US2854416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for breaking petroleum emulsions employing certain oxyalkyalted amine-modified thermoplastic phenolaldehyde resins
Assignee: Baker Petrolite LLC
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Filing: 1954-08-06
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Granted: 1958-09-30
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Expires: 1974-08-06
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:02
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
THE PROCESS OF BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE CHARACTERIZED BY SUBJECTING THE EMULSION TO A DEMULSIFYING AGENT INCLUDING A SYNTHETIC HYDROPHILE PRODUCT OBTAINED BY A TWO-STEP MANUFACTURING PROCESS CONSISTING OF FIRST, CONDENSING (A) AN OXYALKYLATION-SUSCEPTIBLE, FUSIBLE, ORGANIC SOLVENT-SOLUBLE, WATER-INSOLUBLE LOW-STAGE PHENOLALDEHYDE RESIN HAVING AN AV ERAGE MOLECULAR WEIGHT CORRESPONDING TO AT LEAST 3 AND NOT OVER 6 PHENOLIC NUCLEI PER RESIN MOLECULE; SAID RESIN BEING DERIVED BY REACTION BETWEEN AN ALDEHYDE HAVING NOT OVER 8 CARBON ATOMS AND REACTIVE TOWARDS TEO CLASSES OF PHENOLS, ONE BEING (A) A PHENOL OF THE FORMULA
Claim 2
Dependent Claim
94 words
THE PROCESS OF BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE CHARACTERIZED BY SUBJECTING THE EMULSION TO A DEMULSIFYING AGENT INCLUDING A SYNTHETIC HYDROPHILE PRODUCT OBTAINED BY A TWO-STEP MANUFACTURING PROCESS CONSISTING OF FIRST, CONDENSING (A) AN OXYALKYLATION-SUSCEPTIBLE, FUSIBLE, ORGANIC SOLVENT-SOLUBLE, WATER-INSOLUBLE LOW-STAGE PHENOLALDEHYDE RESIN HAVING AN AV ERAGE MOLECULAR WEIGHT CORRESPONDING TO AT LEAST 3 AND NOT OVER 6 PHENOLIC NUCLEI PER RESIN MOLECULE; SAID RESIN BEING DERIVED BY REACTION BETWEEN AN ALDEHYDE HAVING NOT OVER 8 CARBON ATOMS AND REACTIVE TOWARDS TEO CLASSES OF PHENOLS, ONE BEING (A) A PHENOL OF THE FORMULA
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) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |