Patent ID: 7078454

Claim:
A fluorochemical treatment composition comprising 1) a fluorochemical urethane consisting of the reaction product of: a. an aliphatic polyisocyanate having three or more isocyanate groups; and b. a fluorochemical monofunctional compound of the formula R f -Q′-Z; wherein R f a perfluoroalkyl or perfluoroheteroalkyl group, Q′ is an organic linking group, and Z is an isocyanate-reactive functional group, and said fluorochemical is in an amount sufficient to react with at least about 50% of the available isocyanate groups; and c. a non-fluorinated aliphatic monofunctional compound; and 2) a fluoroalkyl (meth)acrylate/polyoxyalkylene (meth)acrylate copolymer.