US4565842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally transferable ink compositions
Assignee: 3M Co
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Filing: 1985-04-18
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Granted: 1986-01-21
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Expires: 2005-04-18
Abstract
Abstract A process and composition are provided that provide for thermal transfer of ink compositions and eliminate the need to prepare articles such as sign faces, particularly flexible sign faces, by painting with ink compositions that contain solvents. The present process and composition permit thermal transfer from a carrier to a receptor at low temperatures with the use of vacuum pressure. The transferred ink adheres tenaciously to the receptor and is flexible.
Inventors
- 👤 Robert C. Fitzer
- 👤 Charles J. Fabbrini
- 👤 Frank L. Deyak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:54
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; B; B41; B41M; B41M5/00; B41M5/025; B41M5/035; B41M5/0356; D; D06; D06P; D06P5/00; D06P5/003; D06P5/007; D06P5/009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A thermally transferable ink composition having a 20% elongation temperature of less than about 85° C. and an elongation at break of at least about 15% comprising: (a) from about 36 to 95% by weight of a thermoplastic polymer selected from the group consisting of polyvinyl chloride, copolymers thereof, and blends, thereof; (b) from about 50 to 5% by weight of a flexibilizer for said thermoplastic polymer that is compatible with said thermoplastic polymer; and (c) up to about 40% by weight of a colorant wherein said composition is thermally transferable from a carrier to a receptor at a temperature in the range of 75° C. to 110° C.
Claim 2
Dependent Claim
109 words
A thermally transferable ink composition having a 20% elongation temperature of less than about 85° C. and an elongation at break of at least about 15% comprising: (a) from about 36 to 95% by weight of a thermoplastic polymer selected from the group consisting of polyvinyl chloride, copolymers thereof, and blends, thereof; (b) from about 50 to 5% by weight of a flexibilizer for said thermoplastic polymer that is compatible with said thermoplastic polymer; and (c) up to about 40% by weight of a colorant wherein said composition is thermally transferable from a carrier to a receptor at a temperature in the range of 75° C. to 110° C.
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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) | 1989-01-20 | 1989-07-22 | 1990-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-20 | 1993-07-22 | 1994-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-20 | 1997-07-22 | 1998-01-21 | $7700.00 | Window Closed / Lapsed |