| abstract |
water-soluble copolymer the invention relates to a water-soluble copolymer comprising, in weight percent, relative to the total weight of the copolymer: between 1 and 40 of at least one cationic monomer; between 59.99 and 98 of at least one nonionic monomer; and between 0.01 and 10 of at least one monomer of formula (i) wherein: r1 is a hydrogen atom or a methyl radical; z is a divalent group -c (= o) -o-, or -c (= o) -nh-; -n is an integer between 2 and 200; r2 is a hydrogen atom or a carbonated radical that is saturated or unsaturated and, optionally aromatic, linear, branched or cyclic, comprising between 1 and 30 carbon atoms, and between 0 and 4 hetero atoms selected from the group comprising o, n and s; the copolymer comprising a cationic charge density between 0.05 and 3 meq / g. |