Patent US4910087A successfully refreshed from Google Patents.
US4910087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sensitive recording medium
Assignee: Dainichiseika Color and Chemicals Mfg Co Ltd
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Filing: 1987-08-27
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Granted: 1990-03-20
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Expires: 2007-08-27
Abstract
Abstract A heat-sensitive recording medium is composed of a base sheet, a heat-sensitive recording layer provided on one side of the base sheet and a heat-resistant layer provided on the other side of the base sheet. The heat-resistant layer is made of a resin containing siloxane bonds in its molecule.
Inventors
- 👤 Hideyasu Torii
- 👤 Kazuyuki Hanada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:32
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/44; B41M5/443; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31565; Y10T428/31652; Y10T428/31663; Y10T428/31786; Y10T428/31797; Y10T428/31942
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
66 words
In a heat-sensitive recording medium composed of a base sheet, a heat-sensitive ink-transfer recording layer provided on one side of the base sheet and a heat-resistant layer provided on the other side of the base sheet, the improvement wherein the heat-resistant layer is made of a resin containing siloxane bonds in its molecule, said resin being selected from the group consisting of polyurethane and polyurea resins.
Claim 2
Dependent Claim
66 words
In a heat-sensitive recording medium composed of a base sheet, a heat-sensitive ink-transfer recording layer provided on one side of the base sheet and a heat-resistant layer provided on the other side of the base sheet, the improvement wherein the heat-resistant layer is made of a resin containing siloxane bonds in its molecule, said resin being selected from the group consisting of polyurethane and polyurea resins.
Claim 3
Dependent Claim
16 words
The recording medium of claim 1, wherein the resin containing siloxane bonds is a polyurethane resin.
Claim 4
Dependent Claim
16 words
The recording medium of claim 1, wherein the resin containing siloxane bonds is a polyurea resin.
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) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |