A blend for lubricating a surface includes a lubricant and a polyepoxide co(ter)polymer additive mixed with the lubricant. The polyepoxide co(ter)polymer additive includes a first block having monomer M.sub.1 and a second block having monomer M.sub.2. The first monomer M.sub.1 includes hexene oxide, HO, or octene oxide, OO, and the second monomer M.sub.2 includes propylene oxide, PO.

Disclosed are lubricating compositions and base oils for motor vehicles, specifically for engines, gearboxes, or vehicle axle assemblies. The lubricating composition contains an oil-soluble polymer that is a specific polyalkyl glycol or a specific polyalkylene glycol (PAG). Also described is use of the lubricating composition for reducing fuel consumption in a vehicle provided with an engine, an axle assembly, or a gearbox that are lubricated using the lubricating composition or the specific PAG.

To provide a lubricating oil composition for internal combustion engines, which can realize low friction in both internal combustion engines equipped with a DLC and internal combustion engines not equipped with a DLC. [Solution] a lubricating oil composition for internal combustion engines, which is characterized in that the lubricating oil composition for internal combustion engines is a composition obtained by blending a molybdenum dithiocarbamate (MoDTC) and a polyalkylene glycol (PAG) in a base oil, the weight average molecular weight of the polyalkylene glycol is 2750-4500 and the content of the polyalkylene glycol is not less than 0.05 mass % and less than 10 mass % relative to the total mass of the composition.

The present invention relates to novel aminobisphosphonate compounds useful as antiwear and/or friction modifier additive components, lubricant additive compositions and lubricant compositions each comprising such compounds, and methods for making and using the same.

A composition contains a propylene oxide/butylene oxide copolymer with an ethylene oxide/propylene oxide copolymer where the propylene oxide/butylene oxide copolymer has a concentration of propylene oxide moieties in a range of 25-75 wt % based on total of propylene oxide and butylene oxide moieties, the ethylene oxide/propylene oxide copolymer has a concentration of ethylene oxide moieties that is greater than zero and up to 60 wt % based on the total weight of ethylene oxide and propylene oxide moieties, and wherein the concentration of the ethylene oxide/propylene oxide copolymer is greater than zero and one wt % or less based on the total weight of propylene oxide/butylene oxide and ethylene oxide/propylene oxide copolymers and the ethylene oxide/propylene oxide copolymer is a reverse copolymer or a random copolymer.

The present invention concerns a coolant, present as an emulsion in the form of a concentrate, for machining fiber-reinforced plastics and material combinations containing fiber-reinforced plastics and metals; furthermore, the present invention also concerns a coolant, present as a solution in the form of concentrate, for machining fiber-reinforced plastics.

The present invention concerns a coolant, present as an emulsion in the form of a concentrate, for machining fiber-reinforced plastics and material combinations containing fiber-reinforced plastics and metals; furthermore, the present invention also concerns a coolant, present as a solution in the form of concentrate, for machining fiber-reinforced plastics.

A capped oil soluble polyalkylene glycol has the following structure: R.sup.1O-(AO).sub.nR.sup.2 where: R.sup.1 is a linear or branched alkyl or aryl with one to 18 carbon atoms; AO refers to residuals of monomers selected from 1,2-butylene oxide and 1,2-propylene oxide selected so that at least 50 weight-percent of the (AO).sub.n component is 1,2-butylene oxide residuals; n is selected to provide a kinematic viscosity at 100 degrees Celsius of less than 5 centiStokes for the non-capped polyalkylene glycol; and R.sup.2 is a linear or branched alkyl or aryl having from 1-8 carbon atoms and wherein the capped oil soluble polyalkylene glycol is characterized by having a kinematic viscosity of less than 4.5 centiStokes at 100 degrees Celsius and a viscosity index of greater than 150.

The invention relates to an aqueous lubricant composition comprising at least: water; from 0.1% to 15% by mass of at least one water-soluble polyalkylene glycol; and from 0.1% to 5% by mass of at least one galactomannan polysaccharide. The invention further relates to the use of such an aqueous lubricant composition as a lubricant in a metalworking process, in particular for reducing, or even preventing, the formation of gummy residues.

The present invention relates to novel aminobisphosphonate compounds useful as antiwear and/or friction modifier additive components, lubricant additive compositions and lubricant compositions each comprising such compounds, and methods for making and using the same.