US4992413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image-receiving sheet
Assignee: Dai Nippon Printing Co Ltd
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Filing: 1989-03-08
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Granted: 1991-02-12
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Expires: 2009-03-08
Abstract
Abstract An image-receiving sheet, including a sheet substrate, an image-receiving layer which is formed on said substrate and which receives the dye migrated by heating from a heat transfer sheet and a release layer formed on said image-receiving layer, characterized in that said release layer is formed with a releasable resin having a molecular weight of 3500 to 20000.
Inventors
- 👤 Noritaka Egashira
- 👤 Koichi Asahi
- 👤 Masanori Akada
- 👤 Yoshinori Nakamura
- 👤 Kazunobu Imoto
- 👤 Nobuhisa Nishitani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:18
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; Y10T428/31652; Y10T428/31663; Y10T428/31725; Y10T428/31786; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
77 words
An image-receiving sheet for use with a heat transfer sheet having a dye layer containing a heat-transferable dye, said image-receiving sheet comprising: a sheet substrate; an image-receiving layer formed on one surface of said sheet substrate, said image-receiving layer comprising a resin; and a release layer formed on said image-receiving layer, said release layer comprising a releasable, reaction curable resin having a molecular weight of 3,500 to 20,000 and a reactive group equivalent of 300 or less.
Claim 2
Dependent Claim
77 words
An image-receiving sheet for use with a heat transfer sheet having a dye layer containing a heat-transferable dye, said image-receiving sheet comprising: a sheet substrate; an image-receiving layer formed on one surface of said sheet substrate, said image-receiving layer comprising a resin; and a release layer formed on said image-receiving layer, said release layer comprising a releasable, reaction curable resin having a molecular weight of 3,500 to 20,000 and a reactive group equivalent of 300 or less.
Claim 3
Dependent Claim
52 words
An image-receiving sheet according to claim 1, wherein said releasable resin comprises a composition of a resin having reactive groups existing locally at one end portion, both end portions or the central portion of the main chain, and a resin having reactive groups existing randomly at any position in the main chain.
Claim 4
Dependent Claim
28 words
An image-receiving sheet according to claim 1, wherein said releasable resin comprises a resin containing substituents which are highly compatible with said resin for forming the image-receiving layer.
Claim 5
Dependent Claim
39 words
An image-receiving sheet according to claim 1, wherein said releasable resin comprises two kinds of reaction curable resins, at least one of which comprises a combination of two or more kinds of releasable resins with different reaction group equivalents.
Claim 6
Dependent Claim
67 words
An image-receiving sheet according to claim 1, wherein the release layer is formed on the surface of the image-receiving layer by coating the sheet substrate with a composition for formation of the image-receiving layer prepared by kneading the above releasable resin with the resin for formation of the image-receiving layer and permitting the releasable resin to bleed onto the surface of the image-receiving layer, followed by curing.
Claim 7
Dependent Claim
21 words
An image-receiving sheet according to claim 1, wherein an intermediate layer is formed between said sheet substrate and said image-receiving layer.
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) | 1994-02-11 | 1994-08-13 | 1995-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-11 | 1998-08-13 | 1999-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-11 | 2002-08-13 | 2003-02-12 | $7700.00 | Window Closed / Lapsed |