| http://www.w3.org/ns/prov#value | - In a preferred embodiment of the instant invention the total amount of the water-soluble anionic and cationic monomers is chosen in the range of from 40 to 100, preferably from 50 to 100% by weight and the amount of water-soluble polar nonionic monomers is chosen in the range of 60 to 0, preferably from 50 to 0% by weight, more preferably the polymer is not amphoteric, i.e. either anionic or anion
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