摘要:
An ester-based lubricating oil for use in a rotary screw compressor utilizing a chlorine-free hydrofluorocarbon (HFC) refrigerant such as R-134a contains a product obtained from a reaction of tripentaerythritol and a mixed C5-C10 monocarboxylic acid, or a product obtained from a reaction of dipentaerythritol and a mixed C5-C10 monocarboxylic acid, and optionally a product obtained from a reaction of dipentaerythritol and a C5 monocarboxylic acid.
摘要:
Provided is a lubricating oil composition for round die rolling, which is obtained by blending a base oil with: (A) 0.5 to 40 mass % of a monoester having 13 to 48 carbon atoms (a-1) and/or 0.5 to 30 mass % of a fatty dicarboxylate having 13 to 34 carbon atoms (a-2); (B) 0.01 to 10 mass % of a thiadiazole compound; (C) 0.01 to 15 mass % of a thiophosphite; and (D) 0.01 to 5 mass % of a triazole compound. The lubricating oil composition for round die rolling shows excellent processing performance without using any chlorine-based compound, and is able to improve lubricity in a bearing to lengthen the life of the bearing.
摘要:
The disclosed invention relates to lubricant compositions containing viscosity index improvers in the form of polymers comprising structural units derived from ethylene, propylene and butylenes.
摘要:
A lubricating oil composition having less than 0.2 wt. % sulfur, less than 50 ppm chlorine, less than 50 ppm phosphorus, a NOACK volatility of 15 wt. % or less comprising an organo-molybdenum compound, an overbased calcium or magnesium salicylate, a dispersant and a supplemental antioxidant.
摘要:
This invention relates to a lubricating oil composition, comprising: (A) a base oil; (B) an alkali or alkaline earth metal salt of a saligenin derivative; (C) an alkali or alkaline earth metal salt of a hydrocarbon-substituted salicylic acid, and (D) a metal salt of a phosphorus-containing compound.
摘要:
Provided is a lubricating oil composition for round die rolling, which is obtained by blending a base oil with: (A) 0.5 to 40 mass % of a monoester having 13 to 48 carbon atoms (a-1) and/or 0.5 to 30 mass % of a fatty dicarboxylate having 13 to 34 carbon atoms (a-2); (B) 0.01 to 10 mass % of a thiadiazole compound; (C) 0.01 to 15 mass % of a thiophosphite; and (D) 0.01 to 5 mass % of a triazole compound. The lubricating oil composition for round die rolling shows excellent processing performance without using any chlorine-based compound, and is able to improve lubricity in a bearing to lengthen the life of the bearing.
摘要:
A non-aqueous lubricating oil composition comprises a major amount of a base oil and a minor amount of an additive which is present in solution in the base oil and is a non-halide, non-aromatic ionic liquid which is a salt of general formula C+A−, with the cation, C+, being a quaternary phosphonium or quaternary ammonium ion having four hydrocarbyl groups, optionally containing heteroatoms, which hydrocarbyl groups do not all have the same number of carbon atoms, there being at least one long chain hydrocarbyl group having greater than 4 carbon atoms and at least one short chain hydrocarbyl group having fewer carbon atoms than each of the long chain hydrocarbyl groups, and the anion, A−, comprising at least one oxygen atom and having an ionic head group attached to at least one alkyl or alicyclic hydrocarbyl group which has at least four carbon atoms and optionally at least one heteroatom. The ionic liquid may be used as an anti-wear component in a lubricating oil composition. The ionic liquid may be used as a friction modifier in the lubricating oil composition. The lubricating oil composition may be used in an ignition engine.
摘要翻译:非水润滑油组合物包含主要量的基础油和少量的存在于基础油溶液中的添加剂,并且是非卤化物非芳族离子液体,其是通式的盐 C + A-,阳离子C +是具有四个烃基,任选地含有杂原子的季鏻或季铵离子,该烃基不都具有相同数目的碳原子,所以至少有一个长链烃基 具有大于4个碳原子的基团和至少一个具有比每个长链烃基少的碳原子的短链烃基,并且阴离子A-包含至少一个氧原子并且具有连接到 至少一个具有至少四个碳原子和任选至少一个杂原子的烷基或脂环烃基。 离子液体可以用作润滑油组合物中的抗磨损组分。 离子液体可用作润滑油组合物中的摩擦改进剂。 润滑油组合物可以用于点火发动机。
摘要:
A composition of matter comprising an amine acylated with a hydrocarbyl group substituted carboxylic acylating agent containing an average of from 1.3 to 1.6 groups derived from α,β-unsaturated carboxylic compounds per Mn of the hydrocarbyl group, wherein the hydrocarbyl group has Mn determined by GPC ranging from 1500 to 3000, the amine comprises polyamine bottoms and said acylated amine has total base number (TBN) ranging from 17 to 35. A method for preparing the composition, lubricating oils containing the composition and, in another embodiment, lubricating oil compositions of this invention further comprising a metal overbased sulfonate detergent.
摘要翻译:包含用烃基取代的羧酸酰化剂酰化的胺的物质组合物,其每平均含有衍生自α,β-不饱和羧酸化合物的平均1.3至1.6个基团,每个烃基,其中烃基具有通过GPC测定为1500至3000的 M n N,所述胺包括多胺底物,并且所述酰化胺具有总碱 编号(TBN)为17至35.一种制备组合物的方法,含有该组合物的润滑油,在另一个实施方案中,还包含金属高碱性磺酸盐清净剂的本发明的润滑油组合物。
摘要:
The present invention relates to a lubricating basestock for the blends of hydrofluorocarbon and optionally hydrochlorofluorocarbon refrigerants comprising a blend of (A) at least one alkylbenzene and (B) at least one polyol ester. While alkylbenzenes are not miscible with the refrigerant blend at the desired operating temperature and pressure of refrigeration or air-conditioning systems, the addition of low concentration of polyol ester is found to greatly improve the miscibility of the alkylbenzene and polyol ester blend. An important criteria of the invention is that the lubricant blend of polyol ester and alkylbenzene are sufficiently miscible with the hydrofluorocarbon refrigerant blend both as a liquid and a gaseous refrigerant over the operational temperatures of the compression refrigeration system.
摘要:
The invention provides methods for preparing a blended lube base oils comprising at least one highly paraffinic Fischer Tropsch lube base stocks and at least one base stock composed of alkylaromatics, alkylcycloparaffins, or mixtures thereof. The use of base stocks composed of alkylaromatics, alkylcycloparaffins, or mixtures thereof improves the yield of lube base oils from Fischer Tropsch facilities, as well as provides moderate improvements in physical properties including additive solubility. The invention provides processes for obtaining such blended lube base oils using the products of Fischer Tropsch processes.