1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 1,4-butanediol, nonanedioic acid and 2-oxepanone 1,4-Butanediol, terephthalic acid, isophthalic acid, azelaic acid, polycaprolactone polymer 149717-46-4 68391-14-0