Patent US2916478A successfully refreshed from Google Patents.
US2916478A
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US
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Polymerization process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-07-09
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Granted: 1959-12-08
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Expires: 1976-07-09
Abstract
No abstract record available.
Inventors
- 👤 Allen R Kittleson
- 👤 Robert M Thomas
- 👤 Jr Alexis Voorhies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:37
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/907
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
THE PROCESS OF MAKING HIGH MOLECULAR WEIGHT POLYMERS FROM UNSATURATED HYDROCARBON COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ALKENES OF 2 TO 10 CARBON ATOMS, BUTADIENE AND ISOPRENE WHICH COMPRISES DISSOLVING A TITANIUM CHLORIDE IN A MEDIUM CONSISTING ESSENTIALLY OF CHLOROBENZENE, ALSO DISSOLVING AN ALUMINUM ALKYL COMPOUND REDUCING AGENT IN A MEDIUM CONSISTING ESSENTIALLY OF CHLOROBENZENE, MIXING SAID TWO RESULTING SOLUTIONS TO MAKE A CATALYST COMPLEX DISPERSION IN CHLOROBENZENE, FEEDING SAID CATALYST DISPERSION INTO A POLYMERIZATION REACTOR CONTAINING A SUBSTANTIALLY LARGER VOLUME OF REACTION DILUENT CONSISTING ESSENTIALLY OF AN INERT SUBSTANTIALLY ALIPHATIC HYDROCARBON LIQUID, AND THEN FEEDING THE UNSATURATED COMPOUND TO BE POLYMERIZED INTO THE REACTION LIQUID WITH AGITATION, WHEREBY A MINIMUM CATALYST EFFICIENCY OF 175 G./G. IS OBTAINED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |