US3755490A
Expired / Lapsed
US
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Olefin polymerization catalyzed by a supported black amorphous nickelcomplex
Assignee: Atlantic Richfield Co
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Filing: 1969-05-01
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Granted: 1973-08-28
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Expires: 1989-05-01
Abstract
Abstract A SOLID PHASE CATALYST COMPOSITION COMPRISING A COMPLEX OF NICKEL, A GROUP V-A ELECTRON DONOR LIGAND, AND A NON-PROTONIC LEWIS ACID AND REDUCING AGENT ON A SOLID, ACIDIC SILICA-BASED SUPPORT. EXEMPLARY IS A COMPLEX COMPRISING NICKEL ACETYLACETONATE, TRIALKYLPHOSPHINE, AND ETHYLALUMINUM SESQUICHLORIDE ON A SOLID, ACIDIC SILICA-BASED SUPPORT. USE OF THE CATALYST IN THE POLYMERIZATION OF OLEFIN HYDROCARBONS IS ALSO DISCLOSED.
Inventors
- 👤 Yoo J Sun
- 👤 H Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:28
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1845; B01J31/185; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/1616; B01J31/1895; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; B01J31/24; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/36; C08; C08F; C08F10/00; C08F110/00; B01J2231/00; B01J2231/20; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847; C07C2521/00; C07C2521/12; C07C2531/00; C07C2531/02; C07C2531/04; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22; C07C2531/24; C08F2410/00; C08F2410/04; Y; Y02; Y02P; Y02P20/00; Y02P20/50
Claims Analysis
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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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |