US2766299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing liquid polymerization products from fluorochloroalkenes and haloalkanes
Assignee: Hoechst AG
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Filing: 1952-05-07
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Granted: 1956-10-09
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Expires: 1972-05-07
Abstract
No abstract record available.
Inventors
- 👤 Schaff Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:18
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/18; C10; C10M; C10M2211/00; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/04; C10M2213/06; C10M2213/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
THE PROCESS FOR POLYMERIZING UNSATURATED ETHYLENES CONTAINING BOTH FLUORINE AND CHLORINE, WHICH COMPRISES SUBJECTING TO A TEMPERATURE BETWEEN ABOUT 150* C. AND ABOUT 450* C. A GASEOUS MIXTURE CONSISTING OF SAID UNSATURATED ETHYLENES AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE, IODINE AND UNSTABLE HALOGEN SUBSTITUTED HYDROCARBON WHICH DECOMPOSES TO FORM FREE RADICALS AT THE PREVAILING TEMPERATURE.
Claim 2
Dependent Claim
60 words
THE PROCESS FOR POLYMERIZING UNSATURATED ETHYLENES CONTAINING BOTH FLUORINE AND CHLORINE, WHICH COMPRISES SUBJECTING TO A TEMPERATURE BETWEEN ABOUT 150* C. AND ABOUT 450* C. A GASEOUS MIXTURE CONSISTING OF SAID UNSATURATED ETHYLENES AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE, IODINE AND UNSTABLE HALOGEN SUBSTITUTED HYDROCARBON WHICH DECOMPOSES TO FORM FREE RADICALS AT THE PREVAILING TEMPERATURE.
References Cited (Backward Citations)
FR926601A
Cited
US2566163A
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US2636907A
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US2602824A
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US2606937A
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US2614131A
Cited
US2694701A
Cited
US2582283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |