	US 11,739,279 B2
	Lubricant composition for initial break-in, sliding member, and sliding member manufacturing method
Norihiro Kimoto, Tokyo (JP); Tomohiro Goto, Tokyo (JP); and Hiroki Kageyama, Tokyo (JP)
Assigned to DAICEL CORPORATION, Osaka (JP)
Appl. No. 17/275,080
Filed by DAICEL CORPORATION, Osaka (JP)
PCT Filed Aug. 28, 2019, PCT No. PCT/JP2019/034676 § 371(c)(1), (2) Date Mar. 10, 2021, PCT Pub. No. WO2020/054523, PCT Pub. Date Mar. 19, 2020.
Claims priority of application No. 2018-169388 (JP), filed on Sep. 11, 2018; application No. 2018-208067 (JP), filed on Nov. 5, 2018; application No. 2019-008241 (JP), filed on Jan. 22, 2019; and application No. 2019-124465 (JP), filed on Jul. 3, 2019.
Prior Publication US 2021/0261878 A1, Aug. 26, 2021
Int. Cl. C10M 125/02 (2006.01); C10M 169/04 (2006.01); F16C 33/04 (2006.01); C10N 30/06 (2006.01); C10N 20/06 (2006.01); C10N 50/00 (2006.01); C10N 40/02 (2006.01)

CPC C10M 125/02 (2013.01) [C10M 169/04 (2013.01); F16C 33/043 (2013.01); C10M 2201/041 (2013.01); C10N 2020/06 (2013.01); C10N 2030/06 (2013.01); C10N 2040/02 (2013.01); C10N 2050/015 (2020.05)]

7 Claims

1. An initial break-in lubricant composition comprising an organic dispersion medium, and a nanocarbon particle in a quantity from 0.1 to 500 ppm by mass, wherein the nanocarbon particle is a surface-modified nanodiamond particle, the surface of which is modified by at least one selected from a group consisting of silane compounds, a phosphonate ion, phosphonic acid residue, a surface-modifying group having a vinyl group at a terminal, a cation of a cationic surfactant, a group containing a polyglycerin chain, and a group containing a polyethylene glycol chain.