Patent US3713737A successfully refreshed from Google Patents.
Patent US2734047A successfully refreshed from Google Patents.
US2734047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin polymerization with sbss catalyst
Assignee: —
•
Filing: —
•
Granted: 1956-02-07
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Expires: 1973-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:55
CPC Classifications
C; C08; C08F; C08F10/00; C08F210/00; C08F210/04; C08F210/08; C08F210/10; C08F210/12; Y; Y10; Y10S; Y10S260/00; Y10S260/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
THE PROCESS OF PREPARING A SOLID, PLASTIC HYDROCARBON INTERPOLYMER WHICH IS REACTIVE WITH VULCANIZATION AGENTS WHICH COMPRISES REACTING TOGETHER A MIXTURE OF ISOBUTYLENE AND A CONJUGATED DIOLEFIN HAVING FROM 4 TO 6 CARBON ATOMS PER MOLECULE IN THE PRESENCE OF AN INERT, NON-COMPLEXING SOLVENT BY THE APPLICATION THERETO OF A CATALYST SOLUTION CONSISTING OF SBF5 DISSOLVED IN AN INERT, NON-COMPLEXING SOLVENT, SAID POLYMERIZATION BEING CONDUCTED AT A TEMPERATURE OF FROM 0* TO -165* C.
Claim 2
Dependent Claim
74 words
THE PROCESS OF PREPARING A SOLID, PLASTIC HYDROCARBON INTERPOLYMER WHICH IS REACTIVE WITH VULCANIZATION AGENTS WHICH COMPRISES REACTING TOGETHER A MIXTURE OF ISOBUTYLENE AND A CONJUGATED DIOLEFIN HAVING FROM 4 TO 6 CARBON ATOMS PER MOLECULE IN THE PRESENCE OF AN INERT, NON-COMPLEXING SOLVENT BY THE APPLICATION THERETO OF A CATALYST SOLUTION CONSISTING OF SBF5 DISSOLVED IN AN INERT, NON-COMPLEXING SOLVENT, SAID POLYMERIZATION BEING CONDUCTED AT A TEMPERATURE OF FROM 0* TO -165* C.
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) | 1959-02-06 | 1959-08-08 | 1960-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-06 | 1963-08-08 | 1964-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-06 | 1967-08-08 | 1968-02-07 | $7700.00 | Window Closed / Lapsed |