Fluorine alkyl modified organosilanes, processes for their preparation and their use, in particular in coating compositions for reducing the soiling tendency

摘要

The present invention relates to organosilanes of the general formula (i) dollar f1 in which r is a fluorinated or partially fluorinated alkyl radical of the formula c φ n φ z, φ 2n + 1 φ (ch φ 2 φ) φ m φ -, with n & = 1, m & = 1 and z is either a hydrogen atom or a fluorine atom, with the proviso that at least one z is a fluorine atom, dollar a y is a hydrogen atom or an alkyl group with 1 to 10 c - atoms, dollar a x is either a hydrogen atom, a linear or branched alkyl radical having from 1 to 10 c - atoms, a radical of formula roc (o) (chy) (ch φ 2 φ) -, - a phenyl or benzyl radical, dollar a r · 1 · a linear or branched alkylene radical having 1 to 20 c - atoms and dollars a r · 2 ·, r · 3 · and r · 4 · linear or branched alkyl radicals having 1 to 10 c - atoms or linear or branched alkoxy radicals having 1 to 10 c - atoms, which by means of the oxygen atom are bonded with the silicon atom, dollar a, dollar a process for their production as well as their use, in particular in coating compositions for reducing the soiling tendency.