Patent US4692188A successfully refreshed from Google Patents.
US4692188A
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Preparation of ink jet compositions
Assignee: Xerox Corp
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Filing: 1985-10-15
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Granted: 1987-09-08
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Expires: 2005-10-15
Abstract
Abstract Disclosed is a process for the preparation of ink compositions useful for jet printing processes which comprises (1) dissolving in water immiscible organic solvent a polymer composition and an organic oil soluble dye; (2) adding an aqueous phase water surfactant mixture thereto; (3) affecting emulsification thereof; and (4) subsequently evaporating from the aforementioned mixture the solvent thereby resulting in an ink with the dye trapped in the polymer particles suspended in the aqueous phase.
Inventors
- 👤 Christopher K. Ober
- 👤 Randolph E. Branston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:54
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/12; B01J13/125; Y; Y10; Y10S; Y10S260/00; Y10S260/38
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
75 words
A process for the preparation of ink compositions useful for jet printing processes which comprises (1) dissolving in a water immiscible organic solvent a polymer composition and an organic oil soluble dye; (2) adding an aqueous phase water surfactant mixture thereto; (3) effecting emulsification thereof; and (4) subsequently evaporating from the aforementioned mixture the solvent thereby resulting in an ink having particles consisting of polymer and entrained or entrapped dye suspended in the aqueous phase.
Claim 2
Dependent Claim
75 words
A process for the preparation of ink compositions useful for jet printing processes which comprises (1) dissolving in a water immiscible organic solvent a polymer composition and an organic oil soluble dye; (2) adding an aqueous phase water surfactant mixture thereto; (3) effecting emulsification thereof; and (4) subsequently evaporating from the aforementioned mixture the solvent thereby resulting in an ink having particles consisting of polymer and entrained or entrapped dye suspended in the aqueous phase.
Claim 3
Dependent Claim
21 words
A process in accordance with claim 1 wherein there results ink particles with a diameter of about 0.3 to 1 micron.
Claim 4
Dependent Claim
22 words
A process in accordance with claim 1 wherein the organic solvent is selected from the group consisting of aliphatic and aromatic components.
Claim 5
Dependent Claim
16 words
A process in accordance with claim 1 wherein the organic solvent is an aliphatic halogenated solvent.
Claim 6
Dependent Claim
13 words
A process in accordance with claim 4 wherein the solvent is methylene chloride.
Claim 7
Dependent Claim
23 words
A process in accordance with claim 1 wherein the polymer is selected from the group consisting of polystyrenes, polyesters, polycarbonates and polymethyl methacrylates.
Claim 8
Dependent Claim
15 words
A process in accordance with claim 6 wherein the polystyrene is a styrene methacrylate copolymer.
Claim 9
Dependent Claim
13 words
A process in accordance with claim 6 wherein the polymer is poly(methyl methacrylate).
Claim 10
Dependent Claim
13 words
A process in accordance with claim 6 wherein the polyester is poly(ethylene succinate).
Claim 11
Dependent Claim
44 words
A process in accordance with claim 1 wherein the oil-soluble dye is selected from the group consisting of Oil Pink 312, Pylakrome Pink LX 1900, Oil Yellow, Oil Yellow 105, Savinyl Blue GLS, Oil Blue BOS, Neozapon 807, Sudan Black, and Sudan Black B.
Claim 12
Dependent Claim
16 words
A process in accordance with claim 1 wherein distilled water is selected for the aqueous phase.
Claim 13
Dependent Claim
13 words
A process in accordance with claim 1 wherein emulsification is affected by ultrasound.
Claim 14
Dependent Claim
25 words
A process in accordance with claim 1 wherein the solvent is evaporated by heating the mixture to from about 20° C. to about 100° C.
Claim 15
Dependent Claim
29 words
A process in accordance with claim 1 wherein the polymer is present in an amount of from about 5 percent to 50 percent by weight of the total ink.
Claim 16
Dependent Claim
29 words
A process in accordance with claim 14 wherein the dye is present in an amount of from about 5 percent to about 25 percent by weight of the polymer.
Claim 17
Dependent Claim
25 words
A process in accordance with claim 1 wherein the oil-soluble dye is selected from the group consisting of red, blue, yellow, cyan, magenta and black.
Claim 18
Dependent Claim
22 words
A process in accordance with claim 1 wherein emulsification is effected for a period of from about 0.5 to about 30 minutes.
Claim 19
Dependent Claim
23 words
A process in accordance with claim 1 wherein the water is present in an amount of from about 50 to about 95 percent.
Claim 20
Dependent Claim
24 words
A process in accordance with claim 1 wherein there result ink particles with a diameter of from about 0.03 micron to about 2.0 microns.
Claim 21
Dependent Claim
76 words
A process for the preparation of the compositions useful for jet printing processes consisting essentially of (1) dissolving in a water immiscible organic solvent a polymer composition and an organic oil soluble dye; (2) adding an aqueous phase water surfactant mixture thereto; (3) effecting emulsification thereof; and (4) subsequently evaporating from the aforementioned mixture the solvent thereby resulting in an ink having particles consisting of polymer and entrained or entrapped dye suspended in the aqueous phase.
Claim 22
Dependent Claim
76 words
A process for the preparation of the compositions useful for jet printing processes consisting essentially of (1) dissolving in a water immiscible organic solvent a polymer composition and an organic oil soluble dye; (2) adding an aqueous phase water surfactant mixture thereto; (3) effecting emulsification thereof; and (4) subsequently evaporating from the aforementioned mixture the solvent thereby resulting in an ink having particles consisting of polymer and entrained or entrapped dye suspended in the aqueous phase.
Claim 23
Dependent Claim
23 words
A process in accordance with claim 20 wherein there result ink particles with a diameter of from about 0.3 to about 1 micron.
Claim 24
Dependent Claim
24 words
A process in accordance with claim 20 wherein there result ink particles with a diameter of from about 0.03 micron to about 2.0 microns.
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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) | 1990-09-07 | 1991-03-09 | 1991-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-07 | 1995-03-09 | 1995-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-07 | 1999-03-09 | 1999-09-08 | $7700.00 | Window Closed / Lapsed |