US4273728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyfluoroallyloxy compounds, their preparation and copolymers therefrom
Assignee: EIDP Inc
•
Filing: 1980-05-01
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Granted: 1981-06-16
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Expires: 2000-05-01
Abstract
Abstract The reaction of a polyfluorocarbonyl compound such as a polyfluoroketone or polyfluorocarboxylic acid fluoride with fluoride ion and a polyfluoroallyl chloride, bromide or fluorosulfate produces a polyfluoroallyloxy compound, e.g., CF 2 ═CFCF 2 OCF 2 CF 2 CN. The polyfluoroallyloxy compounds copolymerize with ethylenically unsaturated monomers such as tetrafluoroethylene, chlorotrifluoroethylene or vinylidene fluoride to form polymers which are moldable, and in some cases electrically conducting or are waterwettable and dyeable.
Inventors
- 👤 Carl G. Krespan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:10
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/58; C07C51/62; C07C43/00; C07C43/02; C07C43/20; C07C43/225
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
A polyfluoroallyloxy compound having the formula: ##STR69## wherein X is --Cl or --F, and R F is: ##STR70## wherein R 1 is a carbon-carbon bond or a linear or branched perfluoroalkylene group of 1 to 12 carbon atoms; Y and Y', independently, are --F or --CF 3 providing that only one of Y and Y' can be --CF 3 ; or ##STR71## wherein R 3 is a linear or branched perfluoroalkylene group of carbon content such that the moiety ##STR72## does not exceed 15 carbon atoms; Y is --F or --CF 3 ; and n is 1 to 4.
Claim 2
Dependent Claim
99 words
A polyfluoroallyloxy compound having the formula: ##STR69## wherein X is --Cl or --F, and R F is: ##STR70## wherein R 1 is a carbon-carbon bond or a linear or branched perfluoroalkylene group of 1 to 12 carbon atoms; Y and Y', independently, are --F or --CF 3 providing that only one of Y and Y' can be --CF 3 ; or ##STR71## wherein R 3 is a linear or branched perfluoroalkylene group of carbon content such that the moiety ##STR72## does not exceed 15 carbon atoms; Y is --F or --CF 3 ; and n is 1 to 4.
Claim 3
Dependent Claim
11 words
The polyfluoroallyloxy compound of claim 1 wherein R F is ##STR73##
Claim 4
Dependent Claim
26 words
The polyfluoroallyloxy compound of claim 2 wherein R 1 is a carbon-carbon bond or a linear or branched perfluoroalkylene group of 1 to 8 carbon atoms.
Claim 5
Dependent Claim
10 words
The polyfluoroallyloxy compound of claim 3 wherein X is --F.
Claim 6
Dependent Claim
15 words
The polyfluoroallyloxy compound of claim 1 wherein R F is --CF(CF 2 CN) 2 .
Claim 7
Dependent Claim
11 words
The polyfluoroallyloxy compound of claim 1 wherein R F is ##STR74##
Claim 8
Dependent Claim
15 words
The polyfluoroallyloxy compound of claim 6 wherein R F contains up to 8 carbon atoms.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |