FLUORINATED POLYMERS HAVING BISURETHANO SIDE CHAINS

摘要

Polymers of the formula IN WHICH Rf is perfluoroalkyl of six to 12 carbon atoms, n is an integer of 1 to 4, m is 0 or 1 and x is a number of about 10 to about 300, are useful as water- and oil-repellent agents for fibrous materials, especially materials consisting of or containing cotton or wool. The agents are used in aqueous dispersions or solutions in organic solvents.