Synonyms: 1,3-Benzenedicarboxylic acid, dimethyl ester, polymer with 1,4-butanediol, dimethyl 1,4-benzenedicarboxylate and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl);BUTYLENE/POLY(ALKYLENE ETHER) PHTHALATE;1,3-Benzenedicarboxylic acid, dimethyl ester, polymer with 1,4-butanediol, dimethyl 1,4-benzenedicarboxylate and α-hydro-ω-hydroxypoly( oxy-1,4-butanediyl);dimethyl isophthalate-terephthalate/butanediol deriv.