US3157627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic conversion and catalysts
Assignee: Standard Oil Co
•
Filing: 1956-03-28
•
Granted: 1964-11-17
•
Expires: 1976-03-28
Abstract
No abstract record available.
Inventors
- 👤 Herbert N Friedlander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:19
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A PROCESS FOR THE PREPARATION OF A NORMALLY SOLID POLYMER, WHICH COMPRISES CONTACTING A NORMALLY GASEOUS, UNBRANCHED 1-ALKENE CAPABLE OF UNDERGOING ADDITION POLYMERIZATION UNDER POLYMERIZATION REACTION CONDITIONS, INCLUDING A TEMPERATURE BETWEEN ABOUT 10*C. AND ABOUT 175*C. AND A PRESSURE BELOW 2000 P.S.I.A., WITH A POLYMERIZATION CATALYST PREPARED BY ADMIXING (A) AN ALKALI REAGENT SELECTED FROM THE CLASS CONSISTING OF: (1) ALKALI METAL (2) ALKALI METAL HYDRIDE (3) HYDROCARBON DERIVATIVE OF AN ALKALI METAL AND (4) MIXTURES OF SAID ALKALI REAGENTS, WITH (B) A POLYVALENT METAL SALT OF A METAL SELECTED FROM THE GROUPS 4A, 5A, 6A AND 8 OF THE MENDELEEFF PERIODIC TABLE, THE IMPROVEMENT OF EFFECTING SAID CONTACTING IN THE PRESENCE OF AN ORGANIC PEROXIDE IN A PROPORTION SUFFICIENT TO EFFECT SUBSTANTIAL PROMOTION OF THE ACTIVITY OF SAID POLYMERIZATION CATALYST OF FROM ABOUT 0.01 TO ABOUT 20 PERCENT BY WEIGHT OF SAID ALKALI REAGENT, AND RECOVERING A POLYMER THUS PRODUCED.
Claim 2
Dependent Claim
152 words
IN A PROCESS FOR THE PREPARATION OF A NORMALLY SOLID POLYMER, WHICH COMPRISES CONTACTING A NORMALLY GASEOUS, UNBRANCHED 1-ALKENE CAPABLE OF UNDERGOING ADDITION POLYMERIZATION UNDER POLYMERIZATION REACTION CONDITIONS, INCLUDING A TEMPERATURE BETWEEN ABOUT 10*C. AND ABOUT 175*C. AND A PRESSURE BELOW 2000 P.S.I.A., WITH A POLYMERIZATION CATALYST PREPARED BY ADMIXING (A) AN ALKALI REAGENT SELECTED FROM THE CLASS CONSISTING OF: (1) ALKALI METAL (2) ALKALI METAL HYDRIDE (3) HYDROCARBON DERIVATIVE OF AN ALKALI METAL AND (4) MIXTURES OF SAID ALKALI REAGENTS, WITH (B) A POLYVALENT METAL SALT OF A METAL SELECTED FROM THE GROUPS 4A, 5A, 6A AND 8 OF THE MENDELEEFF PERIODIC TABLE, THE IMPROVEMENT OF EFFECTING SAID CONTACTING IN THE PRESENCE OF AN ORGANIC PEROXIDE IN A PROPORTION SUFFICIENT TO EFFECT SUBSTANTIAL PROMOTION OF THE ACTIVITY OF SAID POLYMERIZATION CATALYST OF FROM ABOUT 0.01 TO ABOUT 20 PERCENT BY WEIGHT OF SAID ALKALI REAGENT, AND RECOVERING A POLYMER THUS PRODUCED.
References Cited (Backward Citations)
US2614101A
Cited
GB682420A
Cited
US2758107A
Cited
US2691647A
Cited
BE538782A
Cited
US2839518A
Cited
US3024227A
Cited
US2868772A
Cited
US2868771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |