Perfluoroalkylamine oxides and use of these products in fire extinguishing compositions
AssigneeP C U K Produits Chimiques Ugine Kuhlmann
InventorsRene Bertocchio, Louis Foulletier, Andre Lantz
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Abstract
Perfluoroalkyl amine oxides of the following formula: ##STR1## where C.sub.n F.sub.2n+1 is a straight or branched perfluorinated chain, n is a whole number from 1 to 20, a is a whole number from 2 to 10, p is a whole number from 0 to 10, R.sub.1 is either a hydrogen atom or an alkyl radical having 1 to 6 carbon atoms, and R.sub.2 and R.sub.3 are alkyl radicals having 1 to 6 carbon atoms, and the use of the amine oxides as surface active agents particularly in fire extinguishing compositions.
Claims9
A surface-active composition containing, as a surface-active agent, a perfluoralkyl amine oxide having the formula:
- ##STR21## where n is equal to 6 or 8.
A composition useful for suppressing vaporization of liquid hydrocarbons which comprises water and perfluoralkyl amine oxide having the formula:
- ##STR22## where n is equal to 6 or 8.
A composition for suppressing vaporization of liquid hydrocarbons which comprises water, a perfluoralkyl amine oxide having the formula:
- ##STR23## where n is equal to 6 or 8, and a non-fluorinated surfactant or a fluorinated surfactant which is different from said amine oxide.
A method for extinguishing hydrocarbon fires which utilizes a composition having considerably improved spreading velocity at both low and high amine oxide concentrations on cyclohexane and gasoline which contains novel perfluoralkyl amine oxides of the following formula:
- ##STR24## where n is equal to 6 or 8.
Dependencies are inferred from the claim text.