A process for preparing a material having hydrophobic and/or oleophobic properties and material thus obtained

摘要

Hydrophobic and optionally also oleophobic properties are imparted to substrates by a contacting said substrate with the material obtained by reacting in an alkaline solution at least one catechol of formula :
wherein n is 5 to 16; m is 0 or 1 and R is an alkyl chain C 6 to C 17 , optionally substituted with one or more Fluorine atoms.