1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, dodecanedioic acid, 1,2-ethanediol, hexanedioic acid, 1,6-hexanediol, α-hydro-ω-hydroxypoly[oxy(methyl-1,2-ethanediyl)], 3-hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropanoate, 1,3-isobenzofurandione and 1,1'-methylenebis[isocyanatobenzene]