| abstract |
Hydrocarbons substituted with at least two anhydride moieties, are useful as dispersants in aqueous based hydraulic fluids and as curing agents in epoxy resins. These anhydrides are produced by reaction of a hydrocarbon derived from a soft wax or liquid hydrocarbon with a molar excess of an organic anhydride, preferably using a molar ratio excess of 3:1 to 8:1 of maleic anhydride, and under free radical conditions. The products are insoluble in the parent hydrocarbons. |