US3349064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization and copolymerization of ethylene using halogen-containing promoters
Assignee: Hercules LLC
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Filing: 1963-09-11
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Granted: 1967-10-24
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Expires: 1983-09-11
Abstract
No abstract record available.
Inventors
- 👤 Gumboldt Albert
- 👤 Junghanns Ernst
- 👤 Schleitzer Gerhard
- 👤 Stemmer Hans Dieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:56
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/16; C08F210/18; C08F10/00; C08F10/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN THE POLYMERIZATION OR ETHYLENE WHEREIN ETHYLENE IS POLYMERIZED IN AN INERT ORGANIC DILUENT IN THE PRESENCE OF A CATALYST PREPARED BY REACTING A VANADIUM COMPOUND SOLUBLE IN THE ORGANIC DILUENT WITH AN ORGANOALUMINUM COMPOUND, THE IMPROVEMENT WHICH COMPRISES CONDUCTING THE POLYMERIZATION IN THE PRESENCE, AS A CATALYST PROMOTER, OF A PROMOTING AMOUNT OF AN UNSATURATED CARBOCYCLIC COMPOUND CONTAINING AT LEAST 4 HALOGEN ATOMS, AT LEAST 2 OF WHICH HALOGENATED ATOMS ARE ATTACHED TO DOUBLY BOUND CARBON ATOMS AND AT LEAST 1 OF WHICH IS ATTACHED TO A SINGLY BOUND CARBON ATOM ALPHA TO THE DOUBLE BOUND, THE CARBOXYCLIC NUCLEUS OF SAID CARBOCYCLIC COMPOUND BEING SELECTED FROMTHE GROUP CONSISTING OF CYCLOPENTADIENE, CYCLOPENTENE, BICYCLO(2,2,1)-HEPTADIENE-2,5, CYCLOPENTENE-2-ONE, CYCLOPENTENE-3-ONE, AND CYCLOPENTENE-2,4-DIONE.
Claim 2
Dependent Claim
117 words
IN THE POLYMERIZATION OR ETHYLENE WHEREIN ETHYLENE IS POLYMERIZED IN AN INERT ORGANIC DILUENT IN THE PRESENCE OF A CATALYST PREPARED BY REACTING A VANADIUM COMPOUND SOLUBLE IN THE ORGANIC DILUENT WITH AN ORGANOALUMINUM COMPOUND, THE IMPROVEMENT WHICH COMPRISES CONDUCTING THE POLYMERIZATION IN THE PRESENCE, AS A CATALYST PROMOTER, OF A PROMOTING AMOUNT OF AN UNSATURATED CARBOCYCLIC COMPOUND CONTAINING AT LEAST 4 HALOGEN ATOMS, AT LEAST 2 OF WHICH HALOGENATED ATOMS ARE ATTACHED TO DOUBLY BOUND CARBON ATOMS AND AT LEAST 1 OF WHICH IS ATTACHED TO A SINGLY BOUND CARBON ATOM ALPHA TO THE DOUBLE BOUND, THE CARBOXYCLIC NUCLEUS OF SAID CARBOCYCLIC COMPOUND BEING SELECTED FROMTHE GROUP CONSISTING OF CYCLOPENTADIENE, CYCLOPENTENE, BICYCLO(2,2,1)-HEPTADIENE-2,5, CYCLOPENTENE-2-ONE, CYCLOPENTENE-3-ONE, AND CYCLOPENTENE-2,4-DIONE.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |