The new sealed ployurethanes were prepared from toluene diisocyanate(TDI),new sealing agent glycol monoethyl ether(GME)and hydroxyl terminated polyether with no solvent.

• 以甲苯二异氰酸酯和聚醚多元醇为原料,以乙二醇单乙醚为封闭剂,采用无溶剂法制备了无溶剂封闭型聚氨酯树脂。