US2513060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant compositions containing organic oxidized and sulfurized esters
Assignee: Gulf Oil Corp
•
Filing: 1946-10-11
•
Granted: 1950-06-27
•
Expires: 1966-10-11
Abstract
No abstract record available.
Inventors
- 👤 Herschel G Smith
- 👤 Troy L Cantrell
- 👤 John G Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:36
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/006; C10; C10M; C10M135/00; C10M135/02; C10M135/06; C11C3/04; C10M2219/00; C10M2219/02; C10M2219/024
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
102 words
THE METHOD OF PREPARING AN OXIDIZED SUL FURIZED FATTY MONO-ESTER WHICH COMPRISES OXIDIZING TO AN IODINE NUMBER NOT BELOW ABOUT 50 A FATTY OIL CONTAINING GLYCERIDES OF UNSATURATED FATTY ACIDS AND HAVING AN IODINE NUMBER ABOVE ABOUT 70, REACTING THE OXIDIZED FATTY OIL WITH SULFUR TO SULFURIZE THE SAME, SUBJECTING THE OXIDIZED SULFURIZED FATTY OIL TO ALCOHOLYSLS WITH A MONOHYDRIC ALCHOLO IN THE PRESENCE OF AN ALCOHOLYSIS CATALYST TO LIBERATE COMPLETELY THE GLYCERING FROM THE OXIDIZED SULFURIZED GLYCERIDES AND TO FORM THE ESTERS OF SAID ALCOHOL AN THE LIBERATED OXIDIZED SULFURIZED FATTY ACIDS AND SEPARATELY RECOVERING THE ESTERS AND GLYCERINE SO OBTAINED.
Claim 2
Independent Claim
102 words
THE METHOD OF PREPARING AN OXIDIZED SUL FURIZED FATTY MONO-ESTER WHICH COMPRISES OXIDIZING TO AN IODINE NUMBER NOT BELOW ABOUT 50 A FATTY OIL CONTAINING GLYCERIDES OF UNSATURATED FATTY ACIDS AND HAVING AN IODINE NUMBER ABOVE ABOUT 70, REACTING THE OXIDIZED FATTY OIL WITH SULFUR TO SULFURIZE THE SAME, SUBJECTING THE OXIDIZED SULFURIZED FATTY OIL TO ALCOHOLYSLS WITH A MONOHYDRIC ALCHOLO IN THE PRESENCE OF AN ALCOHOLYSIS CATALYST TO LIBERATE COMPLETELY THE GLYCERING FROM THE OXIDIZED SULFURIZED GLYCERIDES AND TO FORM THE ESTERS OF SAID ALCOHOL AN THE LIBERATED OXIDIZED SULFURIZED FATTY ACIDS AND SEPARATELY RECOVERING THE ESTERS AND GLYCERINE SO OBTAINED.
Claim 3
Dependent Claim
65 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL AND A MINOR AMOUNT, SUFFICIENT TO CONFER IMPROVED PRESSURE CARRYING PROPERTIES ON THE COMPOSITION, OF AN ESTER OF A MONOHYDRIC ALCOHOL AND AN OXIDIZED SULFURIZED FATTY ACID DERIVED FROM AN UNSATURATED FATTY OIL HAVING AN IODINE NUMBER ABOVE ABOUT 70, SAID ESTER CONTAINING AT LEAST 2 PER CENT BY WEIGHT OF COMBINED SULFUR.
Claim 4
Dependent Claim
65 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL AND A MINOR AMOUNT, SUFFICIENT TO CONFER IMPROVED PRESSURE CARRYING PROPERTIES ON THE COMPOSITION, OF AN ESTER OF A MONOHYDRIC ALCOHOL AND AN OXIDIZED SULFURIZED FATTY ACID DERIVED FROM AN UNSATURATED FATTY OIL HAVING AN IODINE NUMBER ABOVE ABOUT 70, SAID ESTER CONTAINING AT LEAST 2 PER CENT BY WEIGHT OF COMBINED SULFUR.
References Cited (Backward Citations)
US2307494A
Cited
US2360904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |