| abstract |
The present invention relates to copolymers comprising as comonomers in copolymerized formn (A) at least one ethylenically unsaturated mono- or dicarboxylic acid, (B) at least one ethylenically unsaturated compound which has at least one structural unit of the general formula (I) per molecule: nn nwhere the variables are defined as follows:n R 1 is different or identical and selected from hydrogen, C 1 -C 30 -alkyl, C 6 -C 30 -aryl and C 7 -C 30 -aralkyl, A 1 is different or identical and selected from C 2 -C 10 -alkylene, C 6 -C 10 -arylene and C 7 -C 10 -aralkylene, n is different or identical and selected from zero to 200, m is different or identical and selected from 1 to 6,n (C) at least one further comonomer. |