US5129948A
Expired / Lapsed
US
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Ink for ink jet printing
Assignee: Xerox Corp
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Filing: 1991-05-16
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Granted: 1992-07-14
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Expires: 2011-05-16
Abstract
Abstract An ink composition, preferably for ink jet printing, contains a liquid carrier, a colorant, and a polyalkyleneimine/alkylene oxide block copolymer, preferably polyethyleneimine/propylene oxide/ethylene oxide block copolymer, and/or a primary or secondary polyoxyalkylene amine.
Inventors
- 👤 Marcel P. Breton
- 👤 Melvin D. Croucher
- 👤 Kerstin M. Henseleit
- 👤 Barbel Helbrecht
- 👤 Fatima M. Pontes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:06
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
32 words
An ink composition comprising an ink vehicle, a colorant, and at least one member selected from the group consisting of a polyalkyleneimine/alkylene oxide block copolymer and a primary or secondary polyoxyalkylene amine.
Claim 2
Dependent Claim
32 words
An ink composition comprising an ink vehicle, a colorant, and at least one member selected from the group consisting of a polyalkyleneimine/alkylene oxide block copolymer and a primary or secondary polyoxyalkylene amine.
Claim 3
Dependent Claim
12 words
The composition of claim wherein said member is polyalkyleneimine/alkylene oxide block copolymer.
Claim 4
Dependent Claim
18 words
The composition of claim 1, comprising said polyalkyleneimine/alkylene oxide block copolymer and said primary or secondary polyoxyalkylene amine.
Claim 5
Dependent Claim
11 words
The composition of claim 1, wherein said member is polyoxyalkylene amine.
Claim 6
Dependent Claim
24 words
The composition of claim 1, wherein said polyoxyalkylene amine is present in an amount from about 0% by weight to about 8% by weight.
Claim 7
Dependent Claim
101 words
The composition of claim 1, wherein said polyoxyalkylene amine is A-B y -C, wherein A is R 1 NH(C n H 2n ), B is an alkoxy represented as OC n H 2n , C is NHR 2 , y is 1 to a value to impart a molecular weight of about 6000, where if y is greater than 1 the alkoxy may be the same or different, n=1 to 4, and R 1 and R 2 are the same or different and represent hydrogen, a straight chain alcohol or a branched chain alcohol having from 1 to 4 carbon atoms.
Claim 8
Dependent Claim
18 words
The composition of claim 1, wherein said polyoxyalkylene amine has a molecular weight of at least about 148.
Claim 9
Dependent Claim
22 words
The composition of claim wherein said block copolymer is present in an amount ranging from about 0.01 to about 8% by weight.
Claim 10
Dependent Claim
19 words
The composition of claim 1, wherein said block copolymer has a molecular weight between about 1000 and about 300,000.
Claim 11
Dependent Claim
17 words
The composition of claim wherein said colorant is selected from the group consisting of dyes and pigments.
Claim 12
Dependent Claim
16 words
The composition of claim 1, wherein said ink vehicle comprises water, a humectant and a cosolvent.
Claim 13
Dependent Claim
20 words
The composition of claim 1, wherein a surface tension of the composition is between about 30 and about 60 dynes/cm.
Claim 14
Dependent Claim
19 words
The composition of claim 1, wherein a viscosity of the composition is between about 1.1 and about 5 centipoise.
Claim 15
Dependent Claim
18 words
The composition of claim 1, wherein the polyalkyleneimine/alkylene oxide block copolymer is a polyethyleneimine/propylene oxide/ethylene oxide block copolymer.
Claim 16
Dependent Claim
14 words
The composition of claim 1, wherein the colorant is soluble in the ink vehicle.
Claim 17
Dependent Claim
15 words
The composition of claim 15, wherein the ink vehicle contains water as its primary component.
Claim 18
Dependent Claim
23 words
The ink composition of claim 1, wherein the colorant is selected from the group consisting of acid dyes, reactive dyes, and direct dyes.
Claim 19
Dependent Claim
56 words
An ink composition comprising about 80% to about 99% by weight of an ink vehicle, about 1% to about 8% of a colorant, and about 0.01% to about 8% by weight of at least one member selected from the group consisting of polyethyleneimine/propylene oxide/ethylene oxide block copolymer, a primary polyoxyalkylene amine and a secondary polyoxyalkylene amine.
Claim 20
Dependent Claim
56 words
An ink composition comprising about 80% to about 99% by weight of an ink vehicle, about 1% to about 8% of a colorant, and about 0.01% to about 8% by weight of at least one member selected from the group consisting of polyethyleneimine/propylene oxide/ethylene oxide block copolymer, a primary polyoxyalkylene amine and a secondary polyoxyalkylene amine.
Claim 21
Dependent Claim
100 words
The composition of claim 18, wherein said polyoxyalkylene amine is A-B y -C, wherein A is R 1 NH(C n H 2n ), B is an alkoxy represented as OC n H 2n , C is NHR 2 , y is 1 to a value to impart a molecular weight of about 6000, where if y is greater than the alkoxy may be the same or different, n=1 to 4, and R 1 and R 2 are the same or different and represent hydrogen, a straight chain alcohol or a branched chain alcohol having from 1 to 4 carbon atoms.
Claim 22
Dependent Claim
20 words
The composition of claim 18, wherein said primary or secondary polyoxyalkylene amine has a molecular weight of at least 148.
Claim 23
Dependent Claim
18 words
The composition of claim 18, wherein said colorant is selected from the group consisting of dyes and pigments.
Claim 24
Dependent Claim
16 words
The composition of claim 18, wherein said ink vehicle comprises water, a humectant and a cosolvent.
Claim 25
Independent Claim
45 words
A method of ink jet printing, comprising jetting an ink composition onto a substrate, the ink composition comprising an ink vehicle, a colorant, and at least one member selected from the group consisting of polyalkyleneimine/alkylene oxide block copolymer, and a primary, or secondary polyoxyalkylene amine.
Claim 26
Independent Claim
45 words
A method of ink jet printing, comprising jetting an ink composition onto a substrate, the ink composition comprising an ink vehicle, a colorant, and at least one member selected from the group consisting of polyalkyleneimine/alkylene oxide block copolymer, and a primary, or secondary polyoxyalkylene amine.
Claim 27
Dependent Claim
18 words
The method of claim 23, wherein said polyalkyleneimine/alkylene oxide block copolymer is a polyethyleneimine/propylene oxide/ethylene oxide block copolymer.
Claim 28
Dependent Claim
16 words
The method of claim 23, wherein said ink composition is jetted from a thermal ink jet.
Claim 29
Dependent Claim
16 words
The method of claim 23, wherein said ink composit,ion is jetted from a piezoelectric ink jet.
Claim 30
Dependent Claim
45 words
The method of claim 23, wherein said ink composition comprises about 80% to about 99% by weight of said ink vehicle, about 1% to about 8% by weight of said colorant, and about 0.01% to about 8% by weight of said at least one member.
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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) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |