| abstract |
Fluorinated polymers based on fluoropolyethers in high dry formulation for use as antigraffiti wherein the fluorinate polymer comprises a fluorinated part R F and optionally an hydrogenated part R H , the bonds linking the fluorinated part derived from (per)fluoropolyethers to the hydrogenated one, being of simple C-O ether type, the T' terminal groups being such as to render bi- or polyfunctional the structure, thus making possible the curing reaction, the hydrogenated part R H not containing groups capable of linking to basic acceptors by hydrogen bonds, and subsequent curing of the fluorinated polymer; or their reaction products by partially, reacting the terminal groups, before curing, to give products containing, besides R F and optionally an hydrogenated part R H not containing groups capable of linking by hydrogen bonds to basic acceptors, an hydrogenated part Rh 1 and Rh 2 , wherein Rh 1 is equal to or different from Rh 2 , and Rh 1 and/or Rh 2 being linking bonds containing at least a functional group capable of binding with basic acceptors by means of hydrogen bonds, the bonds linking the fluorinated part to the hydrogenated part being of simple C-O ether type, the terminal groups T' a and T'' being such as to render mono-, bi- or polyfunctional the structure, and subsequent curing of the fluorinated polymer. |