US2898326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of olefins with a catalyst comprising a hydride of boron and an oxide of a metal of group 6a
Assignee: Standard Oil Co
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Filing: 1955-05-02
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Granted: 1959-08-04
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Expires: 1975-05-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin F Peters
- 👤 Bernard L Evering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A PROCESS FOR THE PRODUCTION OF A NORMALLY SOLID HYDROCARBON MATERIAL, THE STEPS WHICH COMPRISE EFFECTING INITIAL CONTACTING OF A NORMALLY GASEOUS OLEFIN WITH A HYDRIDE OF BORON, CONSISTING OF HYDROGEN AND BORON IN CHEMICAL COMBINATION, AND WITH AN OXIDE OF A METAL OF GROUP 6A OF THE MENDELEEF PERIODIC TABLE, THE CONCENTRATIONS OF SAID HYDRIDE AND OXIDE BEING EACH AT LEAST 0.001% BY WEIGHT BASED ON SAID OLEFIN, EFFECTING INITIAL CONTACTING AT A LOW TEMPERATURE AT WHICH SUBSTANTIAL POLYMERIZATION OF SAID NORMALLY GASEOUS OLEFIN DOES NOT OCCUR, THEREAFTER SUBJECTING THE RESULTANT MIXTURE TO POLYMERIZATION CONDITIONS INCLUDING A SUITABLE TEMPERATURE BETWEEN ABOUT O* C. AND ABOUT 200*C. AND A SUITABLE PRESSURE, AND SEPARATING A NORMALLY SOLID HYDROCARBON MATERIAL THUS PRODUCTED.
Claim 2
Dependent Claim
121 words
IN A PROCESS FOR THE PRODUCTION OF A NORMALLY SOLID HYDROCARBON MATERIAL, THE STEPS WHICH COMPRISE EFFECTING INITIAL CONTACTING OF A NORMALLY GASEOUS OLEFIN WITH A HYDRIDE OF BORON, CONSISTING OF HYDROGEN AND BORON IN CHEMICAL COMBINATION, AND WITH AN OXIDE OF A METAL OF GROUP 6A OF THE MENDELEEF PERIODIC TABLE, THE CONCENTRATIONS OF SAID HYDRIDE AND OXIDE BEING EACH AT LEAST 0.001% BY WEIGHT BASED ON SAID OLEFIN, EFFECTING INITIAL CONTACTING AT A LOW TEMPERATURE AT WHICH SUBSTANTIAL POLYMERIZATION OF SAID NORMALLY GASEOUS OLEFIN DOES NOT OCCUR, THEREAFTER SUBJECTING THE RESULTANT MIXTURE TO POLYMERIZATION CONDITIONS INCLUDING A SUITABLE TEMPERATURE BETWEEN ABOUT O* C. AND ABOUT 200*C. AND A SUITABLE PRESSURE, AND SEPARATING A NORMALLY SOLID HYDROCARBON MATERIAL THUS PRODUCTED.
References Cited (Backward Citations)
US2685475A
Cited
US2728758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |