Lubricating composition comprising glycerol monoethers

Abstract

Disclosed is a lubricating composition including: at least one base oil; and at least one glycerol monoether characterised in that one of the alcohol functions of the glycerol forms an ether function with a linear or branched, alkyl or alkylene R group including 6 or 7 carbon atoms, the composition being an engine lubricant.

1 - 9 . (canceled) 
     
     
         10 . A lubricating composition comprising:
 at least one base oil; and   at least one glycerol mono-ether, characterized in that one of the alcohol functions of glycerol forms an ether function with a linear or branched alkyl or alkylene group   R comprising 6 or 7 carbon atoms, the composition being an engine lubricant.   
     
     
         11 . The lubricating composition of  claim 10  comprising:
 at least one base oil; and 
 at least one glycerol mono-ether of formula (I) or (II), taken alone or as a mixture 
 
       
         
           
           
               
               
           
         
         in which R represents a linear or branched alkyl or alkylene group comprising 6 or 7 carbon atoms. 
       
     
     
         12 . The lubricating composition according to  claim 10  wherein R represents a linear or branched alkyl or alkylene group comprising 6 carbon atoms. 
     
     
         13 . The lubricating composition according to  claim 10  comprising from 0.01% to 5% by weight, of glycerol mono-ether. 
     
     
         14 . A method of lubricating an engine comprising the implementation of a lubricating composition according to  claim 10 . 
     
     
         15 . The method according to  claim 14  wherein the engine is a motor engine. 
     
     
         16 . The method for reducing the friction in an engine comprising the implementation of a lubricating composition according to  claim 10 . 
     
     
         17 . The method for reducing the fuel consumption of an engine comprising the implementation of a lubricating composition according to  claim 10 . 
     
     
         18 . The method for reducing friction in an engine comprising the implementation of a glycerol mono-ether as defined in  claim 10  in a lubricating composition of an engine. 
     
     
         19 . The method for reducing the fuel consumption of an engine comprising the implementation of a glycerol mono-ether as defined in  claim 10  in a lubricating composition of an engine. 
     
     
         20 . The lubricating composition according to  claim 11  comprising from 0.01 to 2% by weight of glycerol mono-ether of formula (I) or (II) taken alone or as a mixture. 
     
     
         21 . The lubricating composition according to  claim 10 , comprising from 0.1 to 1.5% by weight of glycerol mono-ether characterized in that one of the alcohol functions of glycerol forms an ether function with a linear or branched alkyl or alkylene group R, wherein R represents a linear or branched alkyl or alkylene group comprising 6 carbon atoms.