Self-crosslinking preparations, production and use thereof

Claim 1

A self-crosslinking composition comprising α) water β) at least one alkoxysilane compound containing at least one perfluoroalkyl group, of the formula ##STR8## wherein R f is a monovalent perfluoroalkyl group with 4 to 20 carbon atoms, A is an (a+1)-valent aliphatic, cycloaliphatic, aromatic or heterocyclic group or a radical containing several members selected from the group consisting of aliphatic, cycloaliphatic, aromatic and heterocyclic groups, with 1 to 20 carbon atoms, which radical optionally contains 1 to 10 oxygen, nitrogen or sulphur atoms, b is 1 or 0, a is a number from 1 to 4 if b=1, and 1 if b=0, X, Y and Z are identical or different monovalent alkoxy groups with 1 to 6 carbon atoms optionally interrupted by one or two oxygen atoms, cycloalkoxy groups with 6 to 10 carbon atoms, aryloxy groups with 6 to 10 carbon atoms, alkyl groups with 1 to 6 carbon atoms, cycloalkyl groups with 6 to 10 carbon atoms or aryl groups with 6 to 10 carbon atoms, providing that at least one of X, Y and Z denotes an alkoxy group, and γ) at least one compound soluble in water or emulsifiable or dispersible in water containing at least one perfluoroalkyl group, which compound is produced from γ1, γ2 and γ3, wherein, γ1is at least one sulphonamide containing a perfluoroalkyl group, of the formula ##STR9## wherein R f1 has the same meaning as R f in formula (I), but independently thereof, and R 1 is hydrogen or a monovalent hydrocarbon chain with 1 to 20 carbon atoms, optionally interrupted by 1 to 4 oxygen atoms, γ2is at least one compound having at least one group reactive with 1,2-epoxide groups and having at least one oxyethylene unit, and γ3 is at least one compound which contains at least one 1,2-epoxide group, compound γ containing 5 to 95 wt. % of oxyethylene units.