SYSTEM PROVIDING ENZYME-CATALYSED REACTION Russian patent published in 2016 - IPC A61K8/22 A61K8/38 A61K8/66 A61Q11/02 

FIELD: cosmetology.

SUBSTANCE: group of inventions relates to dental whitening. Disclosed are a composition and oral care composition containing a dental whitening composition, consisting of multiple parts, where upon mixing contents of parts a peracid and/or dioxirane whitening agent is formed. Package of composition comprises a deformable material configured to form at least two sealed chambers separated by one or more partitions, which are fragile or ruptured, and device for opening, directed to provide a hole, through which mixture can be distributed. First chamber contains a liquid solution with low viscosity, including protein having perhydrolase activity. Second chamber comprises a carboxyl donor and a peroxide source, such that when applying force to package one or more partitions between chambers is damaged to an extent sufficient to allow liquid solution with low viscosity be mixed with peroxide source and carboxyl donor, as a result, protein having perhydrolase activity, catalyses reaction between peroxide, released by peroxide source and carboxyl donor with formation of peroxy acid. Peroxide source is a solid peroxide source chosen from urea peroxide, polymer complex of polyvinyl pyrrolidone with hydrogen peroxide, sodium percarbonate, sodium perborate and metal peroxide, where carboxyl donor is selected from a carboxylic acid and acetyl-containing compound.

EFFECT: design of package and multi-part composition provides fast and efficient mixing of ingredients at moment of use for dental whitening.

23 cl, 2 dwg, 7 tbl, 2 ex