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, R1 and R4 each independently represent a hydrocarbon group having 6 to 18 carbon atoms and R2 and R3 each independently represent an alkylene group having 1 to 4 carbon atoms) (in the formula, R5 represents a hydrocarbon group having 6 to 18 carbon atoms and R6 and R7 each independently represent an alkylene group having 1 to 4 carbon atoms).
摘要:
A lubricant for use in a refrigerator which operates with a chlorine-free Flon (fluorocarbon)-type refrigerant whose molecules do not contain chlorine. The lubricant contains a synthetic oil, and molybdenumoxysulfide diorganophosphorodithioate given by the following formula (1) and/or molybdenumoxysulfide diorganodithiocarbamate given by the following formula (2), the content of the compounds of formulae (1) and (2) in total ranges from 0.1 to 10 wt % to the content of the synthetic oil: {(RO)2PS2}2Mo2SXOY (1) where R represents a hydrocarbon group having 3 to 20 carbon atoms, and X and Y are numbers which meet the conditions of O≦X≦4, 0≦Y≦4 and X+Y=4; and (R′2NCS2)2Mo2SX′OY′ (2) where R′ is a hydrocarbon group having 3 to 20 carbon atoms and X′ and Y′ are numbers which meet the conditions of )≦X′≦4, 0≦Y′≦4 and X′+Y′=4.
摘要翻译:一种用于冰箱的润滑剂,其用分子不含氯的无氯Flon(氟碳)型制冷剂操作。 润滑剂含有合成油和由下式(1)给出的氧化钼二硫化物二有机二硫代磷酸酯和/或由下式(2)给出的二氧硫化二硅二有机二硫代氨基甲酸酯,式(1)和(2)化合物的含量总计为 相对于合成油的含量为0.1〜10重量%:其中R表示碳原子数3〜20的烃基,X和Y为满足O <= X <= 4,0 <= Y < = 4,X + Y = 4; 并且其中R'是具有3至20个碳原子的烃基,X'和Y'是满足条件的数字)= = X'<= 4,0 <= Y'<= 4和X'+ Y'= 4。
摘要:
A process for producing molybdenum oxysulfide dithiocarbamate (MoDTC) by reacting [A] an aqueous solution or suspension prepared by reacting (a) a compound having hexavalent molybdenum, with (b) an alkali hydrogensulfide or an alkali sulfide, [B] a carbon disulfide, [C] a secondary amine and [D] a mineral acid, wherein [E] a reducing agent is added and reacted at any stage, and a lubricating oil composition containing the compound obtained according to said process. MoDTC can be efficiently produced in high yields by using a hexavalent molybdenum compound as a starting material, and the produced MoDTC has low corrosive action, excellent wear characteristics and excellent lubricating properties.
摘要:
The objective of the present invention resides in providing a lubricant for refrigerators that reacts rapidly with free acids and contains a stabilizer that has good compatibility with a chlorine-free Flon-thpe coolant such as Flon 134a and the like whose molecules do not contain chlorine. The lubricant for refrigerators employing a chlorine-free Flon-type coolant in accordance with the present invention 100 parts by weight of a synthetic oil and is compounded with 0.05 to 15 parts by weight of an alicyclic epoxy compound having one or more functional groups represented by the following formula: ##STR1## (wherein R.sub.1 and R.sub.2 independently represent a hydrogen or methyl group, and may be the same or different).
摘要:
A powdery molybdenum oxysulfide dithiocarbamate composition which comprises a compound represented by the following general formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independent hydrocarbyl groups and may be the same or different groups, and the total number of carbon atoms contained in R.sup.1 to R.sup.4 is 4 to 36; and wherein X is sulfur or oxygen and the composition of the total of all Xs is given as S.sub.m O.sub.n in which n and m satisfy the ranges of 1.7.ltoreq.m.ltoreq.3.5 and 0.5.ltoreq.n.ltoreq.2.3, respectively, and in which the constituent particles have diameters of not larger than 50 .mu.m. The present invention also relates to a process for production of the composition and a grease composition containing the same.
摘要:
Provided is a lubricating oil composition for an internal combustion engine, including as essential components the following component (A), component (B), and component (C), in which a phosphorus content of the composition is 50 ppm by mass to 1,000 ppm by mass: Component (A): a base oil; Component (B): a compound represented by the following general formula (1); and Component (C): a metal-containing antioxidant: where R1 to R8 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, Z represents a hydrocarbon group having 2 to 20 carbon atoms, and n represents a number of 1 to 10.
摘要:
A lubricating oil additive capable of providing an antioxidant which enables a lubricating oil composition to have long drain intervals, while reducing specific components such as metals and phosphorus atoms, and a lubricating oil composition containing the lubricating oil additive are provided. A phosphorus molybdenum compound represented by the following general formula (1) where R1, R2, and R3 each independently represent a hydrocarbon group having 1 to 20 carbon atoms is also provided.
摘要:
A lubricating oil additive capable of providing an antioxidant which enables a lubricating oil composition to have long drain intervals, while reducing specific components such as metals and phosphorus atoms, and a lubricating oil composition containing the lubricating oil additive are provided. A phosphorus molybdenum compound represented by the following general formula (1) where R1, R2, and R3 each independently represent a hydrocarbon group having 1 to 20 carbon atoms is also provided.
摘要:
The present invention is a lubricant composition, composed of a lubricant base oil containing: a (poly)glyceryl ether represented by the following general formula (1) (wherein R1 represents a hydrocarbon group and n represents a numeral being 1 or more.), as a (A) component; and an alkaline-earth metal salt of an organic acid as a (B) component. Furthermore, it is preferable to contain an antioxidant as a (C) component. As an alkaline-earth metal salt of an organic acid, sulfonate, phenate, or salicylate are preferable, and neutral, basic or overbased calcium salicylate or calcium sulfonate are particularly preferable.
摘要:
The object of the present invention is to provide a lubricant for refrigerators having good compatibility with chlorine-free Flon-type coolants, good lubricity and resistant to hygroscopicity and a composition for refrigerators using this lubricant. This lubricant contains a monomethylether of polyoxyethyleneoxypropyleneglycol where the end group at the hydrogen terminal is an oxyethylene group, represented by the following general formula (1): CH3O(AO)m(CH2CH2O)nH wherein the AO group represents oxypropylene group, or copolymeric group of oxypropylene groups and oxyethylene groups wherein the copolymeric form may be a block type and/or a random type, m is a number of 1≦m≦50, n is a number of 1≦n≦10, and the content of the oxyethylene group in the compound ranges from 5 to 60 percent by weight. A composition for refrigerators using said lubricant is also provided.
摘要翻译:本发明的目的是提供一种与无氯Flon型冷却剂具有良好相容性,良好的润滑性和耐吸湿性的冰箱的润滑剂,以及使用该润滑剂的冰箱组合物。该润滑剂含有聚氧乙烯氧基丙二醇的单甲醚,其中末端 氢原子基团是由以下通式(1)表示的氧化乙烯基团:其中AO基团表示氧化亚丙基,或氧化丙烯基团和氧化乙烯基团的共聚基团,其中共聚形式可以是嵌段型和/或 随机型,m为1 <= m <= 50的数,n为1 <= n <10的数,化合物中氧乙烯基的含量为5〜60重量%。 还提供了使用所述润滑剂的冰箱组合物。