Solid Cleansing Compositions with Taurine and Methods Thereof

Abstract

A solid liquid cleansing composition and methods of preparing the same are disclosed. The solid cleansing composition may include a soap and an ionic liquid. The soap may be a sodium soap, an ammonium soap, a potassium soap, a magnesium soap, a calcium soap, or a combination thereof. The ionic liquid may include a base, taurine, and/or water.

What is claimed is: 
     
         1 . A solid cleansing composition, comprising:
 a soap; and   an ionic liquid comprising:
 a base; and 
 taurine. 
   
     
     
         2 . The solid cleansing composition of  claim 1 , wherein the ionic liquid is an anhydrous ionic liquid having less than 0.5 wt % water based on a total weight of the ionic liquid. 
     
     
         3 . The solid cleansing composition of  claim 1 , wherein the ionic liquid further comprises water. 
     
     
         4 . The solid cleansing composition of  claim 3 , wherein the ionic liquid is a hydrated ionic liquid having greater than or equal to 0.5 wt % water based on a total weight of the ionic liquid. 
     
     
         5 . The solid cleansing composition of  claim 1 , wherein a molar ratio of the base to taurine is greater than or equal to 1:1. 
     
     
         6 . The solid cleansing composition of  claim 1 , wherein a molar ratio of the base to taurine is greater than 1:1 and less than or equal to 3:1. 
     
     
         7 . The solid cleansing composition of  claim 1 , wherein a molar ratio of the base to taurine is greater than 1:1 and less than or equal to 2.5:1. 
     
     
         8 . The solid cleansing composition of  claim 1 , wherein a molar ratio of the base to taurine is greater than 1:1 and less than or equal to 2:1. 
     
     
         9 . The solid cleansing composition of  claim 3 , wherein a molar ratio of taurine to water is greater than or equal to 1:1. 
     
     
         10 . The solid composition of  claim 3 , wherein a molar ratio of taurine to water is greater than 1:1 and less than or equal to 3:1. 
     
     
         11 . The solid composition of  claim 3 , wherein a molar ratio of taurine to water is greater than 1:1 and less than or equal to 2:1. 
     
     
         12 . The solid cleansing composition of  claim 1 , wherein the base is urea. 
     
     
         13 . The solid cleansing composition of  claim 1 , wherein the soap is a sodium soap, an ammonium soap, a potassium soap, a magnesium soap, a calcium soap, or a combination thereof. 
     
     
         14 . The solid cleansing composition of  claim 1 , wherein the soap comprises alkali metal salts of aliphatic acids having 8 to 22 carbon atoms. 
     
     
         15 . A method for preparing the solid cleansing composition of any one of the preceding claims, comprising:
 contacting the base with taurine;   heating the base and taurine to form the ionic liquid; and   contacting the ionic liquid with the soap.   
     
     
         16 . The method of  claim 15 , further comprising contacting the base with water to form a slurry before contacting the base with taurine. 
     
     
         17 . The method of  claim 16 , further comprising contacting the taurine with the slurry before heating the base and taurine. 
     
     
         18 . The method of  claim 15 , wherein heating the base and taurine comprises heating the base and taurine to a temperature greater than 80° C. 
     
     
         19 . The method of  claim 15 , further comprising melting the base before solubilizing taurine. 
     
     
         20 . A solid cleansing composition, comprising:
 a soap selected from the group consisting of a sodium soap, an ammonium soap, a potassium soap, a magnesium soap, a calcium soap, or a combination thereof; and   an ionic liquid comprising urea and taurine, wherein the ionic liquid is an anhydrous ionic liquid having less than 0.05 wt % water based on a total weight of the ionic liquid, and wherein a molar ratio of the urea to taurine is greater than 1:1 and less than or equal to 3:1.