摘要:
An additive for oils that is capable of imparting oils such as lubricant base oils or fuel oils with superior wear resistance properties or superior friction resistance properties and the like are provided. The additive for oils comprising a compound represented by formula (I):
[Chemical Formula 1] (A) m -W-(B) n (I)
wherein m represents an integer of 0 to 4, n represents an integer of 2 to 6, A represents hydroxy or amino, W represents hydrocarbon or the like, and B represents formula (II):
wherein a represents 0 or 1, X represents an oxygen atom or NH, Y represents OR 1 or NHR 2 (wherein R 1 and R 2 each represent alkyl optionally having one or more substituents or the like), and Z 1 and Z 2 each represent a hydrogen atom, NR 3 R 4 (wherein R 3 and R 4 each represent alkyl optionally having one or more substituents or the like) or the like, and the like are provided.
摘要:
A composition comprising: (a) from 0.1% to 20% of at least one cyclic compound having a nitroxyl group and a thioamide group; and (b) a lubricating oil.
摘要:
A lubricant composition for continuous variable transmissions which comprises a base oil and auxiliaries incorporated therein which are a sulfur-based extreme pressure additive (A), a phosphorus-based extreme pressure additive (B), and an alkaline earth metal-based detergent (C). It is superior in wear resistance and extreme pressure properties and keeps the coefficient of friction high for a long period of time, so that it is capable of transmitting a large capacity of torque when it is applied to an continuous variable transmission. It is particularly suitable for a transmission of metal belt type.
摘要:
A turbine lubricating oil comprising: (A) an amine antioxidant selected from alkylated diphenylamines phenyl-naphthylamines and mixtures thereof; (B) a sulfur containing compound selected from sulfurized olefins, sulfurized fatty acids, ashless dithiocarbamates, tetraalkylthiuram disulfides and mixtures thereof; and (C) a base oil having a sulfur content of less than 0.03 wt. % and greater than 90 volume % saturates.
摘要:
The invention provides certain carbonates which have been prepared by reacting alkylamines with dialkylcarbonates and/or alkylene carbonates, and their use as friction reducing additives in fuels and lubes.
摘要:
A lubricating oil composition which exhibits improved fuel economy and fuel economy retention which contains the combination of an overbased oil soluble calcium detergent additive and an oil soluble trinuclear friction modifying molybdenum compound, the two components functioning to provide an improvement in the friction reducing properties of the composition.
摘要:
The present invention is a lubricating oil, especially a lubricating oil for internal combustion engines, which has friction-reducing properties even under sliding conditions varying substantially in internal combustion engines and the like and which can retain friction-reducing properties over an extend even in the presence of nitrogen oxide gas. The lubricating oil composition contains a lubricating base oil, and an organomolybdenum compound, an organomono-sulfide compound, and an organopolysulfide compound.
摘要:
A graphite-free lubricating oil which comprises a base oil having dispersed therein 10 to 40% by weight of a carbohydrate and/or a derivative thereof whose particle size ranges from 10 to 150 mu m, 2 to 20% by weight of a film-boosting agent and 0.1 to 20% by weight of a dispersant. Moreover, the lubricating oil is free of black-colored substances such as graphite. Therefore, the oil permits the improvement of working surroundings and exhibits excellent properties such as formability through forging almost comparable to or even greater than that of the commercially available graphite-in-oil type lubricating oils. The lubricating oil can be used instead of the graphite-containing lubricating oils for warm forging, hot forging, rolling, tube-manufacturing, drawing and extrusion in place of the graphite-containing lubricating oils and ensures the improvement in the working surroundings and excellent lubricity.
摘要:
This invention relates to a composition, comprising: (A) a compound represented by the formula wherein in Formula (A-I), R 1 , R 2 , R 3 and R 4 are independently hydrocarbyl groups, X 1 and X 2 are independently O or S, and n is zero to 3; and (B) an acylated nitrogen-containing compound having a substituent of at least 10 aliphatic carbon atoms. In one embodiment, the inventive composition further comprises (C) a second phosphorus compound other than (A), said second phosphorus compound being a phosphorus acid, phosphorus acid ester, phosphorus acid salt, or derivative thereof. In one embodiment, the inventive composition further comprises (D) an alkali or alkaline earth metal salt of an organic sulfur acid, carboxylic acid or phenol. In one embodiment, the inventive composition further comprises (E) a thiocarbamate. In one embodiment the inventive composition further comprises (F) an organic sulfide. These compositions are useful in providing lubricating compositions and functional fluids with enhanced antiwear properties.
摘要:
An engine oil composition is composed of: (1) at least one oil selected from the group consisting of a mineral oil and a synthetic lubricant as a base oil; (2) a molybdenum dithicarbamate in an amount of 50 to 2000 ppm by weight when calculated as molybdenum (Mo), relative to the total weight of the engine oil composition; (3) zinc dithiophosphate in an amount of 0.01 to 0.2 wt% when calculated as phosphorus (P), relative to the total amount of the engine oil composition; and (4) an ashless organic polysulfide compound in an amount of 0.01 to 0.4 wt% when calculated as sulfur (S), relative to the total amount of the engine oil composition.