Patent ID: 9040025
Filing Date: 2015-05-26
Classification: A61K,A61Q

Abstract:
1. An oral care composition, comprising: water soluble phosphate ester salts; at least one anti-caries agent selected from the group consisting of sodium fluoride and sodium monofluorophosphate, an abrasive agent, provided that the abrasive agent is not a calcium based abrasive agent, and a peroxide tooth whitening agent, wherein the composition has an absence of calcium compounds; wherein all water soluble phosphate ester salts of the composition consist of one or more water soluble phosphate monoester salts according to structure (I) and one or more water soluble phosphate diester salts according to structure (II), wherein the molar ratio of said one or more monoester salts to said one or more diester salts is from 70:30 to 92:8: wherein the phosphate monoester salt according to structure (I) has a phosphate head group of structure (IA) and a hydrophobic tail of structure (IB) wherein the dialkyl phosphate ester salt according to structure (II) has a phosphate head group of structure (IIA) and hydrophobic tails of structures (IIB) and (IIC) wherein: R n and m are each individually 2 to 4, a and b are each individually 0 to 20, one of Z Z wherein the phosphate head groups of the at least one monoalkyl water soluble phosphate ester salt and the at least one dialkyl water soluble phosphate ester salt are for anchoring to calcium hydroxyapatite tooth structure of a tooth, the hydrophobic tails for separating from the respective anchored phosphate head groups by hydrolysis, and the phosphate head groups after hydrolysis for being fixed in place in the calcium hydroxyapatite tooth structure by reaction with calcium in saliva of an oral cavity in which the tooth is located.