US2771434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for breaking petroleum emulsions employing certain polyepoxide treated derivatives obtained by reaction of monoepoxides with resins
Assignee: Baker Petrolite LLC
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Filing: 1953-04-22
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Granted: 1956-11-20
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Expires: 1973-04-22
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 11:08
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER; SAID DEMULSIFIER BEING OBTAINED BY A THREE-STEP MANUFACTURING PROCESS INVOLVING (1) CONDENSATION; (2) OXYALKYLATION WITH A MONOEPOXIDE; AND (3) OXYALKYLATION WITH A POLYEPOXIDE; SAID FIRST MANUFACTURING STEP BEING A METHOD OF (A) CONDENSING (A) AN OXYALKYLATION-SUSCEPTIBLE, FUSIBLE, NON-OXYGENATED ORGANIC SOLVENT-SOLUBLE, WATER-SOLUBLE, 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 DIFUNCTIONAL ONLY IN REGARD TO METHYLOL-FORMING REACTIVITY; 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 TRIFUNCTIONAL PHENOLS; SAID PHENOL BEING OF THE FORMULA
Claim 2
Dependent Claim
136 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER; SAID DEMULSIFIER BEING OBTAINED BY A THREE-STEP MANUFACTURING PROCESS INVOLVING (1) CONDENSATION; (2) OXYALKYLATION WITH A MONOEPOXIDE; AND (3) OXYALKYLATION WITH A POLYEPOXIDE; SAID FIRST MANUFACTURING STEP BEING A METHOD OF (A) CONDENSING (A) AN OXYALKYLATION-SUSCEPTIBLE, FUSIBLE, NON-OXYGENATED ORGANIC SOLVENT-SOLUBLE, WATER-SOLUBLE, 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 DIFUNCTIONAL ONLY IN REGARD TO METHYLOL-FORMING REACTIVITY; 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 TRIFUNCTIONAL PHENOLS; SAID PHENOL BEING OF THE FORMULA
References Cited (Backward Citations)
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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) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |