US2021301217A1PendingUtilityA1

Lubricating composition and method of formation relating thereto

Assignee: IDEMITSU KOSAN COPriority: Mar 30, 2020Filed: Mar 30, 2020Published: Sep 30, 2021
Est. expiryMar 30, 2040(~13.7 yrs left)· nominal 20-yr term from priority
C10N 2030/02C10M 2223/045C10N 2030/10C10M 2215/064C10M 2215/223C10M 2205/04C10N 2030/04C10M 141/12C10N 2040/25C10M 2209/084C10N 2020/04C10M 2219/046C10M 2207/026C10M 2215/28C10M 2207/262C10N 2030/12C10M 139/00C10M 2227/06C10M 169/04C10M 129/10C10N 2030/06C10M 2207/023C10M 2290/02C10N 2240/10C10N 2230/02C10N 2230/04C10N 2230/10C10N 2230/06
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Claims

Abstract

The present disclosure provides a lubricating composition that includes one or more boron-containing compounds and method of forming the same. The lubricating composition includes one or more boron-containing compounds, one or more metal-based detergents, one or more amine-based antioxidants, one or more phenol-based antioxidants, and a base oil balance. The lubricating composition includes greater than or equal to about 60 ppm to less than or equal to about 300 ppm of boron atoms that define the one or more boron-containing compounds; greater than or equal to about 1,100 ppm of metal atoms that define the one or more metal-based detergents; greater than or equal to about 0.70 wt. % to less than or equal to about 2.00 wt. % of the one or more amine-based antioxidants; and greater than or equal to about 0.30 wt. % to less than or equal to about 2.00 wt. %, of the one or more phenol-based antioxidants.

Claims

exact text as granted — not AI-modified
1 . A lubricating composition comprising:
 one or more boron-containing compounds, wherein the lubricating composition comprises greater than or equal to about 60 ppm to less than or equal to about 300 ppm of boron atoms that define the one or more boron-containing compounds;   one or more metal-based detergents, wherein the lubricating composition comprises greater than or equal to about 1,100 ppm of metal atoms that define the one or more metal-based detergents;   greater than or equal to about 0.70 wt. % to less than or equal to about 2.00 wt. % of one or more amine-based antioxidants;   greater than or equal to about 0.30 wt. % to less than or equal to about 2.00 wt. %, of one or more phenol-based antioxidants; and   a base oil balance, wherein a mass ratio between nitrogen atoms (N) and metal atoms (M) in the lubricating oil (M/N) is greater than or equal to about 1.0 to less than or equal to about 2.0.   
     
     
         2 . The lubricating composition of  claim 1 , wherein a combined amount of the one or more amine-based antioxidants and the one or more phenol-based antioxidants is greater than or equal to about 1.5 wt. %. 
     
     
         3 . (canceled) 
     
     
         4 . (canceled) 
     
     
         5 . The lubricating composition of  claim 1 , wherein the lubricating composition comprises greater than or equal to about 1,200 ppm of metal atoms defining the one or more metal-based detergents. 
     
     
         6 . The lubricating composition of  claim 1 , wherein the one or more boron-containing compounds comprise borated succinimide. 
     
     
         7 . The lubricating composition of  claim 1 , wherein the one or more metal detergents comprise at least one of a calcium detergent and a magnesium detergent. 
     
     
         8 . The lubricating composition of  claim 7 , wherein the lubricating composition comprises greater than or equal to about 1000 ppm to less than or equal to about 1400 ppm of calcium atoms, and greater than or equal to about 100 ppm to less than or equal to about 400 ppm of magnesium atoms. 
     
     
         9 . (canceled) 
     
     
         10 . The lubricating composition of  claim 1 , wherein the lubricating composition further comprises greater than or equal to about 0.20 wt. % to less than or equal to about 0.75 wt. % of one or more anti-wear and/or extreme pressure agents. 
     
     
         11 . The lubricating composition of  claim 10 , wherein the one or more anti-wear and/or extreme pressure agents comprise zinc dialkyldithiophosphate (ZnDTP). 
     
     
         12 . The lubricating composition of  claim 1 , wherein the lubricating composition further comprises greater than 0 wt. % to less than or equal to about 3.0wt. % of one or more viscosity index improvers. 
     
     
         13 . A method for forming a lubricating composition, the method comprising:
 adding to a base oil one or more boron-containing compounds such that the lubricating composition comprises greater than or equal to about 60 ppm to less than or equal to about 300 ppm of boron atoms that define the one or more boron-containing com pounds;   adding to the base oil one or more metal-based detergents such that the lubricating composition comprises greater than or equal to about 1,100 ppm of metal atoms that define the one or more metal-based detergents;   adding to the base oil greater than or equal to about 0.70 wt. % to less than or equal to about 2.00 wt. % of one or more amine-based antioxidants; and adding to the base oil greater than or equal to about 0.30 wt. % to less than or equal to about 2.00 wt. %, of one or more phenol-based antioxidants,   wherein a mass ratio between nitrogen atoms (N) and metal atoms (M) in the lubricating oil (M/N) is greater than or equal to about 1.0 to less than or equal to about 2.0.   
     
     
         14 . (canceled) 
     
     
         15 . The method of  claim 13 , wherein the one or more boron-containing compounds comprise boron succinimide. 
     
     
         16 . The method of  claim 13 , wherein the one or more metal detergents comprise at least one of a calcium detergent and a magnesium detergent. 
     
     
         17 . (canceled) 
     
     
         18 . The method of  claim 13 , wherein the lubricating composition further comprises greater than or equal to about 0.25 wt. % to less than or equal to about 0.75 wt. % of one or more anti-wear and/or extreme pressure agents. 
     
     
         19 . The method of  claim 13 , wherein the lubricating composition further comprises gre 3 ater than 0 wt. % to less than or equal to about 0.75 wt. % of one or more viscosity index improvers.

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