68908-76-9 Dibutyl bis(omega-hydroxypoly(oxypropylene))pyrophosphate, poly(methylenephenyleneisocyanate) copolymer, isocyanate terminated Isocyanic acid, polymethylenepolyphenylene ester, polymer with alpha,alpha'-(oxybis(butoxyphosphinylidene))bis(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))), isocyanate-terminated