| abstract |
An additive composition mixture and method for synergistically maintaining a low surface voltage of a distillate fuel comprising a synergistic conductivity improver additive composition for a distillate fuel. Said additive composition comprising: A) a mixture of (i) an alkenyl polysulfone polymer, (ii) a C 16 -C 24 substituted maleic / polyamine copolymer, (iii) a sulfonic acid, and (iv) an aromatic solvent; And B) (i) alkenyl of polysulfone polymer, (v) C 8 -C 18 aliphatic amine or diamine with epichlorohydrin, and the polymeric reaction product; (iii) sulfonic acid, (iv) aromatic solvent; And optionally (vi) a quaternary ammonium compound. The additive composition contains 30 to 60 wt.% Of component (A) and 30 to 60 wt.% Of component (B), based on the total weight of the additive composition. |