Patent ID: 11890362
Assignee: COLGATE-PALMOLIVE COMPANY
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 15:
16. An oral care composition comprising:
a first metal silicate comprising sodium silicate;
an orally acceptable carrier; and
a core shell silica particle comprising:
a second metal silicate; and
a silica particle comprising a core having a surface,
wherein the surface of the silica core is etched with the second metal silicate, and wherein the second metal silicate comprises a silicate of a monovalent, or multivalent metal ion,

wherein the first metal silicate is not bound to the silica, and wherein the total amount of the first metal silicate and the second metal silicate is from about 0.5 wt. % to about 1.5 wt. %, and the oral care composition has a pH of 7.8 to 8.7, wherein the oral care composition is free of stannous fluorosilicate.