英文名称:1,4-Benzenedicarboxylic acid polymer with 1,2-ethanediol, α-hydro- ω-hydroxypoly(oxy-1,4-butanediyl) and α-hydro-ω-hydroxypoly (oxy-1,2-ethanediyl); 1,4-Benzenedicarboxylic acid polymer with 1,2-ethanediol, α-hydro- ω-hydroxypoly(oxy-1,4-butanediyl) and α-hydro-ω-hydroxypoly (oxy-1,2-ethanediyl)