摘要:
This invention relates to synergistic antiwear compositions comprising an organomolybdenum complex and an organic sulfur compound selected from 2,5-dimercapto-1,3,4-thiadiazole derivatives, bisdithiocarbamate esters, metal dithiocarbamates, metal phosphorodithioates and phosphorodithioate esters. The organomolybdenum complex is a reaction product prepared by reacting 1 mole fatty oil, 1.0 to 2.5 moles diethanolamine and a molybdenum source. Lubricating compositions containing the synergistic compositions possess good antiwear properties and improved oxidation stability.
摘要:
Hybrid engines containing a metal-ceramic interface can be lubricated with composition comprising a carrier fluid and a molybdenum thiocarbamate. Friction and wear are low even when detergent and dispersant additives are present in the lubricant.
摘要:
This invention relates to compositions for improving fuel efficiency in internal combustion engines. The composition comprises a lubricant having an oil of lubricating viscosity and (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. These compositions are useful in providing lubricating compositions and fractional fluids with enhanced fuel efficiency properties.
摘要:
A rapid, batch Koch carbonylation/functionalization reaction of at least one polymer olefin, carbon monoxide, and an aliphatic or aryl alcohol in the presence of an acid catalyst with either an alcohol:polymer olefin mole ratio » 1:1, or an acid catalyst:polymer olefin mole ratio » 0.9:1, or both, and recovering at least 80 % functionalized polymer which is predominantly ester.
摘要:
The present invention provides a lubricating oil composition excellent in wear-resistant properties and frictional characteristics. The present invention relates to a lubricating oil composition obtained by containing in a lubricating base oil (A) a complex obtained by reacting a metallic salt of dithiophosphoric acid having lipophilic groups, the average number of the carbon atoms of which is 4 or more, with a primary alkylamine having 8 or less carbon atoms, and (B) at least one kind of compound selected from the group consisting of oxymolybdenum sulfide dithiocarbamate, oxymolybdenum sulfide organophosphorodithioate, fatty esters, and organic amides.
摘要:
Pre-blended combinations and reaction products of at least one metallic dithiocarbamate and at least one metallic dithiophosphate provide the synergism of antiwear properties with friction-reducing properties for lubricants and greases.
摘要:
A lubricating oil composition prepared by compounding a base oil with a metal dithiocarbamate represented by general formula (I) and an oil-soluble amino compound, wherein M represents zinc, copper, nickel, iron, cadmium, silver, lead, antimony, tin or bismuth; and R1, R2, R3 and R4 represent each independently a C1 to C13 oleophilic group provided that each group has on average more than one up to four carbon atoms. The composition contains scarcely any or no phosphorus and is excellent in wear resistance, extreme-pressure properties, frictional characteristics, oxidation stability and coking resistance, thus being suitably usable as a lubricating oil for internal combustion engines of automobiles.
摘要:
A method of preparing metal salts of substituted phosphoric acid compositions. Such metal salt compositions are useful in lubricating oils, fuels, functional fluids, aqueous systems and have utility as a high torque extreme pressure agent.
摘要:
A compound useful as a dispersant additive in oleaginous compositions selected from fuels and lubricating oils comprising the reaction products of: (i) at least one intermediate adduct comprised of the reaction products of (a) at least one polyepoxide, and (b) at least one member selected from the group consisting of polyamines, polyols, and amino alcohols; and (ii) at least one of (a) hydrocarbyl substituted C₄ - C₁₀ dicarboxylic acid producing material or (b) an aldehyde and a hydrocarbyl substituted hydroxy aromatic compound. Also included is a process for preparing said compound and an oleaginous composition containing said compound.