FIELD: medicine, pharmaceutics.
SUBSTANCE: invention can be used as a rheology modifier for cosmetic hair compositions. There is applied an anionic or cationic ampholytic copolymer produced by sedimentation polymerisation with molar excess of anionogenic/anionic groups in relation to cationogenic/cationic groups, or molar excess of cationogenic/cationic groups in relation to anionogenic/anionic groups, of at least one compound with a radical polymerised α,β-ethylene unsaturated double linkage and of at least one anionogenic and/or anionic group in a molecule, at least one compound with radical polymerised α,β-ethylene unsaturated double linkage and at least one cationogenic and/or cationic group in a molecule, at least one radical polymerised cross-linking compound containing at least two α,β-ethylene unsaturated double linkages in a molecule, if necessary, with at least one organic silicon compound added containing a polyether group and/or radical polymerised double linkage. The molar excess of anionogenic/anionic groups in relation to cationogenic/cationic groups or cationogenic/cationic groups in relation to anionogenic/anionic groups in the ampholytic copolymer is at least 2.5:1.
EFFECT: required complex of cosmetic composition properties ensured, as well as enabled polymer solidification, preferentially, powdering to be easily introduced in thickening formulations.
21 cl, 3 tbl, 984 ex
