US5254159A
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Ink compositions
Assignee: Xerox Corp
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Filing: 1992-12-17
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Granted: 1993-10-19
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Expires: 2012-12-17
Abstract
Abstract Disclosed is an ink composition which comprises water, an anionic dye, and a compound selected from the group consisting of N,N'-bis(3-aminopropyl)-1,2-ethylenediamine, 1,4-bis(3-aminopropyl)piperazine, N,N'-bis(3-aminopropyl)-1,3-propanediamine, N,N'-bis(2-amionethyl)-1,3-propanediamine, N,N'-bis(3-aminopropyl)-1,4-butanediamine, ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, nitrilotrisethylamine, N,N'-(diaminoethyl)piperazine, piperazinylethylethylenediamine, aminoethyltriethylenetetramine, aminoethylpiperazinylethylethylenediamine, piperazinylethyldiethylenetriamine, pentaethylene hexamine and mixtures thereof, said ink composition having a pH of more than about 8 and less than about 9. Further disclosed is an ink composition comprises water, a dye, a polyamine compound, and a monoamine compound of the general formula ##STR1## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl. In one embodiment, the polyamine compound is a first generation dendrimer compound having terminal primary amine groups.
Inventors
- 👤 Kurt B. Gundlach
- 👤 Geoffrey A. R. Nobes
- 👤 Marcel P. Breton
- 👤 Richard L. Colt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:28
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
10 words
An ink composition which comprises water, a dye, and N,N'-bis(3-aminopropyl)-1,2-ethylenediamine.
Claim 2
Dependent Claim
10 words
An ink composition which comprises water, a dye, and N,N'-bis(3-aminopropyl)-1,2-ethylenediamine.
Claim 3
Dependent Claim
26 words
An ink composition according to claim 1 wherein the ink also contains sulfolane and a material selected from the group consisting of 2-pyrrolidinone and N-methyl pyrrolidone.
Claim 4
Dependent Claim
14 words
An ink composition according to claim 1 wherein the ink also contains a urea.
Claim 5
Dependent Claim
14 words
An ink composition according to claim 3 wherein the ink also contains a glycol.
Claim 6
Dependent Claim
14 words
An ink composition according to claim 1 wherein the dye is an anionic dye.
Claim 7
Dependent Claim
21 words
An ink composition according to claim 1 wherein the dye is selected from the group consisting of ##STR29## and mixtures thereof.
Claim 8
Dependent Claim
29 words
An ink composition according to claim 1 wherein the polyamine compound is present in an amount of from about 0.05 to about 5 percent by weight of the ink.
Claim 9
Dependent Claim
20 words
An ink composition according to claim 1 wherein the pH of the ink is from about 7 to about 10.
Claim 10
Dependent Claim
21 words
An ink composition according to claim 1 wherein the pH of the ink is more than 8 and less than 9.
Claim 11
Dependent Claim
69 words
An ink composition which comprises water, a dye, a polyamine compound selected from the group consisting of N,N'-bis(3-aminopropyl)-1,2-ethylenediamine, 1,4-bis(3-aminopropyl)piperazine, N,N'-bis(3-aminopropyl)-1,3-propanediamine, N,N'-bis(2-aminoethyl)-1,3-propanediamine, N,N'-bis(3-aminopropyl)-1,4-butanediamine, ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, nitrilotrisethylamine, N,N'-(diaminoethyl)piperazine, piperazinylethylethylenediamine, aminoethyltriethylenetetramine, aminoethylpiperazinylethylethylenediamine, piperazinylethyldiethylenetriamine, pentaethylene hexamine, and mixtures thereof, and a monoamine compound of the general formula ##STR30## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl.
