1,3-Benzenedicarboxylic acid, dimethyl ester, polymer with 1,4-butanediol, dimethyl 1,4-benzenedicarboxylate and alpha-hydro-omega-hydroxypoly(oxy-1,4-butanediyl) 1,4-Butanediol, dimethyl isophthalate, dimethyl terephthalate, alpha-hydro-omega-hydroxypoly(oxytetramethylene) polymer 1,4-Butanediol, dimethyl isophthalate, poly(oxytetramethylene), alpha-hydro-omega-hydroxy-, dimethyl terephthalate polyester 51774-89-1 9086-55-9