Water and oil repellent having excellent desoiling properties

摘要

A water and oil repellent having excellent desoiling properties 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 and a hydrophilic molecular chain, and said terminal segments and intermediate segment being connected by a -CONH- linking group.