Patent ID: 7321018

Claim:
A dilutable, non-aqueous concentrate comprising a mixture of: (a) at least one fluorinated oligomeric silane of the formula A-M n f M m h M r a -G wherein: A is hydrogen or a residue of an initiating species; M f represents units derived from one or more fluorinated monomers M h represents units derived from one or more non-fluorinated monomers; M a represents units derived from one or more non-fluorinated monomers having a silyl group, SiY 3 where Y is a hydrolyzable silyl group; and G is a residue of a chain transfer agent of the formula —S-Q-Y 3 in which Y is a hydrolysable group and Q is an organic divalent linking group; n is an integer from 1 to 100; m is an integer from 0 to 100; and r is an integer from 0 to 100; and (b) at least one surfactant selected from dicocomethylammonium chloride, alkylenediolpolyethylene glycols, alkylphenol-polyethylene glycols, alkyleneoxy containing silicone oligomers and a mixture thereof.