68833-80-7 Isocyanic acid, polymethylenepolyphenylene ester, polymer with 1,3-diisocyanatomethylbenzene, alpha-hydro-omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)) and alpha-hydro-omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)) ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (3:1)