| abstract |
The present invention relates to a composition, comprising a binder resin, a block copolymer which comprises at least a block A and a block B, wherein the block A comprises monomer units derived from a compound selected from (meth)acrylic acid, a (meth)acrylic acid ester, a (meth)acrylamide, a vinyl aromatic compound, or any mixture thereof, the block B comprises monomer units derived from a compound selected from a fluorinated (meth)acrylic ester having the following formula (I): H 2 C═C(R 1 )(C(0)OR F-1 ), wherein R1 is H or methyl; and R F-1 is an organic residue containing a perfluorinated C 4-6 alkyl group, a fluorinated alpha-olefin having the following formula (II): H 2 C═CH(R F-2 ) (II) wherein R F-2 is an organic residue containing a perfluorinated C 4-6 alkyl group, i.e. —(CF 2 ) 3-5 —CF 3 or any mixture thereof. |