LESS CORROSIVE ORGANIC COMPOUNDS AS LUBRICANT ADDITIVES

    公开(公告)号:US20210139806A1

    公开(公告)日:2021-05-13

    申请号:US17144620

    申请日:2021-01-08

    IPC分类号: C10M133/56 C10M133/16

    摘要: A mixture of compounds, in which the mixture is a liquid at room temperature, represented by the following formula: where R1 consists of a mixture of at least one unsaturated or branched hydrocarbon chain and at least one saturated or unbranched hydrocarbon chain, R2 is either a hydrogen atom or a hydrocarbon chain, and m and n are independently from 1 to 5, when used in a lubricating composition, being effective for friction and wear reduction, while providing improved protection against copper and lead corrosion in an engine.

    LUBRICATING OIL COMPOSITIONS HAVING IMPROVED CLEANLINESS AND WEAR PERFORMANCE

    公开(公告)号:US20190127655A1

    公开(公告)日:2019-05-02

    申请号:US16151462

    申请日:2018-10-04

    摘要: A method for improving wear control, while maintaining or improving deposit control and cleanliness, in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and specific combinations of low soap detergents, dispersants, and/or mixtures thereof, as a minor component. The low soap detergents include alkaline earth metal salicylates, alkaline earth metal sulfonates, or mixtures thereof, all having the same or different total base number (TBN). The total amount of soap delivered by the low soap detergent is less than 0.60 weight percent of the lubricating oil. The dispersants include borated and/or non-borated polyisobutylene succinimide (PIMA) having a basic nitrogen content of 1% or greater. The lubricating oils are useful in internal combustion engines.