US4688057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sensitive transferring recording medium
Assignee: General Co Ltd
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Filing: 1985-07-29
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Granted: 1987-08-18
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Expires: 2005-07-29
Abstract
Abstract A heat-sensitive transferring recording medium comprises a substrate, a heat-sensitive color forming layer on one side of the substrate, and a heat-sensitive transferring ink layer, on the other side of the substrate, consisting essentially of (a) a wax having penetration of not higher than 5 at 25 DEG C., and acid value of 50-70, (b) a wax having penetration of not higher that 5 at 25 DEG C. and saponification value of 70-90, (c) a wax having penetration of 7-20 at 25 DEG C. (d) an extender pigment and (e) a coloring agent, and the contents of components (a)+(b), (c) and (d) in the solid matter of the heat-sensitive transferring ink are 20-40%, 20-40% and 20-30% by weight.
Inventors
- 👤 Seiji Ueyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:23
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/392; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A heat-sensitive transferring recording medium which comprises a substrate, a heat-sensitive color forming layer on one side of the substrate, and a heat-sensitive transferring ink layer, on the other side of the substrate, consisting essentially of (a) a wax having penetration (JIS K 2235) of not higher than 5 at 25° C. and acid value of 50-70, (b) a wax having penetration (JIS K 2235) of not higher than 5 at 25° C. and saponification value of 70-90 (c) a wax having penetration (JIS K 2235) of 7-20 at 25° C., (d) an extender pigment and (e) a coloring agent, the solid matter of the heat-sensitive transferring ink containing 20-40% by weight of the sum of the components (a) and (b), 20-40% by weight of the component (c) and 20-30% by weight of the component (d).
Claim 2
Dependent Claim
136 words
A heat-sensitive transferring recording medium which comprises a substrate, a heat-sensitive color forming layer on one side of the substrate, and a heat-sensitive transferring ink layer, on the other side of the substrate, consisting essentially of (a) a wax having penetration (JIS K 2235) of not higher than 5 at 25° C. and acid value of 50-70, (b) a wax having penetration (JIS K 2235) of not higher than 5 at 25° C. and saponification value of 70-90 (c) a wax having penetration (JIS K 2235) of 7-20 at 25° C., (d) an extender pigment and (e) a coloring agent, the solid matter of the heat-sensitive transferring ink containing 20-40% by weight of the sum of the components (a) and (b), 20-40% by weight of the component (c) and 20-30% by weight of the component (d).
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) | 1990-08-17 | 1991-02-16 | 1991-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-17 | 1995-02-16 | 1995-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-17 | 1999-02-16 | 1999-08-18 | $7700.00 | Window Closed / Lapsed |