US3607264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image reproduction process involving photohardening and delamination
Assignee: EIDP Inc
•
Filing: 1967-11-22
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Granted: 1971-09-21
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Expires: 1987-11-22
Abstract
Abstract An image reproduction process in which an element having a support, a photohardenable layer, and an integral, laminated, adherent receptor sheet is (1) exposed, imagewise, to actinic radiation to harden the layer in exposed areas without hardening in the underexposed areas, and (2) delaminated at a temperature above 45* C., causing the unhardened areas of the layer to fail cohesively, whereby a stratum of the unhardened material adheres to the receptor sheet.
Inventors
- 👤 Jack Richard Celeste
- 👤 Victor Fu-Hua Chu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:00
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/26; G03F7/34
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
59 words
delaminating the cover sheet at a temperature of at least 55* C. and between the softening temperatures of the exposed and unexposed areas of the photohardenable layer, thereby causing material in the unexposed areas to fail cohesively and a stratum of the layer to adhere to said image-receptive cover sheet and the remaining strata to adhere to the support.
Claim 2
Dependent Claim
11 words
A process according to claim 1 wherein said layer is photopolymerizable.
Claim 3
Dependent Claim
43 words
A process according to claim 1 wherein said layer is photopolymerizable and contains (i) an addition polymerization initiator, (ii) at least one nongaseous, ethylenically unsaturated compound capable of forming a high polymer by addition polymerization, and (iii) a macromolecular organic polymer binding agent.
Claim 4
Dependent Claim
17 words
A process according to claim 1 wherein said support is a hydrophobic macromolecular organic polymer film base.
Claim 5
Dependent Claim
27 words
A process according to claim 1 wherein said photohardenable layer contains at least one nongaseous, ethylenically unsaturated compound capable of forming a high polymer by addition polymerization.
Claim 6
Dependent Claim
17 words
A process according to claim 1 wherein said cover sheet is a hydrophobic macromolecular organic polymer film.
Claim 7
Dependent Claim
23 words
A process according to claim 1 wherein the photohardenable layer is photopolymerizable and contains a crosslinkable acrylic ester as an addition polymerizable component.
Claim 8
Dependent Claim
28 words
A process according to claim 1 wherein the photohardenable layer is photopolymerizable and contains a crosslinkable acrylic ester as an addition polymerizable component and a polynuclear quinone initiator.
Claim 9
Dependent Claim
16 words
A process according to claim 1 wherein the photohardenable layer is photopolymerizable and contains pentaerythritol triacrylaTe.
Claim 10
Dependent Claim
17 words
A process according to claim 1 wherein the photohardenable layer is photopolymerizable and contains polyoxyethylated trimethylolpropane triacrylate.
Claim 11
Dependent Claim
20 words
A process according to claim 1 wherein the photohardenable layer is photocrosslinkable and contains an acrylated glycidyl methacrylate/methyl methacrylate copolymer.
Claim 12
Dependent Claim
26 words
A process as set forth in claim 1 wherein the exposed delaminated element is pressed against a receptor surface, and heated to thermally transfer unhardened areas.
Claim 13
Dependent Claim
18 words
A process as set forth in claim 12 wherein a colorant is applied to the thermally transferred image.
Claim 14
Dependent Claim
29 words
A process as set forth in claim 1, wherein after delaminating the cover sheet, colorant particles are applied to the surface of the image-bearing stratum on said cover sheet.
References Cited (Backward Citations)
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US3060026A
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US3198633A
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US3342593A
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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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |