Synonyms: 1,4-Benzenedicarboxylic acid, dimethyl ester, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol, 1,2-ethanediol and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl);Ethylene glycol, pentaerythritol, poly(oxyethylene) glycol, dimethyl terephthalate polymer;1,4-Benzenedicarboxylic acid, dimethyl ester, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol, 1,2-ethanediol and 伪-hydro-蠅-hydroxypoly( oxy-1,2-ethanediyl)