Efficient coalescing agents

Abstract

A coalescent composition for coating compositions such as paints, adhesives, and coatings comprising a blend of diesters, the blend comprising adducts of alcohol and diacids, the alcohol selected from the group consisting of ethyl, propyl, isopropyl alcohol and mixtures thereof, and the diacids comprising a blend of adipic, glutaric and succinic diacids (“AGS”); and paint, adhesive, and coating compositions comprising such coalescent compositions are disclosed.

1 . A coalescent agent composition comprising a blend of diesters, the blend comprising adducts of alcohol and-diacids, the alcohol selected from the group consisting of ethyl, propyl, isopropyl alcohol, and mixtures thereof, and a blend of adipic, glutaric and succinic diacids (“AGS”). 
     
     
         2 . The composition of  claim 1  wherein the adducts have a formula:
   R 1 —OOC-A-COO—R 2      
       wherein R 1  and R 2  are independently selected from ethyl, propyl, and isopropyl and A is a mixture of adipic, glutaric, and succinic diacids. 
     
     
         3 . The coalescent agent composition of  claim 1  wherein the composition is derived from one or more by-products in the production of adipic acid. 
     
     
         4 . The coalescent agent composition of  claim 1  comprising a blend of esters, the blend comprising:
 about 20-28%, by weight of the blend, a diester of the formula:   
       
         
           
           
               
               
           
         
         about 59-67%, by weight of the blend, a diester of the formula: 
       
       
         
           
           
               
               
           
         
       
       and
 about 9-17%, by weight of the blend, a diester of the formula: 
 
       
         
           
           
               
               
           
         
       
     
     
         5 . (canceled) 
     
     
         6 . Paint, adhesive, inks, and coating compositions comprising the coalescent composition of  claim 1 . 
     
     
         7 . Paints, adhesive, inks, and coating compositions formed from a composition according to  claim 4 .