| 摘要 |
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. |
