Colgate-Palmolive Company
Tooth whitening oral care product with core shell silica particles

Last updated:

Abstract:

The present invention provides a tooth whitening oral care composition comprising: (i) a dye having a blue to blue-violet color with a hue angle in the CIELAB system ranging from 200 to 320 degrees; (ii) core shell silica particles, wherein each core shell silica particle comprises a silica core, and a surface of the silica core is etched with metal silicate; (iii) an orally acceptable carrier vehicle comprising a non-aqueous solvent; and wherein the composition comprises water in an amount of from 3 weight % to 30 weight %.

Status:
Grant
Type:

Utility

Filling date:

19 Dec 2014

Issue date:

2 Aug 2022