US3897247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for selectively deforming a thermoplastic layer
Assignee: Hoechst AG
•
Filing: 1973-09-05
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Granted: 1975-07-29
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Expires: 1993-09-05
Abstract
Abstract This invention relates to the process for deforming a thermoplastic layer by forming an electrostatic image thereon and heating it, the improvement which comprises effecting deformation in a part of the layer only, and effecting the heating by a dry thermal treatment.
Inventors
- 👤 Gunther Schadlich
- 👤 Roland Moraw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:05
CPC Classifications
G; G03; G03G; G03G16/00; G03H; G03H2260/00; G03H2260/50; G03H2260/53; Y; Y10; Y10S; Y10S430/00; Y10S430/138
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
65 words
IN THE PROCESS FOR DEFORMING ONLY A SELECTED AREA OF AN IMAGE ON A THERMOPLASTIC LAYER APPLIED TO A SUPPORTING FILM BY HEATING SAID THERMOPLASTIC, THE IMPROVEMENT WHICH COMPRISES NON-SELECTIVELY HEATING THE THERMOPLASTIC LAYER FROM THE FRONT BY DRY THERMAL TREATMENT AND SIMULTANEOUSLY CONTACTING THE SUPPORTING FILM IN THE BACK OF THE NON-SELECTED AREA WITH A MATERIAL HAVING AN EVEN SURFACE AND GOOD HEAT CONDUCTIVITY.
Claim 2
Dependent Claim
65 words
IN THE PROCESS FOR DEFORMING ONLY A SELECTED AREA OF AN IMAGE ON A THERMOPLASTIC LAYER APPLIED TO A SUPPORTING FILM BY HEATING SAID THERMOPLASTIC, THE IMPROVEMENT WHICH COMPRISES NON-SELECTIVELY HEATING THE THERMOPLASTIC LAYER FROM THE FRONT BY DRY THERMAL TREATMENT AND SIMULTANEOUSLY CONTACTING THE SUPPORTING FILM IN THE BACK OF THE NON-SELECTED AREA WITH A MATERIAL HAVING AN EVEN SURFACE AND GOOD HEAT CONDUCTIVITY.
Claim 3
Dependent Claim
19 words
A process according to claim 1 in which heating is effected in a selected area bearing an electrostatic image.
Claim 4
Dependent Claim
19 words
A process according to claim 1 in which heating is effected in a selected area bearing a deformation image.
Claim 5
Dependent Claim
13 words
A process according to claim 1 in which the thremoplastic layer is photoconductive.
Claim 6
Dependent Claim
13 words
A process according to claim 1 in which the supporting film is non-electroconductive.
Claim 7
Dependent Claim
16 words
A process according to claim 1 in which deformation is effected in point- or line-wise areas.
Claim 8
Dependent Claim
14 words
A process according to claim 1 in which deformation is effected on micro cards.
Claim 9
Dependent Claim
13 words
A process according to claim 1 in which deformation is effected on holograms.
References Cited (Backward Citations)
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Cited
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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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |