Patent US2792353A successfully refreshed from Google Patents.
US2792353A
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Process for breaking petroleum emulsions employing certain polyepoxidemodified oxyalkylated phenol-aldehyde resins
Assignee: Baker Petrolite LLC
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Filing: 1953-04-20
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Granted: 1957-05-14
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Expires: 1973-04-20
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Shen Kwan-Ting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:11
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 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 SYNTHETIC HYDROPHILE PRODUCTS; SAID SYNTHETIC HYDROPHILE PRODUCTS BEING THE REACTION PRODUCTS OF (A) AN OXYALKYLATED PHENOL-ALDEHYDE RESIN CONTAINING A PLURALITY OF ACTIVE HYDROGEN ATOMS, AND (B) A NON-ARYL HYDROPHILE POLYEPOXIDE CHARACTERIZED BY THE FACT THAT THE PRECURSORY POLYHYDRIC ALCOHOL, IN WHICH AN OXYGEN-LINKED HYDROGEN ATOM IS REPLACED SUBSEQUENTLY BY THE RADICAL
Claim 2
Dependent Claim
73 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 SYNTHETIC HYDROPHILE PRODUCTS; SAID SYNTHETIC HYDROPHILE PRODUCTS BEING THE REACTION PRODUCTS OF (A) AN OXYALKYLATED PHENOL-ALDEHYDE RESIN CONTAINING A PLURALITY OF ACTIVE HYDROGEN ATOMS, AND (B) A NON-ARYL HYDROPHILE POLYEPOXIDE CHARACTERIZED BY THE FACT THAT THE PRECURSORY POLYHYDRIC ALCOHOL, IN WHICH AN OXYGEN-LINKED HYDROGEN ATOM IS REPLACED SUBSEQUENTLY BY THE RADICAL
References Cited (Backward Citations)
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US2395739A
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US2454541A
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US2499365A
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US2507910A
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US2602052A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |