Biscationic acid amide and imide derivatives and processes for their preparation

Biscationic acid amide or imide derivatives of the general formula I ##STR111## in which R.sub.1 to R.sub.8 independently of one another are in each case a hydrogen atom or in each case a substituted or unsubstituted aliphatic group, which can be interrupted by hetero atoms, and in the case where R.sub.1 and R.sub.2, or R.sub.4 or R.sub.5 form a double bond to K or K', there is no R.sub.3 or R.sub.6 substituent, and in which A and A' and W.sup.1 as a divalent bridge member independently of one another are in each case a substituted or unsubstituted aliphatic or aromatic bridge member which can be interrupted by hetero atoms, or W.sup.1 is a direct bond, and K and K' are in each case a nitrogen atom, and the radicals R.sub.9 to R.sub.12 independently of one another are aliphatic, cycloaliphatic, aromatic or araliphatic radicals, in which the aliphatic, cycloaliphatic, aromatic and araliphatic radicals can be substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or aryl radicals, or halogen atoms, and mixtures of these compounds and mixed crystals with mixed anions and/or cations.