1,3-Benzenedicarboxylic acid, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, dimethyl pentanedioate and 2,2-dimethyl-1,3-propanediol 64653-84-5 Neopentyl glycol, dimethyl glutarate, isophthalic acid, trimelliticanhydride polymer