Claim 12
Dependent Claim
69 words
An ink composition which comprises water, a dye, a polyamine compound selected from the group consisting of N,N'-bis(3-aminopropyl)-1,2-ethylenediamine, 1,4-bis(3-aminopropyl)piperazine, N,N'-bis(3-aminopropyl)-1,3-propanediamine, N,N'-bis(2-aminoethyl)-1,3-propanediamine, N,N'-bis(3-aminopropyl)-1,4-butanediamine, ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, nitrilotrisethylamine, N,N'-(diaminoethyl)piperazine, piperazinylethylethylenediamine, aminoethyltriethylenetetramine, aminoethylpiperazinylethylethylenediamine, piperazinylethyldiethylenetriamine, pentaethylene hexamine, and mixtures thereof, and a monoamine compound of the general formula ##STR30## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl.
Claim 13
Dependent Claim
62 words
An ink composition which comprises water, a dye, a polyamine compound, and a monoamine compound of the general formula ##STR31## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl, wherein the polyamine compound is selected from the group consisting of N,N'-bis(3-aminopropyl)-1,2-ethylenediamine, 1,4-bis(3-aminopropyl)piperazine, N,N'-bis(3-aminopropyl)-1,3-propanediamine, N,N'-bis(2-aminoethyl)-1,3-propanediamine, N,N'-bis(3-aminopropyl)-1,4-butanediamine, and mixtures thereof.
Claim 14
Dependent Claim
62 words
An ink composition which comprises water, a dye, a polyamine compound, and a monoamine compound of the general formula ##STR31## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl, wherein the polyamine compound is selected from the group consisting of N,N'-bis(3-aminopropyl)-1,2-ethylenediamine, 1,4-bis(3-aminopropyl)piperazine, N,N'-bis(3-aminopropyl)-1,3-propanediamine, N,N'-bis(2-aminoethyl)-1,3-propanediamine, N,N'-bis(3-aminopropyl)-1,4-butanediamine, and mixtures thereof.
Claim 15
Dependent Claim
59 words
An ink composition which comprises water, a dye, a polyamine compound, and a monoamine compound of the general formula ##STR32## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl, wherein the polyamine compound is selected from the group consisting of N,N'-bis(3-aminopropyl)-1,2-ethylenediamine, 1,4-bis(3-aminopropyl)piperazine, and mixtures thereof.
Claim 16
Dependent Claim
59 words
An ink composition which comprises water, a dye, a polyamine compound, and a monoamine compound of the general formula ##STR32## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl, wherein the polyamine compound is selected from the group consisting of N,N'-bis(3-aminopropyl)-1,2-ethylenediamine, 1,4-bis(3-aminopropyl)piperazine, and mixtures thereof.
Claim 17
Dependent Claim
49 words
An ink composition which comprises water, a dye, a polyamine compound, and a monoamine compound of the general formula ##STR33## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl, wherein the polyamine compound is N,N'-bis(3-aminopropyl)-1,2-ethylenediamine.
Claim 18
Dependent Claim
49 words
An ink composition which comprises water, a dye, a polyamine compound, and a monoamine compound of the general formula ##STR33## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl, wherein the polyamine compound is N,N'-bis(3-aminopropyl)-1,2-ethylenediamine.
Claim 19
Dependent Claim
29 words
An ink composition according to claim 10 wherein the polyamine compound is present in an amount of from about 0.05 to about 5 percent by weight of the ink.
Claim 20
Dependent Claim
26 words
An ink composition according to claim 10 wherein the ink also contains sulfolane and a material selected from the group consisting of 2-pyrrolidinone and N-methyl pyrrolidone.
Claim 21
Dependent Claim
14 words
An ink composition according to claim 10 wherein the ink also contains a urea.
Claim 22
Dependent Claim
14 words
An ink composition according to claim 16 wherein the ink also contains a glycol.
Claim 23
Dependent Claim
14 words
An ink composition according to claim 10 wherein the dye is an anionic dye.
Claim 24
Dependent Claim
21 words
An ink composition according to claim 10 wherein the dye is selected from the group consisting of ##STR34## and mixtures thereof.
Claim 25
Dependent Claim
20 words
An ink composition according to claim 10 wherein the pH of the ink is from about 7 to about 10.
Claim 26
Dependent Claim
21 words
An ink composition according to claim 10 wherein the pH of the ink is more than 8 and less than 9.
Claim 27
Dependent Claim
39 words
An ink composition according to claim 10 wherein the monoamine is selected from the group consisting of ammonia, ammonium salts, methylamine, diethylamine, triethylamine, tris(hydroxymethyl) aminomethane, tris[2-(2-methoxyethoxy)ethyl]amine, taurine, 2-aminoethylphosphonic acid, 4-aminobutyric acid, 3-aminopropyl triethoxylsilane, 2-aminoethylthiol, ethanolamine, triethanolamine, and mixtures thereof.
Claim 28
Dependent Claim
28 words
An ink composition according to claim 10 wherein the monoamine is present in an amount of from about 0.05 to about 5 percent by weight of the ink.
Claim 29
Dependent Claim
100 words
An ink composition which comprises water, a dye, a first generation dendrimer compound having terminal primary amine groups, and a monoamine compound selected from the group consisting of (a) those of the general formula ##STR35## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl wherein the substituents are selected from the group consisting of carboxylic acid, sulfonic acid, phosphonic acid, ether, and siloxy; (b) those of the general formula ##STR36## wherein R 1 , R 2 , and R 3 are all hydrogen; and mixtures thereof.
Claim 30
Dependent Claim
100 words
An ink composition which comprises water, a dye, a first generation dendrimer compound having terminal primary amine groups, and a monoamine compound selected from the group consisting of (a) those of the general formula ##STR35## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl wherein the substituents are selected from the group consisting of carboxylic acid, sulfonic acid, phosphonic acid, ether, and siloxy; (b) those of the general formula ##STR36## wherein R 1 , R 2 , and R 3 are all hydrogen; and mixtures thereof.
Claim 31
Dependent Claim
22 words
An ink composition according to claim 24 wherein the dendrimer compound is a first generation dendrimer of ethylenediamine of the formula ##STR37##
Claim 32
Dependent Claim
29 words
An ink composition according to claim 24 wherein the dendrimer compound is present in an amount of from about 0.1 to about 10 percent by weight of the ink.
Claim 33
Dependent Claim
26 words
An ink composition according to claim 24 wherein the ink also contains sulfolane and a material selected from the group consisting of 2-pyrrolidione and N-methyl pyrrolidone.
Claim 34
Dependent Claim
14 words
An ink composition according to claim 24 wherein the ink also contains a urea.
Claim 35
Dependent Claim
14 words
An ink composition according to claim 28 wherein the ink also contains a glycol.
Claim 36
Dependent Claim
14 words
An ink composition according to claim 24 wherein the dye is an anionic dye.
Claim 37
Dependent Claim
21 words
An ink composition according to claim 24 wherein the dye is selected from the group consisting of ##STR38## and mixtures thereof.
Claim 38
Dependent Claim
20 words
An ink composition according to claim 24 wherein the pH of the ink is from about 7 to about 10.
Claim 39
Dependent Claim
21 words
An ink composition according to claim 24 wherein the pH of the ink is more than 8 and less than 9.
Claim 40
Dependent Claim
34 words
An ink composition according to claim 24 wherein the monoamine is selected from the group consisting of ammonia, ammonium salts, methylamine, diethylamine, triethylamine, taurine, 2-aminoethylphosphonic acid, 4-aminobutyric acid, 3-aminopropyl triethoxysilane, 2-aminoethylthiol, and mixtures thereof.
Claim 41
Dependent Claim
28 words
An ink composition according to claim 24 wherein the monoamine is present in an amount of from about 0.05 to about 5 percent by weight of the ink.
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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) | 1996-10-18 | 1997-04-19 | 1997-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-18 | 2001-04-19 | 2001-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-18 | 2005-04-19 | 2005-10-19 | $7700.00 | Window Closed / Lapsed |