| abstract |
The invention relates to water-soluble or water-swellable copolymers which can be obtained by radical copolymerisation of A) acryloyldimethyltaurine acid and/or acryloyldimethyltaurates, B) optionally, one or more additional olefinically unsaturated, optionally cross-linking, comonomers which have at least one oxygen, nitrogen, sulphur or phosphorus atom and which have a molecular weight of less than 500 g/mol and C) one or more at least monofunctional component which is capable of radical polymerisation and which contains fluorine, D) the copolymerisation optionally taking place in the presence of at least one polymeric additive with number average molecular weights of 200 g/mol to 10<9> g/mol. |