US2539424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of ps-amine reaction products as lubricating oil additives and lubricants containing same
Assignee: Standard Oil Co
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Filing: 1946-05-18
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Granted: 1951-01-30
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Expires: 1966-05-18
Abstract
No abstract record available.
Inventors
- 👤 Everett C Hughes
- 👤 John D Bartleson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:07
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/123; C10M2201/00; C10M2201/04; C10M2201/043; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/32; C10M2219/00; C10M2219/02; C10M2219/022; C10M2223/00; C10M2223/08; C10M2223/12; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
158 words
A LUBRICANT COMPRISING A MINERAL LUBRICATING OIL AND AN AMOUNT OF A REACTION PRODUCT WITHIN THE RANGE OF 0.05 AND 10.0 WEIGHT PER CENT TO IMPROVE SAID OIL IN USE, SAID REACTION PRODUCT BEING PREPARED BY REACTING ONE MOLE OF AN ORGANIC ALIPHATIC AMINE HAVING AT LEAST ONE AMINE HYDROGEN AND AN ALIPHATIC RADICAL OF AT LEAST 12 CARBON ATOMS WITH AN AMOUNT WITHIN THE RANGE OF 0.5 TO 2.5 MOLES OF A PHOSPHORUS SULFIDE AT A TEMPERATURE IN THE RANGE OF 400* F. TO ABOUT 600* F. AND ESTERIFYING THE RESULTING PRODUCT WITH AN AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ALCOHOLS AND PHENOLS WITHIN THE RANGE OF 0.2 TO 6.0 MOLES OF SAID COMPOUND PER MOLE OF PRODUCT AT A TEMPERATURE IN THE RANGE OF 100* F. TO 400* F. TO PRODUCE AN OIL DISPERSIBLE ESTER DERIVATIVE SUITABLE FOR ADDITION TO A MINERAL LUBRICATING OIL TO INHIBIT DETERIORATION THEREOF UNDER SERVICE CONDITIONS.
Claim 2
Dependent Claim
158 words
A LUBRICANT COMPRISING A MINERAL LUBRICATING OIL AND AN AMOUNT OF A REACTION PRODUCT WITHIN THE RANGE OF 0.05 AND 10.0 WEIGHT PER CENT TO IMPROVE SAID OIL IN USE, SAID REACTION PRODUCT BEING PREPARED BY REACTING ONE MOLE OF AN ORGANIC ALIPHATIC AMINE HAVING AT LEAST ONE AMINE HYDROGEN AND AN ALIPHATIC RADICAL OF AT LEAST 12 CARBON ATOMS WITH AN AMOUNT WITHIN THE RANGE OF 0.5 TO 2.5 MOLES OF A PHOSPHORUS SULFIDE AT A TEMPERATURE IN THE RANGE OF 400* F. TO ABOUT 600* F. AND ESTERIFYING THE RESULTING PRODUCT WITH AN AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ALCOHOLS AND PHENOLS WITHIN THE RANGE OF 0.2 TO 6.0 MOLES OF SAID COMPOUND PER MOLE OF PRODUCT AT A TEMPERATURE IN THE RANGE OF 100* F. TO 400* F. TO PRODUCE AN OIL DISPERSIBLE ESTER DERIVATIVE SUITABLE FOR ADDITION TO A MINERAL LUBRICATING OIL TO INHIBIT DETERIORATION THEREOF UNDER SERVICE CONDITIONS.
Claim 3
Dependent Claim
134 words
AS A COMPOSITION USABLE FOR LUBRICANT PURPOSES A REACTION PRODUCT PREPARED BY REACTING ONE MOLE OF AN ORGANIC ALIPHATIC AMINE HAVING AT LEAST ONE AMINE HYDROGEN AND AN ALIPHATIC RADICAL OF AT LEAST 12 CARBON ATOMS WITH AN AMOUNT WITHIN THE RANGE OF 0.5 TO 2.5 MOLES OF A PHOSPHORUS SULFIDE AT A TEMPERATURE IN THE RANGE OF 400* F. TO ABOUT 600* F. AND ESTERIFYING THE RESULTING PRODUCT WITH AN AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ALCOHOLS AND PHENOLS WITHIN THE RANGE OF 0.2 TO 6.0 MOLES OF SAID COMPOUND PER MOLE OF PRODUCT AT A TEMPERATURE IN THE RANGE OF 100* F. TO 400* F. TO PRODUCE AN OIL DISPERSIBLE ESTER DERIVATIVE SUITABLE FOR ADDITION TO A MINERAL LUBRICATING OIL TO INHIBIT DETERIORATION THEREOF UNDER SERVICE CONDITIONS.
Claim 4
Dependent Claim
134 words
AS A COMPOSITION USABLE FOR LUBRICANT PURPOSES A REACTION PRODUCT PREPARED BY REACTING ONE MOLE OF AN ORGANIC ALIPHATIC AMINE HAVING AT LEAST ONE AMINE HYDROGEN AND AN ALIPHATIC RADICAL OF AT LEAST 12 CARBON ATOMS WITH AN AMOUNT WITHIN THE RANGE OF 0.5 TO 2.5 MOLES OF A PHOSPHORUS SULFIDE AT A TEMPERATURE IN THE RANGE OF 400* F. TO ABOUT 600* F. AND ESTERIFYING THE RESULTING PRODUCT WITH AN AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ALCOHOLS AND PHENOLS WITHIN THE RANGE OF 0.2 TO 6.0 MOLES OF SAID COMPOUND PER MOLE OF PRODUCT AT A TEMPERATURE IN THE RANGE OF 100* F. TO 400* F. TO PRODUCE AN OIL DISPERSIBLE ESTER DERIVATIVE SUITABLE FOR ADDITION TO A MINERAL LUBRICATING OIL TO INHIBIT DETERIORATION THEREOF UNDER SERVICE CONDITIONS.
References Cited (Backward Citations)
US2146584A
Cited
US2403894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |