US3859094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet material useful in image transfer techniques
Assignee: 3M Co
•
Filing: 1973-01-05
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Granted: 1975-01-07
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Expires: 1993-01-05
Abstract
Abstract Sheet material is provided which is useful in image transfer techniques whereby an image of an original is formed on a suitable receptor.
Inventors
- 👤 Victor R Franer
- 👤 Darrell C Burman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:49
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/48; G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C5/00; G03C5/56; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
109 words
SHEET MATERIAL USEFUL IN IMAGE TRANSFER TECHNIQUES COMPRISING: A. A THIN, FLEXIBLE BACKING WHICH IS TRANSPARENT TO INFRARED RADIATION; B. AN IMAGEABLE LAYER COATED OVER ONE MAJOR SURFACE OF SAID BACKING, SAID IMAGEABLE LAYER BEING CAPABLE OF PROVIDING INFRARED-ABSORPTIVE IMAGE AREAS IN ONE OF THE FOLLOWING MANNERS: I. UPON IMAGEWISE EXPOSURE THEREOF TO A HEAT PATTERN; OR II. UPON IMAGEWISE EXPOSURE THEREOF A LIGHT PATTERN FOLLOWED BY DEVELOPMENT; C. A CONTINOUS, NON-TACKY, HEAT-FUSIBLE INFRAREDTRANSPARENT LAYER COATED OVER THE OTHER MAJOR SURFACE OF SAID BACKING, SAID HEAT-FUSIBLE LAYER BEING TACKY AT TEMPERATURES IN THE RANGE OF ABOUT 60* TO 210*C., SAID HEATFUSIBLE LAYER COMPRISING A MIXTURE OF RESIN AND WAX.
Claim 2
Dependent Claim
109 words
SHEET MATERIAL USEFUL IN IMAGE TRANSFER TECHNIQUES COMPRISING: A. A THIN, FLEXIBLE BACKING WHICH IS TRANSPARENT TO INFRARED RADIATION; B. AN IMAGEABLE LAYER COATED OVER ONE MAJOR SURFACE OF SAID BACKING, SAID IMAGEABLE LAYER BEING CAPABLE OF PROVIDING INFRARED-ABSORPTIVE IMAGE AREAS IN ONE OF THE FOLLOWING MANNERS: I. UPON IMAGEWISE EXPOSURE THEREOF TO A HEAT PATTERN; OR II. UPON IMAGEWISE EXPOSURE THEREOF A LIGHT PATTERN FOLLOWED BY DEVELOPMENT; C. A CONTINOUS, NON-TACKY, HEAT-FUSIBLE INFRAREDTRANSPARENT LAYER COATED OVER THE OTHER MAJOR SURFACE OF SAID BACKING, SAID HEAT-FUSIBLE LAYER BEING TACKY AT TEMPERATURES IN THE RANGE OF ABOUT 60* TO 210*C., SAID HEATFUSIBLE LAYER COMPRISING A MIXTURE OF RESIN AND WAX.
Claim 3
Dependent Claim
22 words
Sheet material in accordance with claim 1 wherein said imageable layer is visibly heat-sensitive and forms infrared-absorptive image areas when locally heated.
Claim 4
Dependent Claim
30 words
Sheet material in accordance with claim 2 wherein said imageable layer comprises, in intimate association, silver soap of a long chain fatty acid and a phenolic co-reactant for said soap.
Claim 5
Dependent Claim
51 words
Sheet material in accordance with claim 2 wherein said imageable layer comprises: a mixture of ferric and silver soaps of long chain fatty acids wherein said silver soap represents between 10 and 80 percent by weight of said mixture; a toner for the silver image; and phenolic co-reactant for said soaps.
Claim 6
Dependent Claim
13 words
Sheet material in accordance with claim 1 wherein said imageable layer is light-sensitive.
Claim 7
Dependent Claim
27 words
Sheet material in accordance with claim 5 wherein said imageable layer includes a major proportion of organic silver salt oxidizing agent and reducing agent for silver ion.
Claim 8
Dependent Claim
15 words
Sheet material in accordance with claim 1 wherein said backing comprises a transparent plastic film.
Claim 9
Dependent Claim
24 words
Sheet material in accordance with claim 1 wherein said heat-fusible layer comprises a major amount of polyamide resin and a minor amount of wax.
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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |