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Abstract

A copolymer having amide structural elements and polyether structural elements and containing at least one structural element A, at least one structural element B and at least one structural element C, wherein: structural element A is an aliphatic amide repeat unit containing 10 or more carbon atoms, structural element B is an aliphatic amide repeat unit selected from a structural element obtained from at least one amino acid, a structural element obtained from at least one lactam, and a structural element X2.Y2, structural element B containing from 6 to 36 carbon atoms; structural element A being different from structural element B, structural element C is a repeat unit of the formula X3.Y3 obtained from the polycondensation of at least one polyethylene glycol diamine and/or at least one polypropylene glycol diamine designated X3 and having a molecular weight of between 200 and 1000 and a linear aliphatic dicarboxylic acid designated Y3.

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First Claim