US3558736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of 3-methyl pentenes from ethene
Assignee: Sentralinstitutt for Industriell Forskning
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Filing: 1967-08-16
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Granted: 1971-01-26
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Expires: 1987-08-16
Abstract
Abstract ETHYLENE IS CONVERTED TO 3-METHYLPENTENE USING A CATALYST SYSTEM COMPRISING A COMPOUND OF A METAL FROM GROUP 8 OF THE PERIODIC TABLE, A LEWIS ACID COMPOUND OF A METAL FROM GROUP 2 AND/OR 3 OF THE PERIODIC TABLE, AND A LEWIS BASE COMPOUND OF THE ELEMENTS OF GROUP 5 AND/OR 6 OF THE PERIODIC TABEL. THE REACTION PRODUCT CONSISTS ESSENTIALLY OF NORMAL BUTENE AND 3-METHYLPENTENE, 3-METHYLPENTENE IS RECOVERED, AND ALL OR PART OF THE NORMAL BUTENE IS RECYCLED TO THE REACTION ZONE. D R A W I N G
Inventors
- 👤 Normann Bergem
- 👤 Ulf Blindheim
- 👤 Olav-Torgeir Onsager
- 👤 Hagbarth Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:07
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C07C2/36; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/24; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |