Fluorine-containing betaine compounds, and production and use th

Details Fluorine-containing betaine compounds, and production and use th Fluorine-containing betaine compounds, and production and use th

1979-04-12

1981-07-14

Lovering, Richard D.

Compositions

Fire-extinguishing

Foam or gas phase containing

169 47, 252 805, 252356, 252546, 252DIG7, 26050113, A62C 112, A62D 104, C07C10124

Patent

active

042785529

ABSTRACT:
A fluorine-containing betaine compound of the formula: ##STR1## wherein Rf is a polyfluoroalkyl group having 3 to 21 carbon atoms, A is a group of the formula: ##STR2## (wherein R.sup.4 is a hydrogen atom or an acyl group having 2 or 3 carbon atoms and p is an integer of 1 to 5), R.sup.1 is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or a group of the formula: Rf--A--, R.sup.2 and R.sup.3 are each a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, m is an integer of 2 to 6 and n is an integer of 1 to 4, which is useful as an additive to a foam fire-extinguishing composition for polar organic liquids.

REFERENCES:
patent: 3258423 (1966-06-01), Tuve et al.
patent: 3429810 (1969-02-01), White
patent: 3772195 (1973-11-01), Francen
patent: 3950417 (1976-04-01), Verdicchio et al.
patent: 4069158 (1978-01-01), Bertocchio et al.
patent: 4099574 (1978-07-01), Cooper et al.
patent: 4148762 (1979-04-01), Koch et al.

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