US2526490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant composition
Assignee: Standard Oil Development Co
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Filing: 1946-12-12
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Granted: 1950-10-17
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Expires: 1966-12-12
Abstract
No abstract record available.
Inventors
- 👤 Lieber Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:59
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08G; C08G8/00; C08G8/04; C08G8/08; C08G8/12; C08G8/28; C08L; C08L91/00; C08L61/00; C08L61/04; C08L61/06; C10M2209/00; C10M2209/10; C10M2209/101
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
A PRODUCT HAVING GOOD SOLUBILITY IN HIGHLY PARAFFINIC MINERAL LUBRICATING OIL, SAID PRODUCT CONSISTING ESSENTIALLY OF A RESIN PRODUCED BY RESINIFICATION OF ONE MOLE OF AN ALKYL PHENOL HAVING 4 TO 6 CARBON ATOMS IN THE ALKYL GROUP, WITH ABOUT 1/2 TO 2 MOLES OF A LWER SATURATED ALIPHATIC ALDEHYDE HAVING 1 TO 3 CARBON ATOMS, IN THE PRESENCE OF 1/2 TO 5 VOLUMES OF INERT SOLVENT PER VOLUME OF REACTANTS, AND IN THE PRESENCE OF ABOUT 10 TO 150 PARTS BY WEIGHT OF ALUMINUM CHLORIDE CATALYST PER 100 PARTS BY WEIGHT OF ALKYL PHENOL, USING A FINAL REACTION TEMPERATURE OF 125*F. TO 300*F., SAID RESIN BEING SUBSTANTIALLY NON-VOLATILE UNDER REDUCED PRESSURE UP TO 600*F.
Claim 2
Dependent Claim
115 words
A PRODUCT HAVING GOOD SOLUBILITY IN HIGHLY PARAFFINIC MINERAL LUBRICATING OIL, SAID PRODUCT CONSISTING ESSENTIALLY OF A RESIN PRODUCED BY RESINIFICATION OF ONE MOLE OF AN ALKYL PHENOL HAVING 4 TO 6 CARBON ATOMS IN THE ALKYL GROUP, WITH ABOUT 1/2 TO 2 MOLES OF A LWER SATURATED ALIPHATIC ALDEHYDE HAVING 1 TO 3 CARBON ATOMS, IN THE PRESENCE OF 1/2 TO 5 VOLUMES OF INERT SOLVENT PER VOLUME OF REACTANTS, AND IN THE PRESENCE OF ABOUT 10 TO 150 PARTS BY WEIGHT OF ALUMINUM CHLORIDE CATALYST PER 100 PARTS BY WEIGHT OF ALKYL PHENOL, USING A FINAL REACTION TEMPERATURE OF 125*F. TO 300*F., SAID RESIN BEING SUBSTANTIALLY NON-VOLATILE UNDER REDUCED PRESSURE UP TO 600*F.
Claim 3
Dependent Claim
97 words
A COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF A WAXY MINERAL LUBRICATING OIL AND A SMALL BUT POUR DEPRESSING AMOUNT OF A MATERIAL PRODUCED BY ALDEHYDE RESINIFICAITON OF 1 MOL OF AN ALKYLATED HYDROXY AROMATIC HYDROCARBON NOT PER SE HAIVNG ANY SUBSTNATIAL POUR DEPRESSING PROPERTIES AND CONTAINING AN ALKYL GROUP HAVING FROM 3 TO 6 CARBON ATOMS WITH ABOUT 1/2 TO 2 MOLS OF AN ALDEHYDE HAVING 1 TO 3 CARBON ATOMS IN THE PRESENCE OF ABOUT 10 TO 150 PARTS BY WEIGHT OF A FRIEDEL-CRAFTS CATALYST PER 100 PARTS BY WEIGHT OF SAID AROMATIC COMPOUND.
Claim 4
Dependent Claim
97 words
A COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF A WAXY MINERAL LUBRICATING OIL AND A SMALL BUT POUR DEPRESSING AMOUNT OF A MATERIAL PRODUCED BY ALDEHYDE RESINIFICAITON OF 1 MOL OF AN ALKYLATED HYDROXY AROMATIC HYDROCARBON NOT PER SE HAIVNG ANY SUBSTNATIAL POUR DEPRESSING PROPERTIES AND CONTAINING AN ALKYL GROUP HAVING FROM 3 TO 6 CARBON ATOMS WITH ABOUT 1/2 TO 2 MOLS OF AN ALDEHYDE HAVING 1 TO 3 CARBON ATOMS IN THE PRESENCE OF ABOUT 10 TO 150 PARTS BY WEIGHT OF A FRIEDEL-CRAFTS CATALYST PER 100 PARTS BY WEIGHT OF SAID AROMATIC COMPOUND.
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) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |