A lubricant composition comprising: (i) silver or gold nanoparticles, each of which is encapsulated by a layer of alkylthiol or alkylamine molecules; (ii) palladium or platinum nanoparticles, each of which is encapsulated by a layer of alkylthiol or alkylamine molecules; and (iii) a fluid in which components (i) and (ii) are present. Further described are methods for applying the lubricant composition onto a mechanical device for which lubrication is beneficial, with resulting improvement in friction and wear reduction and/or corrosion inhibition.

An industrial lubricant composition including an oil base selected from the group consisting of vegetable oil, Group I, Group II, Group III, Group IV, Group V and combinations thereof and a phosphorus-based non-chlorine additive. The industrial lubricant also includes at least one intercalation compound of a metal chalcogenide, a carbon containing compound and a boron containing compound, wherein the intercalation compound may have a geometry that is a platelet shaped geometry, a spherical shaped geometry, a multi-layered fullerene-like geometry, a tubular-like geometry or a combination thereof.

Provided are a method for simultaneously and stably dispersing spherical nanoparticles in an oil medium by using layered nanosheets and an application thereof. The method comprises: (1) mixing the layered nanosheets and oil-soluble alkylamines to obtain a first mixture containing intercalated/exfoliated nano sheets; (2) mixing spherical nanoparticles and the oil medium to obtain a second mixture; and (3) mixing the first mixture, the second mixture and the oil medium to obtain a third mixture.

Disclosed herein is a method of pretreatment of a metallic substrate for a subsequent metal cold forming process. The method includes at least steps (1) and (2), namely providing at least one substrate having at least one surface at least partially made of at least one metal (step (1)), contacting the at least one surface of the substrate provided in step (1) with an aqueous lubricant composition (B) (step (2)), where the aqueous lubricant composition (B) includes besides water at least constituents (b1) to (b4) and optionally (b5).

Further disclosed herein are a pretreated metallic substrate obtained by the method, a method of cold forming of a metallic substrate, and an aqueous lubricant composition (B).

An industrial lubricant composition including an oil base selected from the group consisting of vegetable oil, Group I, Group II, Group III, Group IV, Group V and combinations thereof and a phosphorus-based non-chlorine additive. The industrial lubricant also includes at least one intercalation compound of a metal chalcogenide, a carbon containing compound and a boron containing compound, wherein the intercalation compound may have a geometry that is a platelet shaped geometry, a spherical shaped geometry, a multi-layered fullerene-like geometry, a tubular-like geometry or a combination thereof.

A system for modifying viscosity of a lubricant. The system including a viscosity modification device configured to change viscosity of the lubricant between a first viscosity and a second viscosity. The second viscosity is lower than the first viscosity.

The invention relates to a coating composition for the piston of an internal combustion engine. The composition comprises 10-30 wt. % of phenolic resin, 10-30 wt. % of epoxy resin, 10-30 wt. % of at least one solid lubricant selected from the group consisting of graphite, MoS.sub.2, WS.sub.2 and BN, and 5-30 wt. % of Fe.sub.2O.sub.3 particles.

A water based dispersion that includes lubricating nanoparticles. The lubricating nanoparticles can be provided by at least one intercalation nanoparticle of a metal chalcogenide in dispersion with the water base. The at least one intercalation nanoparticle may have a geometry that is fullerene-like, tubular-like structure or be substantially spherical or the intercalation nanoparticles may include particles have each of the aforementioned geometries. The intercalation nanoparticle is surface treated with a dispersant that is water soluble and includes a polar functional group.

Disclosed is a method for preventing or reducing low speed pre-ignition in an engine lubricated with a formulated oil. The formulated oil has a composition comprising at least one oil soluble or oil dispersible cobalt-containing compound.

There is provided a press-fit lubricant composition comprising an unsaturated compound with an iodine value of 100 or more.