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 . A coalescent composition comprising one or more esters of the general formula (I),
   R 1 —COOR 2    (I)   
     in which R 1  is an alkyl or alkenyl radical having 9 to 23 C atoms and R 2  is an alkyl radical selected from the group of methyl, ethyl, n-propyl, and isopropyl. 
   
   
       2 . The coalescent composition according to  claim 1 , wherein R 1  is an alkyl radical. 
   
   
       3 . The coalescent composition according to  claim 1 , wherein R 1  is an alkenyl radical. 
   
   
       4 - 5 . (canceled) 
   
   
       6 . The coalescent composition according to  claim 1  further comprising one or more compounds selected from the group consisting of esters, ethers, and hydroxyesters. 
   
   
       7 . The coalescent composition according to  claim 6 , wherein R 1  is an alkyl radical. 
   
   
       8 . The coalescent composition according to  claim 6 , wherein R 1  is an alkenyl radical. 
   
   
       9 - 10 . (canceled) 
   
   
       11 . The coalescent composition according to  claim 1 , wherein R 2  is methyl. 
   
   
       12 . The coalescent composition according to  claim 1 , wherein R 2  is isopropyl. 
   
   
       13 . A coating composition comprising esters of the general formula (I),
   R 1 —COOR 2    (I)   
     in which R 1  is an alkyl or alkenyl radical having 9 to 23 C atoms and R 2  is an alkyl radical selected from the group of methyl, ethyl, n-propyl, and isopropyl, wherein said coating composition is based on dispersions selected from the group consisting of aqueous polymer dispersions, aqueous later dispersions, and aqueous emulsion paints. 
   
   
       14 . The coating composition according to  claim 13 , wherein said coating composition is based on aqueous emulsion paints. 
   
   
       15 . The coating composition according to  claim 13  further comprising one or more compounds selected from the group consisting of esters, ethers, and hydroxyesters. 
   
   
       16 . The coating composition according to  claim 15 , wherein said coating composition is based on aqueous emulsion paints. 
   
   
       17 . The coating composition according to  claim 13 , wherein R 1  is a saturated alkyl radical. 
   
   
       18 . The coating composition according to  claim 13 , wherein R 1  is an unsaturated alkyl radical. 
   
   
       19 . The coating composition according to  claim 13 , wherein R 2  is methyl. 
   
   
       20 . The coating composition according to  claim 13 , wherein R 2  is isopropyl.