Lubricating composition comprising an anti-knock compound

Abstract

The disclosure relates to the use of a lubricating composition including at least one base oil and at least one organic compound for reducing, or even eliminating, knocking in the engine of vehicles, preferably motor vehicles.

1 . A method for reducing knock in a vehicle engine, the method comprising bringing a mechanical part of the vehicle engine into contact with a lubricant composition comprising:
 at least one base oil;   at least one compound of formula (I):   
       
         
           
           
               
               
           
         
         wherein:
 X—Y represents: 
 
       
       
         
           
           
               
               
           
         
         
           R1 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR17 group, an —NR18R19 group; 
           R2 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR20 group, an —NR21 R22 group; 
           R3 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR23 group, an —NR24R25 group; 
           R4 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR26 group, an —NR27R28 group; 
           R5 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR29 group, an —NR3OR31 group; 
           R6 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR32 group, an —NR33R34 group; 
           R7 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR35 group, an —NR36R37 group; 
           R8 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR38 group, an —NR39R40 group; 
           R9 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR41 group, an —NR42R43 group; 
           R10 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR44 group, an —NR45R46 group; 
           R11 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR47 group, an —NR48R49 group; 
           R12 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR50 group, an —NR51 R52 group; 
           R13 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR53 group, an —NR54R55 group; 
           R14 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR56 group, an —NR57R58 group; 
           R15 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR59 group, an —NR6OR61 group; 
           R16 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR62 group, an —NR63R64 group; 
           R17, R20, R23, R26, R29, R32, R35, R38, R41, R44, R47, R50, R53, R56, R59 and R62, identical or different, represent independently a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms; and 
           R18, R19, R21, R22, R24, R25, R27, R28, R30, R31, R33, R34, R36, R37, R39, R40, R42, R43, R45, R46, R48, R49, R51, R52, R54, R55, R57, R58, R60, R61, R63 and R64, identical or different, represent independently a hydrogen atom or a saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 3 carbon atoms. 
         
       
     
     
         2 . The method according to  claim 1  wherein the lubricant composition comprises a compound of formula (Ia): 
       
         
           
           
               
               
           
         
       
     
     
         3 . The method according to  claim 2  wherein R5 and R6 represent a hydrogen atom. 
     
     
         4 . The method according to  claim 2  wherein R1, R2, R3 and R4 represent a hydrogen atom. 
     
     
         5 . The method according to  claim 1  wherein the lubricant composition comprises a compound of formula (Ib): 
       
         
           
           
               
               
           
         
       
     
     
         6 . The method according to  claim 5  wherein R7, R8, R9 and R10 represent a hydrogen atom. 
     
     
         7 . The method according to  claim 5  wherein R1, R2, R3 and R4 represent a hydrogen atom. 
     
     
         8 . The method according to  claim 1  wherein the lubricant composition comprises a compound of formula (Ic): 
       
         
           
           
               
               
           
         
       
     
     
         9 . The method according to  claim 8  wherein R15 and R16 represent a hydrogen atom. 
     
     
         10 . The method according to  claim 8  wherein R11, R12, R13 and R14 represent a hydrogen atom. 
     
     
         11 . The method according to  claim 8  wherein R1, R2, R3 and R4 represent a hydrogen atom. 
     
     
         12 . The method according to  claim 1  wherein the mass content of the compound of formula (I) ranges from 0.5 to 25% relative to the total mass of the lubricant composition. 
     
     
         13 . The method according to  claim 1 , wherein the lubricant composition further comprises at least one additive selected from detergents, friction modifiers, dispersants, anti-wear additives, extreme-pressure additives, antioxidants, viscosity index improver polymers, pour point depressants, anti-foaming agents, thickeners and mixtures thereof. 
     
     
         14 . A method for reducing knock in a vehicle engine, the method comprising:
 a) adding at least one base oil to an additive concentrate-type composition in order to obtain a lubricant composition;   b) bringing a mechanical part of the vehicle engine into contact with the lubricant composition, the additive concentrate-type composition comprising:   at least one compound of formula (I):   
       
         
           
           
               
               
           
         
         wherein:
 X—Y represents: 
 
       
       
         
           
           
               
               
           
         
         
           R1 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR17 group, an —NR18R19 group; 
           R2 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR20 group, an —NR21 R22 group; 
           R3 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR23 group, an —NR24R25 group; 
           R4 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR26 group, an —NR27R28 group; 
           R5 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR29 group, an —NR30R31 group; 
           R6 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR32 group, an —NR33R34 group; 
           R7 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR35 group, an —NR36R37 group; 
           R8 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR38 group, an —NR39R40 group; 
           R9 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR41 group, an —NR42R43 group; 
           R10 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR44 group, an —NR45R46 group; 
           R11 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR47 group, an —NR48R49 group; 
           R12 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR50 group, an —NR51 R52 group; 
           R13 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR53 group, an —NR54R55 group; 
           R14 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR56 group, an —NR57R58 group; 
           R15 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR59 group, an —NR6OR61 group; 
           R16 represents a hydrogen atom, a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms, an —OR62 group, an —NR63R64 group; 
           R17, R20, R23, R26, R29, R32, R35, R38, R41, R44, R47, R50, R53, R56, R59 and R62, identical or different, represent independently a linear or branched, saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 10 carbon atoms; 
           R18, R19, R21, R22, R24, R25, R27, R28, R30, R31, R33, R34, R36, R37, R39, R40, R42, R43, R45, R46, R48, R49, R51, R52, R54, R55, R57, R58, R60, R61, R63 and R64, identical or different, represent independently a hydrogen atom or a saturated or unsaturated, substituted or unsubstituted alkyl group comprising from 1 to 3 carbon atoms; and 
         
         at least one additive selected from detergents, friction modifiers, anti-wear additives, dispersants, extreme-pressure additives, antioxidants, viscosity index improver polymers, pour point depressants, anti-foaming agents, thickeners and mixtures thereof.