US4383929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorinated sulphobetaines and compositions containing the same
Assignee: Produits Chimiques Ugine Kuhlmann
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Filing: 1980-03-24
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Granted: 1983-05-17
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Expires: 2000-03-24
Abstract
Abstract A fluorinated sulphobetaine compound of the general formula <IMAGE> wherein RF represents a straight-chained or branched perfluorinated aliphatic chain CnF2n+1 (n being an integer between 1 and 20), a is an integer between 0 and 10, X is CO or SO2, p is an integer between 0 and 10, R1 is a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms, R2 and R3 are each alkyl radicals containing 1 to 6 carbon atoms, and Z is a bivalent organic group; and fire extinguishing compositions comprising such fluorinated sulphobetaine compounds.
Inventors
- 👤 Rene Bertocchio
- 👤 Louis Foulletier
- 👤 Andre Lantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:44
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0028; A62D1/0035; A62D1/0042; A61; A61P; A61P29/00; C; C09; C09K; C09K23/00; C09K23/18; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/05; Y10S516/905; Y10S516/909; Y10S516/91
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
129 words
A linear fluorinated sulphobetaine compound having the formula: ##STR38## wherein R F is a straight-chained or branched aliphatic perfluorinated chain C n F 2n+1 , n being an integer from 1 to 20, a is an integer from 0 to 10, X is a CO or SO 2 radical, p is an integer from 0 to 10, R 1 is a hydrogen atom or an alkyl radical containing 1 to 6 carbon atoms, R 2 and R 3 are each alkyl radicals containing 1 to 6 carbon atoms, and Z is a lower alkylene radical having the formula (CH 2 ) q wherein q is an integer from 1 to 10 or a polymethylene radical substituted either by an alkyl group or by the functional group OH or COOH.
Claim 2
Dependent Claim
129 words
A linear fluorinated sulphobetaine compound having the formula: ##STR38## wherein R F is a straight-chained or branched aliphatic perfluorinated chain C n F 2n+1 , n being an integer from 1 to 20, a is an integer from 0 to 10, X is a CO or SO 2 radical, p is an integer from 0 to 10, R 1 is a hydrogen atom or an alkyl radical containing 1 to 6 carbon atoms, R 2 and R 3 are each alkyl radicals containing 1 to 6 carbon atoms, and Z is a lower alkylene radical having the formula (CH 2 ) q wherein q is an integer from 1 to 10 or a polymethylene radical substituted either by an alkyl group or by the functional group OH or COOH.
Claim 3
Dependent Claim
34 words
The compound of claim 1, wherein a is equal to 2, p is equal to 3, R 1 is a hydrogen or methyl radical, and R 2 and R 3 are each methyl radicals.
Claim 4
Dependent Claim
33 words
The compound of claims 1 or 2, wherein Z is selected from a lower alkylene radical having the formula --(CH 2 ) q -- wherein q is an integer from 1 to 3.
Claim 5
Dependent Claim
44 words
A fluorinated sulphobetaine compound having the formula: ##STR39## wherein R 1 is selected from a hydrogen atom or a methyl radical and Z is selected from --CH 2 --CH 2 --, --CH 2 --CH 2 --CH 2 --, or --CH 2 --CH(OH)--CH 2 --.
Claim 6
Dependent Claim
44 words
A fluorinated sulphobetaine compound having the formula: ##STR39## wherein R 1 is selected from a hydrogen atom or a methyl radical and Z is selected from --CH 2 --CH 2 --, --CH 2 --CH 2 --CH 2 --, or --CH 2 --CH(OH)--CH 2 --.
Claim 7
Dependent Claim
16 words
A fire extinguishing composition comprising a solution of a compound of claims 1, 2, or 4.
Claim 8
Dependent Claim
54 words
A fire extinguishing composition comprising an aqueous or aqueous saline solution of a fluorinated sulphobetaine compound of claims 1, 2, or 4 and a non-fluorinated non-ionic surfactant, said fluorinated sulphobetaine compound being present in said solution in an amount sufficient to obtain a good spreading rate of the composition on the surface of hydrocarbons.
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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) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |