Fluorochemical allophanates containing one or more monovalent fluoroaliphatic radicals having at least three fully fluorinated terminal carbon atoms and one or more allophanate moieties, the radicals and moieties bonded together by hetero atom-containing or organic linking groups are provided. These fluorochemical allophanates are useful in the form of aqueous dispersions or emulsions or organic solutions in the treatment of fibrous substrates, such as textile fibers, to impart oil and water repellency.
本发明提供了含有一个或多个一价
氟脂肪族自由基(至少有三个
全氟化的末端碳原子)和一个或多个异链烷酸分子的
氟化异链烷酸酯,自由基和分子通过含杂原子或有机连接基团结合在一起。 这些
氟化异链烷酸酯可以
水分散体或乳液或有机溶液的形式用于处理纤维基质(如纺织纤维),以赋予其拒油拒
水性能。