Oral compositions

Abstract

An oral composition is described. The oral composition can include a solvent having water and a cosolvent chosen from lower alkyl alcohols and acetone; a basic copolymer having basic acrylate monomeric units, basic methacrylate monomeric units, or a combination thereof; no less than 0.5 wt-% of an acid buffering or neutralizing agent; and optionally an active agent. The oral composition can include from about 6° to about 15° wt % of water, from about 30° to about 80° wt % of the cosolvent, and from about 25 to about 55° wt-% of the basic copolymer. The basic copolymer can be dissolved in the oral composition, the oral composition is capable of forming a film on a surface when contacted with an aqueous solution; and the wt-% of each component is based on the total weight of the composition.

1 . An oral composition, comprising:
 a solvent comprising water and a cosolvent chosen from lower alkyl alcohols and acetone;   a basic copolymer comprising basic acrylate monomeric units, basic methacrylate monomeric units, or a combination thereof;   no less than 0.5 wt-% of an acid buffering or neutralizing agent; and   optionally an active agent;   wherein the oral composition comprises from about 6 to about 15 wt-% of water, from about 30 to about 80 wt-% of the cosolvent, and from about 25 to about 55 wt-% of the basic copolymer;   wherein the basic copolymer is dissolved in the oral composition;   wherein the oral composition is capable of forming a film on a surface when contacted with an aqueous solution; and   wherein the wt-% of each component is based on the total weight of the composition.   
     
     
         2 . The oral composition of  claim 1 , wherein the oral composition further comprises a neutral copolymer comprising neutral acrylate monomeric units, neutral methacrylate monomeric units, or a combination thereof. 
     
     
         3 . The oral composition of  claim 2  wherein the oral composition from about 0 to about 40 wt-% of the neutral copolymer. 
     
     
         4 . (canceled) 
     
     
         5 . The oral composition of  claim 1  wherein the basic copolymer is chosen from Eudragit E100 and other copolymer containing dimethylaminoethyl methacrylate for ionic crosslinking. 
     
     
         6 . The oral composition of  claim 1  wherein the molecular weight of the basic copolymer is from about 10,000 to about 100,000. 
     
     
         7 . The oral composition of  claim 1  wherein the oral composition is capable of forming the film in less than about 30 seconds after the oral composition is contacted with water. 
     
     
         8 . The oral composition of  claim 1  wherein the consistency of the oral composition is from about 45 to about 110. 
     
     
         9 . The oral composition of  claim 1  wherein the cosolvent is ethanol. 
     
     
         10 . The oral composition of  claim 1  wherein the solvent further comprises at least one additional component chosen from isopropanol, propylene glycol, glycerin, low molecular weight polyethylene glycol, ethylene glycol based ester alcohols, and combinations thereof. 
     
     
         11 . The oral composition of  claim 1  wherein the oral composition comprises from about 8 to about 12 wt-% of the water, and wherein the oral composition comprises from about 35 to 60 wt-% of the cosolvent. 
     
     
         12 . (canceled) 
     
     
         13 . The oral composition of  claim 1  wherein the acid buffering or neutralizing agent is selected from carbonates, bicarbonates, chlorides, hydroxides, dibasic citrates phosphates, sulfates , and combinations thereof, and wherein the acid buffering or neutralizing agent is selected from phosphate based buffers, hydrogen phosphate based buffers, dihydrogen phosphaste based buffers, carboxylates based buffers, carbonate based buffers, hydrogen carbonate buffers, and combinations thereof. 
     
     
         14 . (canceled) 
     
     
         15 . The oral composition of  claim 1  wherein the active agent is selected from whitening agents, anticaries agents, fluoride-delivery agents, anti-gingivitis agents, tartar control agents, antiplaque agents, periodontal actives, breath freshening agents, malodor control agents, tooth desensitizers, salivary stimulants, flavors, biofilm disruptors, antimicrobials, anesthetic agent, pain killers, stain removal agents, coloring agents, remineralization agents, calculus-softening agents, and combinations thereof, and wherein the active agent is a fluoride composition. 
     
     
         16 . (canceled) 
     
     
         17 . The oral composition of wherein the active agent provides a sustained fluoride release for at least 24 hours. 
     
     
         18 . The oral composition of any preceding claim,  claim 1  wherein the active agent comprises at least two different fluoride salts. 
     
     
         19 . The oral composition of  claim 1  wherein the active agent is chosen from sodium fluoride, strontium fluoride, calcium fluoride, zinc fluoride, calcium chloride, calcium nitrate, calcium phosphates, calcium hydrogen phosphate, calcium dihydrogen phosphate, and combinations thereof. 
     
     
         20 . The oral composition of  claim 1  wherein the film remains on at least 90% of the surface after brushing the surface for at least 5 strokes. 
     
     
         21 - 30 . (canceled) 
     
     
         31 . The oral composition of  claim 1 , wherein the acid buffering or neutralizing agent is a calcium salt. 
     
     
         32 . A method of sealing open dentin tubules, the method comprising:
 forming a coating on the open dentin tubules with the oral composition of  claim 1 .