1,3-Butanediol, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane 30228-07-0 Isophorone diisocyanate, trimethylolpropane, 1,3-butylene glycol polymer