英文名称:1,3-Cyclohexanediamine, polymer with 1,2-ethanediamine,alpha-hydro-omega-hydroxypoly(oxy-1,4-butanediyl) and 1,1-methylenebis(4-isocyanatobenzene); 1,3-Cyclohexanediamine, polymer with 1,2-ethanediamine, α-hydro-ω-hydroxypoly( oxy-1,4-butanediyl) and 1,1’-methylenebis[4-isocyanatobenzene]