The invention provides compounds preparable by the reaction of fluorous silanes (A) R.sub.F--CH.sub.2--CH.sub.2--SiX.sub.3 (A) where R.sub.F is a fully or partially fluorinated alkyl radical, X is Cl or O--C.sub.nH.sub.2n+1, and n is an integer from 1 to 20, with one or more alcohols of the formula (B) R(OH).sub.m(NH.sub.2).sub.p (B) where R is a C- and H-containing organic radical and m and p are subject either to condition a) m.gtoreq.2 and p=0, or condition b) m.gtoreq.1 and p.gtoreq.1.