US2008280794A1PendingUtilityA1

Compositions comprising at least one friction modifying compound, and methods of use thereof

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Assignee: HEWETTE CHIPPriority: May 9, 2007Filed: May 6, 2008Published: Nov 13, 2008
Est. expiryMay 9, 2027(~0.8 yrs left)· nominal 20-yr term from priority
Inventors:Chip HewetteDavid J. DegoniaRonald PhillipsRoger M. Sheets
C10N 2040/04C10M 2215/04C10M 2223/047C10M 137/105C10M 137/04C10M 2203/1006C10N 2070/02C10M 133/06C10M 2207/126C10M 2223/04C10M 2205/0285C10N 2030/06C10M 171/00C10M 169/04
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Claims

Abstract

There is disclosed a lubricant composition comprising at least one anionic compound; and at least one cationic compound, wherein at least one of the anionic compound and the cationic compound is a friction modifier; and wherein the composition has (i) a temperature roll over difference of about 27° F. or greater, and (ii) a passing High Temperature L-37 score.

Claims

exact text as granted — not AI-modified
1 . A lubricant composition comprising:
 at least one anionic compound; and   at least one cationic compound;   wherein at least one of the anionic compound and the cationic compound is a friction modifier; and   wherein the composition has (i) a temperature roll over difference of about 27° F. or greater, and (ii) a passing High Temperature L-37 score.   
     
     
         2 . The composition of  claim 1 , wherein the composition comprises at least one friction modifying anionic compound comprising from about 10 to about 30 carbon atoms and at least one cationic compound. 
     
     
         3 . The composition of  claim 1 , wherein the composition comprises at least one anionic compound and at least one friction modifying cationic compound comprising from about 10 to about 30 carbon atoms. 
     
     
         4 . The composition of  claim 1 , wherein the composition comprises at least one friction modifying anionic compound comprising from about 10 to about 30 carbon atoms and at least one friction modifying cationic compound comprising from about 10 to about 30 carbon atoms. 
     
     
         5 . The composition of  claim 1 , wherein the wherein the anionic compound is present in the composition in an amount ranging from about 0.05 wt. % to about 1.0 wt. %, relative to the total weight of the composition. 
     
     
         6 . The composition of  claim 1 , wherein the cationic compound is present in the composition in an amount ranging from about 0.05 wt. % to about 1.0 wt. %, relative to the total weight of the composition. 
     
     
         7 . The composition of  claim 1 , wherein the anionic compound is selected from the group consisting of a conjugate base of an organic carboxylic acid, organic phosphorus acid, organic sulfonic acid, inorganic phosphorus acid, and mixtures thereof. 
     
     
         8 . The composition of  claim 7 , wherein the organic carboxylic acid is linear or branched, saturated or unsaturated, and comprises from about 10 to about 30 carbon atoms. 
     
     
         9 . The composition of  claim 7 , wherein the organic carboxylic acid is aliphatic. 
     
     
         10 . The composition of  claim 7 , wherein the organic phosphorus acid is selected from the group consisting of dialkyl phosphorus acid, monoalkyl phosphorus acid, dialkyl dithiophosphorus acid, dialkyl thiophosphorus acid, and mixtures thereof. 
     
     
         11 . The composition of  claim 7 , wherein the organic phosphorus acid is selected from the group consisting of amyl acid phosphate, diamyl phosphate, 2-ethylhexyl acid phosphate, di-2-ethylhexyl acid phosphate, dialkyl dithiophosphoric acid, and mixtures thereof. 
     
     
         12 . The composition of  claim 1 , wherein the anionic compound is selected from the group consisting of octenoic acid, oleic acid, isostearic acid, steric acid, and mixtures thereof. 
     
     
         13 . The composition of  claim 1 , wherein the cationic compound is selected from the group consisting of conjugate acids of primary, secondary, and tertiary amines. 
     
     
         14 . The composition of  claim 13 , wherein the amine is linear or branched, saturated or unsaturated and comprises from about 10 to about 30 carbon atoms. 
     
     
         15 . The composition of  claim 13 , wherein the amine is a tertiary alkyl primary amine and comprises from about 8 to about 24 carbon atoms. 
     
     
         16 . The composition of  claim 13 , wherein the amine is a primary amine comprising olefinic unsaturation. 
     
     
         17 . The composition of  claim 1 , wherein the composition is a top treat. 
     
     
         18 . The composition of  claim 1 , further comprising a base oil. 
     
     
         19 . The composition of  claim 18 , wherein the composition is a lubricant composition. 
     
     
         20 . The composition of  claim 18 , wherein the base oil is mineral, synthetic, and a mixture thereof. 
     
     
         21 . The composition of  claim 18 , wherein the base oil is a polyalphaolefin. 
     
     
         22 . The composition of  claim 18 , wherein the base oil is a partial mineral oil. 
     
     
         23 . The composition of  claim 18 , wherein the base oil is gas-to-liquid oil. 
     
     
         24 . The composition of  claim 19 , wherein the anionic compound and the cationic compound form a salt that is present in the lubricant composition in an amount ranging from about 0.1 wt. % to about 1.5 wt. % relative to the total weight of the lubricant composition. 
     
     
         25 . A method of making a composition comprising:
 providing at least one anionic compound and at least one cationic compound, wherein at least one of the anionic compound and the cationic compound is a friction modifying compound comprising from about 10 to about 30 carbon atoms, and   wherein the composition has (i) a temperature roll over difference of about 27° F. or greater, and (ii) a passing High Temperature L-37 score.   
     
     
         26 . The method of  claim 25 , wherein the cationic compound is present in the composition in an amount ranging from about 0.05 wt. % to about 1.0 wt. %, relative to the total weight of the composition. 
     
     
         27 . The method of  claim 25 , wherein the anionic compound is present in the composition in an amount ranging from about 0.05 wt. % to about 1.0 wt. %, relative to the total weight of the composition. 
     
     
         28 . A vehicle lubricated with the composition of  claim 1  wherein the vehicle has a gear final drive ratio ranging from about 2.5:1 to about 6:1. 
     
     
         29 . The vehicle of  claim 28 , wherein the vehicle is one of a light duty car, truck, sport utility vehicle with limited slip mechanisms in the differential experience, and sport utility vehicle without limited slip mechanisms in the differential experience. 
     
     
         30 . A machine lubricated with a composition according to  claim 1 . 
     
     
         31 . The machine of  claim 31 , wherein the machine is an automotive gear. 
     
     
         32 . The machine of  claim 31 , wherein the machine is a hypoid gear. 
     
     
         33 . The machine of  claim 31 , wherein the machine is a bevel gear. 
     
     
         34 . A vehicle comprising a light duty axle lubricated with the composition of  claim 1 .

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