本公开描述了实现通过钢腐蚀、通过高温沉积物形成和乳液稳定性的低灰分润滑组合物。 该润滑组合物包括一种或多种选择的腐蚀或防锈化学物质,其具有带有酸性、羟基或胺部分但不含亚胺、酰亚胺和/或脒部分的油溶性无环结构。
一种铵基离子液体化合物,其包含三正辛基甲基铵阳离子和羧酸根阴离子。 包含它的润滑剂组合物,及其作为润滑剂、特别是船用润滑剂中的清净剂和/或抗腐蚀添加剂的用途。
Reaction products of A) polyalkenylsuccinic acid imidoamines of the formula I in which R is an aliphatic radical still containing at least one double bond and having an average molecular weight from 400 to 5000, and N-R is the radical of an aliphatic polyamine having 2 to 7 nitrogen atoms, to which one to two further polyalkenylsuccinic acid radicals can also be bound, under amidating conditions with B) a tri- or tetracarboxylic acid in a polyalkenylsuccinic acid radical:polycarboxylic acid molar ratio from 1:1 to 3:1 in the case of the tricarboxylic acid and 1:1 to 4:1 in the case of the tetracarboxylic acid.
本发明涉及一种压缩机油组合物及其用途，主要解决现有技术存在抗积炭性能差的问题。本发明通过采用以重量份数计，包括以下组份：a）100份矿物基础油；b）0.01～4份清净剂；c）0.01～5份分散剂；d）0.01～2.5份抗氧剂；所述清净剂由硫化烷基酚盐型清净剂和磺酸盐型清净剂组成的技术方案较好地解决了该问题，可用于往复式氢氮气压缩机、往复式循环气压缩机气缸油组合物的工业生产中。
The anti-shudder durability of power transmitting fluids, particularly automatic transmission fluids, is improved by incorporating a combination of low potency friction modifiers and phosphorus-containing compounds. The anti-shudder durability of these fluids may be further enhanced by inclusion of a metallic detergent and/or a polyol ester friction modifier.
本发明提供了一种内燃机润滑油组合物，包括：A>低碱值清净剂，占组合物总质量的0.1-5.0%；所述低碱值清净剂的制备方法包括：将有机硫膦酸、碱金属和/或碱土金属的氧化物、水、烷基水杨酸与无机酸和/或芳基羧酸促进剂同时或先后发生皂化反应，收集产物；B>高碱值清净剂，占组合物总质量的0.1-6.0%；C>分散剂，占组合物总质量的0.1-6.0%；D>抗氧化剂，占组合物总质量的0.1-2.0%；E>油性剂，占组合物总质量的0.01-5.0%；F>润滑基础油，构成组合物的主要成分。本发明内燃机润滑油组合物的磷含量低，具有优良的清净、分散、抗氧和防锈性能，能够减少低温油泥的产生，可以满足API？5W/30SJ的规格要求。
In accordance with the present invention, there are provided ashless heavy duty diesel lubricating oil compositions which comprise an oil of lubricating viscosity as the major component and as the minor component (A) at least 3 wt.% of at least one ashless dispersant, (B) at least 2 wt.% of at least one sulfurized alkyl phenol, and (C) at least 0.1 wt.% of at least one organo-sulfur compound of the formula wherein R⁴ and R⁵ are straight or branched chain alkyl, cyclic, alicyclic, aryl, alkylaryl or arylalkyl radicals having from 2 to about 30 carbon atoms, and w and z are numbers from 1 to about 8 wherein the lubricating oil is characterized by a total sulfated ash (SASH) level of less than 0.01 wt.%.
通过包括使共聚物与至少一种醚化合物和至少一种芳族化合物反应的方法制备的油溶性的润滑油添加剂组合物。
公开了包含三正辛基甲基铵阳离子和羧酸阴离子的基于铵的离子液体化合物在润滑剂组合物中作为防腐蚀添加剂的用途。还公开了该基于铵的离子液体化合物减少和/或消除和/或延迟内燃机内件腐蚀的方法，所述方法至少包括向内燃机应用基于铵的离子液体化合物的步骤。
