US 12,241,039 B2
Graphene-based lubricant additives and lubricants
Allan James, Lansing, MI (US); Hiroyuki Fukushima, Lansing, MI (US); and Liya Wang, Lansing, MI (US)
Assigned to NanoXplore Inc., Montreal (CA)
Appl. No. 17/799,399
Filed by NanoXplore Inc., Montreal (CA)
PCT Filed Feb. 22, 2021, PCT No. PCT/US2021/018981
§ 371(c)(1), (2) Date Aug. 12, 2022,
PCT Pub. No. WO2021/168394, PCT Pub. Date Aug. 26, 2021.
Claims priority of provisional application 62/978,970, filed on Feb. 20, 2020.
Prior Publication US 2024/0240103 A1, Jul. 18, 2024
Int. Cl. C10M 169/04 (2006.01); C10M 107/02 (2006.01); C10M 125/02 (2006.01); C10M 173/00 (2006.01); C10N 20/06 (2006.01); C10N 30/04 (2006.01)
CPC C10M 169/04 (2013.01) [C10M 107/02 (2013.01); C10M 125/02 (2013.01); C10M 173/00 (2013.01); C10M 2201/02 (2013.01); C10M 2201/041 (2013.01); C10M 2201/14 (2013.01); C10M 2205/0206 (2013.01); C10N 2020/06 (2013.01); C10N 2030/04 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A graphene-based lubricant comprising:
a graphene-based additive having a surface area in the range of 300-800 m2/g;
a base liquid in which the graphene-based additive is dispersed; and
other additives dispersed in the base liquid,
wherein the graphene-based additive includes one or more surfactants comprising sulfonates, sulfates, polysaccharides, maleic anhydride grafted polyolefins, polyethylene glycols, or styrene acrylics bonded to the surface of the graphene.