US2828266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for breaking petroleum emulsions
Assignee: Baker Petrolite LLC
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Filing: 1955-08-03
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Granted: 1958-03-25
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Expires: 1975-08-03
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Smith Alvin Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:23
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PROCESS OF BREAKING PETROLUM EMULSIONS OF THE WATER-IN-OIL TYPE CHATACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFYING AGENT; SAID DEMULSIFYING AGENT BEING A MIXTURE OF AT LEAST 60% BY WEIGHT AND NOT OVER 90% BY WEIGHT OF (A) AN AROMATIC SOLVENT-SOLUBLE NONIONIC DEMULSFIER CONTAINIG A PLURALITY OF LOWER OXYALKALINE GROUPS, AND AT LEAST 10% BY WEIGHT AND NOT OVER 40% BT WEIGHT OF (B) AMMONIUM SALTS OBTAINED BY THE MONOSULFONATION AND NEUTRAZALATION OF NONYL PHENOL FOOTS; SAID FOOTS BEING CHARACTERIZED BY A DINOYL PHENOL TO NONYL PHENOL RATIO WITHIN THE RANGE OF 2:1 TO 3:1 AND WITH THE PROVISO THAT SAID NONYL PHENOL FOOTS CONTAIN NOT LESS THAN 90% OF NONYLATED PHENOLS.
Claim 2
Dependent Claim
116 words
A PROCESS OF BREAKING PETROLUM EMULSIONS OF THE WATER-IN-OIL TYPE CHATACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFYING AGENT; SAID DEMULSIFYING AGENT BEING A MIXTURE OF AT LEAST 60% BY WEIGHT AND NOT OVER 90% BY WEIGHT OF (A) AN AROMATIC SOLVENT-SOLUBLE NONIONIC DEMULSFIER CONTAINIG A PLURALITY OF LOWER OXYALKALINE GROUPS, AND AT LEAST 10% BY WEIGHT AND NOT OVER 40% BT WEIGHT OF (B) AMMONIUM SALTS OBTAINED BY THE MONOSULFONATION AND NEUTRAZALATION OF NONYL PHENOL FOOTS; SAID FOOTS BEING CHARACTERIZED BY A DINOYL PHENOL TO NONYL PHENOL RATIO WITHIN THE RANGE OF 2:1 TO 3:1 AND WITH THE PROVISO THAT SAID NONYL PHENOL FOOTS CONTAIN NOT LESS THAN 90% OF NONYLATED PHENOLS.
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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |