US5266106A
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Ink compositions with dendrimer grafts
Assignee: Xerox Corp
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Filing: 1992-10-22
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Granted: 1993-11-30
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Expires: 2012-10-22
Abstract
Abstract An ink composition comprised of a solution comprised of a a dye and a grafted dendrimer.
Inventors
- 👤 Marcel P. Breton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:28
CPC Classifications
C; C08; C08G; C08G83/00; C08G83/002; C08G83/003; C09; C09D; C09D11/00; C09D11/30; Y; Y10; Y10S; Y10S424/00; Y10S424/16
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
16 words
An aqueous ink composition comprised of a solution comprised of a dye and a grafted dendrimer.
Claim 2
Dependent Claim
16 words
An aqueous ink composition comprised of a solution comprised of a dye and a grafted dendrimer.
Claim 3
Dependent Claim
18 words
An aqueous ink in accordance with claim 1 wherein the solution contains water, a humectant, and a biocide.
Claim 4
Dependent Claim
19 words
An aqueous ink in accordance with claim 1 wherein the dendrimer is grafted with a nonionic alkylene oxide oligomer.
Claim 5
Dependent Claim
18 words
An aqueous ink in accordance with claim 1 wherein the dendrimer is grafted with an ethylene oxide oligomer.
Claim 6
Dependent Claim
34 words
An aqueous ink in accordance with claim 1 wherein the dendrimer is grafted with a nonionic ethylene oxide oligomer, and wherein each ethylene oxide oligomer contains about 1 to about 45 ethylene oxide units.
Claim 7
Dependent Claim
22 words
An aqueous ink in accordance with claim 1 wherein the dye is Food Black #2, Direct Black 168, or Basacid Black X-34.
Claim 8
Dependent Claim
43 words
An aqueous ink in accordance with claim 1 wherein the dye is present in an amount of about 0.01 to about 10 percent by weight, and the solution contains water in an amount of from about 50 to about 98 percent by weight.
Claim 9
Dependent Claim
25 words
An aqueous ink in accordance with claim 1 containing a humectant present in the amount of from about 2 to about 50 percent by weight.
Claim 10
Dependent Claim
15 words
An aqueous ink in accordance with claim 8 wherein the humectant is an aliphatic glycol.
Claim 11
Dependent Claim
29 words
An aqueous ink in accordance with claim 8 wherein the humectant is a glycol selected from the group consisting of ethylene glycol, propylene glycol, diethylene glycol, and mixtures thereof.
Claim 12
Dependent Claim
25 words
An aqueous ink in accordance with claim 10 with a biocide present in the amount of from about 0.02 to about 0.1 percent by weight.
Claim 13
Dependent Claim
21 words
An aqueous ink in accordance with claim 1 wherein the dendrimer is a first, second, third, or fourth generation grafted dendrimer.
Claim 14
Dependent Claim
37 words
An aqueous ink in accordance with claim 5 wherein the dendrimer is grafted with a nonionic ethylene oxide oligomer, and wherein the percent grafting ranges from 5 to 95 percent of the number of amino terminated groups.
Claim 15
Dependent Claim
23 words
An aqueous ink in accordance with claim 3 wherein the ink contains a mixture of two grafted dendrimers with different levels of grafting.
Claim 16
Dependent Claim
22 words
An aqueous ink in accordance with claim 1 wherein the ink contains a mixture of grafted dendrimers with different levels of grafting.
Claim 17
Dependent Claim
27 words
An aqueous ink in accordance with claim 1 wherein the solution contains water and additives selected from the group consisting of surfactants, wetting agents, and dispersing agents.
References Cited (Backward Citations)
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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) | 1996-11-29 | 1997-05-31 | 1997-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-29 | 2001-05-31 | 2001-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-29 | 2005-05-31 | 2005-11-30 | $7700.00 | Window Closed / Lapsed |