Oil-soluble phosphorus- and nitrogen-containing additives
    2.
    发明授权
    Oil-soluble phosphorus- and nitrogen-containing additives 失效
    油溶性含磷和含氮添加剂

    公开(公告)号:US5500140A

    公开(公告)日:1996-03-19

    申请号:US422407

    申请日:1995-03-31

    摘要: Additives are produced by (i) reacting an O,O-dihydrocarbyl phosphorodithioic acid with a monoepoxide or mixture of monoepoxides having in the range of 20 to about 30 carbon atoms in the molecule, (ii) reacting the product with phosphorus pentoxide to produce an acid phosphate intermediate, and (iii) neutralizing the intermediate with at least one amine. At least 50 mole % , and preferably all, of the hydrocarbyl groups of the O,O-dihydrocarbyl phosphorodithioic acid are secondary acyclic hydrocarbyl groups free of acetylenic unsaturation. The balance, if any, of such hydrocarbyl groups are primary acyclic hydrocarbyl groups free of acetylenic unsaturation. The additives are multifunctional in that they have limited slip properties, antiwear/extreme pressure properties, and corrosion inhibiting properties.

    摘要翻译: 通过(i)使O,O-二烃基二硫代磷酸与分子中具有20至约30个碳原子的单环氧化物或单环氧化物的混合物反应来制备添加剂,(ii)使产物与五氧化二磷反应以产生 酸性磷酸盐中间体,和(iii)用至少一种胺中和中间体。 O,O-二烃基二硫代磷酸的至少50摩尔%,优选全部烃基是不含炔属不饱和的仲无环烃基。 这种烃基的平衡(如果有的话)是不含炔属不饱和基团的初级无环烃基。 添加剂是多功能的,因为它们具有有限的滑动性能,耐磨/极压性能和腐蚀抑制性能。