Emulsifier for Lubricating Oil Concentrate

Abstract

The present disclosure provides a lubricating oil concentrate containing an ethoxylated ether amine and a base oil. The lubricating oil concentrate is capable of forming a stable, low foaming emulsion when added to an aqueous medium and may be useful in metalworking and cleaning fluids.

What is claimed is: 
     
         1 . A water-miscible lubricating oil concentrate comprising (i) an ethoxylated ether amine having the formula (I) 
       
         
           
           
               
               
           
         
         where R=a straight chain or branched alkyl group having from 8 to 22 carbon atoms; 
         n=an integer from 2 to 30; 
         x=an integer from 1 to 29; and 
         y=an integer from 1 to 30; and 
         (ii) a base oil 
       
     
     
         2 . The water-miscible lubricating oil concentrate of  claim 1 , wherein R=a straight chain or branched alkyl group having from 12 to 16 carbon atoms. 
     
     
         3 . The water-miscible lubricating oil concentrate of  claim 1 , wherein y=an integer from 2 to 6. 
     
     
         4 . The water-miscible lubricating oil concentrate of  claim 1 , wherein n=an integer from 5 to 20 and x=an integer from 4 to 19. 
     
     
         5 . The water-miscible lubricating oil concentrate of  claim 1 , wherein the base oil is a petroleum-based oil. 
     
     
         6 . The water-miscible lubricating oil concentrate of  claim 5 , wherein the petroleum-based oil is selected from naphthalenic oil, paraffinic oil, crude oil, diesel oil, mineral seal oil, kerosene, fuel oil, white oil and aromatic oil. 
     
     
         7 . The water-miscible lubricating oil concentrate of  claim 1 , further comprising additives. 
     
     
         8 . A method of preparing a water-miscible lubricating oil concentrate comprising admixing an ethoxylated ether amine having the formula (I) 
       
         
           
           
               
               
           
         
         where R=a straight chain or branched alkyl group having from 8 to 22 carbon atoms; 
         n=an integer from 2 to 30; 
         x=an integer from 1 to 29; and 
         y=an integer from 1 to 30 with a base oil 
       
     
     
         9 . A stable, low foaming aqueous emulsion comprising the water-miscible lubricating oil concentrate of  claim 1  and water. 
     
     
         10 . A metalworking or cleaning fluid comprising an aqueous emulsion wherein the aqueous emulsion comprises an oil phase dispersed in a continuous aqueous medium, the oil phase comprising the lubricating oil concentrate of  claim 1  and the aqueous medium comprising water.