US4985397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal image transfer recording system
Assignee: Ricoh Co Ltd
•
Filing: 1990-07-26
•
Granted: 1991-01-15
•
Expires: 2010-07-26
Abstract
Abstract A thermal image transfer recording system comprises a sublimation type thermal image transfer recording medium in combination with an image receiving medium comprising a substrate and a dye receiving layer formed thereon, which comprises, as the principal components, (1) a vinyl chloride-based resin containing active hydrogens and (2) an isocyanate compound.
Inventors
- 👤 Hiroyuki Uemura
- 👤 Akira Suzuki
- 👤 Masaru Shimada
- 👤 Hidehiro Mochizuki
- 👤 Naoya Morohoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:11
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5254; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/31507; Y10T428/31551; Y10T428/31652; Y10T428/31663; Y10T428/31786; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
54 words
A thermal image transfer recording system, comprising: a sublimation type thermal image transfer recording medium in combination with an image receiving medium comprising a substrate and a dye receiving layer formed thereon, said dye receiving layer comprising, as the principal components, (1) a vinyl chloride-based resin containing active hydrogens and (2) an isocyanate compound.
Claim 2
Dependent Claim
54 words
A thermal image transfer recording system, comprising: a sublimation type thermal image transfer recording medium in combination with an image receiving medium comprising a substrate and a dye receiving layer formed thereon, said dye receiving layer comprising, as the principal components, (1) a vinyl chloride-based resin containing active hydrogens and (2) an isocyanate compound.
Claim 3
Dependent Claim
26 words
The thermal image transfer recording system as claimed in claim 1, wherein said dye receiving layer of said image receiving medium further comprises a polyester resin.
Claim 4
Dependent Claim
40 words
The thermal image transfer recording system as claimed in claim 1, wherein the amount of said polyester resin in said dye receiving layer is 50 to 100 parts by weight per 100 parts by weight of said vinyl chloride-based resin.
Claim 5
Dependent Claim
34 words
The thermal image transfer recording system as claimed in claim 1, wherein said vinyl chloride-based resin containing active hydrogens in said image receiving layer is a vinyl chloride-vinyl acetate copolymer modified with polyvinyl alcohol.
Claim 6
Dependent Claim
41 words
The thermal image transfer recording system as claimed in claim 1, wherein said isocyanate compound is selected from the group consisting of tolylene diisocyanate, hexamethylene diiso-cyanate, 4,4-diphenylmethane diisocyanate, triphenylmethane triisocyanate, and addition products of hexatriol with any of said isocyanate compounds.
Claim 7
Dependent Claim
58 words
The thermal image transfer recording system as claimed in claim 1, wherein the amount ratio of said vinyl chloride-based resin to said isocyanate compound is such that the molar ratio of the NCO groups in said isocyanate compound to the groups having an active hydrogen in said vinyl chloride-based resin is in the range of 0.2 to 2.0.
Claim 8
Dependent Claim
19 words
The thermal image transfer recording system as claimed in claim 1, wherein said substrate comprises a polyethylene terephthalate film.
Claim 9
Dependent Claim
36 words
The thermal image transfer recording system as claimed in claim 1, wherein the coating amount of said dye receiving layer onto said substrate is 0.1 to 20 g/m 2 in terms of the solid components thereof.
Claim 10
Dependent Claim
28 words
The thermal image transfer recording system as claimed in claim 1, wherein said dye receiving layer further comprises a resin which can be dyed with a sublimation-type dye.
Claim 11
Dependent Claim
31 words
The thermal image transfer recording system as claimed in claim 9, wherein said resin is selected from the group consisting of polycarbonate resin, styrene resin, vinyl chloride resin and silicone resin.
Claim 12
Dependent Claim
18 words
The thermal image transfer recording system as claimed in claim 9, wherein said resin is vinyl chloride resin.
Claim 13
Dependent Claim
31 words
The thermal image transfer recording system as claimed in claim 9, wherein the amount of said resin is 0.1 to 1 time that of said vinyl chloride-based resin containing active hydrogens.
Claim 14
Dependent Claim
38 words
The thermal image transfer recording system as claimed in claim 1, wherein said dye receiving layer of said image receiving medium further comprises a silicone selected from the group consisting of amino-modified silicone, expoxy-modified silicone and alkyd-modified silicone.
Claim 15
Dependent Claim
45 words
The thermal image transfer recording system as claimed in claim 13, wherein the amount of said silicone is 10 wt. % or less of the total weight of said vinyl chloride-based resin containing active hydrogens and other resin components contained in said dye receiving layer.
Claim 16
Dependent Claim
37 words
The thermal image transfer recording system as claimed in claim 1, wherein said dye receiving layer of said image receiving medium further comprises a filler selected from the group consisting of silica, titanium oxide and calcium carbonate.
Claim 17
Dependent Claim
45 words
The thermal image transfer recording system as claimed in claim 15, wherein the amount of said filler is 5 to 60 wt. % of the total weight of said vinyl chloride-based resin containing active hydrogens and other resin components contained in said dye receiving layer.
References Cited (Backward Citations)
US3820686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-14 | 1994-07-16 | 1995-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-14 | 1998-07-16 | 1999-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-14 | 2002-07-16 | 2003-01-15 | $7700.00 | Window Closed / Lapsed |