US3287423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of cyclic alcohols by oxidation in the presence of boric acid
Assignee: Stamicarbon BV
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Filing: 1962-12-17
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Granted: 1966-11-22
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Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 Johannes W M Steeman
- 👤 Johan P H Von Den Hoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:39
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/48; C07C29/50; C07C29/52; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A PROCESS FOR THE PREPARATION OF A CYCLIC ALCOHOL BY THE OXIDATION OF A SATURATED CYCLIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTANE, CYCLOHEXANE, CYCLOHEPTANE, CYCLOOCTANE AND CYCLODODECANE BY PREPARING A SUSPENSION OF BORIC ACID IN SAID HYDROCARBON AND THEN CONTACTING SAID SUSPENSION WITH MOLECULAR OXYGEN AT A TEMPERATURE OF 100 TO 300* C. FOLLOWED BY HYDROLYSIS OF THE RESULTING OXIDATION PRODUCT, THE IMPROVEMENT WHICH COMPRISES PREPARING SAID SUSPENSION BY MIXING SAID HYDROCARBON WITH AN AQUEOUS SOLUTION OF BORIC ACID AND THEN EVAPORATIONG ALL OF THE WATER FROM SAID MIXTURE TO LEAVE BEHIND A SUSPENSION OF SOLID BORIC ACID IN SAID HYDROCARBON.
Claim 2
Dependent Claim
104 words
IN A PROCESS FOR THE PREPARATION OF A CYCLIC ALCOHOL BY THE OXIDATION OF A SATURATED CYCLIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTANE, CYCLOHEXANE, CYCLOHEPTANE, CYCLOOCTANE AND CYCLODODECANE BY PREPARING A SUSPENSION OF BORIC ACID IN SAID HYDROCARBON AND THEN CONTACTING SAID SUSPENSION WITH MOLECULAR OXYGEN AT A TEMPERATURE OF 100 TO 300* C. FOLLOWED BY HYDROLYSIS OF THE RESULTING OXIDATION PRODUCT, THE IMPROVEMENT WHICH COMPRISES PREPARING SAID SUSPENSION BY MIXING SAID HYDROCARBON WITH AN AQUEOUS SOLUTION OF BORIC ACID AND THEN EVAPORATIONG ALL OF THE WATER FROM SAID MIXTURE TO LEAVE BEHIND A SUSPENSION OF SOLID BORIC ACID IN SAID HYDROCARBON.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |