US2498656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes for breaking petroleum emulsions
Assignee: Baker Petrolite LLC
•
Filing: 1948-05-29
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Granted: 1950-02-28
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Expires: 1968-05-29
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 21:42
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER INCLUDING A DRASTICALLY-OXIDIZED, HYDROPHILE, OXYALKYLATED 2,4,6 C4 TO C8 HYDROCARBON SUBSTITUTED MONOCYCLIC PHENOL-C1 TO C8 ALDEHYDE RESIN IN WHICH THE RATIO OF OXYALKYLENE GROUPS TO PHENOLIC NUCLEI IS AT LEAST 2:1 AND THE ALKYLENE RADICALS OF THE OXYALKYLENE GROUPS ARE SELECTED FROM THE CLASS CONSISTING OF ETHYLENE, PROPYLENE, BUTYLENE, HYDROXYPROPYLENE AND HYDROXYBUTYLENE RADICALS; SAID DRASTIC OXIDATION BEING CONDUCTED BY MEANS OF A GASEOUS OXYGEN-CONTAINING MEDIUM.
Claim 2
Dependent Claim
86 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER INCLUDING A DRASTICALLY-OXIDIZED, HYDROPHILE, OXYALKYLATED 2,4,6 C4 TO C8 HYDROCARBON SUBSTITUTED MONOCYCLIC PHENOL-C1 TO C8 ALDEHYDE RESIN IN WHICH THE RATIO OF OXYALKYLENE GROUPS TO PHENOLIC NUCLEI IS AT LEAST 2:1 AND THE ALKYLENE RADICALS OF THE OXYALKYLENE GROUPS ARE SELECTED FROM THE CLASS CONSISTING OF ETHYLENE, PROPYLENE, BUTYLENE, HYDROXYPROPYLENE AND HYDROXYBUTYLENE RADICALS; SAID DRASTIC OXIDATION BEING CONDUCTED BY MEANS OF A GASEOUS OXYGEN-CONTAINING MEDIUM.
References Cited (Backward Citations)
US2076624A
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US2307058A
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US2278838A
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US2243330A
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US2307495A
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US2454541A
Cited
US2454435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |