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Patent US3168588A successfully refreshed from Google Patents.
US3168588A
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Polymerized ethylene lubricating oils from alkanol modified catalysts
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1960-09-14
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Granted: 1965-02-02
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Expires: 1980-09-14
Abstract
No abstract record available.
Inventors
- 👤 Herschel T White
- 👤 Jr Arthur W Langer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:04
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/0201; B01J31/0202; B01J31/26; B01J31/36; B01J31/38; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C08; C08F; C08F10/00; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/16; C10L1/1625; C10L1/1633; B01J2231/00; B01J2231/10; B01J2231/12; B01J2231/20; B01J27/00; B01J27/06; B01J27/08; B01J27/10; C07C2527/00; C07C2527/06; C07C2527/133; C07C2527/135; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/26; C07C2531/36; C07C2531/38; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/946
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A METHOD OF PREPARING A HYDROCARBON OIL HAVING A MOLECULAR WEIGHT IN THE RANGE OF 80 TO 2000, SAID OIL BEING SUITABLE FOR LUBRICATING PURPOSES WHICH COMPRISES POLYMERIZING AN ETHYLENE-CONTAINING GAS IN THE PRESENCE OF A CATALYST CONSISTING OF A HALIDE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, AND VANADIUM AND AN ALUMINUM ALKYL COMPOUND HAVING THE FORMULA AIRNX3-N, N REPRESENTING A NUMBER OF AT LEAST 1 BUT LESS THAN 2 IN THE PRESENCE OF A HALOGENATED AROMATIC HYDROCARBON DILUENT, AT A PRESSURE OF 0-50 P.S.I.G., THE IMPROVEMENT WHICH COMPRISES UTILIZING A MINOR AMOUNT OF A C1-C8 ALKANOL AS A CATALYST MODIFIER, SAID ALKANOL BEING PRESENT IN AN AMOUNT SUCH THAT THE RATIO OF ALKANOL TO THE ALKYL OF THE ALUMINUM ALKYL AFTER REDUCTION OF THE TRANSITION METAL HALIDE IS NOT GREATER THAN 0.5/1.
Claim 2
Dependent Claim
140 words
IN A METHOD OF PREPARING A HYDROCARBON OIL HAVING A MOLECULAR WEIGHT IN THE RANGE OF 80 TO 2000, SAID OIL BEING SUITABLE FOR LUBRICATING PURPOSES WHICH COMPRISES POLYMERIZING AN ETHYLENE-CONTAINING GAS IN THE PRESENCE OF A CATALYST CONSISTING OF A HALIDE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, AND VANADIUM AND AN ALUMINUM ALKYL COMPOUND HAVING THE FORMULA AIRNX3-N, N REPRESENTING A NUMBER OF AT LEAST 1 BUT LESS THAN 2 IN THE PRESENCE OF A HALOGENATED AROMATIC HYDROCARBON DILUENT, AT A PRESSURE OF 0-50 P.S.I.G., THE IMPROVEMENT WHICH COMPRISES UTILIZING A MINOR AMOUNT OF A C1-C8 ALKANOL AS A CATALYST MODIFIER, SAID ALKANOL BEING PRESENT IN AN AMOUNT SUCH THAT THE RATIO OF ALKANOL TO THE ALKYL OF THE ALUMINUM ALKYL AFTER REDUCTION OF THE TRANSITION METAL HALIDE IS NOT GREATER THAN 0.5/1.
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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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |