本发明涉及在100℃下运动粘度为约40至约300cSt的润滑剂添加剂浓缩物，其含有分散剂‑清净剂胶体复合物，其包括作为多胺和由具有约1300至大约2500的数均分子量和至少约65％的末端亚乙烯基含量的聚丁烯和琥珀酸酐和/或马来酸酐经由烯马来化法衍生的聚丁烯基琥珀酸酐(PIBSA)的反应产物的聚丁烯基琥珀酰亚胺分散剂，所述PIBSA具有大于1.7和小于约2.5的琥珀酸酐官能度；和包含总碱值为大约370至大约1000mg KOH/g的高碱性清净剂的清净剂胶体，其衍生自选自(i)磺酸盐；(ii)酚盐；和(iii)羧酸盐表面活性剂的一种或多种表面活性剂；浓缩物中分散剂与高碱性清净剂胶体的质量比为大约0.5至大约5.0；分散剂和高碱性胶体一起构成所述浓缩物的至少28质量％。
通过提供包括添加剂的原油提高原油溶解和/或分散沥青质的能力，所述添加剂包含(i)聚(丁烯基)苯磺酸；或(ii)聚(丙烯基)苯磺酸；或(iii)聚(丁烯基)苯磺酸和聚(丙烯基)苯磺酸的组合。
本发明涉及在100℃下运动粘度为约40至约300cSt的润滑剂添加剂浓缩物，其含有分散剂‑清净剂胶体复合物，其包括作为多胺和由具有约1300至大约2500的数均分子量和至少约65％的末端亚乙烯基含量的聚丁烯和琥珀酸酐和/或马来酸酐经由烯马来化法衍生的聚丁烯基琥珀酸酐(PIBSA)的反应产物的聚丁烯基琥珀酰亚胺分散剂，所述PIBSA具有大于1.7和小于约2.5的琥珀酸酐官能度；和包含总碱值为大约370至大约1000mg KOH/g的高碱性清净剂的清净剂胶体，其衍生自选自(i)磺酸盐；(ii)酚盐；和(iii)羧酸盐表面活性剂的一种或多种表面活性剂；浓缩物中分散剂与高碱性清净剂胶体的质量比为大约0.5至大约5.0；分散剂和高碱性胶体一起构成所述浓缩物的至少28质量％。
本公开涉及通过在油中提供一种添加剂组合减轻在烃油的中游工艺和运输以及上游运输中的结垢和/或沥青质附聚(或絮凝)，所述添加剂组合包含：(A)聚烯基取代的羧酸或酐，和(B)金属清净剂体系，其包含烃基取代的羟基苯甲酸金属盐、或烃基取代的磺酸金属盐或这两种盐的混合物或所述盐的络合物，其中(A)与(B)的质量:质量比在20:1至1:20的范围内且所述添加剂的处理率在5至10000质量ppm的范围内。
A lubricating oil composition, a method of reducing low-speed pre-ignition (LSPI) in a direct-injected spark-ignited internal combustion engine, and a use of a lubricant composition to reduce LSPI events in such an engine. Preferably, the composition comprises a detergent package comprising a borated calcium detergent, wherein the detergent package provides a calcium content in the composition of at least 0.12 wt%, based on the weight of the composition, and wherein the borated calcium detergent provides a boron content in the composition of at least 100 ppmw, based on the weight of the composition. Optionally, the composition comprises a first detergent comprising a calcium detergent, and a second detergent comprising a borated calcium detergent.
A lubricating oil composition comprises at least 50 percent by mass, based on the mass of the composition of an oil of lubricating viscosity and 0.01 to 25 percent by mass, based on the mass of the composition, of a compound having structure (I): wherein R1 and R2 are the same or different and are linear or branched alkyl groups having from 2 to 10, preferably from 2 to 8 carbon atoms. The compositions provide wear protection between sliding metal contacts, such as may be found in engines.
一种润滑油组合物包含50质量％或更多的具有润滑粘性的油和0.1至25质量％的至少一种结构(I)、(II)或(III)的化合物：其中X1和X2相同或不同并且是OH、NH2或SH；其中基团R1和R2相同或不同并且是具有1至50个碳原子的线性或支化、饱和或不饱和的烃基，条件是基团R1和R2的至少一个具有至少4个碳原子；并且其中m和n相同或不同并且是0或1至3的整数，条件是m和n不都为零。所述组合物可用于减轻或防止发动机中的沉积物并提供良好的沥青质分散力。
A transmission fluid composition contains a major amount of a lubricating oil basestock, and a minor amount of an additive package comprising: (i) a mixture comprising two or more phosphites and/or phosphates; (ii) one or more thioester compounds; (iii) a detergent comprising calcium salicylate; and (iv) a poly(alkylene amine)-based ashless dispersant endcapped with metallocene-catalyzed PAO arms. Such a transmission fluid may be used for controlling/reducing wear in at least partially electrically-powered transmissions and/or for cooling/insulating electrical/electronic components of at least partially electrically-powered drivetrains.
