US4894288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal transfer material
Assignee: Canon Inc
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Filing: 1988-05-24
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Granted: 1990-01-16
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Expires: 2008-05-24
Abstract
Abstract A thermal transfer material, comprising: a support, an intermediate layer and a heat-transferable ink layer disposed in the order named on the support. The intermediate layer comprises oxidized polyethylene having a number-average molecular weight of 1300-2500, and at least one species selected from polyoxyethylene alkylaryl ether, fatty acid, resin acid, amine and sulfuric acid ester salt. The thermal transfer material provides a transfer image of high density and clear edges without lacking even on a recording medium having poor surface smoothness.
Inventors
- 👤 Tsuguhiro Fukuda
- 👤 Hiroshi Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:41
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/423; B41M5/44; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
62 words
A thermal transfer material comprising: a support, an intermediate layer, and a heat-transferable ink layer which comprises a heat fusible material disposed in this order on the support; said intermediate layer comprising oxidized polyethylene having a number-average molecular weight of 1300-2500, and at least one species selected from the group consisting of polyoxyethylene alkylaryl ether, resin acid, and sulfuric acid ester salt.
Claim 2
Dependent Claim
62 words
A thermal transfer material comprising: a support, an intermediate layer, and a heat-transferable ink layer which comprises a heat fusible material disposed in this order on the support; said intermediate layer comprising oxidized polyethylene having a number-average molecular weight of 1300-2500, and at least one species selected from the group consisting of polyoxyethylene alkylaryl ether, resin acid, and sulfuric acid ester salt.
Claim 3
Dependent Claim
19 words
A thermal transfer material according to claim 1, wherein said oxidized polyethylene has a number-average molecular weight of 1400-2200.
Claim 4
Dependent Claim
28 words
A thermal transfer material according to claim 1, wherein said heat-transferable ink layer has a two layer structure comprising a first ink layer and a second ink layer.
Claim 5
Dependent Claim
36 words
A thermal transfer material according to claim 1, wherein said heat-transferable ink layer comprises a resinous heat-fusible material in an amount of 70 wt. % or more based on the weight of the heat-fusible material thereof.
Claim 6
Dependent Claim
17 words
A thermal transfer material according to claim 1, wherein said intermediate layer further comprises a polar material.
Claim 7
Dependent Claim
21 words
A thermal transfer material according to claim 5, wherein said polar material is an acrylic resin or a vinyl acetate resin.
Claim 8
Dependent Claim
41 words
A thermal transfer material according to claim 1, wherein said intermediate layer is formed by the process of contacting an oxidized polyethylene having a number-average molecular weight of 1300-2500, with a resin acid and a neutralizing agent of an amine salt.
Claim 9
Dependent Claim
44 words
A thermal transfer material according to claim 7, wherein said intermediate layer is formed by the process of contacting the oxidized polyethylene with the resin acid and neutralizing agent under conditions of temperature and pressure sufficient to form an aqueous emulsion of oxidized polyethylene.
References Cited (Backward Citations)
US4783360A
Cited
US4777079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-15 | 1993-07-17 | 1994-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-15 | 1997-07-17 | 1998-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-15 | 2001-07-17 | 2002-01-16 | $7700.00 | Window Closed / Lapsed |