US4878946A
Expired / Lapsed
US
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Hot-melt type ink for thermal ink-jet printer
Assignee: DIC Corp
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Filing: 1988-02-26
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Granted: 1989-11-07
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Expires: 2008-02-26
Abstract
Abstract A hot-melt type ink for thermal ink-jet printers comprises an oil-soluble dye dissolved in at least one compound selected from the group consisting of a phosphoric acid ester, an aromatic sulfonamide, a hydroxybenzoic acid ester and a phthalic acid ester, the compound being in solid state at room temperature.
Inventors
- 👤 Isao Tabayashi
- 👤 Hiroshi Harada
- 👤 Sadahiro Inoue
- 👤 Hiroshi Fukutomi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:53
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/34
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
47 words
A hot-melt type ink for thermal ink-jet printers which comprises an oil-soluble dye dissolved in at least one compound selected from the group consisting of a phosphoric acid ester, a hydroxybenzoic acid ester and a phthalic acid ester, the compound being in solid state at room temperature.
Claim 2
Dependent Claim
47 words
A hot-melt type ink for thermal ink-jet printers which comprises an oil-soluble dye dissolved in at least one compound selected from the group consisting of a phosphoric acid ester, a hydroxybenzoic acid ester and a phthalic acid ester, the compound being in solid state at room temperature.
Claim 3
Dependent Claim
14 words
An ink according to claim 1 wherein the phosphoric acid ester is triphenyl phosphate.
Claim 4
Dependent Claim
14 words
An ink according to claim 1 wherein the hydroxybenzoic acid ester is phenyl salicylate.
Claim 5
Dependent Claim
14 words
An ink according to claim 1 wherein the hydroxybenzcic acid ester is n-butyl p-hydroxybenzoate.
Claim 6
Dependent Claim
14 words
An ink according to claim 1 wherein the hydroxybenzoic acid ester is n-heptyl p-hydroxybenzoate.
Claim 7
Dependent Claim
14 words
An ink according to claim 1 wherein the phthalic acid ester is dicyclohexyl phthalate.
Claim 8
Dependent Claim
22 words
An ink according to any one of the preceding claims which contains the oil-soluble dye of an amount of 0.1-10 wt. %
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |