Patents

Colgate Patents Tooth Whitener

US Patent No. 10,596,084 B2 contains core shell silica particles.

US Patent No. 10,596,084 B2 (Venda Maloney, Suman Chopra, Hallena Strotman, Guisheng Pan); Colgate-Palmolive Company has patented an oral care composition that contains an orally acceptable carrier vehicle that has a non-aqueous solvent and a non-covalent complex that has a blue to blue-violet color dye with a hue angle in the CIELAB system ranging from 200 to 320 degrees; and core shell silica particles (wherein each core shell silica particle comprises a silica core, and a surface of the silic...

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