A product is formed by interacting either concurrently or in any sequence at a suitable elevated temperature above 30°C (i) one or more highly-active sulphur-containing extreme pressure or anti-wear agents, (ii) one or more amines, and (iii) one or more weak acids, in proportions such that the mole percentages of sulphur in (i) to amino nitrogen in (ii) used in forming the product is in the range of 100:1 to 5:1, and the proportion of component (iii) used in forming the product is such that there are from 0.2 to 2 chemical equivalents of acid per equivalent of amino nitrogen in component (ii). Lubricant compositions, especially suitable as gear oils, containing such products, confer extended life on gears operated in them.
在高于 30°C 的适当升温条件下,通过同时或任意顺序作用形成一种产品:(i) 一种或多种高活性含
硫极压剂或抗磨剂;(ii) 一种或多种胺;(iii) 一种或多种弱酸,其比例为:用于形成产品的(i)中
硫与(ii)中
氨基氮的摩尔比为 100:1 至 5:1;用于形成产品的组分(iii)的比例为:组分(ii)中每一当量
氨基氮含有 0.2 至 2 个
化学当量的酸。2 至 2 个
化学当量的酸/组分(ii)中的
氨基氮当量。含有此类产品的润滑剂组合物,尤其适合用作齿轮油,可延长齿轮的使用寿命。