英文名称:1,4-Butanediol polymer with 1,3-diisocyanatomethylbenzene,α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl) and α-hydro-ω-hydroxypoly[oxy(methyl-1,2-ethanediyl)]; 1,4-Butanediol, polymer with 1,3-diisocyanatomethylbenzene,alpha-hydro-omega-hydroxypoly(oxy-1,4-butanediyl) and alpha-hydro-omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))