| 摘要 |
A quaternary ammonium salt of an ester-lacetone represented by the formula <IMAGE> in which w represents 0 or 1, x and y alternately represent 0 and 1, z has value from 0 to 4, Ri, Rii, Riii and Riv, in instances where w is equal to 0, represent hydrogen or akyl radicals at least one of which is a hydrocarbyl radical having from 50-200 carbon atoms; in instances where w is equal to 1 at least one of Ri, Rii, Riii, Riv, Rv or Rvi, represents a hydrocarbyl radical of 50-200 carbon atoms and the remaining substituents are hydrogen or lower alkyl radicals, R is a divalent radical having from 2-10 carbon, or carbon and oxygen atoms, Rvii is hydrogen or a hydrocarbyl radical, and X is an anion is provided, as well as a method of preparation and a hydrocarbon lubricating oil composition containing same. |
