37383-28-1

1,4-Butanediol, polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 1,1-methylenebisisocyanatobenzene

1,4-Butanediol, polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 1,1-methylenebisisocyanatobenzene