Hexanedioic acid, polymer with N1-(2-aminoethyl)-1,2-ethanediamine, 2-butene-1,4-diol, 1,6-diisocyanatohexane, 1,2-ethanediamine, 1,2-ethanediol, 1,3-isobenzofurandione, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, 2-methyloxirane and sodium sulfite (1:1), polyethylene-polypropylene glycol mono-Bu ether-blocked