A high performance water and oil repellant composed of a compound comprising at least two terminal segments and an intermediate segment connecting the terminal segments and having a molecular weight of from 800 to 20,000, each terminal segment containing at least one polyfluoroalkyl group connected by a -CONH-linking group, said intermediate segment being a urethane oligomer containing at least two -CONH-linking groups in one molecule, and said terminal segments and intermediate segment being connected by a -CONH-linking group.
一种高性能防
水防油剂,由一种化合物组成,该化合物包含至少两个末端区段和连接末端区段的中间区段,分子量在 800 到 20,000 之间,每个末端区段包含至少一个由-CONH-连接基团连接的多氟烷基,所述中间区段是一个聚
氨酯低聚物,在一个分子中包含至少两个-CONH-连接基团,所述末端区段和中间区段由-CONH-连接基团连接。