US3563967A
Expired / Lapsed
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Process for polymerizing a mixture of bisecondary aliphatic mono-olefins and primary-secondary mono-olefins
Assignee: IFP Energies nouvelles
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Filing: 1967-09-13
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Granted: 1971-02-16
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Expires: 1987-09-13
Abstract
Abstract A PROCESS FOR POLYMERIZING A MIXTURE OF BI-SECONDARY AND PRIMARY SECONDARY OLEFINS. THE MIXTURE IS FIRST REACTED IN THE PRESENCE OF A CATALYTIC COMPRISING ONE METAL COMPOUND FROM GROUPS IVA AND VA AND A GROUP IA, II, IIIB, AND IVB METAL, HYDRIDE, OR ORGANOMETALLIC COMPOUND. THEN ADDING A METAL COMPOUND FROM GROUP VI OR VIII TO THE MIXTURE AND CONTINUING THE POLYMERIZATION.
Inventors
- 👤 Yves Chauvin
- 👤 Gilles Lefebvre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:59
CPC Classifications
C; C08; C08F; C08F10/00; C08F10/14; C08F210/00
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |