Patent ID: 8324324

Claim:
A composition comprising (a) at least one curable oligomeric or polymeric polysilazane comprising at least one chemically reactive site selected from silicon-nitrogen bonds, silicon-hydrogen bonds, carbon-carbon double bonds, nitrogen-hydrogen bonds, and combinations thereof; and (b) at least one fluorochemical compound comprising (1) at least one organofluorine or heteroorganofluorine moiety, and (2) at least one functional group that is capable of reacting with said curable oligomeric or polymeric polysilazane through at least one said chemically reactive site; wherein said fluorochemical compound is one of a class that is represented by the following general formula: R f —(Y—X) v wherein R f is a monovalent or multivalent linear, branched, alicyclic, or aromatic, fluorinated or perfluorinated, organic or heteroorganic group or a combination thereof; each Y is independently a covalent bond or a divalent linear, branched, alicyclic, or aromatic, organic or heteroorganic linking group or a combination thereof; each X is independently an electrophilic or nucleophilic group selected from isocyanato, isothiocyanato, epoxide, amino, oxazolino, mercapto, vinyl, and combinations thereof; and v is a positive integer that equals the valency of R f .