Composition Comprising Choline Hydroxide And Process For Preparing The same

Abstract

The present invention relates to a composition comprising choline hydroxide, a solvent, and one or more stabilizers selected from the group consisting of a hydride and choline sulfite.

1 . Composition comprising choline hydroxide, a solvent, and one or more stabilizers selected from the group consisting of a hydride and choline sulfite.  
   
   
       2 . A composition according to  claim 1  wherein the stabilizer is an alkali metal borohydride salt.  
   
   
       3 . A composition according to  claim 1  wherein the amount of choline hydroxide is 10-60 wt % based on the total weight of the composition.  
   
   
       4 . A composition according to  claim 1  wherein the amount of stabilizer is between 1 and 500 ppm.  
   
   
       5 . A composition according to  claim 1 , further comprising one or more additional stabilizing compounds.  
   
   
       6 . A masterbatch comprising 10 to 60 wt % choline hydroxide, 5 to 20 wt % of one or more stabilizers selected from the group consisting of a hydride and choline sulfite, and the remaining part being solvent, based on the total weight of choline hydroxide, stabilizer and solvent.  
   
   
       7 . A process for preparing the composition according to  claim 1  by combining one or more stabilizers selected from the group consisting of a hydride and choline sulfite, with a choline hydroxide solution.  
   
   
       8 . A process for preparing the composition according to  claim 1  comprising the steps of reacting ethylene oxide with trimethylamine in the presence of one or more stabilizers selected from the group consisting of a hydride and choline sulfite, said stabilizer being added to the ethylene oxide, the trimethylamine and/or the reaction mixture.  
   
   
       9 . A process according to  claim 7  wherein the stabilizer is an alkali metal borohydride salt.  
   
   
       10 . A process according to  claim 7 , further comprising the step of utilizing the composition in the production of paper.  
   
   
       11 . A composition according to  claim 1  wherein the stabilizer is a sodium borohydride salt.  
   
   
       12 . A composition according to  claim 1  wherein the amount of choline hydroxide is 40-50 wt % based on the total weight of the composition.  
   
   
       13 . A composition according to  claim 1  wherein the amount of stabilizer is between 50 and 200 ppm.  
   
   
       14 . A composition according to  claim 5  wherein the one or more additional stabilizing compound is sodium sulfite.  
   
   
       15 . A process according to  claim 7  wherein the stabilizer is a sodium borohydride salt.  
   
   
       16 . A process according to  claim 8  wherein the stabilizer is an alkali metal borohydride salt.  
   
   
       17 . A process according to  claim 8  wherein the stabilizer is a sodium borohydride salt.