Patent ID: 6878770

Claim:
An aqueous composition containing (1) ammonio-containing organosilicon compounds which, per molecule, contain at least one moiety of the formula where z is an integer from 1 to 20, (2) anions of an acid having a pk a greater than 0, (3) water, (4) optionally water-miscible solvents, (5) optionally emulsifiers; wherein the ammonio-containing organosilicon compounds contain (a′) at least one siloxane unit of the formula where each R is the same or different and represents a monovalent optionally halogenated hydrocarbon radical having 1 to 18 carbon atoms per radical, each R 1 is the same or different and represents a monovalent hydrocarbon radical having 1 to 8 carbon atoms per radical, a is 0, 1, 2 or 3, b is 0, 1, 2 or 3, with the proviso that the sum of a+b is ≦2, Y is an organic radical of the formula where R 2 is a divalent organic radical, R 3 is a hydrogen atom or a monovalent hydrocarbon radical having 1 to 60 carbon atoms per radical which may be interrupted or substituted by one or more separate hetero atoms selected from the group consisting of nitrogen, oxygen, sulfur and halogen, R 3 ′ has the meaning of R 3 , R 4 is a divalent hydrocarbon radical having 3 to 10 carbon atoms per radical, n is 0 or an integer from 1 to 10, m is an integer from 1 to the total number of nitrogen atoms in (I), each x is the same or different and represents 1, X − is an acid anion whose corresponding acid has a pK a value greater than 0, with the proviso that the structural unit of formula (I) contains at least one moiety of two protonated nitrogen atoms which are joined together by a hydrocarbon radical of at least three carbon atoms, and (b) at least one siloxane unit of the formula where R, R 1 , a and b are each as defined above, and with the proviso that the sum of a+b is ≦3; and wherein the ammonio-containing organosilicon compounds contain (d′) at least one bridging unit of the formula where R, R 1 , a and b are each as defined above, with the proviso that the sum of a+b is ≦2, Y′ is an organic radical of the formula where R 2 , R 3 , R 4 , n, m, x and X − are each as defined above, with the proviso that the structural unit of the formula (I′) contains at least one moiety of two protonated nitrogen atoms which are joined together by a hydrocarbon radical of at least three carbon atoms.