US2004186029A1PendingUtilityA1

Nail polish remover

56
Priority: Mar 19, 2003Filed: Mar 19, 2003Published: Sep 23, 2004
Est. expiryMar 19, 2023(expired)· nominal 20-yr term from priority
Inventors:Gary Fujii
A61K 8/4906A61Q 3/04A61K 8/4973
56
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A nail polish remover and methods of removing nail polish are provided, where the nail polish remover includes a mixture of at least two heterocyclic solvents having a carbonyl group. A thickening agent may be included.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A nail polish remover comprising an effective amount of a mixture of at least two heterocyclic solvents, each having a carbonyl moiety.  
     
     
         2 . The nail polish remover of  claim 1 , wherein the mixture comprises from about 25% v/v N-methyl pyrrolidinone (NMP) to about 75% v/v NMP and from about 25% v/v butyrolactone (BLO) to about 75% v/v BLO.  
     
     
         3 . The nail polish remover of  claim 2 , comprising about 75% v/v NMP and about 25% v/v BLO.  
     
     
         4 . The nail polish remover of  claim 1 , wherein the mixture comprises from about 25% v/v NMP to about 75% v/v NMP and from about 25% v/v ethylene carbonate (EC) to about 75% v/v EC.  
     
     
         5 . The nail polish remover of  claim 4 , comprising about 50% v/v NMP and about 50% v/v EC.  
     
     
         6 . The nail polish remover of  claim 1 , wherein the mixture comprises from about 25% v/v NMP to about 75% v/v NMP, and from about 25% v/v BLO to about 75% v/v BLO, and from about 25% v/v EC to about 75% v/v EC.  
     
     
         7 . The nail polish remover of  claim 6 , comprising about 50% v/v NMP, about 25% v/v BLO, and about 25% v/v EC.  
     
     
         8 . The nail polish remover of  claim 1 , further comprising a thickening agent at a concentration of between about 0.1% w/v to about 5.0% w/v.  
     
     
         9 . The nail polish remover of  claim 8 , wherein the thickening agent is selected from the group consisting of carbopols and methylcelluloses.  
     
     
         10 . The nail polish remover of  claim 9 , wherein the thickening agent is methylcellulose at a concentration of about 0.25% w/v.  
     
     
         11 . A method of removing nail polish from a surface, comprising: 
 a) applying a nail polish remover to the surface, the nail polish remover comprising an effective amount of a mixture of at least two heterocyclic solvents, each having a carbonyl moiety;    (b) allowing the fingernail polish remover to solubilize the nail polish; and    (c) removing the solubilized nail polish from the surface.    
     
     
         12 . The method of  claim 11 , wherein the surface is a fingernail or a toenail.  
     
     
         13 . The method of  claim 11 , wherein the heterocyclic solvents are selected from the group consisting of pyrrolidinones, lactones, oxazolidinones, piperidones, hydantoin, cyclic carbonates, and cyclic ureas.  
     
     
         14 . The method of  claim 11 , wherein the heterocyclic solvents are selected from the group consisting of N-methyl pyrrolidinone (NMP), butyrolactone (BLO), and ethylene carbonate (EC).  
     
     
         15 . The method of  claim 14 , wherein the nail polish remover comprises from about 25% v/v NMP to about 75% v/v NMP and from about 25% v/v BLO to about 75% v/v BLO.  
     
     
         16 . The method of  claim 15 , wherein the nail polish remover comprises about 75% v/v NMP and about 25% v/v BLO.  
     
     
         17 . The method of  claim 14 , wherein the nail polish remover comprises from about 25% v/v NMP to about 75% v/v NMP and from about 25% v/v EC to about 75% v/v EC.  
     
     
         18 . The method of  claim 17 , wherein the nail polish remover comprises about 50% v/v NMP and about 50% v/v EC.  
     
     
         19 . The method of  claim 14 , wherein the nail polish remover comprises from about 25% v/v NMP to about 75% v/v NMP, from about 25% v/v BLO to about 75% v/v BLO, and from about 25% v/v EC to about 75% v/v EC.  
     
     
         20 . The method of  claim 19 , wherein the nail polish remover comprises about 50% v/v NMP, about 25% v/v BLO, and about 25% v/v EC.  
     
     
         21 . The method of  claim 11 , wherein the nail polish remover further comprises a thickening agent at a concentration of between about 0.1% w/v to about 5.0% w/v.  
     
     
         22 . The method of  claim 21 , wherein the thickening agent is selected from the group consisting of carbopols and methylcelluloses.  
     
     
         23 . The method of  claim 22 , wherein the thickening agent is methylcellulose at a concentration of about 0.25% w/v.

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