Multifunctional additives from cashew nut shell liquid
    8.
    发明授权
    Multifunctional additives from cashew nut shell liquid 失效
    多功能添加剂从腰果壳液体

    公开(公告)号:US5916850A

    公开(公告)日:1999-06-29

    申请号:US965147

    申请日:1997-11-06

    摘要: A process for the preparation of amino di(alkylaryl) phosphorodithioate for use as an additive in a lubricant composition so as to impart improved coefficient of friction, wear reduction, antioxidant and extreme pressure properties, including the steps of(a) reacting a starting material selected from the group consisting of distilled cashew nut shell liquid and distilled hydrogenated cashew nut shell liquid with phosphorus pentasulfide to obtain unpolymerized cashew nut shell liquid phosphorodithioic acid, the reacting being carried out at a temperature ranging from 40 to 80.degree. C. when the starting material is distilled cashew nut shell liquid and at a temperature ranging up to 140.degree. C. and above when the starting material is distilled hydrogenated cashew nut shell liquid; and(b) condensing the unpolymerized cashew nut shell liquid phosphorodithioic acid with at least one amine to obtain the amino di(alkylaryl) phosphorodithioate. A lubricant containing a major proportion of a material selected from the group consisting of an oil of lubricating viscosity and a grease; and remainder an additive including amino di(alkylaryl)phosphorodithioate prepared by the foregoing process.

    摘要翻译: 一种制备用于润滑剂组合物中的添加剂的氨基二(烷基芳基)二硫代磷酸酯的方法,以提供改进的摩擦系数,磨损降低,抗氧化和极压性能,包括以下步骤:(a)使起始材料 选自蒸馏腰果壳液和蒸馏氢化腰果壳液与五硫化二磷组成的组,得到未聚合的腰果壳液体二硫代磷酸,反应在40〜80℃的温度下进行,当起始 材料为蒸馏后的腰果壳油,温度范围高达140℃以上时,原料为蒸馏氢化腰果壳液; 和(b)将未聚合的腰果壳液体二硫代磷酸与至少一种胺缩合以获得氨基二(烷基芳基)二硫代磷酸酯。 含有大部分选自润滑粘度油和油脂的材料的润滑剂的润滑剂; 并且其余为包括通过上述方法制备的氨基二(烷基芳基)二硫代磷酸酯的添加剂。