The invention relates to lubricating greases based on alkali metal soaps and/or earth-alkali metal soaps and metal complex soaps based on (R)-10-hydroxyoctadecanoic acid and to the use thereof.

The present invention relates to a composition for cooling a propulsion system of an electric or hybrid vehicle, comprising (i) at least one hydrocarbon-based fluid with a boiling point of greater than or equal to 50° C., and (ii) at least one fire retardant corresponding to formula (I)
R.sub.F-L-R.sub.H  (I) in which R.sub.F is a perfluorinated or partially fluorinated group, R.sub.H is a hydrocarbon-based group, and L is a linker. The invention also relates to the use of at least one fire retardant of formula (I), in a composition for cooling a propulsion system of an electric or hybrid vehicle, and more particularly its power electronics and its batteries, to give it ignition-resistance properties, said cooling composition comprising at least one hydrocarbon-based fluid with a boiling point of greater than or equal to 50° C. Finally, the invention relates to a process for cooling and fire-protecting at least one battery of a propulsion system of an electric or hybrid vehicle, comprising at least one step of placing at least one battery in contact with a composition according to the invention.

Compositions include ether ester compounds derived from neo-alcohols, lubricating oil base stocks containing such ester compounds, and lubricating oil compositions containing such ester compounds. Methods can include making and formulating compositions containing ether ester compounds derived from neo-alcohols.

Compositions include ether ester compounds derived from neo-alcohols, lubricating oil base stocks containing such ester compounds, and lubricating oil compositions containing such ester compounds. Methods can include making and formulating compositions containing ether ester compounds derived from neo-alcohols.

The present invention addresses a problem of providing a grease composition that uses hydrophilic nanofibers but still has excellent water resistance and does not readily experience oil separation. The grease composition contains a base oil, hydrophilic nanofibers having a thickness (d) of 1 to 500 nm, and an organic bentonite.

The present invention relates to the use, for cooling and lubricating a propulsion system of an electric or hybrid vehicle, of a composition comprising: (i) at least one base oil; and (ii) at least one diester of formula R.sup.a—C(O)—O—([C((R).sub.2)].sub.n—O).sub.s—C(O)—R.sup.b (I), different than the base oil (i). The invention also relates to a method of cooling and lubricating a propulsion system of an electric or hybrid vehicle comprising at least one step of bringing at least one mechanical component of said system into contact with a composition as defined above.

The invention relates to the use of at least one phosphorus compound, which is free of sulfur and has no amine function, as an anti-wear and extreme-pressure additive in a lubricant composition for a propulsion system of an electric or hybrid vehicle. The invention also relates to the use of a lubricant composition comprising at least one phosphorus compound, which is free of sulfur and has no amine function, as an anti-wear and extreme-pressure additive, for lubricating and optionally cooling a propulsion system of an electric or hybrid vehicle, in particular for lubricating and cooling the electric motor and the power electronics of an electric or hybrid vehicle.

Disclosed is an internal combustion engine lubricating oil composition for reducing corrosion in the engine of a hybrid vehicle. Reduction of corrosion can be determined by the JIS K2246 test method. Also disclosed are methods for using said lubricating oil composition for reducing corrosion in the engine of a hybrid vehicle.

The present disclosure relates to methods of lubricating an electric or a hybrid-electric transmission using a lubricant including a solvent system with a blend of one or more base oils with a branched diester and one or more poly(meth)acrylate copolymers, transmissions therefor, and lubricating compositions suitable for such applications that exhibit good lubricant properties, good electrical properties, and good cooling efficiency at the same time.

The invention relates to the use of at least one compound, which has at least one sterically hindered amine or phenolic function, as an anti-corrosion additive in a lubricant composition for a propulsion system of an electric or hybrid vehicle, said lubricant composition comprising one or more amino and/or sulfur anti-wear additives. The invention also relates to the use of a lubricant composition comprising one or more compounds, which has at least one sterically hindered amine or phenolic function, as one or more anti-corrosion additives, further comprising one or more amino and/or sulfur anti-wear additives, for lubricating a propulsion system of an electric or hybrid vehicle, in particular for lubricating the electric motor and the power electronics of an electric or hybrid vehicle.