US4340431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment flushing
Assignee: Flint Ink Corp
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Filing: 1980-11-10
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Granted: 1982-07-20
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Expires: 2000-11-10
Abstract
Abstract A method for transferring an organic pigment from an aqueous pulp of the pigment to a water-immiscible organic vehicle. This method comprising mixing the aqueous pulp and vehicle with a petroleum sulfonate flushing aid and at least one flushing aid selected from the class consisting of sulfonated sperm oil, sulfated sperm oil, and mixtures thereof until a major portion of the water present in said pulp separates.
Inventors
- 👤 Manohar L. Arora
- 👤 Timothy A. Overway
- 👤 Thomas E. Foye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:25
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0001; C09B67/0021
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
74 words
In the method for transferring an organic pigment from an aqueous pulp of the pigment to a water-immiscible organic vehicle by mixing said aqueous pulp and said vehicle until a major portion of the water present in said pulp separates, the improvement comprising incorporation a petroleum sulfonate additive and at least one additive selected from the class consisting of sulfonated sperm oil, sulfated sperm oil, and mixtures thereof with said vehicle and said pigment.
Claim 2
Dependent Claim
74 words
In the method for transferring an organic pigment from an aqueous pulp of the pigment to a water-immiscible organic vehicle by mixing said aqueous pulp and said vehicle until a major portion of the water present in said pulp separates, the improvement comprising incorporation a petroleum sulfonate additive and at least one additive selected from the class consisting of sulfonated sperm oil, sulfated sperm oil, and mixtures thereof with said vehicle and said pigment.
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein said pigment is an alkali blue pigment.
Claim 4
Dependent Claim
72 words
The method of claim 1 wherein said aqueous pulp contains by weight about 60 to 90 percent water, petroleum sulfonate is added in an amount of about 10 to 40 percent and said additive selected from the group consisting of sulfated sperm oil, sulfonated sperm oil and mixtures thereof is added in an amount of about 1 to 15 percent all based on the weight of the dry pigment in the presscake.
Claim 5
Dependent Claim
40 words
The method of claim 3 wherein said mixing is performed at a temperature of about 70° to 200° F. for a period sufficiently long to remove from about 60 to 95 percent by weight of the water in the presscake.
Claim 6
Dependent Claim
40 words
A composition consisting essentially of an aqueous organic pigment pulp, a water-immiscible organic vehicle, and (1) a petroleum sulfonate and (2) at least one additive selected from the class consisting of sulfonated sperm oil, sulfated sperm oil, and mixtures thereof.
Claim 7
Dependent Claim
40 words
A composition consisting essentially of an aqueous organic pigment pulp, a water-immiscible organic vehicle, and (1) a petroleum sulfonate and (2) at least one additive selected from the class consisting of sulfonated sperm oil, sulfated sperm oil, and mixtures thereof.
Claim 8
Dependent Claim
69 words
The composition of claim 5 wherein the amount of said petroleum sulfonate additive (1) is about 10 to 40 percent and said additive (2) selected from the group consisting of sulfated sperm oil, sulfonated sperm oil and mixtures thereof is from about 1 to 15 percent all based on the weight of the dry pigment in the presscake and said aqueous pulp contains about 60 to 90 percent water.
Claim 9
Dependent Claim
13 words
The composition of claim 6 wherein said additive (2) is sulfated sperm oil.
Claim 10
Dependent Claim
13 words
The composition of claim 6 wherein said additive (2) is sulfonated sperm oil.
Claim 11
Dependent Claim
14 words
The composition of claim 6 wherein said organic pigment is an alkali blue pigment.
Claim 12
Dependent Claim
13 words
The composition of claim 9 wherein said additive (2) is sulfated sperm oil.
Claim 13
Dependent Claim
13 words
The composition of claim 9 wherein said additive (2) is sulfonated sperm oil.
References Cited (Backward Citations)
US2137794A
Cited
US2120588A
Cited
US2192954A
Cited
US2219395A
Cited
US2689222A
Cited
US3256202A
Cited
US3764358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-19 | 1986-01-18 | 1986-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-19 | 1990-01-18 | 1990-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-19 | 1994-01-18 | 1994-07-20 | $7700.00 | Window Closed / Lapsed |