US3594443A
Expired / Lapsed
US
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Process for preparing low molecular weight alpha-olefins
Assignee: Monsanto Co
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Filing: 1969-05-02
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Granted: 1971-07-20
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Expires: 1989-05-02
Abstract
Abstract PROCESS FOR PREPARING LOW MOLECULAR WEIGHT A-OLEFINS HAVING 4 TO 50 CARBON ATOMS BY REACTING ETHYLENE IN PRESENCE OF A SOLUTION IN AN AROMATIC SOLVENT RALCL2 AND (RO)3TICL WHERE R IS A 1 TO 4 CARBON ALKYL, THE AL TO TI MOLAR RATIO IS IN THE RANGE OF 2:1 TO 10:1, AT A TEMPERATURE IN THE RANGE OF 0 TO -50*C., PREFERABLY -10 TO -50*C., AT A PRESSURE IN THE RANGE OF 1 TO 20 KG./CM.2 AND PREFERABLY AT A TITANIUM COMPOUND CONCENTRATION OF 1X10**-3 TO 50X10**-3 MOL/LITER OF SOLVENT.
Inventors
- 👤 Gisela Henrici Henrici
- 👤 Salvador Olive Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:27
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C08; C08F; C08F110/00; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14
Claims Analysis
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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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |