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US 10,500,142 B2Granted
Oral care compositions
AssigneeColgate-Palmolive Company
InventorsDaniel Schankel, Shiri Nawrocki, Viktor Dubovoy, Long Pan, Nihal Dogu
Life of this patent
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Abstract
Provided are aqueous soluble tin phosphate complexes formed from a mixture comprising tin (II) fluoride and a pyrophosphate salt and oral care compositions comprising the complexes and uses thereof.
Claims16
An oral care composition comprising an aqueous soluble tin phosphate complex formed from a mixture comprising tin (II) fluoride, and a pyrophosphate salt;
- wherein the complex comprises tin, phosphate and fluoride;
- and wherein the complex is formed from a mixture comprising the tin (II) fluoride and pyrophosphate salt in a molar ratio of 1P:1Sn to 10P:1Sn, and wherein the complex is present in an amount of 2 to 30 weight % by weight of the composition, wherein the complex is formed in situ in an aqueous solution and combined with an oral care base, or wherein the complex is isolated from the aqueous solution in solid form and combined with the oral care base, or wherein the complex is lyophilized and combined with the oral care base, or wherein the complex is isolated with an anti-solvent and combined with the composition.
Dependencies are inferred from the claim text.