Through the reaction of polyisocyanate with polyether alcohol, hydrophilic groups were introduced in polyisocyanate chains and a water dispersible polyisocyanate was prepared.

• 采用多异氰酸酯与亲水性聚醚多元醇反应,将含有亲水基团的物质引入到多异氰酸酯的分子结构中,制得可水分散性多异氰酸酯。