2,4-Tolylenediisocyanate, trimethylol propane, 1,3-butylene glycol polymer

2,4-Diisocyanato-1-methylbenzene, trimethylolpropane, 1,3-butylene glycol polymer

1,3-Butanediol, polymer with 2,4-diisocyanato-1-methylbenzene and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol