英文名称:Hexanedioic acid polymer with 1,4-butanediol, 1,2-ethanediol, .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 1,1’-methylenebis(4-isocyanatobenzene); Hexanedioic acid polymer with 1,4-butanediol, 1,2-ethanediol, .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 1,1’-methylenebis(4-isocyanatobenzene)