Patent US2097754A successfully refreshed from Google Patents.
Patent US3904802A successfully refreshed from Google Patents.
US3904802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer elements and methods of preparing same
Assignee: Columbia Ribbon and Carbon Manufacturing Co Inc
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Filing: 1974-10-31
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Granted: 1975-09-09
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Expires: 1994-10-31
Abstract
Abstract Method for producing novel reusable pressure-sensitive transfer elements by solvent-coating techniques in which a composition comprising resinous film-forming binder material, incompatible oil, coloring matter and an aqueous vehicle is coated onto a flexible foundation and dried by evaporation of the aqueous vehicle. Transfer elements which are curl-resistant and substantially free of undesirable surface ink migration or ''''sweating'''' result from the use of a mixture of certain amounts of water-dispersible resinous film-forming binder materials comprising from 40 to 80% by weight of a water-insoluble filmformer and from 60 to 20% by weight of a water-soluble filmformer.
Inventors
- 👤 Albert E Brown
- 👤 Allan T Schlotzhauer
- 👤 Douglas A Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:19
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/10; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249994; Y10T428/249995; Y10T428/249996
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
131 words
THE PROCESS OF PREPARING A PRESSURE-SENSITIVE TRANSFER ELEMENT COMPRISING A FLEXIBLE FOUNDATION CARRYING A UNIFORM WATER-APPLIED PRESSURE-SENSITIVE MICROPOROUS COATING CONTAINING PRESSURE-EXUDABLE INK COMPOSITION, WHICH COMPRISES THE STEPS OF FORMING A COATING COMPOSITION COMPRISING A BINDER MATERIAL CONTAINING FROM ABPOUT 40 TO 80% BY WEIGHT OF A WATER-INSOLUBLE, WATER-DISPERSIBLE SYNTHETIC THERMOPLASTIC RESIN AND FROM ABOUT 60 TO 20% BY WEIGHT OF A WATER-SOLUBLE FILM-FORMING MATERIAL, AN OLEAGINOUS MATERIAL WHICH IS INCOMPATIBLE WITH SAID BINDER MATERIAL, A QUANTITY OF IMAGING MATERIAL, AND AN AQUEOUS SOLVENT, APPLYING SAID COATING COMPOSITION TO A FLEXIBLE FOUNDATION IN THE FORM OF A COATING OF UNIFORM TICKNESS, AND EVAPORATING SAID AQUEOUS SOLVENT TO SOLIDIFY THE COATING AND FORM A MISCROPOROUS STRUCTURE CONTAINING WITHIN THE PORES THEREOF A PRESSURE-EXUDABLE INK COMPOSITION CONTAINING SAID OLEAGINOUS MATERIAL AND SAID IMAGING MATERIAL.
Claim 2
Dependent Claim
131 words
THE PROCESS OF PREPARING A PRESSURE-SENSITIVE TRANSFER ELEMENT COMPRISING A FLEXIBLE FOUNDATION CARRYING A UNIFORM WATER-APPLIED PRESSURE-SENSITIVE MICROPOROUS COATING CONTAINING PRESSURE-EXUDABLE INK COMPOSITION, WHICH COMPRISES THE STEPS OF FORMING A COATING COMPOSITION COMPRISING A BINDER MATERIAL CONTAINING FROM ABPOUT 40 TO 80% BY WEIGHT OF A WATER-INSOLUBLE, WATER-DISPERSIBLE SYNTHETIC THERMOPLASTIC RESIN AND FROM ABOUT 60 TO 20% BY WEIGHT OF A WATER-SOLUBLE FILM-FORMING MATERIAL, AN OLEAGINOUS MATERIAL WHICH IS INCOMPATIBLE WITH SAID BINDER MATERIAL, A QUANTITY OF IMAGING MATERIAL, AND AN AQUEOUS SOLVENT, APPLYING SAID COATING COMPOSITION TO A FLEXIBLE FOUNDATION IN THE FORM OF A COATING OF UNIFORM TICKNESS, AND EVAPORATING SAID AQUEOUS SOLVENT TO SOLIDIFY THE COATING AND FORM A MISCROPOROUS STRUCTURE CONTAINING WITHIN THE PORES THEREOF A PRESSURE-EXUDABLE INK COMPOSITION CONTAINING SAID OLEAGINOUS MATERIAL AND SAID IMAGING MATERIAL.
