US3283020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of perfluoroethyliodide
Assignee: EIDP Inc
•
Filing: 1962-12-20
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Granted: 1966-11-01
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Expires: 1982-12-20
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:40
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/20; C07C17/202; C07C17/208; C07C17/013; C07C17/04; C07C17/26; C07C17/272; C07C17/278
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS FOR THE PROCDUCTION OF PERFLUOROETHYL IODIDE COMPRISING REACTING IN A CLOSED REACTION ZONE, AT 0*-120*C., 1,2-DIIODOTERTAFLUOROETHANE, IODINE PENTAFLUORIDE, AND TETRAFLUOROETHYLENE IN THE PRESENCE OF A SMALL AMOUNT OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF (1) ANTIMONY PENTAFLURORIDE, AND (2) A COMBINATION OF ANTIMONY TRIFLUORIDE AND IODINE, SAID ANTIMONY COMPOUNDS BEING PRESENT IN AN AMOUNT OF AT LEAST 0.01 MOL PER MOL OF 1,2-DIIODOTERAFLUOROETHANE, AND THE AMOUNT OF IODINE BEING ABOUT 0.02-0.2 MOL PER MOL OF 1,2-DIIODOTERAFLUROETHANE.
Claim 2
Dependent Claim
80 words
A PROCESS FOR THE PROCDUCTION OF PERFLUOROETHYL IODIDE COMPRISING REACTING IN A CLOSED REACTION ZONE, AT 0*-120*C., 1,2-DIIODOTERTAFLUOROETHANE, IODINE PENTAFLUORIDE, AND TETRAFLUOROETHYLENE IN THE PRESENCE OF A SMALL AMOUNT OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF (1) ANTIMONY PENTAFLURORIDE, AND (2) A COMBINATION OF ANTIMONY TRIFLUORIDE AND IODINE, SAID ANTIMONY COMPOUNDS BEING PRESENT IN AN AMOUNT OF AT LEAST 0.01 MOL PER MOL OF 1,2-DIIODOTERAFLUOROETHANE, AND THE AMOUNT OF IODINE BEING ABOUT 0.02-0.2 MOL PER MOL OF 1,2-DIIODOTERAFLUROETHANE.
References Cited (Backward Citations)
US3006973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |