Fluorochemical composition and use thereof

摘要

The instant invention relates to the Fluorochemical composition comprising a dispersion or a solution of a fluorinated compound, wherein said fluorinated compound comprises the reaction product of at least two reactants A and B wherein reactant A being a compound of formula (I);
Rf—O—(CF(CF3)CF2O)mCF(CF3)—X—Y—Z  (I)
with
Rf being a perfluorinated alkyl group,m being from 3 to 25;X being a carbonyl group or CH2;Y being a chemical bond or an organic divalent or trivalent linking group bearing a functional or difunctional isocyanate reactive group;Z being an organic group bearing at least one cationic group,

reactant B being a polyfunctional isocyanate or a mixture thereof

and optionally one or more isocyanate-reactive co-reactants C.

主权项

1. Fluorochemical composition comprising a dispersion and/or a solution of a fluorinated compound, wherein said fluorinated compound comprises a reaction product of at least two reactants A and B wherein reactant A being a compound of formula (I);
Rf—O—(CF(CF3)CF2O)mCF(CF3)—X—Y—Z  (I)with
Rf being a perfluorinated alkyl group, m being from 3 to 25; X being a carbonyl group or CH2; Y being an organic divalent or trivalent linking group bearing a functional or difunctional isocyanate reactive group; Z being an organic group bearing at least one cationic group,reactant B being a polyfunctional isocyanate or a mixture thereofand optionally one or more isocyanate-reactive co-reactants C.