US4707404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal transfer recording material
Assignee: Mitsubishi Paper Mills Ltd
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Filing: 1985-03-28
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Granted: 1987-11-17
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Expires: 2005-03-28
Abstract
Abstract A thermal transfer recording material comprising a thin substrate and a thermal transfer ink layer provided on the upper side of the substrate, wherein the thin substrate is a polyethylene film having a density of 0.935 or higher, causes no sticking phenomenon in thermal transfer recording. The above thermal transfer recording material, when the polyethylene film used therein further has a weight average molecular weight of 200,000 or higher, forms no frost image and causes no sticking of the polyethylene to the surface of a thermal head of a printer.
Inventors
- 👤 Sadao Morishita
- 👤 Toshihiko Matsushita
- 👤 Mikiya Sekine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:34
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/41; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31924; Y10T428/31931
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
38 words
A thermal transfer recording material comprising a thin substrate and a thermal transfer ink layer provided on the upper side of the substrate, wherein the thin substrate is a polyethylene film having a density of 0.935 or higher.
Claim 2
Dependent Claim
38 words
A thermal transfer recording material comprising a thin substrate and a thermal transfer ink layer provided on the upper side of the substrate, wherein the thin substrate is a polyethylene film having a density of 0.935 or higher.
Claim 3
Dependent Claim
23 words
A thermal transfer recording material according to claim 1, wherein the polyethylene film has a weight average molecular weight of 200,000 or higher.
Claim 4
Dependent Claim
23 words
A thermal transfer recording material according to claim 1 or 2, wherein the polyethylene film has a thickness of 3 to 30 μ.
Claim 5
Dependent Claim
23 words
A thermal transfer recording material according to claim 2, wherein the polyethylene film has a weight average molecular weight of 200,000 to 350,000.
Claim 6
Dependent Claim
21 words
A thermal transfer recording material according to claim 2 wherein the polyethylene film has a thickness of 3 to 30 μ.
Claim 7
Dependent Claim
19 words
A thermal transfer recording material according to claim 1, wherein the polyethylene film is produced by the T-die method.
Claim 8
Dependent Claim
35 words
A thermal transfer recording material according to claim 1, wherein the polyethylene film is selected from the group consisting of high density polyethylenes and blends between a high density polyethylene and a low density polyethylene.
Claim 9
Dependent Claim
47 words
A thermal transfer recording material comprising a thin substrate and a thermal transfer ink layer provided on the upper side of the substrate, wherein the thin substrate is a film of blends between a polyethylene and a polypropylene, said film having a density of 0.935 or higher.
Claim 10
Dependent Claim
47 words
A thermal transfer recording material comprising a thin substrate and a thermal transfer ink layer provided on the upper side of the substrate, wherein the thin substrate is a film of blends between a polyethylene and a polypropylene, said film having a density of 0.935 or higher.
Claim 11
Dependent Claim
50 words
A thermal transfer recording material comprising a thin substrate and a thermal transfer ink layer provided on the upper side of the substrate, wherein the thin substrate is a film of a copolymer between ethylene and butene, composed essentially of ethylene, said film having a density of 0.935 or higher.
Claim 12
Dependent Claim
50 words
A thermal transfer recording material comprising a thin substrate and a thermal transfer ink layer provided on the upper side of the substrate, wherein the thin substrate is a film of a copolymer between ethylene and butene, composed essentially of ethylene, said film having a density of 0.935 or higher.
References Cited (Backward Citations)
JPH103892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |