There is provided a grease composition for improving the chemical stability of the grease composition and increasing the fatigue life of a member in which the grease composition is used. The problems can be solved by a grease composition including a poly--olefin; a urea-based thickener; molybdenum dithiophosphate; and barium sulfonate, wherein a difference between an SP value of the urea-based thickener and an SP value of the poly--olefin is 3.5 or less.

A lubricating oil composition for a continuously variable transmission including: (A) a lubricant base oil; (B) a borate ester compound in an amount of 25 to 500 mass ppm in terms of boron on the basis of the total mass of the composition; (C) phosphoric acid in an amount of 100 to 750 mass ppm in terms of phosphorus on the basis of the total mass of the composition; (D) a poly(meth)acrylate having a weight average molecular weight of no more than 100,000, wherein the lubricating oil composition has a kinematic viscosity at 40 C. of no more than 25 mm.sup.2/s.

The present invention provides a lubricant composition having high moisture resistance and having physical properties including low viscosity, low evaporability, low-temperature fluidity, and a high viscosity index. The lubricant composition contains (i) an aliphatic ether compound as a base oil and (ii) an antioxidant made from at least alkylated phenylnaphthylamine and phosphite ester, wherein a sum of individual amounts of the alkylated phenylnaphthylamine and the phosphite ester is a predetermined amount, and the alkylated phenylnaphthylamine and the phosphite ester are used in a predetermined ratio.

The present invention relates to a lubricant composition comprising at least one polyalkyl(meth)acrylate including repeating units derived from (meth)acrylates having 6 to 22 carbon atoms in the alcohol radical, wherein the polyalkyl(meth)acrylate includes repeating units derived from ethylenically unsaturated monomers having at least one covalently bonded phosphorus atom. The present invention further relates to a polyalkyl(meth)acrylate suitable for such a lubricant composition and to the use of a polyalkyl(meth)acrylate having repeating units derived from ethylenically unsaturated monomers having at least one covalently bonded phosphorus atom for reducing friction.

The present invention relates to a corrosion-protection system suitable for producing aqueous metal treatment and metal processing fluids, particularly corrosion-protection, cleaning and cooling lubricant emulsions. The corrosion-protection system comprises carbonic and/or phosphonic acids, as well as at least one amine with at least one oxybis(alkylamine) unit. Such corrosion-protection systems effectively protect metal surfaces from corrosion and have a high level of water solubility, which is essential for formulating aqueous concentrates for metal treatment and metal processing fluids. The present invention further relates to an aqueous surface-active and corrosion-protecting preparation containing the corrosion protection system and an emulsifier system, as well as an oil-containing water-miscible emulsion concentrate, which supplies the ready-to-use corrosion-protection, cleaning and cooling lubricant emulsions by dilution with water.

Disclosed is a composition of continuously variable transmission oil for improving fuel efficiency and endurance performance. Provided herein is a novel composition of continuously variable transmission oil that can improve fuel efficiency through reduction of fluid resistance by decreasing viscosity at a low temperature, and can enhance endurance performance of the transmission by increasing the viscosity at a high temperature. Provided herein is a continuously variable transmission oil composition containing a predetermined amount of olefin amide comb PMA as a viscosity adjusting agent in a base oil having a pour point of 40 C. or less, in addition to additives.

Disclosed are refrigerants comprising at least about 97% by weight of a blend of three compounds, said blend consisting of:

from about 38% by weight to about 48% by weight difluoromethane (HFC-32),
from about 6% by weight to about 12% by weight pentafluoroethane (HFC-125),
from about 33% by weight to about 41% by weight trifluoroiodomethane (CF.sub.3I) and
from about 2% by weight to about 16% by weight 2,3,3,3-tetrafluoropropene (HFO-1234yf)
wherein the percentages are based on the total weight of the three compounds in the blend, and methods and systems which use same.

Disclosed are refrigerants comprising at least about 97% by weight of a blend of three compounds, said blend consisting of: from about 40% by weight to about 49% by weight difluoromethane (HFC-32), from about 6% by weight to about 12% by weight pentafluoroethane (HFC-125), from about 33% by weight to about 40% by weight trifluoroiodomethane (CF.sub.3I); and from about 2% by weight to about 12% by weight of trans 1,3,3,3-tetrafluoropropene (trans HFO-1234ze), wherein the percentages are based on the total weight of the three compounds in the blend, and systems and method using same.

Disclosed is a lubricating oil composition comprising an oil of lubricating viscosity and an oil soluble synergistic mixture of antioxidants, said mixture comprising: a) a hindered amine antioxidant according to formula (I)

##STR00001## wherein each R.sup.1 is independently selected from a substituted or unsubstituted, branched or linear, C.sub.1-C.sub.20 hydrocarbyl group; R.sup.2 is selected from the group consisting of a hydrogen atom or a, substituted or unsubstituted, branched or linear, C.sub.1-C.sub.20 hydrocarbyl group; each R.sup.3 is independently selected from the group consisting of a hydrogen atom or a, substituted or unsubstituted, branched or linear, C.sub.1-C.sub.20 hydrocarbyl group; each R.sup.4 is independently selected from the group consisting of a hydrogen atom or a, substituted or unsubstituted, branched or linear, C.sub.1-C.sub.20 hydrocarbyl group; n is an integer from 1 to 4; and m is an integer from 1 to 5; and b) a molybdenum succinimide complex.

The disclosure relates to novel non-fossil, high performance sustainable lubricants.