US4931095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzoate inks
Assignee: iCad Inc
•
Filing: 1988-11-15
•
Granted: 1990-06-05
•
Expires: 2008-11-15
Abstract
Abstract An ink for hot-melt ink-jet printing comprising a benzoate solvent which is solid at room temperature. This ink is suitable for jetting onto an opaque substrate such as paper for directly readable print, or onto a transparent substrate, such as an acetate or polycarbonate sheet, to make a projectable transparency.
Inventors
- 👤 Michael T. Nowak
- 👤 Michael L. Demers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:17
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/34
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
43 words
A hot-melt ink for ink jet printers comprising an organic solvent comprising one or more benzoates, said solvent having a melting point less than about 175° C. having a viscosity level less than 30 centpoise at jetting temperatures and further containing a dye.
Claim 2
Dependent Claim
43 words
A hot-melt ink for ink jet printers comprising an organic solvent comprising one or more benzoates, said solvent having a melting point less than about 175° C. having a viscosity level less than 30 centpoise at jetting temperatures and further containing a dye.
Claim 3
Dependent Claim
14 words
The ink of claim 1 comprising about 75 to 90 wt % pentaerythritol tetrabenzoate.
Claim 4
Dependent Claim
14 words
The ink of claim 2 further comprising about 25 to 10 wt % polymethylstyrene.
Claim 5
Dependent Claim
14 words
The ink of claim 3 further comprising up to about 2 wt % dye.
Claim 6
Dependent Claim
13 words
The ink of claim 4 comprising about 0.25 to 1.25 wt % dye.
Claim 7
Dependent Claim
21 words
The ink of claim 2 further comprising about 20-5 wt % sucrose benzoate, and up to 5 wt % glyceryl tribenzoate.
Claim 8
Dependent Claim
14 words
The ink of claim 6 further comprising up to about 2 wt % dye
Claim 9
Dependent Claim
13 words
The ink of claim 7 comprising about 0.25 to 1.25 wt % dye.
Claim 10
Dependent Claim
24 words
A process for hot-melt ink-jet printing comprising jetting an ink comprising a solid organic solvent comprising one or more benzoate derivatives onto a substrate.
Claim 11
Dependent Claim
24 words
A process for hot-melt ink-jet printing comprising jetting an ink comprising a solid organic solvent comprising one or more benzoate derivatives onto a substrate.
Claim 12
Dependent Claim
32 words
A transparency for projected viewing comprising a transparent sheet and a printed image formed by hot-melt ink jet printing of an ink comprising an organic solvent comprising one or more benzoate derivatives.
Claim 13
Dependent Claim
32 words
A transparency for projected viewing comprising a transparent sheet and a printed image formed by hot-melt ink jet printing of an ink comprising an organic solvent comprising one or more benzoate derivatives.
Claim 14
Dependent Claim
36 words
A hot-melt ink for ink jet printers comprising an organic solvent comprising one or more benzoates, said solvent having a melting point less than about 175° C. further containing about 25 to 10 wt % polymethylstyrene.
Claim 15
Dependent Claim
36 words
A hot-melt ink for ink jet printers comprising an organic solvent comprising one or more benzoates, said solvent having a melting point less than about 175° C. further containing about 25 to 10 wt % polymethylstyrene.
References Cited (Backward Citations)
JPS5398770A
Cited
JPS5525463A
Cited
US4426227A
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US4380518A
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US4585483A
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US4583104A
Cited
US4684956A
Cited
US4628000A
Cited
US4756950A
Cited
US4692188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-04 | 1993-12-04 | 1994-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-04 | 1997-12-04 | 1998-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-04 | 2001-12-04 | 2002-06-05 | $7700.00 | Window Closed / Lapsed |