US2796441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic lubricating composition
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-03-17
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Granted: 1957-06-18
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Expires: 1974-03-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph K Mertzweiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:17
CPC Classifications
C; C10; C10M; C10M105/00; C10M105/08; C10M105/10; C10M105/12; C10M105/18; C10M105/20; C10M105/32; C10M105/34; C10M105/36; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/109; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR THE PREPARATION OF FORMAL LUBRICATING COMPOSITIONS WHICH COMPRISES REACTING (1) A CRUDE ALCOHOL MIXTURE OBTAINED BY THE REACTION OF A MIXTURE OF SUBSTANTIALLY C12 TO C13 OLEFINS WITH CARBON MONOXIDE AND HYDROGEN, THEREBY OBTAINING A MIXTURE OF PRODUCTS WHICH IS THEN FURTHER HYDROGENATED TO FORM SAID CRUDE ALCOHOL MIXTURE, AND (2) A FORMALDEHYDE DONOR SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE, PARAFORMALDEHYDE, FORMALIN AND HEXA-METHYLENE-TETRA-AMINE; AT A TEMPERATURE OF ABOUT 150-300 F. IN THE PRESENCE OF AN ACIDIC CATALYST AND STRIPPING THE MIXTURE OF PRODUCTS THUS OBTAINED TO VAPOR TEMPERATURES EQUIVALENT TO ABOUT 650 TO 750*F.
Claim 2
Dependent Claim
99 words
A PROCESS FOR THE PREPARATION OF FORMAL LUBRICATING COMPOSITIONS WHICH COMPRISES REACTING (1) A CRUDE ALCOHOL MIXTURE OBTAINED BY THE REACTION OF A MIXTURE OF SUBSTANTIALLY C12 TO C13 OLEFINS WITH CARBON MONOXIDE AND HYDROGEN, THEREBY OBTAINING A MIXTURE OF PRODUCTS WHICH IS THEN FURTHER HYDROGENATED TO FORM SAID CRUDE ALCOHOL MIXTURE, AND (2) A FORMALDEHYDE DONOR SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE, PARAFORMALDEHYDE, FORMALIN AND HEXA-METHYLENE-TETRA-AMINE; AT A TEMPERATURE OF ABOUT 150-300 F. IN THE PRESENCE OF AN ACIDIC CATALYST AND STRIPPING THE MIXTURE OF PRODUCTS THUS OBTAINED TO VAPOR TEMPERATURES EQUIVALENT TO ABOUT 650 TO 750*F.
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) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |