68309-89-7 Cellulose, 2-hydroxypropyl ether, polymer with 1,3-diisocyanatomethylbenzene, alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))) and N,N',2-tris(6-isocyanatohexyl)imidodicarbonic diamide