英文名称:Hexanedioic acid,polymer with 1,4-butanediol, 1,6-diisocyanatohexane,2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 2-methyloxirane and oxirane, sodium2-aminoethanesulfonate (1:1)-terminated; Hexanedioicacid, polymer with 1,4-butanediol, 1,6-diisocyanatohexane,2-ethyl-2-(hydroxymethyl)-1,3-propanediol, methyloxirane and oxirane,2-aminoethanesulfonate monosodium salt-terminated