Patent ID: 8217121

Claim:
Aromatic hydrogenated polymers comprising perfluoropolyether (PFPE) chains bonded to the aromatic rings forming sequences that are randomly distributed in the polymer structure, having the formula (I): (T 1 -CF 2 O—Rf—CF 2 ) n -T 3 (I) wherein: n is an integer from 1 to 10, T 1 has the following meanings: optionally substituted aromatic group, several optionally substituted condensed aromatic groups, T 1 being an aromatic ring of the backbone of the hydrogenated polymer; T 3 optionally being equal to T 1 , or alternatively a functional group: —COON or —COF, and Rf is a (per)fluoropolyoxyalkylene chain, wherein the starting hydrogenated aromatic polymers are obtained by polycondensation, stepwise polyaddition, or polyaddition of cyclic monomers in which the ring is formed from at least 3 atoms.