英文名称:Hexanedioic acid, polymer with 1,4-butanediol, 1,3-diisocyanato-2-methylbenzene, 2,4-diisocyanato-1-methylbenzene, 1,2-ethanediol and 4,4-diisocyanato-3,3-dimethyl(1,1-biphenyl); Hexanedioic acid, polymer with 1,4-butanediol, 4,4’-diisocyanato-3,3’-dimethyl-1,1’-biphenyl, 1,3-diisocyanato-2-methylbenzene, 2,4-diisocyanato-1-methylbenzene and 1,2-ethanediol