	US 12,227,714 B2
	Lubricating composition for gear
Benoit Thiebaut, Lyons (FR); and Stéphane Gavand, Dardilly (FR)
Assigned to TotalEnergies OneTech, Courbevoie (FR)
Appl. No. 17/784,760
Filed by TotalEnergies OneTech, Courbevoie (FR)
PCT Filed Dec. 17, 2020, PCT No. PCT/EP2020/086668 § 371(c)(1), (2) Date Jun. 13, 2022, PCT Pub. No. WO2021/122913, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 19306726 (EP), filed on Dec. 20, 2019.
Prior Publication US 2023/0008086 A1, Jan. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C10M 125/22 (2006.01); C10M 169/04 (2006.01); C10N 10/12 (2006.01); C10N 20/00 (2006.01); C10N 20/06 (2006.01); C10N 30/02 (2006.01); C10N 30/04 (2006.01); C10N 40/04 (2006.01); C10N 60/00 (2006.01); C10N 70/00 (2006.01)

CPC C10M 125/22 (2013.01) [C10M 169/04 (2013.01); C10M 2201/066 (2013.01); C10N 2010/12 (2013.01); C10N 2020/06 (2013.01); C10N 2020/061 (2020.05); C10N 2030/02 (2013.01); C10N 2030/04 (2013.01); C10N 2040/04 (2013.01); C10N 2060/01 (2020.05); C10N 2070/00 (2013.01)]

12 Claims

1. A method for lubricating gearing comprising at least one step of bringing the gearing into contact with a lubricating composition comprising:

a base oil; and

a Molybdenum or Tungsten chalcogenide nanoobject having an object size comprised from 0.1 to 500 nm and from 1 to 99% by weight of molecules of formula (I) with respect to the total weight of the nanoobject, wherein the surface of the nanoobject is functionalized with the molecules of formula (I),

A-X-B (I)

wherein the molecule of formula (I) is selected from the group consisting of: propylene glycol, ethylene glycol, diethylene glycol, polyethylene glycol, diethanolamine, 1,6-hexanediol, polyethyleneglycolmonomethyl ether, 6-amino-1-hexanol, and polyalkylene glycol.