Synonyms: 1,3-Benzenedicarboxylic acid, polymer with 1,4-butanediol, dimethyl 1,4-benzenedicarboxylate and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl);Polymer of DMT, IPS, 1,4-BD, poly-EG;Polymer of DMT,IPS,1,4-BD,poly-EG;1,3-Benzenedicarboxylic acid polymer with 1,4-butanediol, dimethyl 1,4-benzenedicarboxylate and and a-hydro-w-hydroxypoly(oxy-1,2-ethanediyl)