US2866831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic process for producing 1-methylcyclohexene
Assignee: Imperial Chemical Industries Ltd
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Filing: 1954-11-12
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Granted: 1958-12-30
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Expires: 1974-11-12
Abstract
No abstract record available.
Inventors
- 👤 Lambert Arthur
- 👤 Palfreeman Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:10
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/20; C07C1/24; C07C2521/00; C07C2521/16; C07C2601/00; C07C2601/12; C07C2601/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
PROCESS FOR THE MANUFACTURE OF A PRODUCT WHICH CONSISTS PRIMARILY OF 1-METHYLCYCLOHEXENE WHICH COMPRISES HEATING LIQUID 2-METHYLCYCLOHEXANOL AT A TEMPERATURE BETWEEN 120* AND 150*C., IN THE PRESENCE OF AN ACID-ACTIVATED BLEACHING EARTH AND MAINTAINING SAID 2-METHYLCYCLOHEXANOL IN THE LIQUID PHASE DURING SAID HEATING, SAID 2-METHYLCYCLOHEXANOL CONTAINING 35-40% BY WEIGHT OF CIS- AND 60-65% BY WEIGHT OF TRANS-2-METHYLCYCLOHEXANOL.
Claim 2
Dependent Claim
57 words
PROCESS FOR THE MANUFACTURE OF A PRODUCT WHICH CONSISTS PRIMARILY OF 1-METHYLCYCLOHEXENE WHICH COMPRISES HEATING LIQUID 2-METHYLCYCLOHEXANOL AT A TEMPERATURE BETWEEN 120* AND 150*C., IN THE PRESENCE OF AN ACID-ACTIVATED BLEACHING EARTH AND MAINTAINING SAID 2-METHYLCYCLOHEXANOL IN THE LIQUID PHASE DURING SAID HEATING, SAID 2-METHYLCYCLOHEXANOL CONTAINING 35-40% BY WEIGHT OF CIS- AND 60-65% BY WEIGHT OF TRANS-2-METHYLCYCLOHEXANOL.
References Cited (Backward Citations)
DE451535C
Cited
US2186370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |