摘要:
The purpose of the present invention is to provide a thiodicarboxylic acid ester which has high long-term storage stability without inhibiting antioxidant properties and wear-resistant properties of the thiodicarboxylic acid ester. In order to achieve the above-mentioned purpose, the present invention provides a lubricating oil additive composition which is characterized by containing a compound (A) represented by general formula (1) and a compound (B) represented by general formula (2) and by having an acid value of 0.01-0.4 mgKOH/g. (in the formula, R 1 and R 4 each independently represent a hydrocarbon group having 6 to 18 carbon atoms and R 2 and R 3 each independently represent an alkylene group having 1 to 4 carbon atoms) (in the formula, R 5 represents a hydrocarbon group having 6 to 18 carbon atoms and R 6 and R 7 each independently represent an alkylene group having 1 to 4 carbon atoms).
摘要:
Additives for lubricating oils and fuel oils, which contain as the main component disulfide compounds represented by the general formula (I) or (IV): R OOC-A -Sx-A -COOR (I) (wherein R and R are each independently C1-30 hydrocarbyl which may contain oxygen, sulfur or nitrogen; A and A are each independently CR R wherein R and R are each independently hydrogen or C1-20 hydrocarbyl; and x is 2), and R OOC-A -Sx-A -COOR (IV) (wherein R and R are as defined above; A and A are each independently CR R -CR R wherein R to R are each independently hydrogen or C1-20 hydrocarbyl; and x is 2). The additives exhibit excellent functions as extreme -pressure additive or anti-wear additive and little corrode nonferrous metals, thus being useful as sulfur-containing extreme-pressure additives suitable for lubricating oils and fuel oils.
摘要:
An additive for lubricating oils and fuel oils comprising a disulfide compound, as the main component, represented by the general formula (I):
R 1 OOC-CR 3 R 4 -CR 5 (COOR 2 )-S-S-CR 10 (COOR 7 )-CR 8 R 9 -COOR 6 ··· (I)
wherein R 1 , R 2 , R 6 , and R 7 each independently represent a hydrocarbyl group having from 1 to 30 carbon atoms and may contain an oxygen, sulfur, or nitrogen atom; and R 3 to R 5 and R 8 to R 10 each independently represent a hydrogen atom or hydrocarbyl group having from 1 to 5 carbon atoms, a lubricant oil composition and fuel oil composition comprising the additive are prepared to provide a sulfur-based extreme-pressure additive which exhibits excellent load carrying capacity and wear resistance and corrosion resistance against nonferrous metals and can be used in lubricating oils and fuel oils, and to provide a lubricating oil composition and fuel oil composition containing the additive.
摘要翻译:用于润滑油和燃料油的添加剂,其包含以通式(I)表示的二硫化物化合物作为主要成分:ƒ€ƒ€ƒ€ƒ€ƒ€ƒR1 OOC-CR 3 R 4 -CR 5(COOR 2)-SS-CR 10(COOR 7)-CR 8 R 9 -COOR 6 ...€ƒ€ƒ€ƒ(I)其中R 1,R 2,R 6, 和R 7各自独立地表示具有1至30个碳原子的烃基,并且可以含有氧,硫或氮原子; R 3〜R 5和R 8〜R 10各自独立地表示氢原子或碳原子数为1〜5的烃基,制备含有该添加剂的润滑油组合物和燃料油组合物, 表现出优异的承载能力和耐磨性和耐有色金属的耐腐蚀性的压力添加剂,可用于润滑油和燃料油中,并提供含有该添加剂的润滑油组合物和燃料油组合物。
摘要:
A diesel engine lubricant composition comprising a base stock, a dispersant and an antioxidant comprising an oil soluble trinuclear organomolybdenum compound of the generic formula: Mo 3 S x -(Q) (I) wherein x is from 4 to 10 and Q is a core is a core group, which may be a ligand, and at least one other compound selected from a phenolic and an aminic compound. The composition is capable of controlling the viscosity of the lubricant in the presence of soot and to retain the dispersancy of the dispersant. The compositions of the present invention minimise wear in engines and undesirable emission from exhaust caused by incomplete combustion from vehicles which use diesel engines and lubricants therefor. The combination of antioxidants perform better at controlling soot induced viscosity increase than the individual compounds.
摘要:
A diesel engine lubricant composition comprising a base stock, a dispersant and an antioxidant comprising an oil soluble trinuclear organomolybdenum compound of the generic formula: Mo 3 S x -(Q) (I) wherein x is from 4 to 10 and Q is a core is a core group, which may be a ligand, and at least one other compound selected from a phenolic and an aminic compound. The composition is capable of controlling the viscosity of the lubricant in the presence of soot and to retain the dispersancy of the dispersant. The compositions of the present invention minimise wear in engines and undesirable emission from exhaust caused by incomplete combustion from vehicles which use diesel engines and lubricants therefor. The combination of antioxidants perform better at controlling soot induced viscosity increase than the individual compounds.
摘要:
A lubricant composition for a surface treatment of a steel filament comprises at least one specified compound as a lubricant component and a rubber-steel filament composite body is prepared by using a steel filament treated with the lubricant composition.
摘要:
The first lubricating oil composition of the present invention is a composition comprising a polycarbonate represented by the following general formula, at least one compound as an essential component selected from the group consisting of epoxy compounds, phenol compounds, sulfur compounds and amine compounds, and a triester phosphite compound and a triester phosphate compound as an optical component.
R 1 OCOO[(R 2 O) p COO] n R 3
wherein R 1 and R 3 are each independently a specific hydrocarbon group or a specific hydrocarbon group containing an ether bond, R 2 is a specific alkylene group, and p and n are specific integers. The lubricating oil compositions are excellent in lubricating properties, cleaning properties and electrical insulating properties, and their viscosity at low temperature can readily be lowered and, in addition thereto, generation of carbon dioxide gas can be inhibited.
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:
The present invention resides in a turbo oil composition exhibiting enhanced antioxidancy and resistance to deposit formation, and to a method for achieving that result in turbo oils. The gas turbine lubricating oil of the present invention comprises a major proportion of synthetic polyol ester based base stock including diesters and polyol esters, preferably polyol ester based base stock and a minor proportion of an antioxidant/deposit control additive, specifically a sulfur-containing carboxylic acid (SCCA) derivative. Other conventional additives such as extreme pressure, pour point reduction, oxidative stability, anti-foaming, hydrolytic stability, improved viscosity index performance, anti-wear, and corrosion inhibitor additives and others may also be employed. The use of SCCA derivative produces a turbo oil exhibiting markedly superior oxidation stability and deposit control performance compared to that exhibited by turbo oil without the SCCA derivative.
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.