Use of Esters as Coalescing Agent

Abstract

Esters of general formula R 1 —COOR 2 , where R 1 =9 to 23 C alkyl and R 2 =methyl, ethyl, n-propyl or i-propyl are suitable as coalescing agents, in particular for the production of all types of coating from an aqueous polymer or latex dispersion.

1 . The use of esters of the general formula (I),
   R 1 —COOR 2    (I)
   in which R 1  is an alkyl radical having 9 to 23 C atoms and R 2  is a saturated alkyl radical selected from the group of methyl, ethyl, n-propyl, and isopropyl,   as coalescents.   
     
     
         2 . The use as claimed in  claim 1 , wherein the radical R 1  is a saturated alkyl radical. 
     
     
         3 . The use as claimed in  claim 1 , wherein the radical R 1  is an alkyl radical which comprises a C═C double bond. 
     
     
         4 . The use as claimed in any of  claims 1  to  3  in the production of coatings of any kind based on aqueous polymer dispersions or latex dispersions. 
     
     
         5 . The use as claimed in  claim 4  in the production of coatings based on aqueous emulsion paints. 
     
     
         6 . The use of compositions comprising
 (1) one or more of the esters (I) of  claim 1  and   (2) one or more further compounds—different from the esters (I)—selected from the group of esters, ethers, and hydroxyesters   as coalescents.   
     
     
         7 . The use as claimed in  claim 6 , wherein the radical R 1  of the esters (I) is a saturated alkyl radical. 
     
     
         8 . The use as claimed in  claim 6 , wherein the radical R 1  of the esters (I) is an alkyl radical which comprises a C═C double bond. 
     
     
         9 . The use as claimed in any of  claims 6  to  8  in the production of coatings of any kind based on aqueous polymer dispersions or latex dispersions. 
     
     
         10 . The use as claimed in  claim 9  in the production of coatings based on aqueous emulsion paints. 
     
     
         11 . The use as claimed in any of  claims 1  to  10 , wherein the radical R 2  in formula (I) has the definition methyl. 
     
     
         12 . The use as claimed in any of  claims 1  to  10 , wherein the radical R 2  in formula (I) has the definition isopropyl.