US3927129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for insertion of hexafluoropropene at the aliphatic carbon-hydrogen bond of a functionally substituted hydrocarbon
Assignee: Arkema Inc
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Filing: 1973-01-05
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Granted: 1975-12-16
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Expires: 1993-01-05
Abstract
Abstract Process for the thermally induced addition of hexafluoropropene to a substituted hydrocarbon compound free of acetylenic and terminal ethylenic unsaturation, and containing at least one aliphatic carbon-hydrogen bond and at least one functional group inert under the conditions of the reaction.
Inventors
- 👤 Robert Neville Haszeldine
- 👤 Ronald Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:57
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/91; C07; C07C; C07C17/00; C07C17/26; C07C17/272; C07C17/278; C07C29/00; C07C29/44; C07C323/00; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12; C07D; C07D309/00; C07D309/16; C07D309/20; C08F; C08F8/00; C08F8/18; C08F8/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
99 words
A PROCESS FOR INSERTING HEXAFLUOROPROPENE INTO THE STRUCTURE OF A SUBSTITUTED HYDROCARBON COMPOUND FREE OF ACETYLENIC AND TERMINAL ETHYLENIC UNSATURATION, AND CONTAINING AT LEAST ONE ALIPHATIC CARBON-HYDROGEN BOND AND AT LEAST ONE FUNCTIONAL MOIETY INERT UNDER THE CONDITIONS OF REACTION SELECTED FROM THE CLASS CONSISTING OF HALOGENS, SAID INSERTION OF HEXAFLUOROPROPENE BEING AT SAID CARBON-HYDROGEN BOND, WHICH COMPRISES CONTACTING SAID SUBSTITUTED HYDROCARBON COMPOUND WITH HEXAFLUOROPROPENE MONOMER AT A TEMPERATURE IN THE RANGE OF ABOUT 160*C TO ABOUT 350*C, AND AT A PRESSURE OF ABOUT 1 TO ABOUT 250 ATMOSPHERES, IN THE ABSENCE OF FREE OXYGEN-CONTAINING GASES AND FREE-RADICAL CATALYST.
Claim 2
Dependent Claim
99 words
A PROCESS FOR INSERTING HEXAFLUOROPROPENE INTO THE STRUCTURE OF A SUBSTITUTED HYDROCARBON COMPOUND FREE OF ACETYLENIC AND TERMINAL ETHYLENIC UNSATURATION, AND CONTAINING AT LEAST ONE ALIPHATIC CARBON-HYDROGEN BOND AND AT LEAST ONE FUNCTIONAL MOIETY INERT UNDER THE CONDITIONS OF REACTION SELECTED FROM THE CLASS CONSISTING OF HALOGENS, SAID INSERTION OF HEXAFLUOROPROPENE BEING AT SAID CARBON-HYDROGEN BOND, WHICH COMPRISES CONTACTING SAID SUBSTITUTED HYDROCARBON COMPOUND WITH HEXAFLUOROPROPENE MONOMER AT A TEMPERATURE IN THE RANGE OF ABOUT 160*C TO ABOUT 350*C, AND AT A PRESSURE OF ABOUT 1 TO ABOUT 250 ATMOSPHERES, IN THE ABSENCE OF FREE OXYGEN-CONTAINING GASES AND FREE-RADICAL CATALYST.
Claim 3
Dependent Claim
27 words
A process according to claim 1 wherein the temperature is in the range of about 220*C to 300*C and the pressure is from 10 to 100 atmospheres.
Claim 4
Dependent Claim
25 words
A process according to claim 1 wherein the molar ratio of hexafluoropropene to the substituted hydrocarbon reactant is in the range of 2:1 to 4:1.
References Cited (Backward Citations)
US2983764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |