US2597204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating petroleum emulsions
Assignee: Aquaness Corp
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Filing: 1951-03-19
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Granted: 1952-05-20
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Expires: 1971-03-19
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Todd
- 👤 Fritz E Fuchs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:00
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, WHICH CONSISTS IN SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFYING AGENT CONSISTING ESSENTIALLY OF THE FATTY ACID ESTERS OF AN OXYALKYLATED POLYHYDROXY COMPOUND DERIVED BY THE REACTION OF AN ALKYL POLYHYDROXY COMPOUND INITIALLY HAVING THREE OR MORE FREE HYDROXYL GROUPS WITH A MIXTURE OF ETHYLENE AND PROPYLENE OXIDES IN WHICH THE PROPORTION OF PROPYLENE OXIDE IS IN THE RANGE OF FROM ABOUT 15% TO ABOUT 60% BY WEIGHT OF THE MIXTURE, AND WHEREIN THE PROPORTIONS OF THE MIXED OXIDES TO THE ALKYL POLYHYDROXY COMPOUND ARE SUCH AS TO PRODUCE SAID OXYALKYLATED POLYHYDROXY COMPOUND HAVING AN AVERAGE MOLECULAR WEIGHT RANGING FROM ABOUT 2500 TO ABOUT 7500, AND WHEREIN THE FATTY ACID EMPLOYED IN FORMING SAID ESTERS IS A LONG-CHAIN DETERGENT FORMING FATTY ACID HAVING 8 TO 18 CARBON ATOMS IN THE CHAIN.
Claim 2
Dependent Claim
143 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, WHICH CONSISTS IN SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFYING AGENT CONSISTING ESSENTIALLY OF THE FATTY ACID ESTERS OF AN OXYALKYLATED POLYHYDROXY COMPOUND DERIVED BY THE REACTION OF AN ALKYL POLYHYDROXY COMPOUND INITIALLY HAVING THREE OR MORE FREE HYDROXYL GROUPS WITH A MIXTURE OF ETHYLENE AND PROPYLENE OXIDES IN WHICH THE PROPORTION OF PROPYLENE OXIDE IS IN THE RANGE OF FROM ABOUT 15% TO ABOUT 60% BY WEIGHT OF THE MIXTURE, AND WHEREIN THE PROPORTIONS OF THE MIXED OXIDES TO THE ALKYL POLYHYDROXY COMPOUND ARE SUCH AS TO PRODUCE SAID OXYALKYLATED POLYHYDROXY COMPOUND HAVING AN AVERAGE MOLECULAR WEIGHT RANGING FROM ABOUT 2500 TO ABOUT 7500, AND WHEREIN THE FATTY ACID EMPLOYED IN FORMING SAID ESTERS IS A LONG-CHAIN DETERGENT FORMING FATTY ACID HAVING 8 TO 18 CARBON ATOMS IN THE CHAIN.
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) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |