Patent US2506902A successfully refreshed from Google Patents.
US2506902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition agents for mineral oil lubricants and compositions containing the same
Assignee: Gulf Oil Corp
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Filing: 1947-05-26
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Granted: 1950-05-09
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Expires: 1967-05-26
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
2026-11-01 18:59
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2223/00; C10M2223/12; C10M2223/121; C10M2225/00; C10M2225/02; C10N; C10N2010/00; C10N2010/08; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
THE PROCESS OF PREPARING AN ADDITION AGENT FOR MINERAL OIL LUBRICANTS WHICH COMPRISES SIMULTANEOUSLY REACTING AT A TEMPERATURE RANGING FROM ROOM TEMPERATURE TO 350*F. AN OCTYL PHENOL WITH FROM 0.5 TO 30 PER CENT BY WEIGHT OF THE OCTYL PHENOL OF A SULFUR CHLORIDE AND FROM 0.1 TO 5 PER CENT BY WEIGHT OF THE OCTYL PHENOL OF PHOSPHORUS SESQUISULFIDE, FORMING A NEUTRAL STANNOUS SALT OF THE REACTION PRODUCT, AND CONDENSING THE NEUTRAL STANNOUS SALT AT AN ELEVATED TEMPERATURE NOT EXCEEDING 275*F. WITH FROM 0.5 TO 2 MOLS OF FORMALDEHYDE PER MOL OF OCTYL PHENOL USED IN MAKING SAID REACTION PRODUCT.
Claim 2
Dependent Claim
101 words
THE PROCESS OF PREPARING AN ADDITION AGENT FOR MINERAL OIL LUBRICANTS WHICH COMPRISES SIMULTANEOUSLY REACTING AT A TEMPERATURE RANGING FROM ROOM TEMPERATURE TO 350*F. AN OCTYL PHENOL WITH FROM 0.5 TO 30 PER CENT BY WEIGHT OF THE OCTYL PHENOL OF A SULFUR CHLORIDE AND FROM 0.1 TO 5 PER CENT BY WEIGHT OF THE OCTYL PHENOL OF PHOSPHORUS SESQUISULFIDE, FORMING A NEUTRAL STANNOUS SALT OF THE REACTION PRODUCT, AND CONDENSING THE NEUTRAL STANNOUS SALT AT AN ELEVATED TEMPERATURE NOT EXCEEDING 275*F. WITH FROM 0.5 TO 2 MOLS OF FORMALDEHYDE PER MOL OF OCTYL PHENOL USED IN MAKING SAID REACTION PRODUCT.
Claim 3
Dependent Claim
157 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL AND MINOR AMOUNTS, SUFFICIENT TO CONFER IMPROVED PRESSURECARRYING, BEARING CORROSION-INHIBITING AND DETERGENT PROPERTIES ON THE COMPOSITION OF (1) THE SIMULTANEOUS REACTION PRODUCT FORMED AT A TEMPERATURE RANGING FROM ROOM TEMPERATURE TO 350*F. OF AN OCTYL PHENOL WITH FROM 0.5 TO 30 PER CENT BY WEIGHT OF THE OCTYL PHENOL OF A SULFUR CHLORIDE AND FROM 0.1 TO 5 PER CENT BY WEIGHT OF THE OCTYL PHENOL OF PHOSPHORUS SESQUISULFIDE, AND (2) THE CONDENSATION PRODUCT FORMED AT AN ELEVATED TEMPERATURE NOT EXCEEDING 275*F. OF FORMALDEHYDE AND A SUBSTANTIALLY NEUTRAL STANNOUS SALT OF (1), THE AMOUNT OF FORMALDEHYDE BEING FROM 0.5 TO 2 MOLS PER MOL OF OCTYL PHENOL EMPLOYED TO FORM (1), AND THE AMOUNTS OF (1) AND (2) WITH RESPECT TO EACH OTHER RANGING FROM 10 TO 90 PER CENT BY WEIGHT OF (1) AND FROM 90 TO 10 PER CENT BY WEIGHT OF (2).
Claim 4
Dependent Claim
157 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL AND MINOR AMOUNTS, SUFFICIENT TO CONFER IMPROVED PRESSURECARRYING, BEARING CORROSION-INHIBITING AND DETERGENT PROPERTIES ON THE COMPOSITION OF (1) THE SIMULTANEOUS REACTION PRODUCT FORMED AT A TEMPERATURE RANGING FROM ROOM TEMPERATURE TO 350*F. OF AN OCTYL PHENOL WITH FROM 0.5 TO 30 PER CENT BY WEIGHT OF THE OCTYL PHENOL OF A SULFUR CHLORIDE AND FROM 0.1 TO 5 PER CENT BY WEIGHT OF THE OCTYL PHENOL OF PHOSPHORUS SESQUISULFIDE, AND (2) THE CONDENSATION PRODUCT FORMED AT AN ELEVATED TEMPERATURE NOT EXCEEDING 275*F. OF FORMALDEHYDE AND A SUBSTANTIALLY NEUTRAL STANNOUS SALT OF (1), THE AMOUNT OF FORMALDEHYDE BEING FROM 0.5 TO 2 MOLS PER MOL OF OCTYL PHENOL EMPLOYED TO FORM (1), AND THE AMOUNTS OF (1) AND (2) WITH RESPECT TO EACH OTHER RANGING FROM 10 TO 90 PER CENT BY WEIGHT OF (1) AND FROM 90 TO 10 PER CENT BY WEIGHT OF (2).
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) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |