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Process for producing oil-soluble derivatives of unsaturated C. sub.4 -C. sub.10 dicarboxylic acid materials
Process for producing oil-soluble derivatives of unsaturated C. sub.4 -C. sub.10 dicarboxylic acid materials
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机译：制备不饱和C.sub.4-C的油溶性衍生物的方法。 sub.10二元羧酸材料
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摘要
An improved process for preparing oil-soluble derivatives of unsaturated C.sub.4 -C.sub.10 dicarboxylic acid materials, e.g. the product of the reaction of polyisobutylene and maleic anhydride, under Ene reaction conditions characterized in that said Ene reaction is conducted under acidic conditions as by conducting said reaction in the presence of from 0.01 to 5 wt. %, based on total weight of the reactants, of an oil-soluble strong organic acid containing a hydrogen dissociating moiety which has a pK of less than about 4.0, as exemplified by a C.sub. 15 to C.sub.76 hydrocarbyl-substituted sulfonic acid, whereby sediment resulting from said Ene reaction is markedly reduced to less than 1 wt. %.
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