Oral Care Composition for Long-Lasting Peroxide Delivery

Abstract

A tooth whitening composition includes a hydrophobic copolymer, a hydrophilic whitening agent and a polar solvent.

What is claimed is: 
     
         1 . A tooth whitening composition comprising:
 a hydrophobic copolymer, wherein the hydrophobic copolymer is a film forming hydrophobic polymer selected from the group consisting of 2-propenoic acid, 2-methyl-, 2-methylpropyl ester, polymer with 2-propenoic acid and N-(1,1,3,3-tetramethylbutyl)-2-propenamide, Acrylates/Dimethylaminoethyl Methacrylate copolymer, or mixtures thereof;   a hydrophilic whitening agent, wherein the hydrophilic whitening agent is hydrogen peroxide; and   a polar solvent, wherein the polar solvent is ethanol; and   
       wherein the tooth whitening composition is in the form of a liquid flowable composition, a viscous liquid composition, or a gel. 
     
     
         2 . The tooth whitening composition of  claim 1 , wherein the hydrophobic copolymer is 2-propenoic acid, 2-methyl-, 2-methylpropyl ester, polymer with 2-propenoic acid and N-(1,1,3,3-tetramethylbutyl)-2-propenamide. 
     
     
         3 . The tooth whitening composition of  claim 1 , wherein the hydrophobic copolymer is present in an amount of from about 10% to about 20%, by weight. 
     
     
         4 . The tooth whitening composition of  claim 1 , wherein the hydrophobic copolymer is present in an amount of about 15%, by weight. 
     
     
         5 . The tooth whitening composition of  claim 1 , wherein the hydrogen peroxide is present in an amount of from about 0% to about 40%, by weight. 
     
     
         6 . The tooth whitening composition of  claim 1 , wherein the hydrogen peroxide is present in an amount of from about 0% to about 30%, by weight. 
     
     
         7 . The tooth whitening composition of  claim 1 , wherein the hydrogen peroxide is present in an amount from about 0.1% to about 20% by weight. 
     
     
         8 . The tooth whitening composition of  claim 1 , wherein the hydrogen peroxide is present in an amount of from about 0.3% to about 12% by weight. 
     
     
         9 . The tooth whitening composition of  claim 1 , wherein the hydrogen peroxide is present in an amount of about 6% by weight. 
     
     
         10 . The tooth whitening composition of  claim 1 , further comprising a fluoride ion source selected from stannous fluoride, sodium fluoride, potassium fluoride, sodium monofluorophosphate, sodium fluorosilicate, ammonium fluorosilicate, amine fluoride, and ammonium fluoride. 
     
     
         11 . The tooth whitening composition of  claim 10 , wherein the fluoride ion source is sodium fluoride. 
     
     
         12 . The tooth whitening composition of  claim 1 , wherein composition is an orally acceptable composition. 
     
     
         13 . The tooth whitening composition of  claim 1 , wherein the composition does not comprise a non-polar solvent. 
     
     
         14 . The tooth whitening composition of  claim 1 , wherein the composition does not comprise a suspension. 
     
     
         15 . The tooth whitening composition of  claim 1 , wherein the hydrophobic copolymer comprises a hydrophobic film-forming copolymer comprising functional groups configured to adhere to a tooth surface. 
     
     
         16 . A method of forming the tooth whitening composition of  claim 1 , consisting of:
 combining the hydrophobic copolymer, the hydrophilic whitening agent, and the polar solvent.   
     
     
         17 . A method for whitening a surface of a tooth comprising:
 contacting the surface of the tooth with the tooth whitening composition of  claim 1  for a duration of time sufficient to effect whitening of the surface of the tooth.   
     
     
         18 . The method of  claim 17 , wherein the contacting of the surface of the tooth with the tooth whitening composition comprises forming a hydrophobic film comprising the hydrophobic polymer and the whitening agent, and wherein the duration of time sufficient to effect whitening of the surface of the tooth comprises diffusing the whitening agent from the hydrophobic film to the tooth surface over a period of time comprising from about 5 minutes to about 12 hours. 
     
     
         19 . A tooth whitening composition consisting of:
 a hydrophobic copolymer, wherein the hydrophobic copolymer is a film forming hydrophobic polymer selected from the group consisting of 2-propenoic acid, 2-methyl-, 2-methylpropyl ester, polymer with 2-propenoic acid and N-(1,1,3,3-tetramethylbutyl)-2-propenamide, Acrylates/Dimethylaminoethyl Methacrylate copolymer,   Octylacrylamide/Acrylates/Butylaminoethyl Methacrylate Copolymer, or mixtures thereof;   a hydrophilic whitening agent, wherein the hydrophilic whitening agent is hydrogen peroxide; and   a polar solvent, wherein the polar solvent is ethanol; and   wherein the tooth whitening composition is in the form of a liquid flowable composition, a viscous liquid composition, or a gel.   
     
     
         20 . A tooth whitening composition consisting of:
 a hydrophobic copolymer, wherein the hydrophobic copolymer is 2-propenoic acid, 2-methyl-, 2-methylpropyl ester, polymer with 2-propenoic acid and N-(1,1,3,3-tetramethylbutyl)-2-propenamide,   a hydrophilic whitening agent, wherein the hydrophilic whitening agent is hydrogen peroxide; and   a polar solvent, wherein the polar solvent is ethanol.