abstract |
The present invention relates to a fluorochemical composition comprising a dispersion or solution of a fluorinated compound comprising a reaction product of at least two reactants A and B and optionally one or more isocyanate-reactive co-reactants C. Wherein reactant A is of formula (I), -O- R f (CF (CF 3 ) CF 2 O) m CF (CF 3) -X-Y-Z (I) Wherein R f is a perfluorinated alkyl group, m is 3 to 25, X is a carbonyl group or CH 2 , and Y is a chemical bond, or a functional or bifunctional isocyanate. A fluorochemical, which is an organic divalent linking group or an organic trivalent linking group having a reactive group, Z is an organic group having at least one cationic group, and the reactant B is a polyfunctional isocyanate or a mixture thereof Relates to the composition. |