein toning comprises embedding metal powder.
Claim 5
Dependent Claim
15 words
An image reproduction process according to claim 1 wherein exposure is through the cover sheet.
Claim 6
Dependent Claim
14 words
An image reproduction process according to claim 1 wherein said photoadherent layer is colorless.
Claim 7
Dependent Claim
32 words
An image reproduction process according to claim 1 wherein said photoadherent layer is colored and toning is with a toner that is colorless or of a different color than the photoadherent layer.
Claim 8
Dependent Claim
42 words
An image reproduction process according to claim 1 wherein the unexposed areas of the photodherent layer adhere to and are removed with the cover sheet when it is stripped, while the exposed areas of the photoadherent layer remain on the contiguous layer.
Claim 9
Dependent Claim
18 words
An image reproduction process according to claim 1 comprising laminating said contiguous layer to a surface before exposing.
Claim 10
Dependent Claim
50 words
A process of producing a multilayer imagebearing element with a process of claim 8 comprising repeating said steps of laminating, exposing, stripping, and toning one or more times, each succeeding element having its tonable layer in surface to surface contact with the image-bearing surface of the last previously laminated element.
Claim 11
Dependent Claim
37 words
A process according to claim 1 wherein the element has a sheet support (d) on the surface of said contiguous layer opposite to the surface of the contiguous layer which is in contact with the photoadherent layer.
Claim 12
Dependent Claim
70 words
An image reproduction process comprising (1) exposing the element of claim 10 imagewise to actinic radiation, (2) stripping the cover sheet from the element with the exposed areas of the photoadherent layer adhered to the cover sheet while the unexposed areas of the photoadherent layer remain on said contiguous layer, and (3) toning the areas of the contiguous layer from which the exposed areas of the photoadherent layer were removed.
Claim 13
Dependent Claim
24 words
A process according to claim 11 comprising, before exposing, removing the sheet support and laminating the contiguous layer of the element to a surface.
Claim 14
Dependent Claim
94 words
A process according to claim 1 comprising, after toning, laminating the contiguous layer of an element which comprises, in order, from top to bottom (a) a strippable cover sheet, (b) a photoadherent layer comprising a material with ethylenically unsaturated or benzophenone type groups, and (c) a tonable organic contiguous layer, to the image-bearing surface of said element that has been toned, exposing the entire element nonimagewise to actinic radiation, stripping off the cover sheet of the laminated element with the photoadherent layer adhering thereto, and dusting the tonable contiguous layer with a particulate material.
Claim 15
Dependent Claim
17 words
A process according to claim 1 wherein the contiguous layer of said element contains an added colorant.
Claim 16
Dependent Claim
19 words
A process according to claim 14 wherein said colored contiguous layer has an optical density of at least 3.0.
Claim 17
Dependent Claim
14 words
A process according to claim 1 wherein the colorant or particulate material is dry.
Claim 18
Dependent Claim
19 words
A process according to claim 2 wherein after step (2) the stripped element is uniformly exposed to actinic radiation.
Claim 19
Dependent Claim
35 words
A process according to claim 9 wherein an additional element is laminated to the image bearing surface of the last previously laminated element and the multilayer image bearing element is uniformly exposed to actinic radiation.
Claim 20
Dependent Claim
12 words
A process according to claim 1 wherein the contiguous layer is tacky.
Claim 21
Dependent Claim
12 words
A process according to claim 19 wherein the contiguous layer is nonphotosensitive.
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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) | 1982-11-12 | 1983-05-14 | 1983-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-12 | 1987-05-14 | 1987-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-12 | 1991-05-14 | 1991-11-13 | $7700.00 | Window Closed / Lapsed |