Patent ID: 8106129

Claim:
A block copolymer of composition ABA with ≦4 amine groups in the individual A blocks, wherein (i) block A, a copolymer comprising an amine-functionalized compound which is at least one monomer Selected from the group consisting of 2-dimethylaminoethyl methacrylate, 2-diethylaminoethyl methacrylate, 2-tert-butylaminoethyl methacrylate, 2-dimethylaminoethyl acrylate, 2-diethylaminoethyl acrylate, 2-tert-butylaminoethyl acrylate, 3-dimethylaminopropylmethacrylamide and 3-dimethylaminopropylacrylamide; and a monomers selected from the group of (meth)acrylates or mixtures thereof, and (ii) one block B, comprising a (meth)acrylates or mixtures thereof which have no additional functionality, are present in polymerized form as said ABA block copolymer.