Novel (per)fluoropolyether polymers and use thereof

Abstract

The present invention relates to novel (per)fluoropolyether (PFPE) polymers, to a process for their manufacture and to their use as additives in coating compositions. Specifically, the invention relates to a (per)fluoropolyether polymer [polymer (PP)] comprising a (per)fluoropolyoxyalkylene chain [chain (Rpf)] having two chain ends bonded to opposite sides of said chain (Rpf), wherein: * one of said chain ends comprises at least one, preferably from 1 to 3, group (group [I]) selected from: alkoxysilane [group (Si)] or cross-linkable group, preferably selected from unsaturated moiety [group (U)] and epoxide [group (E)]; and * the other chain end comprises at least one, preferably from 1 to 3, group (group [II]) selected from: optionally substituted piperidine, optionally substituted pyridine or optionally substituted pyrrole.

Dependencies are inferred from the claim text.