申请人:ETHYL PETROLEUM ADDITIVES LIMITED
公开号:EP0531585A1
公开(公告)日:1993-03-17
Additive concentrates, lubricating oil compositions and the use thereof are described. The compositions comprise one or more of each of the following oil-soluble additive components: a) a Mannich base ashless dispersant; b) a metal-free sulphur-containing antiwear and/or extreme pressure agent; c) a metal-free phosphorus-containing and nitrogen-containing antiwear and/or extreme pressure agent; and optionally but preferably, d) an amine salt of a carboxylic acid. Oils containing such additive components exhibit excellent performance under heavy duty service such as in the planetary spur gear test. In addition, such oils exhibit good demulsibility in the ASTM D1401 test procedure and good clean gear performance in the CRC L-60 test.
本文描述了添加剂浓缩物、润滑油组合物及其用途。这些组合物包含以下每种油溶性添加剂成分中的一种或多种:a) 曼尼希基无灰分散剂;b) 不含金属的含硫抗磨剂和/或极压剂;c) 不含金属的含磷和含氮抗磨剂和/或极压剂;以及可选但最好是 d) 羧酸胺盐。含有此类添加剂成分的机油在重负荷工作(如行星直齿轮试验)中表现出卓越的性能。此外,此类润滑油在 ASTM D1401 试验程序中表现出良好的抗乳化性,在 CRC L-60 试验中表现出良好的清洁齿轮性能。