Synonyms:
1,3-benzenedicarboxylic acid polymer with 1,4-benzenedicarboxylic acid and 1,2-ethanediol ; isophthalate copolymer ; 1,3-benzenedicarboxylic acid, 1,4-benzenedicarboxylic acid, 1,2-ethanediol polymer ; 1,3-benzenedicarboxylic acid polymer with 1,4-benzenedicarboxylic acid and 1,2-ethanediol ; polyethylene terephthalate, isophthalate copolymer ; ethylene glycol·isophthalic acid·terephthalic acid