US2626291A
Expired / Lapsed
US
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Solid phosphoric acid slurry polymerization process
Assignee: Standard Oil Development Co
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Filing: 1950-10-19
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Granted: 1953-01-20
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Expires: 1970-10-19
Abstract
No abstract record available.
Inventors
- 👤 Livingston Raymond
- 👤 John D Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:33
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/18; C07C2521/00; C07C2521/06; C07C2521/08; C07C2527/00; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN THE NON-REGENERATIVE CATALYTIC PROCESS OF POLYMERIZING OLEFINS IN WHICH AN OLEFIN FEED IS CONTINUOUSLY INTRODUCED INTO A REACTION ZONE CONTAINING A COSUSPENSION OF FINELY DIVIDED SOLID PHOSPHORIC ACID CATALYST AND FINELY DIVIDED SOLID DILUENT IN FLUID HYDROCARBON UNDER POLYMERIZATION CONDITIONS AND SUBSTANTIALLY SOLID-FREE EFFLUENT CONTAINING POLYMERIZED OLEFINS IS CONTINUOUSLY WITHDRAWN FROM SAID ZONE WHILE SAID CATALYST AND DILUENT ARE MAINTAINED IN SAID SUSPENSION WITHIN SAID ZONE, SAID CATALYST CONTAINING IN THE RANGE OF 50 TO 90% BY WEIGHT OF PHOSPHORIC ACID AND SAID DILUENT BEING USED IN AN AMOUNT SUFFICIENT TO PREVENT SUBSTANTIAL CATALYST AGGLOMERATION AND
Claim 2
Dependent Claim
97 words
IN THE NON-REGENERATIVE CATALYTIC PROCESS OF POLYMERIZING OLEFINS IN WHICH AN OLEFIN FEED IS CONTINUOUSLY INTRODUCED INTO A REACTION ZONE CONTAINING A COSUSPENSION OF FINELY DIVIDED SOLID PHOSPHORIC ACID CATALYST AND FINELY DIVIDED SOLID DILUENT IN FLUID HYDROCARBON UNDER POLYMERIZATION CONDITIONS AND SUBSTANTIALLY SOLID-FREE EFFLUENT CONTAINING POLYMERIZED OLEFINS IS CONTINUOUSLY WITHDRAWN FROM SAID ZONE WHILE SAID CATALYST AND DILUENT ARE MAINTAINED IN SAID SUSPENSION WITHIN SAID ZONE, SAID CATALYST CONTAINING IN THE RANGE OF 50 TO 90% BY WEIGHT OF PHOSPHORIC ACID AND SAID DILUENT BEING USED IN AN AMOUNT SUFFICIENT TO PREVENT SUBSTANTIAL CATALYST AGGLOMERATION AND
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) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |