Patent ID: 8846842

Claim:
A modified polylysine comprising a high-functionality highly branched polylysine produced by a process comprising reacting (A) a salt of lysine with at least one acid, (B) optionally, at least one amino acid other than lysine, (C) optionally, at least one dicarboxylic or polycarboxylic acid or copolymerizable derivatives thereof, and (D) optionally, at least one diamine, polyamine or copolymerizable derivatives thereof with one another in the presence of at least one catalyst, wherein said polylysine has a weight-average molecular weight M w of more than 10 000 Da and a gel content of not more than 20%, wherein said high-functionality highly branched polylysine has been reacted with at least one further compound selected from the group consisting of compounds comprising acid groups, compounds comprising isocyanate groups, compounds comprising keto groups, compounds comprising aldehyde groups, compounds comprising activated double bonds, polyalkylene oxides which are terminated with amino groups or acid groups and have a functionality of one, two or more, lactones, lactams, saturated or unsaturated long-chain carboxylic acids, amino-reactive derivatives of saturated or unsaturated long-chain carboxylic acids, aliphatic or aromatic isocyanates, trialkylsilyl halides, perfluoroalkyl halides, and perfluoroalkylcarboxylic acid.