Patent US1666824A successfully refreshed from Google Patents.
Patent US4383929A successfully refreshed from Google Patents.
US4383929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorinated sulphobetaines and compositions containing the same
Assignee: Produits Chimiques Ugine Kuhlmann
•
Filing: 1980-03-24
•
Granted: 1983-05-17
•
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 14:49
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.
References Cited (Backward Citations)
US3258423A
Cited
US3562156A
Cited
FR2084888A5
Cited
FR2086904A5
Cited
FR2088594A5
Cited
FR2088699A5
Cited
FR2088941A5
Cited
FR2122918A5
Cited
US3941705A
Cited
FR2185668B1
Cited
US3950417A
Cited
FR2308674B1
Cited
US4099574A
Cited
FR2373551A1
Cited
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 |