US5542970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoazo compound and recording liquid containing the same
Assignee: Canon Inc
•
Filing: 1995-06-06
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Granted: 1996-08-06
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Expires: 2015-06-06
Abstract
Abstract A monoazo compound of the general formula <IMAGE> (A) wherein; Y is hydrogen, methyl, methoxy, acetylamino, or nitro, or Y, cojointly with the carbon atom located in the benzene ring B at the 3-position with respect to the N=N group, may form a benzene ring; X is acetyl, benzoyl, p-toluenesulfonyl, or 4-chloro-6-hydroxy-1,3,5-triazine-2-yl; and M1, M2 and M3 each are a base selected from alkali metal atom, ammonium cation and amine salt cation. A recording liquid comprising a coloring matter, which is an image-forming component, and a liquid medium for dissolving or dispersing the coloring matter, said recording liquid being characterized by containing as coloring matter the above-mentioned monoazo compound.
Inventors
- 👤 Konoe Miura
- 👤 Hiroshi Takimoto
- 👤 Tokuya Ohta
- 👤 Masatsune Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:28
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/24; C09B29/28; C09B29/30; C09B29/0003; C09B29/0007; C09B29/0014; C09B62/00; C09B62/02; C09B62/04; C09B62/08; C09B62/085; C09B67/00; C09B67/0071; C09B67/0072; C09B67/0073
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
84 words
An ink-jet recording liquid comprising an image forming coloring matter component and a liquid medium comprising water and a water-miscible organic solvent for dissolving or dispersing the coloring matter, said recording liquid being characterized by containing as said coloring matter a desalted monoazo compound of the formula ##STR55## wherein Y is hydrogen, methyl or methoxy; X is p-toluenesulfonyl; and M 1 , M 2 , and M 3 are selected from the group consisting of alkali metal atom, ammonium cation, and amine salt cation.
Claim 2
Dependent Claim
84 words
An ink-jet recording liquid comprising an image forming coloring matter component and a liquid medium comprising water and a water-miscible organic solvent for dissolving or dispersing the coloring matter, said recording liquid being characterized by containing as said coloring matter a desalted monoazo compound of the formula ##STR55## wherein Y is hydrogen, methyl or methoxy; X is p-toluenesulfonyl; and M 1 , M 2 , and M 3 are selected from the group consisting of alkali metal atom, ammonium cation, and amine salt cation.
Claim 3
Dependent Claim
30 words
The recording liquid of claim 1, wherein the content of a dye represented by the formula (A) is 0.1-20% by weight based on the whole weight of the recording liquid.
Claim 4
Dependent Claim
48 words
The recording liquid of claim 1, wherein said water-miscible organic solvent is selected from the group consisting of C 1 -C 4 alcohols, amides, ketones, ketone alcohols, ethers, nitrogen-containing heterocyclic ketones, polyalkylene glycols, C 2 -C 6 alkylene glycols, 1,2,6-hexanetriol, glycerol, and lower alkyl ethers of polyhydric alcohols.
Claim 5
Dependent Claim
38 words
The recording liquid of claim 3, wherein the content of said water-miscible organic solvent is 20 to 50 weight percent and the content of said coloring matter is 0.1 to 20 weight percent of the whole recording liquid.
Claim 6
Dependent Claim
12 words
The recording liquid of claim 1, wherein Y is methyl or methoxy.
Claim 7
Dependent Claim
10 words
The recording liquid of claim 5, wherein Y is methyl.
Claim 8
Dependent Claim
82 words
An ink-jet recording liquid comprising a magenta image forming coloring matter component and a liquid medium comprising water and a water-miscible organic solvent for dissolving or dispersing the coloring matter, said recording liquid being characterized by containing as said coloring matter a desalted monoazo compound of the formula ##STR56## wherein Y is methyl; X is benzoyl; and M 1 , M 2 , and M 3 are selected from the group consisting of alkali metal atom, ammonium cation, and amine salt cation.
Claim 9
Dependent Claim
82 words
An ink-jet recording liquid comprising a magenta image forming coloring matter component and a liquid medium comprising water and a water-miscible organic solvent for dissolving or dispersing the coloring matter, said recording liquid being characterized by containing as said coloring matter a desalted monoazo compound of the formula ##STR56## wherein Y is methyl; X is benzoyl; and M 1 , M 2 , and M 3 are selected from the group consisting of alkali metal atom, ammonium cation, and amine salt cation.
Claim 10
Dependent Claim
29 words
The recording liquid of claim 7, wherein the content of a dye represented by the formula is 0.1-20% by weight based on the whole weight of the recording liquid.
Claim 11
Dependent Claim
48 words
The recording liquid of claim 7, wherein said water-miscible organic solvent is selected from the group consisting of C 1 -C 4 alcohols, amides, ketones, ketone alcohols, ethers, nitrogen-containing heterocyclic ketones, polyalkylene glycols, C 2 -C 6 alkylene glycols, 1,2,6-hexanetriol, glycerol, and lower alkyl ethers of polyhydric alcohols.
Claim 12
Dependent Claim
38 words
The recording liquid of claim 9, wherein the content of said water-miscible organic solvent is 20 to 50 weight percent and the content of said coloring matter is 0.1 to 20 weight percent of the whole recording liquid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-08-06 | 2000-02-05 | 2000-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-06 | 2004-02-05 | 2004-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-06 | 2008-02-05 | 2008-08-06 | $7700.00 | Window Closed / Lapsed |