Methylenediphenyldiisocyanate, adipic acid, 1,4-butanediol, ethylene glycol polymer

Poly(butylene ethylene adipate), 1,4-butanediol, methylenebis(phenyl isocyanate) copolymer

Hexanedioic acid, polymer with 1,4-butanediol, 1,2-ethanediol and 1,1-methylenebisisocyanatobenzene

Hexanedioic acid, polymer with 1,4-butanediol, 1,2-ethanediol and 1,1'-methylenebis(4-isocyanatobenzene), block