US3052660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of olefins with catalysts of metal alkyls and cyclopentadienyl vanadium oxydihalides
Assignee: Hercules Powder Co
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Filing: 1960-04-27
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Granted: 1962-09-04
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Expires: 1980-04-27
Abstract
No abstract record available.
Inventors
- 👤 Osgan Maseh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:46
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS OF POLYMERIZING A-OLEFINS WHICH COMPRISES CONTACTING AN A-OLEFIN WITH A CATALYST FORMED BY MIXING A CYCLOPENTADIENYL VANADIUM OXYDIHAALIDE WHEREIN THE CYCLOPENTADIENYL MOIETY IS SELECTED FROM THE GROUP CONSISTING OF CYCOPTADIENYL AND ALKYL CYCLOPENTADIENYL RADICALS WITH AN ALKYL METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE METAL ALKYLS AND METAL ALKYL HALIDES OF THE METALS OF GROUPS 1-A, 11-A AND 111-A OF THE PERIODIC TABLE IN A MOLAR RATIO OF ALKYL METAL COMPOUND TO SAID VANADIUM COMPOUND OF FROM ABOUT 0.5:1 TO ABOUT 100:1.
Claim 2
Dependent Claim
86 words
A PROCESS OF POLYMERIZING A-OLEFINS WHICH COMPRISES CONTACTING AN A-OLEFIN WITH A CATALYST FORMED BY MIXING A CYCLOPENTADIENYL VANADIUM OXYDIHAALIDE WHEREIN THE CYCLOPENTADIENYL MOIETY IS SELECTED FROM THE GROUP CONSISTING OF CYCOPTADIENYL AND ALKYL CYCLOPENTADIENYL RADICALS WITH AN ALKYL METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE METAL ALKYLS AND METAL ALKYL HALIDES OF THE METALS OF GROUPS 1-A, 11-A AND 111-A OF THE PERIODIC TABLE IN A MOLAR RATIO OF ALKYL METAL COMPOUND TO SAID VANADIUM COMPOUND OF FROM ABOUT 0.5:1 TO ABOUT 100:1.
References Cited (Backward Citations)
US2924594A
Cited
US2917501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |