US5985017A
Expired / Lapsed
US
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Potassium N-methyl-N-oleoyl taurate as a dispersant in pigmented ink jet inks
Assignee: Eastman Kodak Co
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Filing: 1998-10-27
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Granted: 1999-11-16
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Expires: 2018-10-27
Abstract
Abstract An ink jet printing method is described. It comprising the steps of: providing an ink jet printer that is responsive to digital data signals; loading the printer with ink receptive substrates; loading the printer with an aqueous ink jet ink, said ink A) comprising a pigment, an aqueous carrier and potassium N-methyl-N-oleoyl taurate; and B) having a surface tension of 20 to 60 dynes/cm at 25° C., a viscosity of 1 to 10 centipoise at 25° C. and a particle size of less than 1.0 μm; and printing on the ink receptive substrate in response to the digital data signals.
Inventors
- 👤 Douglas E. Bugner
- 👤 Alexandra D. Bermel
- 👤 William Gruenbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:48
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/324; C09D11/326; Y; Y10; Y10S; Y10S977/00; Y10S977/902
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
97 words
An ink jet printing method, comprising the steps of: providing an ink jet printer that is responsive to digital data signals; loading the printer with ink receptive substrates; loading the printer with an aqueous ink jet ink, said ink A) comprising a pigment, an aqueous carrier and potassium N-methyl-N-oleoyl taurate; and B) having a surface tension of 20 to 60 dynes/cm at 25° C., a viscosity of 1 to 10 centipoise at 25° C. and a particle size of less than 1.0 μm; and printing on the ink receptive substrate in response to the digital data signals.
Claim 2
Dependent Claim
97 words
An ink jet printing method, comprising the steps of: providing an ink jet printer that is responsive to digital data signals; loading the printer with ink receptive substrates; loading the printer with an aqueous ink jet ink, said ink A) comprising a pigment, an aqueous carrier and potassium N-methyl-N-oleoyl taurate; and B) having a surface tension of 20 to 60 dynes/cm at 25° C., a viscosity of 1 to 10 centipoise at 25° C. and a particle size of less than 1.0 μm; and printing on the ink receptive substrate in response to the digital data signals.
Claim 3
Dependent Claim
28 words
The ink jet printing method of claim 1 comprising from 0.1 to 10.0 weight percent of a pigment and from 0.05 to 10.0 weight percent potassium N-methyl-N-oleoyl taurate.
Claim 4
Dependent Claim
35 words
The ink jet printing method of claim 1 wherein the pigment is selected from Pigment Black 7, Pigment Red 122, Pigment Blue 15, Pigment Yellow 139 and mixtures of two or more of such pigments.
Claim 5
Dependent Claim
13 words
The ink jet printing method of claim 1 wherein organic pigments are included.
Claim 6
Dependent Claim
58 words
The ink jet printing method of claim 1 wherein the ink further comprises a cosolvent selected from the group consisting of methyl alcohol, ethyl alcohol, n-propyl alcohol, iso-propyl alcohol, n-butyl alcohol, iso-butyl alcohol, sec-butyl alcohol, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,5-pentanediol, thiodiglycol, 2-ethyl-2-hydroxymethylpropane -1,3-diol, 2-pyrrolidone, N-methyl-2-pyrrolidone and mixtures of two or more of such solvents.
Claim 7
Dependent Claim
49 words
An aqueous ink jet ink comprising A) a pigment, an aqueous carrier and potassium N-methyl-N-oleoyl taurate; and B) having a surface tension of 20 to 60 dynes/cm at 25° C., a viscosity of 1 to 10 centipoise at 25° C. and a particle size of less than 1.0 μm.
Claim 8
Dependent Claim
49 words
An aqueous ink jet ink comprising A) a pigment, an aqueous carrier and potassium N-methyl-N-oleoyl taurate; and B) having a surface tension of 20 to 60 dynes/cm at 25° C., a viscosity of 1 to 10 centipoise at 25° C. and a particle size of less than 1.0 μm.
Claim 9
Dependent Claim
25 words
The ink of claim 6 comprising from 0.1 to 10.0 weight percent of a pigment and from 0.05 to 10.00 weight percent potassium N-methyl-N-oleoyl taurate.
Claim 10
Dependent Claim
30 words
The ink of claim 6 wherein the pigment is selected from Pigment Black 7, Pigment Red 122, bis(phthalocyanylalumino)tetraphenyldisiloxane, Pigment Yellow 74 and mixtures of two or more of such pigments.
Claim 11
Dependent Claim
10 words
The ink of claim 6 wherein organic pigments are included.
Claim 12
Dependent Claim
51 words
The ink of claim 6 further comprising a cosolvent selected from the group consisting of methyl alcohol, ethyl alcohol, n-propyl alcohol, iso-proplyl alcohol, n-butyl alcohol, iso-butyl alcohol, sec-butyl alcohol, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,5-pentanediol, thiodiglycol, 2-ethyl-2-hydroxymethylpropane-1,3-diol, 2-pyrrolidone, N-methyl-2-pyrrolidone and mixtures of two or more of such solvents.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2002-11-15 | 2003-05-17 | 2003-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-15 | 2007-05-17 | 2007-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-15 | 2011-05-17 | 2011-11-16 | $7700.00 | Window Closed / Lapsed |