2-Oxepanone, polymer with 1,4-butanediol, 1,3-diisocyanatomethylbenzene and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol 9068-99-9 Benzene, 1,3-diisocyanatomethyl, polymer with 1,4-butanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 2-oxepanone