US2792372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for breaking petroleum emulsions employing certain oxyalkylated higher polyethylene amines
Assignee: Baker Petrolite LLC
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Filing: 1954-09-15
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Granted: 1957-05-14
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Expires: 1974-09-15
Abstract
No abstract record available.
Inventors
- 👤 Woodrow J Dickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:13
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE CHARACTERIZED BY SUBJECTING THE EMULSION TO A DEMULSIFYING AGENT INCLUDING A COGENERIC MIXTURE OF A HOMOLOGOUS SERIES OF GLYCOL ETHERS OF RESIDUAL NONDISTILLED POLYETHYLENE POLYAMINES HAVING AT LEAST 6 NITROTEN ATOMS OBTAINED IN THE PRODUCTION OF POLYETHYLENE POLYAMINES FROM AMMONIA AND ETHYLENE DICHLORIDE; SAID COGENERIC MIXTURE BEING DERIVED EXCLUSIVELY FROM SAID RESIDUAL POLYETHYLENE POLYAMINES, PROPYLENE OXIDE AND ETHYLENE OXIDE IN SUCH WEIGHT PROPORTIONS SO THE AVERAGE COMPOSITION OF SAID COGENERIC MIXTURE, STATE IN TERMS OF INITIAL REACTANTS LIES APPROXIMATELY WITHIN THE TRAPEZOID OF THE ACCOMPANYING DRAWING IN WHICH THE MINIMUM RESIDUAL POLYETHYLENE POLYAMINE CONTENT IS AT LEAST 1.75% AND WITH TRAPEZOID IS IDENTIFIED BY THE FACT THAT ITS AREA LIES WITHIN THE STRAIGHT LINES A,B,F,E.
Claim 2
Dependent Claim
125 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE CHARACTERIZED BY SUBJECTING THE EMULSION TO A DEMULSIFYING AGENT INCLUDING A COGENERIC MIXTURE OF A HOMOLOGOUS SERIES OF GLYCOL ETHERS OF RESIDUAL NONDISTILLED POLYETHYLENE POLYAMINES HAVING AT LEAST 6 NITROTEN ATOMS OBTAINED IN THE PRODUCTION OF POLYETHYLENE POLYAMINES FROM AMMONIA AND ETHYLENE DICHLORIDE; SAID COGENERIC MIXTURE BEING DERIVED EXCLUSIVELY FROM SAID RESIDUAL POLYETHYLENE POLYAMINES, PROPYLENE OXIDE AND ETHYLENE OXIDE IN SUCH WEIGHT PROPORTIONS SO THE AVERAGE COMPOSITION OF SAID COGENERIC MIXTURE, STATE IN TERMS OF INITIAL REACTANTS LIES APPROXIMATELY WITHIN THE TRAPEZOID OF THE ACCOMPANYING DRAWING IN WHICH THE MINIMUM RESIDUAL POLYETHYLENE POLYAMINE CONTENT IS AT LEAST 1.75% AND WITH TRAPEZOID IS IDENTIFIED BY THE FACT THAT ITS AREA LIES WITHIN THE STRAIGHT LINES A,B,F,E.
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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 |