US3906138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Print sheet
Assignee: 3M Co
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Filing: 1974-01-24
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Granted: 1975-09-16
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Expires: 1994-01-24
Abstract
Abstract A dye-receptive coated print sheet for use in making reproductions in color of colored originals has a dye-fixing inner layer and a protective surface layer on a supporting carrier web and is conductive and microporous for primary image reception or may be transparent where secondary image reception is involved.
Inventors
- 👤 Thomas J Evensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:27
CPC Classifications
G; G03; G03G; G03G7/00; G03G7/0006; B; B41; B41M; B41M1/00; B41M1/26; B41M1/36; B41M5/00; B41M5/025; B41M5/035; B41M5/0355; G03G13/00; G03G13/01; G03G13/26; G03G5/00; G03G5/12; G03G7/002; G03G7/0053; G03G7/006; G03G7/0073; G03G7/008; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
107 words
A PRINT SHEET ADAPTED FOR USE IN THE MAKING OF PERMANENT COLOR PRINTS BY A DYE TRANSTER PROCESS COMPRISING A BACKING AND A DYE-RECEPTIVE POLYMERIC COATING, SAID COATING CONSISTING ESSENTIALLY OF POLYMERIC BINDER AND AS A DYE FIXATIVE A BIVALENT METAL SALT OF AN ORGANIC ACID IN AN AMOUNT BY WEIGHT OF AT LEAST ABOUT ONE-FOURTH PART FOR EACHS OF SAID BINDER, SAID SHEET BEING CHARACTERIZED BY A UNIFORM SURFACE APPEARANCE, A RESISTIVITY LESS THAN ABOUT 10**13 OHMS AND A POROSITY VALUE LESS THAN ABOUT 5 SEC./ML., SAID SHEET BEING SUFFICIENTLY POROUS TO PERMIT SIMULTANEOUSLY CLOSE CONTACT WITH A SUPPORTING VACUUM PLATEN AND AN OVERLYING NON-POROUS FILM.
Claim 2
Dependent Claim
107 words
A PRINT SHEET ADAPTED FOR USE IN THE MAKING OF PERMANENT COLOR PRINTS BY A DYE TRANSTER PROCESS COMPRISING A BACKING AND A DYE-RECEPTIVE POLYMERIC COATING, SAID COATING CONSISTING ESSENTIALLY OF POLYMERIC BINDER AND AS A DYE FIXATIVE A BIVALENT METAL SALT OF AN ORGANIC ACID IN AN AMOUNT BY WEIGHT OF AT LEAST ABOUT ONE-FOURTH PART FOR EACHS OF SAID BINDER, SAID SHEET BEING CHARACTERIZED BY A UNIFORM SURFACE APPEARANCE, A RESISTIVITY LESS THAN ABOUT 10**13 OHMS AND A POROSITY VALUE LESS THAN ABOUT 5 SEC./ML., SAID SHEET BEING SUFFICIENTLY POROUS TO PERMIT SIMULTANEOUSLY CLOSE CONTACT WITH A SUPPORTING VACUUM PLATEN AND AN OVERLYING NON-POROUS FILM.
Claim 3
Dependent Claim
29 words
The print sheet of claim 1 wherein said dye-receptive coating contains particulate nickel stearate in a thermoplastic vinyl chloride-vinyl acetate copolymer and including a thin heat-resistant cellulose ester top-coating.
Claim 4
Dependent Claim
20 words
The print sheet of claim 1 wherein said backing is a paper backing containing a water-soluble polycationic conductive organic polymer.
Claim 5
Dependent Claim
13 words
The print sheet of claim 3 including a thin transparent protective heat-resistant top-coating.
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) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |