Patent US2982728A successfully refreshed from Google Patents.
US2982728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
whitney
Assignee: —
•
Filing: —
•
Granted: 1961-05-02
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Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:43
CPC Classifications
C; C10; C10M; C10M107/00; C10M107/02; C10M107/18; C10M143/00; C10M143/18; C10M2203/00; C10M2209/00; C10M2209/02; C10M2209/10; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04; C10N2030/00; C10N2030/04; C10N2040/00; C10N2040/25; C10N2060/00; C10N2060/04; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
187 words
A PROCESS FOR PRODUCING A MATERIAL HAVING DETERGENT AND DISPERSANT PROPERTIES WHICH COMPRISES SUBJECTING A HYDROCARBON FRACTION, HAVING A REFRACTIVE INDEX ND20 OF BETWEEN 1.440 AND 1.520, A MINIMUM MOLECULAR WEIGHT OF 450, A VISCOSITY OF AT LEAST 50 SUS AT 210*F., A VISCOSITY INDEX (WHEN DEETRIMINABLE) AT AT LEAST 50, AND AN AVERAGE CARBON ATOM CONTENT PER MOLECULE OF AT LEAST 40, TO OXIDATION WITH AIR AT A TEMPERATURE OF 100*F. TO 800*F. FOR A TIME OF 3 TO 75 HOURS AND AT A PRESSURE OF 10 TO 200 P.S.I.A., SAID AIR BEING SUPPLIED AT A RATE OF 0.01 TO 3.0 CF. PER HOUR PER POUND OF SAID HYDROCARBON, RECOVERING THE OXIDIZED FRACTION OF SAID HYDROCARBON BY SOLVENT EXTRACTION, ADDING TO SAID OXIDIZED PORTION 0.1 TO 20 PERCENT BY WEIGHT OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH HYDROXIDES, OXIDES, AND CARBONATES, HEATING SAID MIXTURE AT A TEMPERATURE IN THE RANGE OF 50 TO 500*F. FOR A TIME OF 5 MINUTES TO 5 HOURS, AND RECOVERING THE RESULTING TREATED MATERIAL, SAID MATERIAL HAVING DETERGENT AND DISPERSANT PROPERTIES IN LUBRICATING OIL COMPOSITIONS.
Claim 2
Dependent Claim
187 words
A PROCESS FOR PRODUCING A MATERIAL HAVING DETERGENT AND DISPERSANT PROPERTIES WHICH COMPRISES SUBJECTING A HYDROCARBON FRACTION, HAVING A REFRACTIVE INDEX ND20 OF BETWEEN 1.440 AND 1.520, A MINIMUM MOLECULAR WEIGHT OF 450, A VISCOSITY OF AT LEAST 50 SUS AT 210*F., A VISCOSITY INDEX (WHEN DEETRIMINABLE) AT AT LEAST 50, AND AN AVERAGE CARBON ATOM CONTENT PER MOLECULE OF AT LEAST 40, TO OXIDATION WITH AIR AT A TEMPERATURE OF 100*F. TO 800*F. FOR A TIME OF 3 TO 75 HOURS AND AT A PRESSURE OF 10 TO 200 P.S.I.A., SAID AIR BEING SUPPLIED AT A RATE OF 0.01 TO 3.0 CF. PER HOUR PER POUND OF SAID HYDROCARBON, RECOVERING THE OXIDIZED FRACTION OF SAID HYDROCARBON BY SOLVENT EXTRACTION, ADDING TO SAID OXIDIZED PORTION 0.1 TO 20 PERCENT BY WEIGHT OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH HYDROXIDES, OXIDES, AND CARBONATES, HEATING SAID MIXTURE AT A TEMPERATURE IN THE RANGE OF 50 TO 500*F. FOR A TIME OF 5 MINUTES TO 5 HOURS, AND RECOVERING THE RESULTING TREATED MATERIAL, SAID MATERIAL HAVING DETERGENT AND DISPERSANT PROPERTIES IN LUBRICATING OIL COMPOSITIONS.
Claim 3
Dependent Claim
122 words
A PROCESS FOR PRODUCING A MATERIAL HAVING DETERGENT AND DISPERSANT PROPERTIES WHICH COMPRISES SUBJECTING A HYDROCARBON FRACTION, HAVING A REFRACTIVE INDEX ND20 OF BETWEEN 1.440 AND 1.520, A MINIMUM MOLECULE WEIGHT OF 450, A VISCOSITY OF AT LEAST 50 SUS AT 210*F., A VISCOSITY INDEX (WHEN DETERMINABLE) OF AT LEAST 50, AND AN AVERAGE CARBON ATOM CONTENT PER MOLECULE OF AT LEAST 40, TO OXIDATION IN THE PRESENCE OF AN OXIDIZING AGENT UNDER OXIDIZING CONDITIONS AND AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH HYDROXIDES, OXIDES, AND CARBONATES, SAID OXIDATION BEING SUFFICIENT TO PROVIDE AT LEAST A 1.5 FOLD INCREASE IN VISCOSITY, AND RECOVERING A RESULTING MATERIAL HAVING DETERGENT AND DISPERSANT PROPERTIES WHEN USED IN A LUBRICATING OIL.
Claim 4
Dependent Claim
122 words
A PROCESS FOR PRODUCING A MATERIAL HAVING DETERGENT AND DISPERSANT PROPERTIES WHICH COMPRISES SUBJECTING A HYDROCARBON FRACTION, HAVING A REFRACTIVE INDEX ND20 OF BETWEEN 1.440 AND 1.520, A MINIMUM MOLECULE WEIGHT OF 450, A VISCOSITY OF AT LEAST 50 SUS AT 210*F., A VISCOSITY INDEX (WHEN DETERMINABLE) OF AT LEAST 50, AND AN AVERAGE CARBON ATOM CONTENT PER MOLECULE OF AT LEAST 40, TO OXIDATION IN THE PRESENCE OF AN OXIDIZING AGENT UNDER OXIDIZING CONDITIONS AND AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH HYDROXIDES, OXIDES, AND CARBONATES, SAID OXIDATION BEING SUFFICIENT TO PROVIDE AT LEAST A 1.5 FOLD INCREASE IN VISCOSITY, AND RECOVERING A RESULTING MATERIAL HAVING DETERGENT AND DISPERSANT PROPERTIES WHEN USED IN A LUBRICATING OIL.
Claim 5
Dependent Claim
148 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR PORTION OF LUBRICATING OIL AND AT LEAST 0.1 PERCENT BY WEIGHT OF AN OIL SOLUBLE MATERIAL HAVING DETERGENT AND DISPERSANT PROPERTIES, SAID MATERIAL PRODUCED BY OXIDATION AND TREATMENT WITH AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH HYDROXIDES, OXIDES AND CARBONATES, OF A HYDROCARBON FRACTION HAVING A REFRACTIVE INDEX ND20 OF BETWEEN 1.440 AND 1.520, AN AVERAGE MOLECULAR WEIGHT OF AT LEAST 550 AND NO APPRECIABLE PORTION THEREOF HAVING A MOLECULAR WEIGHT BELOW 450, A VISCOSITY OF AT LEAST 50 SUS AT 210*F., A VISCOSITY INDEX (WHEN DETERMINABLE) OF AT LEAST 50, AND AN AVERAGE CARBON ATOM CONTENT PER MOLECULE OF AT LEAST 40, THE SOLID OXIDATION PRODUCT HAVING AN ACID NUMBER BELOW 50, A SAPONIFICATION NUMBER IN THE RANGE OF 0 TO 100, AND AN OXYGEN CONTENT IN THE RANGE OF 1 TO 15 PERCENT BY WEIGHT.
Claim 6
Dependent Claim
148 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR PORTION OF LUBRICATING OIL AND AT LEAST 0.1 PERCENT BY WEIGHT OF AN OIL SOLUBLE MATERIAL HAVING DETERGENT AND DISPERSANT PROPERTIES, SAID MATERIAL PRODUCED BY OXIDATION AND TREATMENT WITH AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH HYDROXIDES, OXIDES AND CARBONATES, OF A HYDROCARBON FRACTION HAVING A REFRACTIVE INDEX ND20 OF BETWEEN 1.440 AND 1.520, AN AVERAGE MOLECULAR WEIGHT OF AT LEAST 550 AND NO APPRECIABLE PORTION THEREOF HAVING A MOLECULAR WEIGHT BELOW 450, A VISCOSITY OF AT LEAST 50 SUS AT 210*F., A VISCOSITY INDEX (WHEN DETERMINABLE) OF AT LEAST 50, AND AN AVERAGE CARBON ATOM CONTENT PER MOLECULE OF AT LEAST 40, THE SOLID OXIDATION PRODUCT HAVING AN ACID NUMBER BELOW 50, A SAPONIFICATION NUMBER IN THE RANGE OF 0 TO 100, AND AN OXYGEN CONTENT IN THE RANGE OF 1 TO 15 PERCENT BY WEIGHT.
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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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |