US3560146A
Expired / Lapsed
US
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Process for improving the stereo-specificity of catalytic components comprising ticl3
Assignee: Montedison SpA
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Filing: 1967-08-04
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Granted: 1971-02-02
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Expires: 1987-08-04
Abstract
Abstract PROCESS FOR IMPROVING STEROSPECIFICITY OF TICL3 CONTAINING CATALYST WHEREIN TICL3 COMPOSITION IS OBTAINED BY REDUCING TICL4 WITH AL OR H2 AND THEREAFTER ACTIVATING BY VIGOROUS MILLING AT AMBIENT TEMPERATURE FOR FROM ABOUT 4 TO 24 HOURS, THIS PROCESS COMPRISING THEREAFTER INTIMATELY ADMIXING TICL3 COMPOSITION WITH FROM ABOUT 1-12% BY WEIGHT THEREOF OF A HALOGENATED OR NON-HALOGENATED AROMATIC HYDROCARBON AT BELOW 60*C. FOR BETWEEN ABOUT 30 MINUTES AND 4 HOURS.
Inventors
- 👤 Luciano Luciani
- 👤 Gianfranco Corsi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:47
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; C; C01; C01G; C01G23/00; C01G23/02; C08; C08F; C08F110/00; Y; Y10; Y10S; Y10S526/00; Y10S526/906
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |