US2819226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for breaking petroleum emulsions employing certain oxyalkylated amine-modified thermoplastic phenolaldehyde resins
Assignee: Baker Petrolite LLC
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Filing: 1954-03-25
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Granted: 1958-01-07
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Expires: 1974-03-25
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:41
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
THE PROCESS OF 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 PRODUCTS RESULTING FROM A TWO-STEP MANUFACTURING PROCESS CONSISTING OF FIRST CONDENSING (A) AN OXYALKYLATION-SUSCEPTIBLE, LOW-STAGE PHENOL-ALDEHYDE RESIN SOLUBLE, WATER-INSOLUBLE, LOW-STAGE PHENOL-ALDEHYDE RESIN HAVING AN AVERAGE MOLECULAR WEIGHT CORRESPONDING TO AT LEAST 3 AND NOT OVER 6 PHENOLIC NUCLEI PER RESIN MOLECULE; SAID RESIN BEING DERIVED BY REACTION BETWEEN A DIFUNCTIONAL MONOHYDRIC PHENOL AND AN ALDEHYDE HAVING NOT OVER 8 CARBON ATOMS AND REACTIVE TOWARD SAID PHENOL; SAID RESIN BEING FORMED IN THE SUBSTANTIAL ABSENCE OF PHENOLS OF FUNCTIONALITY GREATER THAN 2; SAID PHENOL BEING OF THE FORMULA
Claim 2
Dependent Claim
118 words
THE PROCESS OF 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 PRODUCTS RESULTING FROM A TWO-STEP MANUFACTURING PROCESS CONSISTING OF FIRST CONDENSING (A) AN OXYALKYLATION-SUSCEPTIBLE, LOW-STAGE PHENOL-ALDEHYDE RESIN SOLUBLE, WATER-INSOLUBLE, LOW-STAGE PHENOL-ALDEHYDE RESIN HAVING AN AVERAGE MOLECULAR WEIGHT CORRESPONDING TO AT LEAST 3 AND NOT OVER 6 PHENOLIC NUCLEI PER RESIN MOLECULE; SAID RESIN BEING DERIVED BY REACTION BETWEEN A DIFUNCTIONAL MONOHYDRIC PHENOL AND AN ALDEHYDE HAVING NOT OVER 8 CARBON ATOMS AND REACTIVE TOWARD SAID PHENOL; SAID RESIN BEING FORMED IN THE SUBSTANTIAL ABSENCE OF PHENOLS OF FUNCTIONALITY GREATER THAN 2; SAID PHENOL BEING OF THE FORMULA
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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) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |