US3941705A
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US
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Fire extinguishing compositions containing fluorinated surfactants
Assignee: Produits Chimiques Ugine Kuhlmann
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Filing: 1975-03-18
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Granted: 1976-03-02
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Expires: 1995-03-18
Abstract
Abstract A surface-active fluorinated composition characterized by the association therein of from 35% to about 60% of at least one surface-active ampholyte compound of the formula R2 CnF2n+1-(CH2)a-CON-(CH2)p-N<+>---(CH2)qCOO<-> ¦ R1R3 wherein n is an integer between 1 and 20, a is a number between 2 and 10, R1 is an atom of hydrogen or an alkyl radical containing from 1 to 6 atoms of carbon, R2 and R3 are alkyl radicals containing from 1 to 3 atoms of carbon, at least one of which is the methyl radical and p and q are integers between 0 and 10; from about 20% to about 40% of at least one surface-active fluorinated non-ionic compound of the formula CnF2n+1 - (CH2)a - CO-O-(CH2-CH2-O)mR4 wherein n and a have the same meaning as above, m is an integer between 1 and 20 and R4 is an alkyl radical containing from 1 to 6 atoms of carbon; and from about 8% to about 40% of at least one amine salt compound of the formula R1 CnF2n+1-(CH2)a-XO<->HN<+>--R5 R6 wherein X is the group CO or SO2+L, R1, R5 and R6 may be hydrogen atoms, alkyl radicals containing from 1 to 6 atoms of carbon, or the group R2 -(CH2)p-N<+>---(CH2)q-COO<-> R3 in which R2, R3, p and q have the values given above.
Inventors
- 👤 Louis Foulletier
- 👤 Rene Bertocchio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:35
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0071; A62D1/0085; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
226 words
A surface-active fluorinated composition characterized by the association therein of from 35% to about 60% of at least one surface-active ampholyte compound of the formula ##EQU14## wherein n is an integer between 1 and 20, a is a number between 2 and 10, R 1 is an atom of hydrogen or an alkyl radical containing from 1 to 6 atoms of carbon, R 2 and R 3 are alkyl radicals containing from 1 to 3 atoms of carbon, at least one of which is the methyl radical and p and q are integers between 0 and 10; from about 20% to about 40% of at least one surface-active fluorinated non-ionic compound of the formula C.sub.n F.sub.2n.sub.+1 -- (CH.sub.2).sub.a -- CO--O--(CH.sub.2 --CH.sub.2 --O).sub.m R.sub.4 wherein n and a have the same meaning as above, m is an integer between 1 and 20 and R 4 is an alkyl radical containing from 1 to 6 atoms of carbon; and from about 8% to about 40% of at least one amine salt compound of the formula ##EQU15## wherein X is the group CO or SO 2 , R 1 , R 5 and R 6 may be hydrogen atoms, alkyl radicals containing from 1 to 6 atoms of carbon, or the group ##EQU16## in which R 2 , R 3 , p and q have the values given above.
Claim 2
Dependent Claim
226 words
A surface-active fluorinated composition characterized by the association therein of from 35% to about 60% of at least one surface-active ampholyte compound of the formula ##EQU14## wherein n is an integer between 1 and 20, a is a number between 2 and 10, R 1 is an atom of hydrogen or an alkyl radical containing from 1 to 6 atoms of carbon, R 2 and R 3 are alkyl radicals containing from 1 to 3 atoms of carbon, at least one of which is the methyl radical and p and q are integers between 0 and 10; from about 20% to about 40% of at least one surface-active fluorinated non-ionic compound of the formula C.sub.n F.sub.2n.sub.+1 -- (CH.sub.2).sub.a -- CO--O--(CH.sub.2 --CH.sub.2 --O).sub.m R.sub.4 wherein n and a have the same meaning as above, m is an integer between 1 and 20 and R 4 is an alkyl radical containing from 1 to 6 atoms of carbon; and from about 8% to about 40% of at least one amine salt compound of the formula ##EQU15## wherein X is the group CO or SO 2 , R 1 , R 5 and R 6 may be hydrogen atoms, alkyl radicals containing from 1 to 6 atoms of carbon, or the group ##EQU16## in which R 2 , R 3 , p and q have the values given above.
Claim 3
Dependent Claim
29 words
A method of extinguishing fires which comprises applying thereto an effective amount of an aqueous solution, including from 0.1 to 2% of the surface-active fluorinated compositions of claim 1.
Claim 4
Dependent Claim
27 words
A method of reducing the surface tension of a liquid which comprises adding thereto an effective amount of at least one surface-active fluorinated composition of claim 1.
Claim 5
Dependent Claim
28 words
A method of retarding the evaporation of a volatile organic liquid which comprises applying thereto an effective amount of at least one surface-active fluorinated composition of claim 1.
Claim 6
Dependent Claim
40 words
A method of extinguishing hydrocarbon fires which comprises applying thereto an effective amount of a protein containing or protein-type solution including from 0.1 to 2% of the surface-active fluorinated compositions of claim 1 and from 2 to 6% of protein.
Claim 7
Dependent Claim
71 words
A surface-active fluorinated composition of claim 1 in which the surface-active ampholyte compound is the derivative C.sub.8 F.sub.17 C.sub.2 H.sub.4 CONH-- (CH.sub.2).sub.3 N.sup.+ (CH.sub.3).sub.2 CH.sub.2 --CH.sub.2 --COO.sup.- and the non-ionic compound is the derivative C 6 f 13 -- c 2 h 4 coo --(ch 2 --ch 2 --o) 7 ch 3 and the amine salt compound is the derivative C.sub.6 F.sub.13 --C.sub.2 H.sub.4 --COO.sup.-, N.sup.+H.sub.3 --(CH.sub.2).sub.3 --N.sup.+(CH.sub.3).sub.2 --CH.sub.2 --CH.sub.2 --COO.sup.-.
Claim 8
Dependent Claim
30 words
a method of extinguishing fires which comprises applying thereto an effective amount of an aqueous solution containing from about 0.1 to 2% of the surface-active fluorinated composition of claim 6.
Claim 9
Dependent Claim
25 words
A method of reducing the surface tension of a liquid which comprises adding thereto an effective amount of the surface-active fluorinated composition of claim 6.
Claim 10
Dependent Claim
26 words
A method of retarding the evaporation of a volatile organic liquid which comprises applying thereto an effective amount of the surface-active fluorinated composition of claim 6.
Claim 11
Dependent Claim
40 words
A method of extinguishing hydrocarbon fires which comprises applying thereto an effective amount of a protein containing or protein-type solution including from 0.1 to 2% of the surface-active fluorinated compositions of claim 6 and from 2 to 6% of protein.
Claim 12
Dependent Claim
274 words
A surface-active fluorinated composition characterized by the association therein of from 35% to about 60% of at least one surface-active ampholyte compound of the formula ##EQU17## wherein n is an integer between 1 and 20, a is a number between 2 and 10, R 1 is an atom of hydrogen or an alkyl radical containing from 1 to 6 atoms of carbon, R 2 and R 3 are alkyl radicals containing from 1 to 3 atoms of carbon, at least one of which is the methyl radical and p and q are integers between 0 and 10; from about 20% to about 40% of at least one surface-active fluorinated non-ionic compound of the formula C.sub.n F.sub.2n.sub.+1 -- (CH.sub.2).sub.a -- CO--O(CH.sub.2 --CH.sub.2 --O).sub.m R.sub.4 wherein n and a have the same meaning as above, m is an integer between 1 and 20 and R 4 is an alkyl radical containing from 1 to 6 atoms of carbon; and from about 8% to about 40% of at least one diamine salt compound of the formula ##EQU18## wherein n, a, p, R 1 , R 2 and R 3 have the same meaning as above, or at least one amine salt compound of the formula ##EQU19## wherein n and a have the same meaning as above, X is the group CO or SO 2 , R 1 , R 5 and R 6 may be hydrogen atoms, alkyl radicals containing from 1 to 6 atoms of carbon, hydroxyalkyl radicals containing from 1 to 3 atoms of carbon, or the group ##EQU20## in which R 2 , R 3 , p and q have the values given above
Claim 13
Dependent Claim
274 words
A surface-active fluorinated composition characterized by the association therein of from 35% to about 60% of at least one surface-active ampholyte compound of the formula ##EQU17## wherein n is an integer between 1 and 20, a is a number between 2 and 10, R 1 is an atom of hydrogen or an alkyl radical containing from 1 to 6 atoms of carbon, R 2 and R 3 are alkyl radicals containing from 1 to 3 atoms of carbon, at least one of which is the methyl radical and p and q are integers between 0 and 10; from about 20% to about 40% of at least one surface-active fluorinated non-ionic compound of the formula C.sub.n F.sub.2n.sub.+1 -- (CH.sub.2).sub.a -- CO--O(CH.sub.2 --CH.sub.2 --O).sub.m R.sub.4 wherein n and a have the same meaning as above, m is an integer between 1 and 20 and R 4 is an alkyl radical containing from 1 to 6 atoms of carbon; and from about 8% to about 40% of at least one diamine salt compound of the formula ##EQU18## wherein n, a, p, R 1 , R 2 and R 3 have the same meaning as above, or at least one amine salt compound of the formula ##EQU19## wherein n and a have the same meaning as above, X is the group CO or SO 2 , R 1 , R 5 and R 6 may be hydrogen atoms, alkyl radicals containing from 1 to 6 atoms of carbon, hydroxyalkyl radicals containing from 1 to 3 atoms of carbon, or the group ##EQU20## in which R 2 , R 3 , p and q have the values given above
Claim 14
Dependent Claim
31 words
A method of extinguishing fires which comprises applying thereto an effective amount of an aqueous solution, including from 0.1 to 2% of at least one surface-active fluorinated composition of claim 11.
Claim 15
Dependent Claim
27 words
A method of reducing the surface tension of a liquid which comprises adding thereto an effective amount of at least one surface-active fluorinated composition of claim 11.
Claim 16
Dependent Claim
28 words
A method of retarding the evaporation of a volatile organic liquid which comprises applying thereto an effective amount of at least one surface-active fluorinated composition of claim 11.
Claim 17
Dependent Claim
42 words
A method of extinguishing hydrocarbon fires which comprises applying thereto an effective amount of a protein containing or protein-type solution including from 0.1 to 2% of at least one surface-active fluorinated composition of claim 11 and from 2 to 6% of protein.
Claim 18
Dependent Claim
64 words
A surface-active fluorinated composition of claim 11 in which the surface-active ampholyte compound is the derivative C.sub.8 F.sub.17 C.sub.2 H.sub.4 CONH-- (CH.sub.2).sub.3 N.sup.+ (CH.sub.3).sub.2 CH.sub.2 --CH.sub.2 --COO.sup.- and the non-ionic compound is the derivative C.sub.6 F.sub.13 -- C.sub.2 H.sub.4 COO -- (CH.sub.2 --CH.sub.2 --O).sub.7 CH.sub.3 and the amine salt compound is the derivative C.sub.6 F.sub.13 --C.sub.2 H.sub.4 --COO.sup.-, N.sup.+H.sub.3 --(CH.sub.2).sub.3 --N.sup.+(CH.sub.3).sub.2 --CH.sub.2 --CH.sub.2 --COO.sup.-.
Claim 19
Dependent Claim
30 words
a method of extinguishing fires which comprises applying thereto an effective amount of an aqueous solution containing from about 0.1 to 2% of the surface-active fluorinated composition of claim 16.
Claim 20
Dependent Claim
25 words
A method of reducing the surface tension of a liquid which comprises adding thereto an effective amount of the surface-active fluorinated composition of claim 16.
Claim 21
Dependent Claim
26 words
A method of retarding the evaporation of a volatile organic liquid which comprises applying thereto an effective amount of the surface-active fluorinated composition of claim 16.
Claim 22
Dependent Claim
40 words
A method of extinguishing hydrocarbon fires which comprises applying thereto an effective amount of a protein containing or protein-type solution including from 0.1 to 2% of the surface-active fluorinated composition of claim 16 and from 2 to 6% of protein.
References Cited (Backward Citations)
US3772195A
Cited
US3661776A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |