| abstract |
The invention relates to cationic surfactants of the formula: n n nin which R is an alkyl or alkenyl group containing 11 carbon atoms, R 1 and R 2 represent hydrogen or C 1-4 alkyl group, R 3 is a C 1-4 alkyl group, R 4 is hydrogen or a methyl group, A is a linear or branched C 2-6 alkylene group, n is a number of 1 to 25 and X is halogen or alkyl sulfate. |