US2507560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for breaking petroleum emulsions
Assignee: Baker Petrolite LLC
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Filing: 1949-02-15
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Granted: 1950-05-16
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Expires: 1969-02-15
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Keiser Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:53
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTRIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER INCLUDING A HYDROPHILE, HYDROXYPOLYALKOXY COMPOUND OBTAINED BY THE ACTION OF AN ALKYLENE OXIDE CONTAINING A REACTIVE ETHYLENE OXIDE RING AND HAVING NOT OVER FOUR CARBON ATOMS ON AN ARTIFICIAL WAX WHICH CONSISTS ESSTENTIALLY OF THE REACTION PRODUCT OF STEARIC ACID, MALEIC ANHYDRIDE AND A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRIOL, POLYPENTAERYTHRITOLS AND MIXTURES THEREOF, IN WHICH THE POLYHYDRIC ALCOHOL IS SUBSTANTIALLY COMPLETELY ESTERFIED BY THE ACIDS IN THE PRODUCTION OF APPROXIMATELY 0.75 EQUIVALENT OF STEARIC ACID AND APPROXIMATELY 0.25 EQUIVALENT OF MALEIC ANHYDRIDE FOR EACH EQUIVALENT OF THE POLYHYDRIC ALCOHOL, THE AMOUNT OF ALKYLENE OXIDE USED RANGING FROM ABOUT 1 1/2 TO ABOUT 3 TIMES THE AMOUNT OF THE ARTIFICIAL WAX, BY WEIGHT.
Claim 2
Dependent Claim
137 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTRIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER INCLUDING A HYDROPHILE, HYDROXYPOLYALKOXY COMPOUND OBTAINED BY THE ACTION OF AN ALKYLENE OXIDE CONTAINING A REACTIVE ETHYLENE OXIDE RING AND HAVING NOT OVER FOUR CARBON ATOMS ON AN ARTIFICIAL WAX WHICH CONSISTS ESSTENTIALLY OF THE REACTION PRODUCT OF STEARIC ACID, MALEIC ANHYDRIDE AND A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRIOL, POLYPENTAERYTHRITOLS AND MIXTURES THEREOF, IN WHICH THE POLYHYDRIC ALCOHOL IS SUBSTANTIALLY COMPLETELY ESTERFIED BY THE ACIDS IN THE PRODUCTION OF APPROXIMATELY 0.75 EQUIVALENT OF STEARIC ACID AND APPROXIMATELY 0.25 EQUIVALENT OF MALEIC ANHYDRIDE FOR EACH EQUIVALENT OF THE POLYHYDRIC ALCOHOL, THE AMOUNT OF ALKYLENE OXIDE USED RANGING FROM ABOUT 1 1/2 TO ABOUT 3 TIMES THE AMOUNT OF THE ARTIFICIAL WAX, BY WEIGHT.
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) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |