Patent US3769363A successfully refreshed from Google Patents.
US3769363A
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US
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Oligomerization of olefins with boron trifluoride
Assignee: Mobil Oil AS
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Filing: 1972-03-13
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Granted: 1973-10-30
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Expires: 1992-03-13
Abstract
Abstract A PROCESS IS PROVIDED FOR OLIGOMERIZING OLEFINS, TO OBTAIN A FLUID IN WHICH THE TRIMER TO TETRAMER AND HIGHER RATIO IS AT LEAST FOUR, WHICH COMPRISES: CONTACTING SAID OLEFINS IN A REACTION ZONE WITH A CARBOXYLIC ACID-PROMOTED BORON TRIFLUORIDE CATALYST, SAID CARBOXYLIC ACID HAVING AT LEAST 3 CARBON ATOMS, IN A MOLE RATIO OF PROMOTER TO OLEFINS OF FROM ABUT 0.005:1 TO ABOUT 0.05:1 AND AT A TEMPERATURE OF FROM ABOUT 0*C., TO ABOUT 20*C., IN THE PRESENCE OF FREE BORON TRIFLUORIDE.
Inventors
- 👤 J Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:16
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/20; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1213; C07C2531/00; C07C2531/02; C07C2531/04
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |