Lubricating composition for gear
AssigneeTotalenergies Onetech
InventorsBenoit Thiebaut, Stéphane Gavand
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Abstract
The present invention relates to the use of a lubricating composition for lubricating gear, wherein the lubricating composition comprises: at least a base oil; and at least a Molybdenum or Tungsten chalcogenide nanoobject having an object size ranging 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 A-X-B (I).
Claims12
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.
A method for lubricating gearing comprising at least one step of bringing the gearing into contact with a lubricating composition comprising 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, and 6-amino-1-hexanol.
Dependencies are inferred from the claim text.