Oral Care Compositions Comprising Medium Length Polyphosphates

Abstract

A dentifrice composition includes about 20% or greater, by weight of the dentifrice composition, of water, a fluoride ion source, a polyphosphate source comprising a first linear polyphosphate with an average chain length of from about 6 to about 21, and a pH of about 5 or less.

What is claimed is: 
     
         1 . A dentifrice composition comprising:
 (a) about 20% or greater, by weight of the dentifrice composition, of water;   (b) a fluoride ion source;   (c) a polyphosphate source comprising a first linear polyphosphate with an average chain length of from about 6 to about 21; and   (d) a pH of about 5 or less.   
     
     
         2 . The dentifrice composition of  claim 1 , wherein the polyphosphate source further comprises a second linear polyphosphate with an average chain length of from about 2 to about 6. 
     
     
         3 . The dentifrice composition of  claim 2 , wherein the dentifrice composition has a ratio of the first linear polyphosphate to the second linear polyphosphate is from about 6:1 to about 1:1. 
     
     
         4 . The dentifrice composition of  claim 2 , wherein the ratio of the first linear polyphosphate to the second linear polyphosphate source is from 4:1 to 1:1. 
     
     
         5 . The dentifrice composition of  claim 2 , wherein the dentifrice composition comprises from about 2% to about 12%, by weight of the dentifrice composition, of the polyphosphate source. 
     
     
         6 . The dentifrice composition of  claim 2 , wherein the second linear polyphosphate comprises a pyrophosphate ion, a tripolyphosphate ion, or sodaphos polyphosphate ion. 
     
     
         7 . The dentifrice composition of  claim 2 , wherein the second linear polyphosphate comprises pyrophosphate. 
     
     
         8 . The dentifrice composition of  claim 1 , wherein the dentifrice composition is free of a peroxide, oxidizer, or an enzyme. 
     
     
         9 . The dentifrice composition of  claim 1 , wherein the dentifrice composition is free of calcium pyrophosphate. 
     
     
         10 . The dentifrice composition of  claim 1  further comprising polyvinylpyrrolidone. 
     
     
         11 . The dentifrice composition of  claim 1 , wherein the first linear polyphosphate has an average chain length of from about 8 to about 14. 
     
     
         12 . The dentifrice composition of  claim 1 , wherein the dentifrice composition has a ΔE value of about 3 or less. 
     
     
         13 . The dentifrice composition of  claim 1 , wherein the fluoride ion source is sodium monofluorophosphate.