COMPOSITIONS FOR ORAL CARE Russian patent published in 2020 - IPC A61K8/24 A61K8/03 A61K8/44 A61K8/81 A61K8/86 A61Q11/00 

FIELD: hygiene.

SUBSTANCE: invention refers to oral care. Composition contains an aqueous solution of an acidic polymer which contains a combination of copolymers in ratio from 1:4 to 4:1 of maleic anhydride or maleic acid with another ethylenically unsaturated monomer capable of polymerisation, and copolymerised products of a mixture of acrylic acid, methacrylic acid and 2-hydroxyethyl methacrylate-phosphates; a non-ionic polymer selected from polyethylene glycols, polypropylene glycols, poloxamers and random copolymers of polyethylene glycol and polypropylene glycol and mixtures thereof; effective amount of a cationic active agent selected from quaternary ammonium surfactants, bis-guanides, cationic amino acids, metal cations and combinations thereof; a compound which is a polyamine containing lysine in free form or salt form in amount of 1–5 wt. % by weight of the entire composition; and the balance is water; where the solution contains two separate aqueous phases, characterized by different composition and density, where the compound, which is a polyamine, reacts with an acid polymer to form one aqueous phase, wherein the non-ionic polymer is separated to form a second aqueous phase.

EFFECT: invention ensures delivery of poorly compatible ingredients.

12 cl, 4 tbl, 5 ex