CORE-SHELL SILICA PARTICLES AND USE THEREOF FOR MALODOR REDUCTION Russian patent published in 2019 - IPC C01B33/18 C09C1/30 C09C3/06 A61Q11/02 A61K8/25 A61K8/27 C09K3/14 C08K3/36 

Abstract RU 2678664 C1

FIELD: hygiene.

SUBSTANCE: invention can be used in the manufacture of oral care compositions. Core-shell silica particles comprise a silica core, and a surface of the silica core is etched to form a metal silicate. Metal silicate is a monovalent metal ion and one or more of a bivalent metal ion, a trivalent metal ion and a tetravalent metal ion. Metal silicate includes Zn2+ silicate, monovalent ion is Na+ or K+.

EFFECT: invention makes it possible to impart antibacterial properties to a component comprising silica, which is present in oral care compositions as an abrasive, producing multifunctional oral care compositions with a minimum number of components.

19 cl, 4 dwg, 18 tbl, 22 ex

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RU 2 678 664 C1

Authors

Pan Guisheng

Chopra Suman

Dates

2019-01-30Published

2014-12-18Filed