US2705706A
Expired / Lapsed
US
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Polymerization of perhalocarbons with trifluorodichloropropionyl peroxide
Assignee: MW Kellogg Co
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Filing: 1951-05-11
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Granted: 1955-04-05
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Expires: 1971-05-11
Abstract
No abstract record available.
Inventors
- 👤 Albert L Dittman
- 👤 John M Wrightson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:53
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/25; C07C17/26; C07C17/263; C07C45/00; C07C45/61; C07C45/63; C08; C08F; C08F14/00; C08F14/18; C08F14/22; C08F14/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A PROCESS FOR PREPARING A PLASTIC TRIFLUOROCHLOROETHYLENE POLYMER WHICH COMPRISES: POLYMERIZING TRIFLUOROCHLOROETHYLENE AT A TEMPERATURE BETWEEN ABOUT -20*C. AND ABOUT 25*C., IN THE PRESENCE OF TRIFLUORODICHLOROPROPIONYL PEROXIDE AS A PROMOTER, FOR A TIME SUFFICIENT TO PRODUCE A PLASTIC POLYMER OF TRIFLUOROCHLOROETHYLENE; AND MAINTAINING THE CONCENTRATION OF THE PROMOTER BETWEEN ABOUT 0.01 AND ABOUT 0.5 PER CENT OF TRIFLUOROCHLOROETHYLENE IN THE REACTION MIXTURE.
Claim 2
Dependent Claim
62 words
A PROCESS FOR PREPARING A PLASTIC TRIFLUOROCHLOROETHYLENE POLYMER WHICH COMPRISES: POLYMERIZING TRIFLUOROCHLOROETHYLENE AT A TEMPERATURE BETWEEN ABOUT -20*C. AND ABOUT 25*C., IN THE PRESENCE OF TRIFLUORODICHLOROPROPIONYL PEROXIDE AS A PROMOTER, FOR A TIME SUFFICIENT TO PRODUCE A PLASTIC POLYMER OF TRIFLUOROCHLOROETHYLENE; AND MAINTAINING THE CONCENTRATION OF THE PROMOTER BETWEEN ABOUT 0.01 AND ABOUT 0.5 PER CENT OF TRIFLUOROCHLOROETHYLENE IN THE REACTION MIXTURE.
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) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |