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US2599538A
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Process of demulsifying
Assignee: Baker Petrolite LLC
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Filing: 1951-07-20
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Granted: 1952-06-10
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Expires: 1971-07-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles M Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:14
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PROCESS FOR BREAKING EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER INCLUDING AN ORGANIC POLYESTER OF A DIBASIC ACID AND A GLYCOL, IN WHICH THE GLYCOL IS AN ALIPHATIC GLYCOL, HAVING NOT MORE THAN 6 CARBON ATOMS AND HAVING THE CARBON ATOMS JOINED TOGETHER BY CARBON TO CARBON LINKAGES, AND IN WHICH THE DIBASIC ACID IS A DICARBOXY ACID HAVING LESS THAN 8 CARBON ATOMS, AND IN WHICH THE RATIO OF GLYCOL TO DIBASIC ACID RESIDUES IS IN THE RANGE OF 0.5:1 TO 2.0:1.
Claim 2
Dependent Claim
93 words
A PROCESS FOR BREAKING EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER INCLUDING AN ORGANIC POLYESTER OF A DIBASIC ACID AND A GLYCOL, IN WHICH THE GLYCOL IS AN ALIPHATIC GLYCOL, HAVING NOT MORE THAN 6 CARBON ATOMS AND HAVING THE CARBON ATOMS JOINED TOGETHER BY CARBON TO CARBON LINKAGES, AND IN WHICH THE DIBASIC ACID IS A DICARBOXY ACID HAVING LESS THAN 8 CARBON ATOMS, AND IN WHICH THE RATIO OF GLYCOL TO DIBASIC ACID RESIDUES IS IN THE RANGE OF 0.5:1 TO 2.0:1.
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) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |