US3154595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin polymerization catalyzed by aminated alkali metal
Assignee: Universal Oil Products Co
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Filing: 1960-09-29
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Granted: 1964-10-27
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Expires: 1980-09-29
Abstract
No abstract record available.
Inventors
- 👤 George R Donaldson
- 👤 Ernest L Pollitzer
- 👤 Richard S Corey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:31
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/24; B; B01; B01J; B01J21/00; B01J21/02; B01J27/00; B01J27/24; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/02; C07C2523/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN THE POLYMERIZATION OF AN OLEFINIC HYDROCARBON IS CONTACT WITH A CATALYST COMPOSITE OF AN AMINATED ALKALI METAL AND A SUBSTANTIALLY ANHYDROUS, HIGH SURFACE AREA SUPPORT CONTAINING AMMONIA AS A RESULT OF ITS METHOD OF PREPARATION, THE IMPROVEMENT WHICH COMPRISES FLUSHING SAID COMPOSITE, PRIOR TO CONTACTING SAID HYDROCARBON THEREWITH, WITH A LIQUID ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF PARAFFINIC AND AROMATIC HYDROCARBONS AT A TEMPERATURE AND FOR A TIME SUFFICIENT TO REMOVE ALL OF THE FREE AND EXCESS AMONIA FROM THE COMPOSITE.
Claim 2
Dependent Claim
84 words
IN THE POLYMERIZATION OF AN OLEFINIC HYDROCARBON IS CONTACT WITH A CATALYST COMPOSITE OF AN AMINATED ALKALI METAL AND A SUBSTANTIALLY ANHYDROUS, HIGH SURFACE AREA SUPPORT CONTAINING AMMONIA AS A RESULT OF ITS METHOD OF PREPARATION, THE IMPROVEMENT WHICH COMPRISES FLUSHING SAID COMPOSITE, PRIOR TO CONTACTING SAID HYDROCARBON THEREWITH, WITH A LIQUID ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF PARAFFINIC AND AROMATIC HYDROCARBONS AT A TEMPERATURE AND FOR A TIME SUFFICIENT TO REMOVE ALL OF THE FREE AND EXCESS AMONIA FROM THE COMPOSITE.
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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |