US3135724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three component catalyst for polymerizing olefin containing a mixture of alkyl aluminum dihalide, titanium trichloride and an alkali metal amide
Assignee: FMC Corp
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Filing: 1961-03-10
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Granted: 1964-06-02
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
- 👤 John A Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:53
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
IN THE POLYMERIZATION OF 1-ALKENES HAVING FROM 3 TO 8 CARBON ATOMS TO FORM SOLID CRYSTALLINE POLYMERS, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A MIXTURE CONSISTING ESSENTIALLY OF AN ALKY ALUMINUM DIHALIDE, TITANIUM TRICHLORIDE, AND AN ALKALI METAL AMIDE MNH2 WHEREIN M IS AN ALKALI METAL.
Claim 2
Dependent Claim
48 words
IN THE POLYMERIZATION OF 1-ALKENES HAVING FROM 3 TO 8 CARBON ATOMS TO FORM SOLID CRYSTALLINE POLYMERS, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A MIXTURE CONSISTING ESSENTIALLY OF AN ALKY ALUMINUM DIHALIDE, TITANIUM TRICHLORIDE, AND AN ALKALI METAL AMIDE MNH2 WHEREIN M IS AN 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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |