US3016409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of 1-alkyl-1-cyclohexenes
Assignee: Universal Oil Products Co
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Filing: 1959-04-27
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Granted: 1962-01-09
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Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 Jerome A Vesely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:26
CPC Classifications
C; C07; C07C; C07C13/00; C07C13/02; C07C13/16; C07C13/20; C07C1/00; C07C1/20; C07C1/24; C07C5/00; C07C5/22; C07C5/27; C07C5/2729; C07C5/2732; C07C5/2754; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2521/18; C07C2523/00; C07C2523/02; C07C2523/04; C07C2601/00; C07C2601/12; C07C2601/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS FOR THE PREPARATION OF 1-METHYL-1-CYCLOHEXENE WHICH COMPRISES HYDROGENATINGY A MIXTURE OF ISOMERIC CRESOLS IN THE PRESENCE OF HYDROGEN AND A NICKEL KIESELGUHR CATALYST AT HYDROGENATION CONDITIONS, DEHYDRATING THE RESULTANT ISOMERIC METHYLCYCLOHEXANOLS IN THE PRESENCE OF ALUMINA, ISOMERIZING THE RESULTANT ISOMERIC METHYLCYCLOHEXENES IN THE PRESENCE OF A CATALYST COMPRISING SODIUM COMPOSITED ON A PRECALCINED HIGH SURFACE AREA SILICA COMPOSITED ON A PRECALCINED HIGH SURFACE ABOUT 25* TO ABOUT 75* C. TO FORM THE DESIRED 1-METHYL-1CYCLOHEXENE, AND RECOVERING SAID 1-METHYL-1-CYCLOHEXENE.
Claim 2
Dependent Claim
80 words
A PROCESS FOR THE PREPARATION OF 1-METHYL-1-CYCLOHEXENE WHICH COMPRISES HYDROGENATINGY A MIXTURE OF ISOMERIC CRESOLS IN THE PRESENCE OF HYDROGEN AND A NICKEL KIESELGUHR CATALYST AT HYDROGENATION CONDITIONS, DEHYDRATING THE RESULTANT ISOMERIC METHYLCYCLOHEXANOLS IN THE PRESENCE OF ALUMINA, ISOMERIZING THE RESULTANT ISOMERIC METHYLCYCLOHEXENES IN THE PRESENCE OF A CATALYST COMPRISING SODIUM COMPOSITED ON A PRECALCINED HIGH SURFACE AREA SILICA COMPOSITED ON A PRECALCINED HIGH SURFACE ABOUT 25* TO ABOUT 75* C. TO FORM THE DESIRED 1-METHYL-1CYCLOHEXENE, AND RECOVERING SAID 1-METHYL-1-CYCLOHEXENE.
References Cited (Backward Citations)
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Cited
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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) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |