US4708903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sensitive transfer sheet
Assignee: Toppan Inc
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Filing: 1986-04-14
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Granted: 1987-11-24
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Expires: 2006-04-14
Abstract
Abstract A heat-sensitive transfer sheet comprising a base film, a first hot melt layer composed mainly of wax, a coloring layer comprising at least one colorant and at least one a resin as a vehicle, and a second hot melt layer composed mainly of wax, these layers being formed on said base film in this order.
Inventors
- 👤 Tsuneo Tanaka
- 👤 Tetsuro Yoshitomi
- 👤 Koji Hanada
- 👤 Mashato Ohashi
- 👤 Michichika Hikosaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:41
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/382; B41M5/392; B41M5/395; B41M5/423; B41M5/44; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24843; Y10T428/24893; Y10T428/24901; Y10T428/24942; Y10T428/2495; Y10T428/24959; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/269; Y10T428/31504; Y10T428/31725; Y10T428/31826; Y10T428/31844; Y10T428/31855; Y10T428/31935; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
98 words
A heat-sensitive transfer sheet comprising (1) a base film, (2) a first hot melt layer composed mainly of wax, (3) a coloring layer comprising at least one colorant selected from the group consisting of dyes and pigments, and as a vehicle at least one resin selected from the group consisting of acrylic resins, styrene resins, ester resins, rosins, vinyl resins, acetal resins, polyamide resins, rubbers and cellulose derivatives, and (4) a second hot melt layer composed mainly of wax, said layers being formed on said base film in this order, whereby said second layer is the top layer.
Claim 2
Dependent Claim
98 words
A heat-sensitive transfer sheet comprising (1) a base film, (2) a first hot melt layer composed mainly of wax, (3) a coloring layer comprising at least one colorant selected from the group consisting of dyes and pigments, and as a vehicle at least one resin selected from the group consisting of acrylic resins, styrene resins, ester resins, rosins, vinyl resins, acetal resins, polyamide resins, rubbers and cellulose derivatives, and (4) a second hot melt layer composed mainly of wax, said layers being formed on said base film in this order, whereby said second layer is the top layer.
Claim 3
Dependent Claim
22 words
A heat-sensitive transfer sheet according to claim 1, wherein each of the first and second hot melt layers additionally comprises a resin.
Claim 4
Dependent Claim
37 words
A heat-sensitive transfer sheet according to claim 2, wherein the wax and the resin are present in a ratio by weight of up to 100 parts of the wax to 50 parts of the resin by weight.
Claim 5
Dependent Claim
27 words
The sheet according to claim 3, wherein the wax in the first and second hot melt layer is carnauba wax and the resin is an acrylic resin.
Claim 6
Dependent Claim
29 words
The sheet according to claim 3, wherein the wax in the first hot melt layer is paraffin wax and in the second hot melt layer is a synthetic wax.
Claim 7
Dependent Claim
17 words
The sheet according to claim 1, wherein the coloring layer is in the range of 0.1-3 micrometers.
Claim 8
Dependent Claim
21 words
The sheet according to claim 1, wherein said coloring layer is a monochromatic layer, a three-color layer or a four-color layer.
Claim 9
Dependent Claim
17 words
The sheet according to claim 1, wherein said coloring layer does not melt under heat transfer conditions.
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) | 1990-11-23 | 1991-05-25 | 1991-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-23 | 1995-05-25 | 1995-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-23 | 1999-05-25 | 1999-11-24 | $7700.00 | Window Closed / Lapsed |