Patent US5772746A successfully refreshed from Google Patents.
US5772746A
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US
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Ink jet recording liquid
Assignee: Artience Co Ltd
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Filing: 1997-03-31
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Granted: 1998-06-30
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Expires: 2017-03-31
Abstract
Abstract The present invention relates to an ink jet recording liquid obtained by dispersing a pigment in an aqueous medium, said aqueous medium comprising glycerol and 1,3-propanediol. The ink jet recording liquid of the present invention is capable of sustaining prolonged stable discharge onto the recording surface without clogging the nozzle of an ink jet printer and exhibits excellent storage stability.
Inventors
- 👤 Seiji Sawada
- 👤 Sunao Satake
- 👤 Yasuharu Iida
- 👤 Seiji Aida
- 👤 Yoshimitsu Ueno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:46
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/322; C09D11/324; C09D11/326
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
50 words
An ink jet recording liquid containing a pigment dispersed in an aqueous medium, said aqueous medium comprising glycerol and 1,3-propanediol; and an aqueous or water-dispersible vehicle resin in a ratio by weight from 0.1 to 15% as a resin solid to the total amount of the ink jet recording liquid.
Claim 2
Dependent Claim
50 words
An ink jet recording liquid containing a pigment dispersed in an aqueous medium, said aqueous medium comprising glycerol and 1,3-propanediol; and an aqueous or water-dispersible vehicle resin in a ratio by weight from 0.1 to 15% as a resin solid to the total amount of the ink jet recording liquid.
Claim 3
Dependent Claim
13 words
The ink jet recording liquid according to claim 1, further comprising a dispersant.
Claim 4
Dependent Claim
41 words
The ink jet recording liquid according to claim 2, wherein said dispersant is a resin dispersant comprising a resin selected from a group consisting of an aqueous acrylic resin, styrene-acryl copolymeric resin, polyester resin, polyamide resin, polyurethane, fluororesin, and mixtures thereof.
Claim 5
Dependent Claim
17 words
The ink jet recording liquid according to claim 3, wherein said resin dispersant comprises an acrylic resin.
Claim 6
Dependent Claim
16 words
The ink jet recording liquid according to claim 2, wherein said dispersant is an anionic surfactant.
Claim 7
Dependent Claim
72 words
The ink jet recording liquid according to claim 5, wherein said anionic surfactant is selected from a group consisting of fatty acid salts, alkylsulfonate ester salts, alkylarylsulfonate salts, alkylnaphthalenesulfonate salts, dialkylsulfonate salts, dialkylsulfosuccinate salts, alkyldiaryl ether disulfonate salts, alkylphosphate salts, polyoxyethylene alkyl ether sulfonate salts, polyoxyethylene alkylaryl ether sulfonate salts, naphthalene sulfonic acid formalin condensate, polyoxyethylene alkylphosphate ester salts, glycerol borate fatty acid esters, polyoxyethylene glycerol fatty acid esters, and mixtures thereof.
Claim 8
Dependent Claim
28 words
The ink jet recording liquid according to claim 1, wherein the ratio by weight of said glycerol to said 1,3-propanediol is in a range from 1:10 to 10:1.
Claim 9
Dependent Claim
42 words
The ink jet recording liquid according to claim 1, wherein the ratio by weight of the total amount of said glycerol and said 1,3-propanediol to the total amount of the ink jet recording liquid is in a range from 3 to 50%.
Claim 10
Dependent Claim
40 words
The ink jet recording liquid according to claim 1, wherein said vehicle resin is one of the compound selected from a group consisting of polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylamide, carboxyl-containing aqueous polyester, hydroxyl-containing cellulose resin, acrylic resin, and mixtures thereof.
Claim 11
Dependent Claim
52 words
The ink jet recording liquid according to claim 1, wherein said water-dispersible vehicle resin has a particle diameter of less than 0.4 μm and is one of the compound selected from a group consisting of an acrylic resin, vinyl acetate resin, butadiene resin, urethane resin, polyester resin, petroleum resin, and mixtures thereof.
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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) | 2001-06-29 | 2001-12-29 | 2002-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-29 | 2005-12-29 | 2006-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-29 | 2009-12-29 | 2010-06-30 | $7700.00 | Window Closed / Lapsed |