Patent US3147117A successfully refreshed from Google Patents.
US4059554A
Expired / Lapsed
US
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Stabilized emulsion inks
Assignee: Xerox Corp
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Filing: 1976-05-28
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Granted: 1977-11-22
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Expires: 1996-05-28
Abstract
Abstract Stabilized alcohol or water in oil ink emulsions are provided comprising: a pigment, from 20 to 40% by weight resin of a block or graft copolymer having one type of polar segment miscible with water and alkyl alcohols of from 2 to 6 carbon atoms, and another type of non-polar segment which can be absorbed on the pigment and is miscible with the non-polar components of the ink, said copolymer having a number average molecular weight of from 20,000 to 40,000; and a vehicle for said resin and pigment comprising polar and non-polar solvents.
Inventors
- 👤 Thomas John Pacansky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:12
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
97 words
A stabilized alcohol or water in oil ink emulsion comprising: a. a coloring amount of a pigment, b. from 20-40% by weight resin of a block or graft copolymer having one type of polar segment miscible with water and alcohols of from 2 to 6 carbon atoms, and another type of non-polar segment which can be absorbed on the pigment and is miscible with non-polar components of the ink, said coploymer having a number average molecular weight from 20,000 to 40,000 and a vehicle for said resin and pigment comprising a mixture of polar and non-polar solvents.
Claim 2
Dependent Claim
97 words
A stabilized alcohol or water in oil ink emulsion comprising: a. a coloring amount of a pigment, b. from 20-40% by weight resin of a block or graft copolymer having one type of polar segment miscible with water and alcohols of from 2 to 6 carbon atoms, and another type of non-polar segment which can be absorbed on the pigment and is miscible with non-polar components of the ink, said coploymer having a number average molecular weight from 20,000 to 40,000 and a vehicle for said resin and pigment comprising a mixture of polar and non-polar solvents.
Claim 3
Dependent Claim
24 words
The composition of claim 1 wherein the pigment is present in an amount of from about 10 to 25% by weight of the ink.
Claim 4
Dependent Claim
21 words
The composition of claim 1 wherein the pigment is present in an amount of about 16% by weight of the ink.
Claim 5
Dependent Claim
19 words
The composition of claim 1 wherein the vehicle contains about 35% polar solvents and 10 to 20% non-polar solvents.
Claim 6
Dependent Claim
19 words
The composition of claim 1 wherein a polar alcohol solvent is present of from 2 to 6 carbon atoms.
Claim 7
Dependent Claim
23 words
The composition of claim 1 wherein the vehicle comprises water and an alcohol selected from ethylene glycol, propylene glycol, glycerol, and 2,5-hexane diol.
Claim 8
Dependent Claim
15 words
The composition of claim 1 wherein the copolymer is formed of polystyrene and poly(vinyl pyrrolidone).
Claim 9
Dependent Claim
16 words
The composition of claim 1 wherein the copolymer is formed of poly(methyl methacrylate) and poly(ethylene oxide).
Claim 10
Dependent Claim
16 words
The composition of claim 1 wherein the copolymer is formed of polystyrene and poly(vinyl N-alkylpyridinium bromide).
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) | 1980-11-21 | 1981-05-23 | 1981-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-21 | 1985-05-23 | 1985-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-21 | 1989-05-23 | 1989-11-22 | $7700.00 | Window Closed / Lapsed |