US2862036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of 2,2,3-trichloroheptafluorobutane
Assignee: Hooker Chemical Corp
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Filing: 1956-08-13
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Granted: 1958-11-25
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Expires: 1976-08-13
Abstract
No abstract record available.
Inventors
- 👤 Charles F Baranauckas
- 👤 William E Ashton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:50
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/20; C07C17/202; C07C17/208; C07C17/013; C07C17/04; C07C17/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A PROCESS FOR MAKING 2,2,3-TRICHLOROHEPTAFLUOROBU TANE WHICH INCLUDES: HEATING A PERHALOCARBON SELECTED FROM THE GROUP CONSISTING OF HEXACHLOROBUTADIENE; 2,3DICHLOROHEXAFLUOROBUTENE-2; 1,2,3-TETRACHLOROTETRAFLUOROBUTENE-2; 1,1,2,3-TETRACHLOROTETRAFLUOROBUTENE-2; 1,1,1,2,3PENTACHLOROTRIFLUOROBUTENE-2; 1,1,2,3,4,4-HEXACHLORODIFLUOROBUTENE-2, AND 1,1,1,2,3,4,4-OCTACHLOROBUTENE-2, WITH A FLUORINATING AGENT CONTAINING AN ANTIMONY HALIDE, HYDROGEN FLUORIDE AND ELEMENTAL CHLORINE WHILE MAINTAINING THE REACTION TEMPERATURE BETWEEN ABOUT 200 DEGREES AND 300 DEGREES CENTIGRADE FOR A CONTACT TIME OF LESS THAN TEN HOURS.
Claim 2
Dependent Claim
60 words
A PROCESS FOR MAKING 2,2,3-TRICHLOROHEPTAFLUOROBU TANE WHICH INCLUDES: HEATING A PERHALOCARBON SELECTED FROM THE GROUP CONSISTING OF HEXACHLOROBUTADIENE; 2,3DICHLOROHEXAFLUOROBUTENE-2; 1,2,3-TETRACHLOROTETRAFLUOROBUTENE-2; 1,1,2,3-TETRACHLOROTETRAFLUOROBUTENE-2; 1,1,1,2,3PENTACHLOROTRIFLUOROBUTENE-2; 1,1,2,3,4,4-HEXACHLORODIFLUOROBUTENE-2, AND 1,1,1,2,3,4,4-OCTACHLOROBUTENE-2, WITH A FLUORINATING AGENT CONTAINING AN ANTIMONY HALIDE, HYDROGEN FLUORIDE AND ELEMENTAL CHLORINE WHILE MAINTAINING THE REACTION TEMPERATURE BETWEEN ABOUT 200 DEGREES AND 300 DEGREES CENTIGRADE FOR A CONTACT TIME OF LESS THAN TEN HOURS.
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) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |