Patent ID: 9441181
Filing Date: 2016-09-13
CPC Classification: C10M,C10N

Claim Text:
1. A lubricant additive comprising: a base oil; colloidal nanocarbon particles having surface groups, wherein the colloidal nanocarbon particles comprise at least one type of particle selected from the group consisting of nanodiamonds, functionalized nanodiamonds, polycrystalline nanodiamonds, nanodiamonds surrounded by a sp a fluorine containing oligomeric dispersant that is anchored to and surrounds the nanocarbon particles and that interacts with the surface groups of the nanocarbon particles, wherein the dispersant inhibits agglomeration of the nanocarbon particles, wherein the fluorine containing oligomeric dispersant includes an anchoring group, a lipophilic hydrocarbon group, and a fluorinated oleophobic group; wherein the fluorine containing oligomeric dispersant comprises at least one of the group consisting of a fluorine-containing monoester of alkylsuccinic acid, isomers of fluorine-containing monoester of alkylsuccinic acid, and a fluorine-containing diester of alkylsuccinic acid; wherein the fluorine containing oligomeric dispersant has at least one of isomeric structures (IV.A) and (IV.B) shown below: where R2 represents a saturated aliphatic hydrocarbon group, R1 represents a first fluorine containing group, and R3 represents parts of an anchor group or a second fluorine containing group; wherein the saturated aliphatic hydrocarbon group R2 is polyisobutylene with structure (VI) shown below: where n=15-60, and where the first fluorine containing group R1 is a fluoroalkyl group or a fluoroalkenyl group; and wherein the first fluorine containing group R1 is a fluorine containing group selected from the group consisting of: F H(CF where n=1-10, and where R3=H.