US4244886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorosulphonyl oxafluoroalkanes and their derivatives
Assignee: Individual
•
Filing: 1979-03-09
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Granted: 1981-01-13
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Expires: 1999-03-09
Abstract
Abstract A new class of fluorosulphonyl oxafluoroalkanes and their derivatives is disclosed as well as a process for preparing said products. Furthermore, a new class of fluorosulphonyl olefins, copolymers thereof and a process for preparing same is also disclosed.
Inventors
- 👤 Gerardo Caporiccio
- 👤 Gianangelo Bargigia
- 👤 Giampiero Guidetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:49
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/04; C07; C07C; C07C309/00; C07C309/01; C07C309/02; C07C309/03; C07C309/07; C07C309/09; C07C309/10; C07C309/78; C07C309/79; C07C309/82; C08; C08F; C08F16/00; C08F16/12; C08F16/14; C08F16/24; C08F214/00; C08F214/18; C08F214/184; C09; C09K; C09K23/00; C09K23/02; C23; C23G; C23G1/00; C23G1/02; C23G1/08; C23G1/086; C25B; C25B13/00; C25B13/04; C25B13/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
35 words
A compound of the formula: ASO.sub.3 --CFXCF.sub.2 --O--CF.sub.2 CFX--(CF.sub.2 --CFX).sub.n --F wherein A is H or K, X is independently selected from the group consisting of F, CF 3 and Cl and n is 0-4.
Claim 2
Dependent Claim
35 words
A compound of the formula: ASO.sub.3 --CFXCF.sub.2 --O--CF.sub.2 CFX--(CF.sub.2 --CFX).sub.n --F wherein A is H or K, X is independently selected from the group consisting of F, CF 3 and Cl and n is 0-4.
Claim 3
Dependent Claim
10 words
A compound according to claim 1, wherein A is H.
Claim 4
Dependent Claim
10 words
A compound according to claim 1, wherein A is K.
Claim 5
Dependent Claim
13 words
A compound according to claim 1, wherein n is from 1 to 4.
Claim 6
Dependent Claim
13 words
A compound according to claim 2, wherein n is from 1 to 4.
Claim 7
Dependent Claim
13 words
A compound according to claim 3, wherein n is from 1 to 4.
Claim 8
Dependent Claim
34 words
A compound according to claim 6, having very good surface-active properties, wherein X is F and having the formula: KSO.sub.3 --CF.sub.2 CF.sub.2 --O--CF.sub.2 CF.sub.2 --(CF.sub.2 CF.sub.2).sub.n --F wherein n is from 1 to 4.
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) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |