| abstract |
(57) Abstract: Oils of low-precipitate, low-tar, chlorine-free compounds producing monounsaturated C3-C10 monocarboxylic acids and compounds producing monounsaturated C4-C10 dicarboxylic acids A method for producing a soluble polyalkenyl derivative by heating is disclosed. The method comprises reacting a compound that produces a mono- or dicarboxylic acid with a polyalkene at elevated temperature under a high partial pressure of an inert gas in the presence of a precipitate-inhibiting amount of a hydrocarbyl-substituted sulfonic acid. Polyalkenyl derivatives are themselves useful as additives in lubricating oils, functional fluids, and fuels, as well as other products useful as additives in lubricating oils, functional fluids, and fuels (eg, succinimides). )) Are also useful as intermediates. |