FIELD: chemistry.
SUBSTANCE: disclosed is a copolymer containing silicon groups, obtained via radical copolymerisation of at least one compound with radically polymerisable α,β-ethylene-unsaturated double bond and at least one ionogenic and/or ionic group per molecule; and at least one radically polymerisable cross-linked compound, which contains at least two α,β-ethylene-unsaturated double bonds per molecule in the presence of at least one organosilicon compound containing a polyether group and/or urethane(meth)acrylate, which contains siloxane groups. The copolymer has molar excess of anionogenic/anionic groups relative cationogenic/cationic groups. The invention also discloses a method of obtaining said copolymer and a cosmetic or pharmaceutical agent containing said copolymer.
EFFECT: powder can be easily added to thickening compositions and is suitable for modifying rheological characteristics of cosmetic and pharmaceutical compositions.
18 cl, 2 tbl, 90 ex