Claim 3
Dependent Claim
37 words
The process of claim 1 in which the binder material comprises from about 40% to about 55% by weight of the water-soluble film-forming material and from about 60% to about 45% by weight of the water-insoluble rEsin.
Claim 4
Dependent Claim
45 words
The process of claim 1 in which a film-forming bonding layer comprising a water vehicle and a water-dispersible binder material is first applied to the flexible foundation and dried by evaporation of the water, and the ink coating composition is applied over said bonding layer.
Claim 5
Dependent Claim
80 words
A PRESSURE-SENSITIVE TRANSFER ELEENT COMPRISING A FLEXIBLE FOUNDATION HAVING THERON A THIN, MISCROSPOROUS, WATER-APPLIED INK LAYER COMPRISING A MICROSPOROUS STRUCTURE OF RESINOUS BINDER MATERIAL CONTAINING WITHIN THE PORES THEREOF A PRESSURE EXUDABLE INK COMPRISING AN OLEAGINOUS MATERIAL WHICH IS INCOMPATIBLE WITH SAID BINDER MATERIAL AND IMAGING MATERIAL, CHARACTERIZED BY SAID BINDER MATERIAL COMPRISING FROM ABOUT 40 TO 80% BY WEIGHT OF A WATER-INSOLUBLE, WATER-DISPERSIBLE SYNTHETIC THERMOPLASTIC RESIN AND FROM ABOUT 60 TO 20% BY WEIGHT OF A WATER-SOLUBLE FILM-FORMING MATERIAL
Claim 6
Dependent Claim
80 words
A PRESSURE-SENSITIVE TRANSFER ELEENT COMPRISING A FLEXIBLE FOUNDATION HAVING THERON A THIN, MISCROSPOROUS, WATER-APPLIED INK LAYER COMPRISING A MICROSPOROUS STRUCTURE OF RESINOUS BINDER MATERIAL CONTAINING WITHIN THE PORES THEREOF A PRESSURE EXUDABLE INK COMPRISING AN OLEAGINOUS MATERIAL WHICH IS INCOMPATIBLE WITH SAID BINDER MATERIAL AND IMAGING MATERIAL, CHARACTERIZED BY SAID BINDER MATERIAL COMPRISING FROM ABOUT 40 TO 80% BY WEIGHT OF A WATER-INSOLUBLE, WATER-DISPERSIBLE SYNTHETIC THERMOPLASTIC RESIN AND FROM ABOUT 60 TO 20% BY WEIGHT OF A WATER-SOLUBLE FILM-FORMING MATERIAL
Claim 7
Dependent Claim
16 words
A transfer element according to claim 4 in which the water-soluble film-forming material comprises polyvinyl alcohol.
Claim 8
Dependent Claim
16 words
A transfer element according to claim 4 in which the water-soluble, film-forming binder comprises polyethylene oxide.
Claim 9
Dependent Claim
17 words
A transfer element according to claim 4 in which the water-insoluble, water-dispersible resin comprises an acrylic polymer.
Claim 10
Dependent Claim
15 words
A transfer element according to claim 4 in which the water-insoluble resin comprises polyvinyl acetate.
Claim 11
Dependent Claim
37 words
A transfer element according to claim 4 in which the binder material comprises from about 40 to 55% by weight of the water-soluble, film-forming material and from about 60 to 45% by weight of the water-insoluble resin.
Claim 12
Dependent Claim
27 words
A transfer element according to claim 4 in which a bonding layer comprising a water-dispersible, film-forming binder material is present between the foundation and the ink layer.
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) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |