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-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-1,2-ethanediyl)