US3333010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of cyclododecanol
Assignee: BASF SE
•
Filing: 1963-05-14
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Granted: 1967-07-25
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Expires: 1983-05-14
Abstract
No abstract record available.
Inventors
- 👤 Urbanek Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:03
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/04; C07C; C07C35/00; C07C35/02; C07C35/205
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
PROCESS FOR THE PRODUCTION OF CYCLODODECANOL FROM CYCLODODECATRIENE-(1,5,9) WHICH COMPRISES PASSING A GAS SELECTED FROM THE GROUP CONSISTING OF OOXYGEN AND GASES CONTAINING OXYGEN IN FREE MOLECULAR FORM THROUGH CYCLODODECATRIENE-(1,5,9) AT A TEMPERATURE OF FROM 20* TO 200* C. AT A PRESSURE OF FROM 2 TO 20 ATMOSPHERES IN THE PRESCENCE OF AN OXIDATION CATALYST FOR A PERIOD OF TIME SUFFICIENT TO PRODUCE A CONVERSION OF FROM ABOUT 2 TO ABOUT 20%, DISTILLING THE REACTION MIXTURE OBTAINED, SEPARATING A FRACTION CONTAINING SUBSTANTIAL AMOUNTS OF CYCLODODECAADIENE EPOXIDE AND CONTACTING SAID CYCLODODECADIENE EPOXIDE FRACTION WITH HYDROGEN AT A TEMPERATURE OF FROM 100* TO 140*C. AT A PRESSURE OF 100 TO 400 ATMOSPHERES IN THE PRESENCE OF A HYDROGENATION CATALYST
Claim 2
Dependent Claim
117 words
PROCESS FOR THE PRODUCTION OF CYCLODODECANOL FROM CYCLODODECATRIENE-(1,5,9) WHICH COMPRISES PASSING A GAS SELECTED FROM THE GROUP CONSISTING OF OOXYGEN AND GASES CONTAINING OXYGEN IN FREE MOLECULAR FORM THROUGH CYCLODODECATRIENE-(1,5,9) AT A TEMPERATURE OF FROM 20* TO 200* C. AT A PRESSURE OF FROM 2 TO 20 ATMOSPHERES IN THE PRESCENCE OF AN OXIDATION CATALYST FOR A PERIOD OF TIME SUFFICIENT TO PRODUCE A CONVERSION OF FROM ABOUT 2 TO ABOUT 20%, DISTILLING THE REACTION MIXTURE OBTAINED, SEPARATING A FRACTION CONTAINING SUBSTANTIAL AMOUNTS OF CYCLODODECAADIENE EPOXIDE AND CONTACTING SAID CYCLODODECADIENE EPOXIDE FRACTION WITH HYDROGEN AT A TEMPERATURE OF FROM 100* TO 140*C. AT A PRESSURE OF 100 TO 400 ATMOSPHERES IN THE PRESENCE OF A HYDROGENATION CATALYST
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |