US2904608A
Expired / Lapsed
US
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Nickel oxide catalysts and their use in polymerizing olefins
Assignee: Phillips Petroleum Co
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Filing: 1956-04-26
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Granted: 1959-09-15
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Expires: 1976-04-26
Abstract
No abstract record available.
Inventors
- 👤 Vernon C F Holm
- 👤 Grant C Bailey
- 👤 Clark Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:15
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/10; B; B01; B01J; B01J23/00; B01J23/70; B01J37/00; B01J37/02; B01J37/0201; C07C2521/00; C07C2521/12; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/755; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
68 words
PROCESS FOR PREPARING A SUPPORTED NICKEL OXIDE POLYMERIZATION CATALYST COMPRISING IMPREGNATING A SUITABLE POROUS SUPPORT WITH AN AMMONIACAL AQUEOUS SOLUTION OF A NICKEL SALT CONVERTIBLE TO THE OXIDE UPON HEAT ING IN A FREE/OXYGEN-CONTAINING AMBIENT; DRYING THE IMPREGNATED SUPPORT; AND, AS THE FINAL STEP IN THE PROCESS HEATED THE DRIED COMPOSITE IN A FREE-OXYGEN-CONTAINING AMBIENT SO AS TO CONVERT THE NICKEL SALT TO NICKEL OXIDE IN THE COMPOSITE.
Claim 2
Dependent Claim
68 words
PROCESS FOR PREPARING A SUPPORTED NICKEL OXIDE POLYMERIZATION CATALYST COMPRISING IMPREGNATING A SUITABLE POROUS SUPPORT WITH AN AMMONIACAL AQUEOUS SOLUTION OF A NICKEL SALT CONVERTIBLE TO THE OXIDE UPON HEAT ING IN A FREE/OXYGEN-CONTAINING AMBIENT; DRYING THE IMPREGNATED SUPPORT; AND, AS THE FINAL STEP IN THE PROCESS HEATED THE DRIED COMPOSITE IN A FREE-OXYGEN-CONTAINING AMBIENT SO AS TO CONVERT THE NICKEL SALT TO NICKEL OXIDE IN THE COMPOSITE.
Claim 3
Dependent Claim
28 words
A PROCESS FOR POLYMERIZING A POLYMERIZABLE OLEFIN WHICH COMPRISES CONTACTING SAID OLEFIN UNDER POLYMERIZING CONDITIONS WITH A SUPPORTED NICKEL OXIDE CATALYST MADE BY THE PROCESS OF CLAIM 1.
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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |