英文名称:Hexanedioic acid, polymer with 1,4-butanediol, diphenyl carbonate, 1,6-hexanediol and 1,1-methylenebis4-isocyanatobenzene; Hexanedioic acid, polymer with 1,4-butanediol, diphenyl carbonate, 1,6-hexanediol and 1,1'-methylenebis(4-isocyanatobenzene)