| 摘要 |
<p>Oil-soluble sulfonated polyols and oil-soluble, partially sulfonated polyol ester reaction products of C6-C10.000 hydrocarbon substituted C4-C10 dicarboxylic acid materials, e. g. alkenyl succinic anhydride, have been readily produced under reaction conditions characterized by conducting said reaction in the presence of at least a sediment-reducing amount of a hydrocarbon soluble C12-C80, preferably a C24-C36, hydrocarbon substituted sulfonic acid whereby sediment resulting from said reaction is markedly reduced to less than 1 vol.% and filtration of the reaction product is facilitated. The products are suitable as dispersants, in particular as additives for lubricating oils.</p> |
