US2562800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant composition of mineral oil containing a condensation product of aliphatic-aromatic ketone and a sulfur chloride
Assignee: Standard Oil Development Co
•
Filing: 1947-12-18
•
Granted: 1951-07-31
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Expires: 1967-12-18
Abstract
No abstract record available.
Inventors
- 👤 Lieber Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:31
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/086; C10M2219/087; C10M2219/089
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A COMPOSITION CONSISTING ESSENTIALLY OF A NORMALLY NON-VOLATILE HYDROCARBON MATERIAL AND A POUR DEPRESSING AMOUNT OF A HIGH MOLECULAR WEIGHT OIL-SOLUBLE PRODUCT OBTAINED BY REACTING ABOUT 100 PARTS BY WEIGHT OF A KETONE HAVING THE GENERALLY FORMULA R-CO-AR, IN WHICH R REPRESENTS AN ALIPHATIC GROUP HAVING MORE THAN 10 CARBON ATOMS, AND AR IS AN AROMATIC GROUP, WITH ABOUT 5 TO 50 PARTS BY WEIGHT OF A SULFUR CHORIDE IN THE PRESENCE OF ABOUT 1/2 TO 15 PARTS BY WEIGHT OF A FRIEDEL-CRAFTS CATALYST AT A TEMPERATURE OF ABOUT 80-200* F., TO PRODUCE A HIGH MOLECULAR WEIGHT BUT OIL-SOLUBLE CONDENSATION PRODUCT, HYDROLYZING AND REMOVING THE CATALYST, AND DISTILLING THE REACTION PRODUCT TO OBTAIN AS DISTILLATION RESIDUE THE DESIRED HIGH MOLECULAR OIL-SOLUBLE PRODUCT.
Claim 2
Dependent Claim
122 words
A COMPOSITION CONSISTING ESSENTIALLY OF A NORMALLY NON-VOLATILE HYDROCARBON MATERIAL AND A POUR DEPRESSING AMOUNT OF A HIGH MOLECULAR WEIGHT OIL-SOLUBLE PRODUCT OBTAINED BY REACTING ABOUT 100 PARTS BY WEIGHT OF A KETONE HAVING THE GENERALLY FORMULA R-CO-AR, IN WHICH R REPRESENTS AN ALIPHATIC GROUP HAVING MORE THAN 10 CARBON ATOMS, AND AR IS AN AROMATIC GROUP, WITH ABOUT 5 TO 50 PARTS BY WEIGHT OF A SULFUR CHORIDE IN THE PRESENCE OF ABOUT 1/2 TO 15 PARTS BY WEIGHT OF A FRIEDEL-CRAFTS CATALYST AT A TEMPERATURE OF ABOUT 80-200* F., TO PRODUCE A HIGH MOLECULAR WEIGHT BUT OIL-SOLUBLE CONDENSATION PRODUCT, HYDROLYZING AND REMOVING THE CATALYST, AND DISTILLING THE REACTION PRODUCT TO OBTAIN AS DISTILLATION RESIDUE THE DESIRED HIGH MOLECULAR OIL-SOLUBLE PRODUCT.
References Cited (Backward Citations)
US1756817A
Cited
US2147547A
Cited
US2174248A
Cited
US2242260A
Cited
US2239534A
Cited
US2384935A
Cited
US2319662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |