US 12,281,279 B2
Lubricating composition for electric vehicles
Goulven Bouvier, Solaize (FR); and Richard Vernay, Solaize (FR)
Assigned to TOTALENERGIES ONETECH, Courbevoie (FR)
Appl. No. 17/922,567
Filed by TOTALENERGIES ONETECH, Courbevoie (FR)
PCT Filed May 4, 2021, PCT No. PCT/EP2021/061763
§ 371(c)(1), (2) Date Oct. 31, 2022,
PCT Pub. No. WO2021/224285, PCT Pub. Date Nov. 11, 2021.
Claims priority of application No. FR2004452 (FR), filed on May 5, 2020.
Prior Publication US 2023/0167380 A1, Jun. 1, 2023
Int. Cl. C10M 171/02 (2006.01); C10N 10/04 (2006.01); C10N 30/00 (2006.01); C10N 30/02 (2006.01); C10N 30/04 (2006.01); C10N 40/00 (2006.01); C10N 40/04 (2006.01); C10N 40/25 (2006.01)
CPC C10M 171/02 (2013.01) [C10N 2010/04 (2013.01); C10N 2030/02 (2013.01); C10N 2030/04 (2013.01); C10N 2030/44 (2020.05); C10N 2040/04 (2013.01); C10N 2040/25 (2013.01); C10N 2040/40 (2020.05)] 17 Claims
OG exemplary drawing
 
1. Lubricating composition comprising at least one base oil and at least one additive selected from anti-wear additives, extreme pressure additives, antioxidants, anti-corrosion additives, metal deactivator additives, anti-foam agents, dispersants and mixtures thereof,
said composition having a boron concentration of 10 ppm by weight or less, a nitrogen concentration ranging from 300 to 490 ppm by weight, a calcium concentration ranging from 200 to 500 ppm by weight, a phosphorous concentration ranging from 100 to 500 ppm by weight, and a sulfur concentration ranging from 100 to 1500 ppm by weight, with respect to the total weight of the lubricating composition.