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US4990485A
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Heat transfer image-receiving sheet
Assignee: Dai Nippon Printing Co Ltd
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Filing: 1989-11-13
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Granted: 1991-02-05
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Expires: 2009-11-13
Abstract
Abstract A heat transfer image-receiving sheet having a dye receiving layer provided on the surface of a substrate sheet, said dye receiving layer comprising a graft copolymer having at least one releasing segment selected from the group consisting of polysiloxane segments, fluorinated carbon segments and long chain alkyl segments graft bonded to the main chain in the graft copolymer.
Inventors
- 👤 Noritaka Egashira
- 👤 Yoshinori Nakamura
- 👤 Kenichiro Suto
- 👤 Masaki Kutsukake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:11
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/529; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31551; Y10T428/31652; Y10T428/31663; Y10T428/31725; Y10T428/31786; Y10T428/31855
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
69 words
A heat transfer image-receiving sheet comprising: a substrate sheet; and a dye receiving layer formed on a surface of said substrate sheet, said dye receiving layer comprising a graft copolymer including a main chain and at least one releasing segment graft-bonded thereto, said at least one releasing segment comprising at least one segment selected from the group consisting of polysiloxane segments, fluorinated carbon segments, and long chain alkyl segments.
Claim 2
Dependent Claim
69 words
A heat transfer image-receiving sheet comprising: a substrate sheet; and a dye receiving layer formed on a surface of said substrate sheet, said dye receiving layer comprising a graft copolymer including a main chain and at least one releasing segment graft-bonded thereto, said at least one releasing segment comprising at least one segment selected from the group consisting of polysiloxane segments, fluorinated carbon segments, and long chain alkyl segments.
Claim 3
Dependent Claim
27 words
A heat transfer image-receiving sheet according to claim 1, wherein the main chain of said graft copolymer is an acrylic, vinyl, polyester, polyurethane, polyamide or cellulose polymer.
Claim 4
Dependent Claim
22 words
A heat transfer image-receiving sheet according to claim 1, wherein the content of the releasing segment is 3 to 60% by weight.
Claim 5
Dependent Claim
25 words
A heat transfer image-receiving sheet according to claim 1, wherein the dye receiving layer further comprises a dyeable resin and/or a linear polysiloxane release agent.
Claim 6
Dependent Claim
36 words
A heat transfer image-receiving sheet according to claim 4, wherein the amount of release agent is 1 to 20 parts by weight per 100 parts by weight of the total resin forming the dye receiving layer.
Claim 7
Dependent Claim
19 words
A heat transfer image-receiving sheet according to claim 1, wherein said graft copolymer comprises an acryl urethane silicone resin.
Claim 8
Dependent Claim
32 words
A heat transfer image-receiving sheet according to claim 6, wherein the weight ratio of acryl segment:urethane segment:silicone segment of the acryl urethane silicone resin is 10 to 80:10 to 80:10 to 50.
Claim 9
Dependent Claim
20 words
A heat transfer image-receiving sheet according to claim 6, wherein the acryl urethane silicone resin is cured by a catalyst.
Claim 10
Dependent Claim
37 words
A heat transfer image-receiving sheet according to claim 1, wherein the main chain of said graft copolymer comprises a copolymer of vinyl chloride, a (meth)acrylic acid monomer and a polymer having vinyl group at a terminal end.
Claim 11
Dependent Claim
35 words
A heat transfer image-receiving sheet according to claim 9, wherein the copolymerization ratio (weight) of the main chain of said graft copolymer is as shown below: vinyl chloride/(meth)acrylic acid monomer/polymer having vinyl group = 30-90/5-60/3-20.
Claim 12
Dependent Claim
24 words
A heat transfer image-receiving sheet according to claim 1, wherein an adhesion improving layer is provided between the dye receiving layer and the substrate.
Claim 13
Dependent Claim
83 words
A heat transfer image-receiving sheet comprising: a substrate sheet; a first dye receiving layer formed on a surface of said substrate sheet; and a second dye receiving layer formed on said first dye receiving layer, said second dye receiving layer comprising a graft copolymer including a main chain and at least one releasing segment graft-bonded thereto, said at least one releasing segment comprising at least one segment selected from the group consisting of polysiloxane segments, fluorinated carbon segments and long chain alkyl segments.
Claim 14
Dependent Claim
83 words
A heat transfer image-receiving sheet comprising: a substrate sheet; a first dye receiving layer formed on a surface of said substrate sheet; and a second dye receiving layer formed on said first dye receiving layer, said second dye receiving layer comprising a graft copolymer including a main chain and at least one releasing segment graft-bonded thereto, said at least one releasing segment comprising at least one segment selected from the group consisting of polysiloxane segments, fluorinated carbon segments and long chain alkyl segments.
References Cited (Backward Citations)
JPH01199997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-04 | 1994-08-06 | 1995-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-04 | 1998-08-06 | 1999-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-04 | 2002-08-06 | 2003-02-05 | $7700.00 | Window Closed / Lapsed |