34313-71-8 Hexanedioic acid, polymer with 1,4-butanediol, 1,3-diisocyanato-2-methylbenzene, 1,3-diisocyanato-4-methylbenzene and 1,2-ethanediol Hexanedioic acid, polymer with 1,4-butanediol, 1,3-diisocyanato-2-methylbenzene, 2,4-diisocyanato-1-methylbenzene and 1,2-ethanediol