68541-43-5 Poly(oxy-1,4-butanediyl), alpha-hydro-omega-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene, alpha-hydro-omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)) and 1,1'-methylenebis(4-isocyanatobenzene) Toluene diisocyanate, methylenebis(4-phenylisocyanate), polypropylene glycol, poly(tetramethylene glycol) polymer