A lubricant composition according to the present invention contains a fatty acid metal salt, a metal dithiocarbamate, and an additive having an effect of increasing an acid value of the lubricant composition, whereby fretting resistance performances are further improved.

To provide a lubricating oil composition that has good detergency irrespective of the small sulfated ash content thereof, and has a good friction reducing capability even after the deterioration thereof. The lubricating oil composition contains a base oil (A), a non-metal-containing sulfur antioxidant (B), and a hindered amine antioxidant (C) having one piperidine-derived skeleton in a molecule, and has a content of the non-metal-containing sulfur antioxidant (B) as converted in terms of sulfur atom of 800 ppm by mass or more based on the total amount of the lubricating oil composition, a content of the hindered amine antioxidant (C) as converted in terms of nitrogen atom of 100 ppm by mass or more and 400 ppm by mass or less based on the total amount of the lubricating oil composition, a sulfated ash content of 0.70% by mass or less, and a total base number of 4.0 mgKOH/g or more.

Novel compounds are described, being alkylated diphenylamine derivatives of triazole, wherein the alkyl group on at least one of the phenyl groups is C8 or higher, in an amount ranging from 0.001 to 5.0% by weight of the lubricating composition. In particular, the derivatives may be 1-[di-(4-octylphenyl)aminomethyl]triazole; 1-[di-(4-nonylphenyl)aminomethyl]triazole; 1-[(4-octylphenyl)(4-butylphenyl)aminomethyl]triazole; and 1-[(4-octylphenyl)(phenyl)aminomethyl]triazole. A lubricating composition comprising the novel derivatives is also disclosed.

A lubricating oil composition, containing the following components a base oil (A), a thiadiazole-based compound (B), and a boron-modified alkenyl succinimide (C). A content of the component (B) is less than 0.60 mass % based on a total amount of the lubricating oil composition, a content ratio [B/N] by mass of boron atoms to nitrogen atoms derived from the component (C) is 0.35 or more, and a content of boron atoms derived from the component (C) is 300 ppm by mass or less based on the total amount of the lubricating oil composition.

An additive formulation suitable for antistatic modification and improving the electrical conductivity of inanimate organic material, consisting essentially of (A) from 1 to 50% by weight of an olefin-sulfur dioxide copolymer, (B) from 1 to 50% by weight of a compound which comprises one or more basic nitrogen atoms and has at least one relatively long-chain linear or branched hydrocarbon radical having at least four carbon atoms or an equivalent structural element which ensures the solubility of component (B) in the inanimate organic material, (C) from 0.1 to 30% by weight of an oil-soluble acid and (D) from 1 to 80% by weight of a high-boiling organic solvent which consists of one or more molecule types, where at least 80% by weight of these molecule types have a boiling point of more than 150 C. at standard pressure,
where the sum of all components adds up to 100% by weight.

An additive formulation suitable for antistatic modification and improving the electrical conductivity of inanimate organic material, consisting essentially of (A) from 1 to 50% by weight of an olefin-sulfur dioxide copolymer, (B) from 1 to 50% by weight of a compound which comprises one or more basic nitrogen atoms and has at least one relatively long-chain linear or branched hydrocarbon radical having at least four carbon atoms or an equivalent structural element which ensures the solubility of component (B) in the inanimate organic material, (C) from 0.1 to 30% by weight of an oil-soluble acid and (D) from 1 to 80% by weight of a high-boiling organic solvent which consists of one or more molecule types, where at least 80% by weight of these molecule types have a boiling point of more than 150 C. at standard pressure,
where the sum of all components adds up to 100% by weight.

The disclosed technology relates to a lubricant composition for automotive or industrial gears, as well as axles and bearings, the automotive or industrial gear oil containing an oil of lubricating viscosity, an optional phosphate and/or thiophosphate compound, a particular sulfurized olefin, either a metal thiophosphate compound, such as zinc dialkyldithiophosphate, a thiadiazole functionalized dispersant, or a mixture thereof, and a hydroxyl/amine containing booster, as well as a method of improving automotive or industrial gear operating efficiency and temperature by lubricating such automotive or industrial gears with the automotive or industrial gear oil.

An antioxidant composition which comprises: (a) methylenebis(di-n-butyldithiocarbamate); and (b) an alkylated diphenylamine derivative of triazole wherein the alkyl group on at least one of the phenyl groups is C.sub.8 or higher. Lubricating compositions containing the antioxidant composition are also contemplated.

The invention provides lubricating compositions and methods of use thereof in man or in animals. Specifically, provided are lubricating compositions comprising effective amounts of chondroitin sulfate and hyaluronan, and optionally include N-acetyl D-glucosamine.

Novel compounds are described, being alkylated diphenylamine derivatives of triazole, wherein the alkyl group on at least one of the phenyl groups is C8 or higher, in an amount ranging from 0.001 to 5.0% by weight of the lubricating composition. In particular, the derivatives may be

1-[di-(4-octylphenyl)aminomethyl]triazole;

1-[di-(4-nonylphenyl)aminomethyl]triazole;

1-[(4-octylphenyl)(4-butylphenyl)aminomethyl]triazole; and

1-[(4-octylphenyl)(phenyl)aminomethyl]triazole.

A lubricating composition comprising the novel derivatives is also disclosed.