US3978247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer recording process
Assignee: RCA Corp
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Filing: 1974-01-28
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Granted: 1976-08-31
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Expires: 1994-01-28
Abstract
Abstract A method of transfer recording comprising selectively irradiating a binderless dry film consisting essentially of a dye or pigment capable of absorbing energy and being vaporized without decomposition.
Inventors
- 👤 Robert Stewart Braudy
- 👤 Hamilton Harvey Roberts, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:53
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38207; D; D06; D06P; D06P5/00; D06P5/003; D06P5/004; G; G11; G11B; G11B7/00; G11B7/004; G11B7/0045; G11B7/24; G11B7/241; G11B7/242; G11B7/244; G11B7/246; G11B7/245; G11B7/252; G11B7/257; G11B7/2572; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10S430/00; Y10S430/165
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
145 words
In a method of recording which comprises selectively irradiating with a modulated beam of electromagnetic energy one surface of a carrier film having on its opposite surface on energy transferable colorant coating so as to cause the transferable coating to vaporize and deposit on a surface of an adjacent, spaced recording element, the improvement which comprises employing as said colorant coating a binderless dry film consisting essentially of a dye of pigment of low thermal conductivity, low density, low specific heat, low vaporization temperature, small heat of vaporization and vaporizing over a temperature range of less than 30°C. and capable of absorbing sufficient energy from said electromagnetic energy beam to vaporize without decomposition and capable of being applied to said carrier film from solution or suspension in a solvent, said film being dry and binderless both prior to and during exposure to said selective irradiation.
Claim 2
Dependent Claim
145 words
In a method of recording which comprises selectively irradiating with a modulated beam of electromagnetic energy one surface of a carrier film having on its opposite surface on energy transferable colorant coating so as to cause the transferable coating to vaporize and deposit on a surface of an adjacent, spaced recording element, the improvement which comprises employing as said colorant coating a binderless dry film consisting essentially of a dye of pigment of low thermal conductivity, low density, low specific heat, low vaporization temperature, small heat of vaporization and vaporizing over a temperature range of less than 30°C. and capable of absorbing sufficient energy from said electromagnetic energy beam to vaporize without decomposition and capable of being applied to said carrier film from solution or suspension in a solvent, said film being dry and binderless both prior to and during exposure to said selective irradiation.
Claim 3
Dependent Claim
28 words
A method according to claim 1 in which said carrier film is selected from the class consisting of cellulose acetate, cellulose triacetate, polyethylene, polypropylene, polycarbonate and polyvinyl chloride.
Claim 4
Dependent Claim
94 words
In a method of recording which comprises selectively irradiating with a modulated beam of electromagnetic energy one surface of a carrier film having on its opposite surface an energy transferable colorant coating so as to cause the transferable coating to vaporize and deposit on a surface of an adjacent, spaced recording element, the improvement which comprises employing as said colorant coating a film consisting essentially of a dye or pigment selected from the class consisting of Rhodamine B Ex., 1,5-diaminoanthraquinone, 1,2-diaminoanthraquinone, Yellow 2GL, Orange GNG, Auramine O, Victoria Green WB, flourescein and Sudan I.
Claim 5
Dependent Claim
94 words
In a method of recording which comprises selectively irradiating with a modulated beam of electromagnetic energy one surface of a carrier film having on its opposite surface an energy transferable colorant coating so as to cause the transferable coating to vaporize and deposit on a surface of an adjacent, spaced recording element, the improvement which comprises employing as said colorant coating a film consisting essentially of a dye or pigment selected from the class consisting of Rhodamine B Ex., 1,5-diaminoanthraquinone, 1,2-diaminoanthraquinone, Yellow 2GL, Orange GNG, Auramine O, Victoria Green WB, flourescein and Sudan I.
Claim 6
Dependent Claim
69 words
In a method of recording which comprises selectively irradiating a modulated beam of electromagnetic energy one surface of a carrier film having on its opposite surface an energy transferable coating to vaporize and deposit on a surface of an adjacent, spaced recording element, selected from the class consisting of PVC and polycarbonate films, the improvement which comprises employing as said colorant coating a film of Brilliant Blue 2GL dye.
Claim 7
Dependent Claim
69 words
In a method of recording which comprises selectively irradiating a modulated beam of electromagnetic energy one surface of a carrier film having on its opposite surface an energy transferable coating to vaporize and deposit on a surface of an adjacent, spaced recording element, selected from the class consisting of PVC and polycarbonate films, the improvement which comprises employing as said colorant coating a film of Brilliant Blue 2GL dye.
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) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |