1,4-Butanediol, polymer with alpha-hydro-omega-hydroxypoly(oxy-1,2-ethanediylthio-1,2-ethanediyl) and 1,1'-methylenebis(4-isocyanatobenzene) 67845-87-8 Poly(oxy-1,2-ethanediylthio-1,2-ethanediyl), alpha-hydro-omega-hydroxy, polymer with 1,4-butanediol and 1,1'-methylenebis(4-isocyanatobenzene) Poly(oxy-1,2-ethanediylthio-1,2-ethanediyl), alpha-hydro-omega-hydroxy-, 1,4-butanediol, methylenebis(4-isocyanatobenzene) polymer