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Fuel oil composition

  • US 20050039384A1
  • Filed: 06/30/2004
  • Published: 02/24/2005
  • Est. Priority Date: 07/03/2003
  • Status: Active Grant
First Claim
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1. A fuel oil composition which comprises a fuel oil having an inherent conductivity of less than 10 pS/m and an additive comprising:

  • (a) a polymethacrylate, polyacrylate or polyfumarate polymer not prepared from a quaternary ammonium monomer and having a number average molecular weight of 1,000 to 10,000,000; and

    either (b) a conductivity improver comprising (i) an olefin polysulfone and (ii) a polymeric polyamine reaction product of epichlorohydrin and an aliphatic primary monoamine or an N-aliphatic hydrocarbyl alkylene diamine, or the sulfonic acid salt of the polymeric polyamine reaction product, or (c) a conductivity improver comprising a hydrocarbon soluble copolymer of an alkylvinyl monomer and a cationic vinyl monomer, wherein the copolymer has an alkylvinyl monomer unit to cationic vinyl monomer unit ratio of from 1;

    1 to 10;

    1, the copolymer having a number average molecular weight of from 800 to 1,000,000.

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