US2653135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface active compounds
Assignee: Cities Service Research and Development Co
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Filing: 1951-01-04
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Granted: 1953-09-22
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Expires: 1971-01-04
Abstract
No abstract record available.
Inventors
- 👤 William B Hughes
- 👤 Everett B Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:54
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
THE PROCESS OF RESOLVING EMULSIONS WHICH INCLUDES MIXING WITH A PETROLEUM WATER-IN-OIL EMULSION A RESOLVING AGENT CONSISTING OF A PRODUCT PREPARED BY MIXING TOGETHER FROM ONE TO THREE MOLS OF AN ALIPHATIC ALDEHYDE HAVING MORE THAN ONE CARBON ATOM AND ONE MOL OF A MIXTURE OF A POLYETHYLENE AMINE AND AN ALKYL AMINE HAVING MORE THAN FOUR CARBON ATOMS, HEATING THE ALDEHYDE-AMINE MIXTURE FOR A PERIOD OF FROM ABOUT ONE HALF TO ONE HOUR AT A TMEPERATURE SLIGHTLY BELOW THE BOILING POINT OF THE MIXTURE, AN NEUTRALIZING THE RESULTANT PRODUCT TO A METHYL ORANGE END POINT WITH PROPYLATED NAPHTHALENE SULFONIC ACID, THE AGENT BEING MIXED IN AN AMOUNT SMALL BUT SUFFICIENT TO CAUSE SUBSTANTIAL RESOLUTION OF THE EMULSION, ALLOWING THE TREATED EMULSION TO SETTLE INTO AN OIL PHASE AND A WATER PHASE, AND SEPARATING THE OIL FROM THE WATER.
Claim 2
Dependent Claim
139 words
THE PROCESS OF RESOLVING EMULSIONS WHICH INCLUDES MIXING WITH A PETROLEUM WATER-IN-OIL EMULSION A RESOLVING AGENT CONSISTING OF A PRODUCT PREPARED BY MIXING TOGETHER FROM ONE TO THREE MOLS OF AN ALIPHATIC ALDEHYDE HAVING MORE THAN ONE CARBON ATOM AND ONE MOL OF A MIXTURE OF A POLYETHYLENE AMINE AND AN ALKYL AMINE HAVING MORE THAN FOUR CARBON ATOMS, HEATING THE ALDEHYDE-AMINE MIXTURE FOR A PERIOD OF FROM ABOUT ONE HALF TO ONE HOUR AT A TMEPERATURE SLIGHTLY BELOW THE BOILING POINT OF THE MIXTURE, AN NEUTRALIZING THE RESULTANT PRODUCT TO A METHYL ORANGE END POINT WITH PROPYLATED NAPHTHALENE SULFONIC ACID, THE AGENT BEING MIXED IN AN AMOUNT SMALL BUT SUFFICIENT TO CAUSE SUBSTANTIAL RESOLUTION OF THE EMULSION, ALLOWING THE TREATED EMULSION TO SETTLE INTO AN OIL PHASE AND A WATER PHASE, AND SEPARATING THE OIL FROM THE WATER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |