US3134824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylene polymerization with supported nickel biscyclopentadienyl catalyst
Assignee: Phillips Petroleum Co
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Filing: 1961-06-15
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Granted: 1964-05-26
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Expires: 1981-06-15
Abstract
No abstract record available.
Inventors
- 👤 Darrell W Walker
- 👤 Edward L Czenkusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:26
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/1616; B01J31/22; B01J31/2282; B01J31/2295; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/32; C07C2/34; B01J21/00; B01J21/12; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2523/00; C07C2523/12; C07C2531/00; C07C2531/16; C07C2531/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
THE PROCESS OF POLYMERIZING ETHYLENE TO LIQUID POLYMER COMPRISING CONTACTING ETHYLENE UNDER POLYMERIZING CONDITIONS WITH A CATALYST FORMED BY DEPOSITING BISCYCLOPENTADIENYL NICKEL ON A SUPPORT SELECTED FROM THE GROUP CONSISTING OF SILICA, ALUMINA, TITANIA, ZIRCONIA, THORIA, BORIA, AND MIXTURES THEREOF, SO AS TO PRODUCE LIQUID POLYMER.
Claim 2
Dependent Claim
46 words
THE PROCESS OF POLYMERIZING ETHYLENE TO LIQUID POLYMER COMPRISING CONTACTING ETHYLENE UNDER POLYMERIZING CONDITIONS WITH A CATALYST FORMED BY DEPOSITING BISCYCLOPENTADIENYL NICKEL ON A SUPPORT SELECTED FROM THE GROUP CONSISTING OF SILICA, ALUMINA, TITANIA, ZIRCONIA, THORIA, BORIA, AND MIXTURES THEREOF, SO AS TO PRODUCE LIQUID POLYMER.
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |