Composition, useful to treat keratin materials e.g. hair, comprises surfactants comprising non-siliconated anionic and/or nonionic surfactants, and ethylenic copolymer comprising e.g. substituted ethylene- and anionic monomer in medium
Cosmetic composition (A) comprises: in an aqueous medium, (i) at least 4 wt.% of one or more surfactants comprising non-siliconated anionic and/or nonionic surfactants； and (ii) at least one ethylenic copolymer comprising, (a) 65-95 wt.% of one or more substituted ethylene monomers (I), (b) 5-35 wt.% of at least one or more cationic monomers comprising substituted ethylene monomers (II), and (c) 0-30 wt.% of one or more anionic monomers comprising maleic anhydride and/or substituted ethylene monomer (III). Cosmetic composition (A) comprises: in an aqueous medium, (i) at least 4 wt.% of one or more surfactants comprising non-siliconated anionic and/or nonionic surfactants； and (ii) at least one ethylenic copolymer comprising, (a) 65-95 wt.% of one or more substituted ethylene monomers of formula (H 2C=CR1-Z-(R2) m-(CH 2-CH 2-O) n-R3) (I), (b) 5-35 wt.% of at least one or more cationic monomers comprising substituted ethylene monomers of formula (H 2C=CR1-(Z1a) x 1-(R2a) m 1-X) (II), and (c) 0-30 wt.% of one or more anionic monomers comprising maleic anhydride and/or substituted ethylene monomer of formula (H 2C=CR1-(Z1a) x 1-(R2a) m 1-Y1) (III). R1 : H or methyl； Z : a divalent group comprising -COO- or -CONH-； R3 : H or optionally aromatic, linear, branched or cyclic 1-30C carbon radical, optionally saturated and comprising 1-4 heteroatoms of O, N or S； Z1a : a divalent group comprising -COO-, CO or -CONH-； x1 : 0 or 1； R2a, R2 : optionally aromatic, linear, branched or cyclic 1-18C divalent carbon radical, optionally saturated and comprising 1-4 heteroatoms of O, N or S； m1 : 0 or 1； n : 75-700, preferably 100-200； X : group of formula (-NR6R7), or group of formula (-R6a-N-R7a-)； either R6, R7 : H, optionally aromatic and optionally saturated, linear, branched or cyclic 1-12C alkyl； or NR6R7, NR6aR7a : optionally aromatic and optionally saturated 5-7 membered ring comprising CH, CH 2, O, N, NH, S or CO； and Y1 : group comprising -COOH, -SO 3H, -OSO 3H, PO 3H 2or OP
