US2779784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Basic alkaline earth metal sulfonates and method of making same
Assignee: ConocoPhillips Co
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Filing: 1954-05-13
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Granted: 1957-01-29
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Expires: 1974-05-13
Abstract
No abstract record available.
Inventors
- 👤 Marion L Sharrah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:10
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/20; C10M159/24; C07; C07G; C07G99/00; C07G99/002; C07G99/0024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS FOR THE PREPARATION OF A HIGHLY BASIC ALKALINE EARTH METAL ALKYLARYL SULFONATE WHICH COMPRISES HEATING A MIXTURE COMPRISING AN OIL-SOLUBLE SUFLONIC ACID, AN ALKALINE EARTH METAL COMPOUND, AND WATER IN THE TEMPERATURE RANGE OF FROM ABOUT 220 TO ABOUT 390*F., AND AT SUPERATMOSPHERIC PRESSURES WHEREIN THE AMOUNT OF SAID ALKALINE EARTH METAL COMPOUND IS IN EXCESS OF THAT REQUIRED FOR NEUTRALIZATION OF SAID FULFONIC ACID AND THE WATER BEING PRESENT IN THE PROPORTION OF 5 TO 100 PARTS PER 10 PARTS OF SAID ALKALINE EARTH METAL COMPOUND AND SUBSEQUENTLY REMOVING THE WATER THEREFROM.
Claim 2
Dependent Claim
95 words
A PROCESS FOR THE PREPARATION OF A HIGHLY BASIC ALKALINE EARTH METAL ALKYLARYL SULFONATE WHICH COMPRISES HEATING A MIXTURE COMPRISING AN OIL-SOLUBLE SUFLONIC ACID, AN ALKALINE EARTH METAL COMPOUND, AND WATER IN THE TEMPERATURE RANGE OF FROM ABOUT 220 TO ABOUT 390*F., AND AT SUPERATMOSPHERIC PRESSURES WHEREIN THE AMOUNT OF SAID ALKALINE EARTH METAL COMPOUND IS IN EXCESS OF THAT REQUIRED FOR NEUTRALIZATION OF SAID FULFONIC ACID AND THE WATER BEING PRESENT IN THE PROPORTION OF 5 TO 100 PARTS PER 10 PARTS OF SAID ALKALINE EARTH METAL COMPOUND AND SUBSEQUENTLY REMOVING THE WATER THEREFROM.
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) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |