US5017644A
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US
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Ink jet ink compositions
Assignee: Xerox Corp
•
Filing: 1989-05-22
•
Granted: 1991-05-21
•
Expires: 2009-05-22
Abstract
Abstract Disclosed is an ink jet ink composition comprising a liquid vehicle such as water or ethanol, a dye, and a linear N-hydroxyl substituted polyethyleneimine polymer. In a preferred embodiment, the linear N-hydroxyl substituted polyethyleneimine polymer is selected from the group consisting of linear poly(N-hydroxyethylethyleneimine), linear poly(N-hydroxypropylethyleneimine), and linear poly(N-hydroxymethylethyleneimine). Also disclosed is a process for generating images with the disclosed inks in ink jet printing processes, including continuous stream ink jet printing processes. Further, a process for preparing the linear N-hydroxyl substituted polyethyleneimine polymers included in the inks of the present invention is also disclosed.
Inventors
- 👤 Timothy J. Fuller
- 👤 Warren E. Solodar
- 👤 Henry R. Kang
- 👤 Samuel Kaplan
- 👤 Raymond K. Crandall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:03
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C08; C08G; C08G73/00; C08G73/02; C08G73/0233; Y; Y10; Y10S; Y10S260/00; Y10S260/38
Claims Analysis
Total Claims: 56
Claim 1
Independent Claim
18 words
An ink jet ink composition comprising a liquid vehicle, a dye, and a linear N-hydroxyl substituted polyethyleneimine polymer.
Claim 2
Dependent Claim
18 words
An ink jet ink composition comprising a liquid vehicle, a dye, and a linear N-hydroxyl substituted polyethyleneimine polymer.
Claim 3
Dependent Claim
25 words
An ink jet ink composition according to claim 1 wherein the liquid vehicle is selected from the group consisting of water, ethanol, and mixtures thereof.
Claim 4
Dependent Claim
30 words
An ink jet ink composition according to claim 1 wherein the linear N-hydroxyl substituted polyethyleneimine polymer is selected from the group consisting of linear poly(N-hydroxyethylethyleneimine), linear poly(N-hydroxypropylethyleneimine), and linear poly(N-hydroxymethylethyleneimine).
Claim 5
Dependent Claim
31 words
An ink jet ink composition according to claim 1 wherein the linear N-hydroxyl substituted polyethyleneimine polymer is present in an amount of from about 0.5 to about 10 percent by weight.
Claim 6
Dependent Claim
31 words
An ink jet ink composition according to claim 1 wherein the linear N-hydroxyl substituted polyethyleneimine polymer is present in an amount of from about 2 to about 5 percent by weight.
Claim 7
Dependent Claim
27 words
An ink jet ink composition according to claim 1 wherein the ink contains a material selected from the group consisting of benzyl alcohol, N-methylpyrrolidone, and mixtures thereof.
Claim 8
Dependent Claim
42 words
A process for generating images which comprises incorporating into an ink jet printing apparatus the ink composition of claim 1 and forming images by causing the ink to be expelled in droplets onto a substrate, thereby generating an image on the substrate.
Claim 9
Dependent Claim
29 words
A process according to claim 7 wherein the ink contains a linear N-hydroxyl substituted polyethyleneimine polymer selected from the group consisting of linear poly(N-hydroxyethylethyleneimine), linear poly(N-hydroxypropylethyleneimine), and linear poly(N-hydroxymethylethyleneimine).
Claim 10
Dependent Claim
28 words
A process according to claim 7 wherein the linear N-hydroxyl substituted polyethyleneimine polymer is present in an amount of from about 0.5 to about 10 percent by weight.
Claim 11
Dependent Claim
19 words
A process according to claim 7 wherein the image is generated by a continuous stream ink jet printing process.
Claim 12
Dependent Claim
49 words
An ink jet ink composition comprising a liquid vehicle, a dye, and a linear N-hydroxyl substituted polyethyleneimine polymer of the formula ##STR3## wherein R is selected from the group consisting of hydrogen and aliphatic or aromatic hydrocarbon groups, and n is an integer which represents the number of segments.
Claim 13
Dependent Claim
49 words
An ink jet ink composition comprising a liquid vehicle, a dye, and a linear N-hydroxyl substituted polyethyleneimine polymer of the formula ##STR3## wherein R is selected from the group consisting of hydrogen and aliphatic or aromatic hydrocarbon groups, and n is an integer which represents the number of segments.
Claim 14
Dependent Claim
30 words
An ink jet ink composition according to claim 11 wherein R is selected from the group consisting of hydrogen and hydrocarbon groups with from 1 to about 6 carbon atoms.
Claim 15
Dependent Claim
21 words
An ink jet ink composition according to claim 11 wherein n is an integer of from about 170 to about 575.
Claim 16
Dependent Claim
21 words
An ink jet ink composition according to claim 11 wherein n is an integer of from about 345 to about 405.
Claim 17
Dependent Claim
25 words
An ink jet ink composition according to claim 11 wherein the polymer has a number average molecular weight of from about 15,000 to about 45,000.
Claim 18
Dependent Claim
25 words
An ink jet ink composition according to claim 11 wherein the polymer has a number average molecular weight of from about 30,000 to about 35,000.
Claim 19
Dependent Claim
30 words
An ink jet ink composition according to claim 11 wherein the linear N-hydroxyl substituted polyethyleneimine polymer is selected from the group consisting of linear poly(N-hydroxyethylethyleneimine), linear poly(N-hydroxypropylethyleneimine), and linear poly(N-hydroxymethylethyleneimine).
Claim 20
Dependent Claim
31 words
An ink jet ink composition according to claim 11 wherein the linear N-hydroxyl substituted polyethyleneimine polymer is present in an amount of from about 0.5 to about 10 percent by weight.
Claim 21
Dependent Claim
25 words
An ink jet ink composition according to claim 11 wherein the liquid vehicle is selected from the group consisting of water, ethanol, and mixtures thereof.
Claim 22
Dependent Claim
42 words
A process for generating images which comprises incorporating into an ink jet printing apparatus the ink composition of claim 11 and forming images by causing the ink to be expelled in droplets onto a substrate, thereby generating an image on the substrate.
Claim 23
Dependent Claim
50 words
An ink jet ink composition comprising a liquid vehicle, a dye, and a linear N-hydroxyl substituted polyethyleneimine polymer of the formula ##STR4## wherein R is selected from the group consisting of hydrogen and aliphatic or aromatic hydrocarbon groups, and n is an integer of from about 10 to about 45.
Claim 24
Dependent Claim
50 words
An ink jet ink composition comprising a liquid vehicle, a dye, and a linear N-hydroxyl substituted polyethyleneimine polymer of the formula ##STR4## wherein R is selected from the group consisting of hydrogen and aliphatic or aromatic hydrocarbon groups, and n is an integer of from about 10 to about 45.
Claim 25
Dependent Claim
25 words
An ink jet ink composition according to claim 21 wherein the polymer has a number average molecular weight of from about 1,000 to about 3,000.
Claim 26
Dependent Claim
21 words
An ink jet ink composition according to claim 21 wherein the polymer has a number average molecular weight of about 2,000.
Claim 27
Dependent Claim
25 words
An ink jet ink composition according to claim 21 wherein the liquid vehicle is selected from the group consisting of water, ethanol, and mixtures thereof.
Claim 28
Dependent Claim
42 words
A process for generating images which comprises incorporating into an ink jet printing apparatus the ink composition of claim 21 and forming images by causing the ink to be expelled in droplets onto a substrate, thereby generating an image on the substrate.
Claim 29
Dependent Claim
18 words
A process according to claim 25 wherein the image is generated by a thermal ink jet printing process.
Claim 30
Dependent Claim
83 words
A process for preparing linear N-hydroxyl substituted polyethyleneimine polymers which comprises (a) heating an oxazoline selected from the group consisting of 2-oxazoline and 2-substituted-2-oxazolines in the presence of a catalyst to form a linear polyoxazoline; (b) subsequently subjecting the poly (2-oxazoline) or polyoxazoline to a hydrolysis reaction by heating it in water in the presence of an acid to form linear polyethyleneimine; and (c) heating the linear polyethyleneimine and an alkyl oxide in a solvent to form the linear N-hydroxyl substituted polyethyleneimine polymer.
Claim 31
Dependent Claim
83 words
A process for preparing linear N-hydroxyl substituted polyethyleneimine polymers which comprises (a) heating an oxazoline selected from the group consisting of 2-oxazoline and 2-substituted-2-oxazolines in the presence of a catalyst to form a linear polyoxazoline; (b) subsequently subjecting the poly (2-oxazoline) or polyoxazoline to a hydrolysis reaction by heating it in water in the presence of an acid to form linear polyethyleneimine; and (c) heating the linear polyethyleneimine and an alkyl oxide in a solvent to form the linear N-hydroxyl substituted polyethyleneimine polymer.
Claim 32
Dependent Claim
110 words
A process for preparing linear N-hydroxyl substituted polyethyleneimine polymers which comprises (a) heating an oxazoline selected from the group consisting of 2-oxazoline and 2-substituted-2-oxazolines in the presence of a catalyst to form a linear polyoxazoline; (b) subsequently subjecting the polyoxazoline to a hydrolysis reaction by heating it in water in the presence of an acid to form linear polyethyleneimine; (c) dissolving the polyethyleneimine in a dilute acid solution; (d) adding sodium hydroxide to the reaction mixture to precipitate the polyethyleneimine from solution; (e) adding an alkylene oxide to the reaction mixture and stirring at room temperature; and (f) heating the reaction mixture to form the linear N-hydroxyl substituted polyethyleneimine polymer.
Claim 33
Dependent Claim
110 words
A process for preparing linear N-hydroxyl substituted polyethyleneimine polymers which comprises (a) heating an oxazoline selected from the group consisting of 2-oxazoline and 2-substituted-2-oxazolines in the presence of a catalyst to form a linear polyoxazoline; (b) subsequently subjecting the polyoxazoline to a hydrolysis reaction by heating it in water in the presence of an acid to form linear polyethyleneimine; (c) dissolving the polyethyleneimine in a dilute acid solution; (d) adding sodium hydroxide to the reaction mixture to precipitate the polyethyleneimine from solution; (e) adding an alkylene oxide to the reaction mixture and stirring at room temperature; and (f) heating the reaction mixture to form the linear N-hydroxyl substituted polyethyleneimine polymer.
Claim 34
Dependent Claim
20 words
A process according to claim 27 wherein the 2-substituted-2-oxazoline is selected from the group consisting of 2-methyloxazoline, 2-ethyloxazoline, and 2-phenyloxazoline.
Claim 35
Dependent Claim
20 words
A process according to claim 28 wherein the 2-substituted-2-oxazoline is selected from the group consisting of 2-methyloxazoline, 2-ethyloxazoline, and 2-phenyloxazoline.
Claim 36
Dependent Claim
27 words
A process according to claim 27 wherein the linear polyoxazoline is formed by heating the oxazoline to a temperature of from about 90° to about 120° C.
Claim 37
Dependent Claim
27 words
A process according to claim 28 wherein the linear polyoxazoline is formed by heating the oxazoline to a temperature of from about 90° to about 120° C.
Claim 38
Dependent Claim
28 words
A process according to claim 27 wherein the linear polyethyleneimine is formed by heating the linear polyoxazoline to a temperature of from about 90° to about 150° C.
Claim 39
Dependent Claim
28 words
A process according to claim 28 wherein the linear polyethyleneimine is formed by heating the linear polyoxazoline to a temperature of from about 90° to about 150° C.
Claim 40
Dependent Claim
31 words
A process according to claim 27 wherein the linear N-hydroxyl substituted polyethyleneimine polymer is formed by reacting the linear polyethyleneimine and the alkyl oxide in an approximately one to one ratio.
Claim 41
Dependent Claim
31 words
A process according to claim 28 wherein the linear N-hydroxyl substituted polyethyleneimine polymer is formed by reacting the linear polyethyleneimine and the alkyl oxide in an approximately one to one ratio.
Claim 42
Dependent Claim
22 words
A process according to claim 27 wherein the alkyl oxide is selected from the group consisting of ethylene oxide and propylene oxide.
Claim 43
Dependent Claim
22 words
A process according to claim 28 wherein the alkyl oxide is selected from the group consisting of ethylene oxide and propylene oxide.
Claim 44
Dependent Claim
35 words
A process according to claim 27 wherein the linear N-hydroxyl substituted polyethyleneimine polymer is formed by heating the linear polyethyleneimine and the alkyl oxide to a temperature of from about 25° to about 60° C.
Claim 45
Dependent Claim
34 words
A process according to claim 39 wherein the linear polyethyleneimine and the alkyl oxide are first stirred together at room temperature and then heated to temperatures of from about 25° to about 60° C.
Claim 46
Dependent Claim
94 words
A process for preparing linear N-hydroxyl substituted polyethyleneimine polymers which comprises (a) heating an oxazoline selected from the group consisting of 2-oxazoline and 2-substituted-2-oxazolines in the presence of a catalyst to form a linear polyoxazoline; (b) subsequently subjecting the polyoxazoline to a hydrolysis reaction by heating it in water in the presence of an acid to form linear polyethyleneimine; (c) dissolving the polyethyleneimine in a dilute acid solution; (d) adding sodium hydroxide to the reaction mixture to precipitate the polyethyleneimine from solution; (e) adding formaldehyde to the reaction mixture and stirring at room temperature.
Claim 47
Dependent Claim
94 words
A process for preparing linear N-hydroxyl substituted polyethyleneimine polymers which comprises (a) heating an oxazoline selected from the group consisting of 2-oxazoline and 2-substituted-2-oxazolines in the presence of a catalyst to form a linear polyoxazoline; (b) subsequently subjecting the polyoxazoline to a hydrolysis reaction by heating it in water in the presence of an acid to form linear polyethyleneimine; (c) dissolving the polyethyleneimine in a dilute acid solution; (d) adding sodium hydroxide to the reaction mixture to precipitate the polyethyleneimine from solution; (e) adding formaldehyde to the reaction mixture and stirring at room temperature.
Claim 48
Dependent Claim
21 words
A process according to claim 41 wherein the 2-substituted oxazoline is selected from the group consisting of 2-methyloxazoline, 2-ethyloxazoline, and 2-phenyloxazoline.
Claim 49
Dependent Claim
27 words
A process according to claim 41 wherein the linear polyoxazoline is formed by heating the oxazoline to a temperature of from about 90° to about 120° C.
Claim 50
Dependent Claim
28 words
A process according to claim 41 wherein the linear polyethyleneimine is formed by heating the linear polyoxazoline to a temperature of from about 90° to about 150° C.
Claim 51
Dependent Claim
21 words
A process according to claim 44 wherein the acid is selected from the group consisting of sulfuric acid and hydrochloric acid.
Claim 52
Dependent Claim
30 words
A process according to claim 41 wherein the linear N-hydroxyl substituted polyethyleneimine polymer is formed by reacting the linear polyethyleneimine and the formaldehyde in an approximately one to one ratio.
Claim 53
Dependent Claim
30 words
An ink jet ink composition according to claim 21 wherein R is selected from the group consisting of hydrogen and hydrocarbon groups with from 1 to about 6 carbon atoms.
Claim 54
Dependent Claim
27 words
A process according to claim 27 wherein the oxazoline is 2-oxazoline and the linear N-hydroxyl substituted polyethyleneimine polymer has from about 10 to about 45 repeating segments.
Claim 55
Dependent Claim
27 words
A process according to claim 28 wherein the oxazoline is 2-oxazoline and the linear N-hydroxyl substituted polyethyleneimine polymer has from about 10 to about 45 repeating segments.
Claim 56
Dependent Claim
27 words
A process according to claim 41 wherein the oxazoline is 2-oxazoline and the linear N-hydroxyl substituted polyethyleneimine polymer has from about 10 to about 45 repeating segments.
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| 7.5 Years (Year 8) | 1998-05-20 | 1998-11-19 | 1999-05-21 | $3760.00 | Window Closed / Lapsed |
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