Patent US4808227A successfully refreshed from Google Patents.
US4808227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-solid ink
Assignee: Canon Inc
•
Filing: 1987-07-29
•
Granted: 1989-02-28
•
Expires: 2007-07-29
Abstract
Abstract In a semi-solid ink to be used in the heat transfer recording method in which a semi-solid ink is heated to melt to flow out through passage holes and said semi-solid ink flowed out is transferred onto a recording medium, it has a viscosity of 100 to 10000 cps as measured by means of a cone disc rotatory viscometer under the conditions of a temperature of 25° C. and a shear rate of 2000 S -1 .
Inventors
- 👤 Toshiya Yuasa
- 👤 Hiroshi Fukumoto
- 👤 Akihiro Mouri
- 👤 Shuzo Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:19
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38207; B41M5/38221
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
121 words
A semi-solid heat transfer recording ink for recording, wherein said semi-solid ink is heated so as to melt and flow through passage holes and transfer onto a recording medium, said semi-solid ink having a viscosity of 100 to 1000 cps as measured by means of a cone disc rotatory viscometer under the conditions of a temperature of 25° C. and a shear rate of 2000 S -1 and a thermal conductivity of from 1.5×10 -4 to 9.7×10 -2 cal(cm·sec·deg) -1 at a temperature of 25° C., and containing from 10-70 wt % of a wax and from 30-90 wt % of at least one selected from the group consisting of a naphthenic hydrocarbon, a modified silicone oil, and a paraffinic hydrocarbon.
Claim 2
Dependent Claim
121 words
A semi-solid heat transfer recording ink for recording, wherein said semi-solid ink is heated so as to melt and flow through passage holes and transfer onto a recording medium, said semi-solid ink having a viscosity of 100 to 1000 cps as measured by means of a cone disc rotatory viscometer under the conditions of a temperature of 25° C. and a shear rate of 2000 S -1 and a thermal conductivity of from 1.5×10 -4 to 9.7×10 -2 cal(cm·sec·deg) -1 at a temperature of 25° C., and containing from 10-70 wt % of a wax and from 30-90 wt % of at least one selected from the group consisting of a naphthenic hydrocarbon, a modified silicone oil, and a paraffinic hydrocarbon.
Claim 3
Dependent Claim
19 words
A semi-solid ink according to claim 1, wherein said semi-solid ink has a viscosity of 200 to 5000 cps.
Claim 4
Dependent Claim
83 words
A semi-solid ink according to claim 1, wherein said semi-solid ink has a viscosity of 100 to 10000 cps as measured by means of a cone disc rotatory viscometer under the conditions of a temperature of 25° C. and a shear rate of 2000 S -1 , and a viscosity of 1 to 500 cps as measured by means of said cone disc rotatory viscometer under the conditions of a temperature of 120° C. and a shear rate of 2000 S -1 .
Claim 5
Dependent Claim
19 words
A semi-solid ink according to claim 1, wherein said wax has a melting point of 130° C. or lower.
Claim 6
Dependent Claim
19 words
A semi-solid ink according to claim 4, wherein said wax has a melting point of 40° to 120° C.
Claim 7
Dependent Claim
22 words
A semi-solid ink according to claim 1, wherein said wax has a melt viscosity of 4 to 200 cps at 130° C.
Claim 8
Dependent Claim
16 words
A semi-solid ink according to claim 1, wherein said naphthenic hydrocarbon is liquid at ordinary temperature.
Claim 9
Dependent Claim
22 words
A semi-solid ink according to claim 1, wherein said naphthenic hydrocarbon has a viscosity of 2000 cps or lower at 40° C.
Claim 10
Dependent Claim
22 words
A semi-solid ink according to claim 8, wherein said naphthenic hydrocarbon has a viscosity of 500 cps or lower at 40° C.
Claim 11
Dependent Claim
23 words
A semi-solid ink according to claim 1, wherein said modified silicone oil has a viscosity of 2500 cps or lower at 25° C.
Claim 12
Dependent Claim
23 words
A semi-solid ink according to claim 10, wherein said modified silicione oil has a viscosity of 500 cps or lower at 25° C.
Claim 13
Dependent Claim
20 words
A semi-solid ink according to claim 1, wherein said paraffinic hydrocarbon has a boiling point of 150° C. or higher.
Claim 14
Dependent Claim
98 words
A semi-solid heat transfer ink for recording, wherein said semi-solid ink is heated so as to melt and flow through passage holes and transfer onto a recording medium, said semi-solid ink having a viscosity of 100 to 10000 cps as measured by means of a cone disc rotatory viscometer under the conditions of a temperature of 25° C. and a shear rate of 2000 S -1 , and thermal conductivity of from 1.5×10 -4 to 9.7×10 -2 cal(cm·sec·deg) -1 at a temperature of 25° C., and containing from 50 to 90 wt. % petroleum resin as a binder.
Claim 15
Dependent Claim
98 words
A semi-solid heat transfer ink for recording, wherein said semi-solid ink is heated so as to melt and flow through passage holes and transfer onto a recording medium, said semi-solid ink having a viscosity of 100 to 10000 cps as measured by means of a cone disc rotatory viscometer under the conditions of a temperature of 25° C. and a shear rate of 2000 S -1 , and thermal conductivity of from 1.5×10 -4 to 9.7×10 -2 cal(cm·sec·deg) -1 at a temperature of 25° C., and containing from 50 to 90 wt. % petroleum resin as a binder.
Claim 16
Dependent Claim
22 words
A semi-solid ink according to claim 13, wherein said petroleum resin is a resin containing coumarone or indene or a copolymer thereof.
Claim 17
Dependent Claim
64 words
A semi-solid ink according to claim 14, wherein a resin containing coumarone or indene or a copolymer thereof is represented by the following structural formula: ##STR5## wherein l is an integer of 0 to 20, m is an integer of 0 to 25, n is an integer of 0 to 28, with proviso that l and m cannot be 0 at the same time.
Claim 18
Dependent Claim
19 words
A semi-solid ink according to claim 15, wherein said resin has an average molecular weight of 300 to 2500.
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) | 1992-02-28 | 1992-08-29 | 1993-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-28 | 1996-08-29 | 1997-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-28 | 2000-08-29 | 2001-02-28 | $7700.00 | Window Closed / Lapsed |