| 摘要 |
Fluoroalkyl-modified organosilanes, processes for preparing them, and their use, particularly in coating compositions for the purpose of reducing the soiling tendency of said compositions The present invention relates to organosilanes of the general formula (I) where R is a fluorinated or partly fluorinated alkyl radical of the formula CnZ2n+1(CH2)m-, with n>=1, m>=1, and Z either a hydrogen atom or a fluorine atom, with the proviso that at least one Z is a fluorine atom, Y is a hydrogen atom or alkyl radical having 1 to 10 carbon atoms, X is alternatively a hydrogen atom, a linear or branched alkyl radical having 1 to 10 carbon atoms, a radical of the formula ROC(O)(CHY)(CH2)-, a phenyl radical or a benzyl radical, R<1 >is a linear or branched alkylene radical having 1 to 20 carbon atoms, and R<2>, R<3>, and R<4 >are linear or branched alkyl radicals having 1 to 10 carbon atoms or linear or branched alkoxy radicals having 1 to 10 carbon atoms, which are attached via the oxygen atom to the silicon atom, processes for preparing them, and their use, particularly in coating compositions for the purpose of reducing the soiling tendency of said compositions.
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