US3278634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of 4-methylpentene-1
Assignee: Glanzstoff AG
•
Filing: 1963-07-19
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Granted: 1966-10-11
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Expires: 1983-07-19
Abstract
No abstract record available.
Inventors
- 👤 Magerlein Helmut
- 👤 Meyer Gerhard
- 👤 Rosener Wolfgans
- 👤 Siggel Erhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:34
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/24; B; B01; B01J; B01J21/00; B01J23/00; B01J23/02; B01J23/04; B01J31/00; B01J31/02; B01J31/12; B01J31/122; C07C2/26; C07C2/30; C07C2523/00; C07C2523/02; C07C2523/04; C07C2531/00; C07C2531/02; C07C2531/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METHOD FOR THE PRODUCTION OF 4-METHYLPHETENE-1 WHICH COMPRISES: DIMERIZING PROPYLENE AT A TEMPERATURE OF ABOUT 100*C. TO 180*C. AND A PRESSURE OF ABOUT 1 TO 1000 ATMOSPHERES IN AN INERT LIQUID HYDROCARBON DILUENT AND IN CONTACT WITH FINELY DISPERSED SOLID METALLIC LITHIUM OBTAINED BY THE REMETALLIZATION OF AN ORGANIC LITHIUM COMPOUND OF THE FORMULA LI-R WHEREIN R REPRESENTS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKLYL OF 2 TO 18 CARBON ATOMS, CYCLOALKYL AND ARYL WITH ANOTHER ALKALI METAL.
Claim 2
Independent Claim
81 words
A METHOD FOR THE PRODUCTION OF 4-METHYLPHETENE-1 WHICH COMPRISES: DIMERIZING PROPYLENE AT A TEMPERATURE OF ABOUT 100*C. TO 180*C. AND A PRESSURE OF ABOUT 1 TO 1000 ATMOSPHERES IN AN INERT LIQUID HYDROCARBON DILUENT AND IN CONTACT WITH FINELY DISPERSED SOLID METALLIC LITHIUM OBTAINED BY THE REMETALLIZATION OF AN ORGANIC LITHIUM COMPOUND OF THE FORMULA LI-R WHEREIN R REPRESENTS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKLYL OF 2 TO 18 CARBON ATOMS, CYCLOALKYL AND ARYL WITH ANOTHER ALKALI METAL.
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |