Hexanedioic acid, polymer with 1,4-butanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, α-hydro-ω-hydroxypoly[ oxy(methyl-1,2-ethanediyl)], 1,1'-methylenebis[isocyanatobenzene] and methyloxirane